./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.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_8b6812a2-7060-41d8-92f8-b590566d34a7/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6812a2-7060-41d8-92f8-b590566d34a7/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_8b6812a2-7060-41d8-92f8-b590566d34a7/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6812a2-7060-41d8-92f8-b590566d34a7/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6812a2-7060-41d8-92f8-b590566d34a7/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_8b6812a2-7060-41d8-92f8-b590566d34a7/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 dc84e51e523cd7d1ed5e8ead538b5d3b5209e177ea77bffad6006fa4b66e1367 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:36:22,983 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:36:23,049 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6812a2-7060-41d8-92f8-b590566d34a7/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 19:36:23,053 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:36:23,054 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:36:23,077 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:36:23,077 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:36:23,078 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:36:23,079 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:36:23,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:36:23,080 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:36:23,080 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:36:23,081 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:36:23,082 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:36:23,082 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:36:23,083 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:36:23,083 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:36:23,084 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:36:23,084 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:36:23,085 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:36:23,086 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:36:23,086 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:36:23,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:36:23,088 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:36:23,088 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:36:23,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:36:23,089 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:36:23,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:36:23,090 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:36:23,090 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:36:23,090 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:36:23,091 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:36:23,091 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:36:23,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:36:23,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:36:23,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:36:23,098 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:36:23,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:36:23,098 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:36:23,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:36:23,099 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:36:23,099 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:36:23,100 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:36:23,100 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:36:23,100 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_8b6812a2-7060-41d8-92f8-b590566d34a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6812a2-7060-41d8-92f8-b590566d34a7/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc84e51e523cd7d1ed5e8ead538b5d3b5209e177ea77bffad6006fa4b66e1367 [2023-12-02 19:36:23,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:36:23,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:36:23,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:36:23,342 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:36:23,342 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:36:23,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6812a2-7060-41d8-92f8-b590566d34a7/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i [2023-12-02 19:36:26,133 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:36:26,768 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:36:26,768 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6812a2-7060-41d8-92f8-b590566d34a7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i [2023-12-02 19:36:26,837 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6812a2-7060-41d8-92f8-b590566d34a7/bin/utaipan-verify-nQ1chXbOIh/data/1d5124128/9975e5570f19479394f2eed6143ec4e4/FLAG897848341 [2023-12-02 19:36:26,848 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6812a2-7060-41d8-92f8-b590566d34a7/bin/utaipan-verify-nQ1chXbOIh/data/1d5124128/9975e5570f19479394f2eed6143ec4e4 [2023-12-02 19:36:26,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:36:26,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:36:26,852 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:36:26,853 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:36:26,857 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:36:26,858 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:36:26" (1/1) ... [2023-12-02 19:36:26,859 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7edd6fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:26, skipping insertion in model container [2023-12-02 19:36:26,859 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:36:26" (1/1) ... [2023-12-02 19:36:27,156 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:36:35,073 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_8b6812a2-7060-41d8-92f8-b590566d34a7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i[788125,788138] [2023-12-02 19:36:35,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:36:35,670 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:36:35,864 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [7034] [2023-12-02 19:36:35,865 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [7041] [2023-12-02 19:36:35,866 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [7054] [2023-12-02 19:36:35,870 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)); [7146] [2023-12-02 19:36:35,870 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)); [7153] [2023-12-02 19:36:35,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [7278] [2023-12-02 19:36:35,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7281] [2023-12-02 19:36:35,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7284] [2023-12-02 19:36:35,875 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7287] [2023-12-02 19:36:36,277 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___0): "ebx"); [10835] [2023-12-02 19:36:36,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___1): "ebx"); [10840] [2023-12-02 19:36:36,278 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___2): "ebx"); [10845] [2023-12-02 19:36:36,279 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___3): "ebx"); [10850] [2023-12-02 19:36:36,279 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___4): "ebx"); [10855] [2023-12-02 19:36:36,281 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (phones): "ebx"); [10884-10885] [2023-12-02 19:36:36,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (phones): "ebx"); [10888-10889] [2023-12-02 19:36:36,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (phones): "ebx"); [10892-10893] [2023-12-02 19:36:36,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (phones): "ebx"); [10896-10897] [2023-12-02 19:36:36,283 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (phones): "ebx"); [10900-10901] [2023-12-02 19:36:36,313 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; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [11810-11811] [2023-12-02 19:36:36,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (value): "ebx"); [13352] [2023-12-02 19:36:36,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (value): "ebx"); [13355] [2023-12-02 19:36:36,410 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (value): "ebx"); [13358] [2023-12-02 19:36:36,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (value): "ebx"); [13361] [2023-12-02 19:36:36,411 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (value): "ebx"); [13364] [2023-12-02 19:36:36,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [17507] [2023-12-02 19:36:36,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [17510] [2023-12-02 19:36:36,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [17513] [2023-12-02 19:36:36,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [17516] [2023-12-02 19:36:36,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [17532] [2023-12-02 19:36:36,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [17535] [2023-12-02 19:36:36,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [17538] [2023-12-02 19:36:36,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [17541] [2023-12-02 19:36:36,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___5): "ebx"); [19603] [2023-12-02 19:36:36,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___6): "ebx"); [19608] [2023-12-02 19:36:36,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___7): "ebx"); [19613] [2023-12-02 19:36:36,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___8): "ebx"); [19618] [2023-12-02 19:36:36,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (tmp___9): "ebx"); [19623] [2023-12-02 19:36:36,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (tmp___10): "ebx"); [19634-19635] [2023-12-02 19:36:36,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (tmp___11): "ebx"); [19640-19641] [2023-12-02 19:36:36,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (tmp___12): "ebx"); [19646-19647] [2023-12-02 19:36:36,646 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (tmp___13): "ebx"); [19652-19653] [2023-12-02 19:36:36,646 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (tmp___14): "ebx"); [19658-19659] [2023-12-02 19:36:36,659 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (tmp___63), "i" (1UL)); [20146-20147] [2023-12-02 19:36:36,804 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/5601/dscv_tempdir/dscv/ri/32_7a/drivers/isdn/i4l/isdn_ppp.c"), "i" (1000), "i" (12UL)); [23104-23105] [2023-12-02 19:36:36,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--32_7a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/5601/dscv_tempdir/dscv/ri/32_7a/drivers/isdn/i4l/isdn_ppp.c"), "i" (2550), "i" (12UL)); [24711-24712] [2023-12-02 19:36:37,162 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_8b6812a2-7060-41d8-92f8-b590566d34a7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i[788125,788138] [2023-12-02 19:36:37,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:36:37,689 WARN L675 CHandler]: The function strcat is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:36:37,689 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:36:37,690 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:36:37,690 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:36:37,690 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:36:37,698 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:36:37,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:37 WrapperNode [2023-12-02 19:36:37,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:36:37,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:36:37,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:36:37,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:36:37,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:37" (1/1) ... [2023-12-02 19:36:37,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:37" (1/1) ... [2023-12-02 19:36:38,491 INFO L138 Inliner]: procedures = 819, calls = 14355, calls flagged for inlining = 321, calls inlined = 265, statements flattened = 30073 [2023-12-02 19:36:38,492 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:36:38,493 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:36:38,493 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:36:38,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:36:38,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:37" (1/1) ... [2023-12-02 19:36:38,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:37" (1/1) ... [2023-12-02 19:36:38,603 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:37" (1/1) ... [2023-12-02 19:36:38,604 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:37" (1/1) ... [2023-12-02 19:36:39,050 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:37" (1/1) ... [2023-12-02 19:36:39,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:37" (1/1) ... [2023-12-02 19:36:39,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:37" (1/1) ... [2023-12-02 19:36:39,330 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:37" (1/1) ... [2023-12-02 19:36:39,505 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:36:39,506 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:36:39,506 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:36:39,507 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:36:39,507 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:37" (1/1) ... [2023-12-02 19:36:39,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:36:39,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6812a2-7060-41d8-92f8-b590566d34a7/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:36:39,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6812a2-7060-41d8-92f8-b590566d34a7/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:36:39,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b6812a2-7060-41d8-92f8-b590566d34a7/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:36:39,607 INFO L130 BoogieDeclarations]: Found specification of procedure qdisc_lock [2023-12-02 19:36:39,607 INFO L138 BoogieDeclarations]: Found implementation of procedure qdisc_lock [2023-12-02 19:36:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-12-02 19:36:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_compress [2023-12-02 19:36:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_compress [2023-12-02 19:36:39,608 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2023-12-02 19:36:39,608 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2023-12-02 19:36:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-12-02 19:36:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-12-02 19:36:39,609 INFO L130 BoogieDeclarations]: Found specification of procedure dst_link_failure [2023-12-02 19:36:39,609 INFO L138 BoogieDeclarations]: Found implementation of procedure dst_link_failure [2023-12-02 19:36:39,610 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-12-02 19:36:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-12-02 19:36:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2023-12-02 19:36:39,611 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2023-12-02 19:36:39,611 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-12-02 19:36:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-12-02 19:36:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-12-02 19:36:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-12-02 19:36:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_open [2023-12-02 19:36:39,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_open [2023-12-02 19:36:39,612 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_concap_dl_disconn_req [2023-12-02 19:36:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_concap_dl_disconn_req [2023-12-02 19:36:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2023-12-02 19:36:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2023-12-02 19:36:39,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_modem_info_mutex [2023-12-02 19:36:39,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_modem_info_mutex [2023-12-02 19:36:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-12-02 19:36:39,614 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2023-12-02 19:36:39,614 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2023-12-02 19:36:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-12-02 19:36:39,615 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-12-02 19:36:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_command [2023-12-02 19:36:39,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_command [2023-12-02 19:36:39,615 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_senddown [2023-12-02 19:36:39,616 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_senddown [2023-12-02 19:36:39,616 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-12-02 19:36:39,616 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-12-02 19:36:39,617 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_stat_callback [2023-12-02 19:36:39,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_stat_callback [2023-12-02 19:36:39,617 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-12-02 19:36:39,617 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-12-02 19:36:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_minor2drv [2023-12-02 19:36:39,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_minor2drv [2023-12-02 19:36:39,618 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_init [2023-12-02 19:36:39,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_init [2023-12-02 19:36:39,619 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-12-02 19:36:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-12-02 19:36:39,619 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-12-02 19:36:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-12-02 19:36:39,619 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_unlock_driver [2023-12-02 19:36:39,619 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_unlock_driver [2023-12-02 19:36:39,620 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-12-02 19:36:39,620 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-12-02 19:36:39,620 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2023-12-02 19:36:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2023-12-02 19:36:39,621 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_reset_regs [2023-12-02 19:36:39,621 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_reset_regs [2023-12-02 19:36:39,621 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2023-12-02 19:36:39,622 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2023-12-02 19:36:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2023-12-02 19:36:39,622 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2023-12-02 19:36:39,622 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2023-12-02 19:36:39,623 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2023-12-02 19:36:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 19:36:39,623 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2023-12-02 19:36:39,623 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2023-12-02 19:36:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_device_wake_queue [2023-12-02 19:36:39,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_device_wake_queue [2023-12-02 19:36:39,624 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-12-02 19:36:39,625 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-12-02 19:36:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-12-02 19:36:39,625 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-12-02 19:36:39,625 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_writebuf_skb_stub [2023-12-02 19:36:39,625 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_writebuf_skb_stub [2023-12-02 19:36:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_unexclusive_channel [2023-12-02 19:36:39,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_unexclusive_channel [2023-12-02 19:36:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_realrm [2023-12-02 19:36:39,627 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_realrm [2023-12-02 19:36:39,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-12-02 19:36:39,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-12-02 19:36:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 19:36:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2023-12-02 19:36:39,628 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2023-12-02 19:36:39,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:36:39,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-12-02 19:36:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-12-02 19:36:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-12-02 19:36:39,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-12-02 19:36:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 19:36:39,630 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-12-02 19:36:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-12-02 19:36:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-12-02 19:36:39,631 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-12-02 19:36:39,631 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-12-02 19:36:39,632 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_add_to_bundle [2023-12-02 19:36:39,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_add_to_bundle [2023-12-02 19:36:39,635 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-12-02 19:36:39,636 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-12-02 19:36:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_set_termios [2023-12-02 19:36:39,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_set_termios [2023-12-02 19:36:39,636 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_result [2023-12-02 19:36:39,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_result [2023-12-02 19:36:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-12-02 19:36:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-12-02 19:36:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-12-02 19:36:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-12-02 19:36:39,643 INFO L130 BoogieDeclarations]: Found specification of procedure set_global_features [2023-12-02 19:36:39,643 INFO L138 BoogieDeclarations]: Found implementation of procedure set_global_features [2023-12-02 19:36:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-12-02 19:36:39,644 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-12-02 19:36:39,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:36:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:36:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_disconn_ind [2023-12-02 19:36:39,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_disconn_ind [2023-12-02 19:36:39,645 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-12-02 19:36:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-12-02 19:36:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_write_room [2023-12-02 19:36:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_write_room [2023-12-02 19:36:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_timer_ctrl [2023-12-02 19:36:39,646 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_timer_ctrl [2023-12-02 19:36:39,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 19:36:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_info_update [2023-12-02 19:36:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_info_update [2023-12-02 19:36:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_lp_busy [2023-12-02 19:36:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_lp_busy [2023-12-02 19:36:39,647 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-12-02 19:36:39,647 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-12-02 19:36:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2023-12-02 19:36:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2023-12-02 19:36:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-12-02 19:36:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-12-02 19:36:39,648 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_receive [2023-12-02 19:36:39,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_receive [2023-12-02 19:36:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~int [2023-12-02 19:36:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~int [2023-12-02 19:36:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2023-12-02 19:36:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2023-12-02 19:36:39,649 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2023-12-02 19:36:39,649 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2023-12-02 19:36:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-12-02 19:36:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-12-02 19:36:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-12-02 19:36:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-12-02 19:36:39,650 INFO L130 BoogieDeclarations]: Found specification of procedure pdata_is_bad [2023-12-02 19:36:39,650 INFO L138 BoogieDeclarations]: Found implementation of procedure pdata_is_bad [2023-12-02 19:36:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_unbind_channel [2023-12-02 19:36:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_unbind_channel [2023-12-02 19:36:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 19:36:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 19:36:39,651 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_get_free_channel [2023-12-02 19:36:39,651 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_get_free_channel [2023-12-02 19:36:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-12-02 19:36:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-12-02 19:36:39,652 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-12-02 19:36:39,652 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-12-02 19:36:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_reset_vpar [2023-12-02 19:36:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_reset_vpar [2023-12-02 19:36:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 19:36:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_v110_open [2023-12-02 19:36:39,653 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_v110_open [2023-12-02 19:36:39,653 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-12-02 19:36:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-12-02 19:36:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_tiocmget [2023-12-02 19:36:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_tiocmget [2023-12-02 19:36:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_handleDLEdown [2023-12-02 19:36:39,654 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_handleDLEdown [2023-12-02 19:36:39,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 19:36:39,655 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-12-02 19:36:39,655 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-12-02 19:36:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure set_arg [2023-12-02 19:36:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure set_arg [2023-12-02 19:36:39,656 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2023-12-02 19:36:39,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2023-12-02 19:36:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_close [2023-12-02 19:36:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_close [2023-12-02 19:36:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-12-02 19:36:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-12-02 19:36:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_dial [2023-12-02 19:36:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_dial [2023-12-02 19:36:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure local_bh_disable [2023-12-02 19:36:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure local_bh_disable [2023-12-02 19:36:39,657 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_bind_channel [2023-12-02 19:36:39,657 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_bind_channel [2023-12-02 19:36:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2023-12-02 19:36:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-12-02 19:36:39,658 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-12-02 19:36:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-12-02 19:36:39,658 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-12-02 19:36:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-12-02 19:36:39,658 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-12-02 19:36:39,658 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-12-02 19:36:39,658 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-12-02 19:36:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_wildmat [2023-12-02 19:36:39,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_wildmat [2023-12-02 19:36:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_force_dial_lp [2023-12-02 19:36:39,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_force_dial_lp [2023-12-02 19:36:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-12-02 19:36:39,659 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-12-02 19:36:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_new [2023-12-02 19:36:39,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_new [2023-12-02 19:36:39,659 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_connect_ind [2023-12-02 19:36:39,659 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_connect_ind [2023-12-02 19:36:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_flush_buffer [2023-12-02 19:36:39,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_flush_buffer [2023-12-02 19:36:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_unlock_drivers [2023-12-02 19:36:39,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_unlock_drivers [2023-12-02 19:36:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-12-02 19:36:39,660 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-12-02 19:36:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mtx_of_isdn_devt [2023-12-02 19:36:39,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mtx_of_isdn_devt [2023-12-02 19:36:39,660 INFO L130 BoogieDeclarations]: Found specification of procedure skb_realloc_headroom [2023-12-02 19:36:39,661 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_realloc_headroom [2023-12-02 19:36:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2023-12-02 19:36:39,661 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2023-12-02 19:36:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_mp_init [2023-12-02 19:36:39,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_mp_init [2023-12-02 19:36:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 19:36:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_all_eaz [2023-12-02 19:36:39,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_all_eaz [2023-12-02 19:36:39,661 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-12-02 19:36:39,661 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-12-02 19:36:39,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 19:36:39,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 19:36:39,662 INFO L130 BoogieDeclarations]: Found specification of procedure illegal_state_warn [2023-12-02 19:36:39,662 INFO L138 BoogieDeclarations]: Found implementation of procedure illegal_state_warn [2023-12-02 19:36:39,662 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_skb_push [2023-12-02 19:36:39,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_skb_push [2023-12-02 19:36:39,662 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_dtmf_init [2023-12-02 19:36:39,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_dtmf_init [2023-12-02 19:36:39,662 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_ncarrier [2023-12-02 19:36:39,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_ncarrier [2023-12-02 19:36:39,663 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2023-12-02 19:36:39,663 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2023-12-02 19:36:39,663 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wait_until_sent [2023-12-02 19:36:39,663 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wait_until_sent [2023-12-02 19:36:39,663 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2023-12-02 19:36:39,663 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2023-12-02 19:36:39,663 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-12-02 19:36:39,663 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-12-02 19:36:39,663 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-12-02 19:36:39,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-12-02 19:36:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_put_dle_code [2023-12-02 19:36:39,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_put_dle_code [2023-12-02 19:36:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_ioctl [2023-12-02 19:36:39,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_ioctl [2023-12-02 19:36:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_writebuf_stub [2023-12-02 19:36:39,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_writebuf_stub [2023-12-02 19:36:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_dial_req [2023-12-02 19:36:39,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_dial_req [2023-12-02 19:36:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_write_super [2023-12-02 19:36:39,665 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_write_super [2023-12-02 19:36:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_cmd_ATA [2023-12-02 19:36:39,665 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_cmd_ATA [2023-12-02 19:36:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-12-02 19:36:39,665 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-12-02 19:36:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-12-02 19:36:39,665 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-12-02 19:36:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 19:36:39,665 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 19:36:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure tty_check_change [2023-12-02 19:36:39,666 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_check_change [2023-12-02 19:36:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure tty_buffer_request_room [2023-12-02 19:36:39,666 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_buffer_request_room [2023-12-02 19:36:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 19:36:39,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 19:36:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2023-12-02 19:36:39,666 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2023-12-02 19:36:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_status_callback [2023-12-02 19:36:39,666 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_status_callback [2023-12-02 19:36:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-12-02 19:36:39,667 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-12-02 19:36:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_hangup [2023-12-02 19:36:39,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_hangup [2023-12-02 19:36:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_lp_disconnected [2023-12-02 19:36:39,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_lp_disconnected [2023-12-02 19:36:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_proto_del [2023-12-02 19:36:39,667 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_proto_del [2023-12-02 19:36:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-12-02 19:36:39,668 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-12-02 19:36:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2023-12-02 19:36:39,668 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2023-12-02 19:36:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_device_busy [2023-12-02 19:36:39,668 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_device_busy [2023-12-02 19:36:39,668 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_lock_drivers [2023-12-02 19:36:39,668 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_lock_drivers [2023-12-02 19:36:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_close [2023-12-02 19:36:39,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_close [2023-12-02 19:36:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_getnum [2023-12-02 19:36:39,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_getnum [2023-12-02 19:36:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2023-12-02 19:36:39,677 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2023-12-02 19:36:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-12-02 19:36:39,678 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-12-02 19:36:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_poll [2023-12-02 19:36:39,678 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_poll [2023-12-02 19:36:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-12-02 19:36:39,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-12-02 19:36:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_change_speed [2023-12-02 19:36:39,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_change_speed [2023-12-02 19:36:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_carrier_raised [2023-12-02 19:36:39,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_carrier_raised [2023-12-02 19:36:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 19:36:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_ulaw2alaw [2023-12-02 19:36:39,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_ulaw2alaw [2023-12-02 19:36:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2023-12-02 19:36:39,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2023-12-02 19:36:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-12-02 19:36:39,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-12-02 19:36:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_150 [2023-12-02 19:36:39,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_150 [2023-12-02 19:36:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-12-02 19:36:39,681 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-12-02 19:36:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_device_stop_queue [2023-12-02 19:36:39,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_device_stop_queue [2023-12-02 19:36:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mtx_of_isdn_devt [2023-12-02 19:36:39,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mtx_of_isdn_devt [2023-12-02 19:36:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_shutdown [2023-12-02 19:36:39,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_shutdown [2023-12-02 19:36:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-12-02 19:36:39,682 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-12-02 19:36:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 19:36:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_get_msnstr [2023-12-02 19:36:39,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_get_msnstr [2023-12-02 19:36:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_reset [2023-12-02 19:36:39,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_reset [2023-12-02 19:36:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-12-02 19:36:39,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-12-02 19:36:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_frame_log [2023-12-02 19:36:39,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_frame_log [2023-12-02 19:36:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 19:36:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_flush_chars [2023-12-02 19:36:39,684 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_flush_chars [2023-12-02 19:36:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_ciscohdlck_alloc_skb [2023-12-02 19:36:39,684 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_ciscohdlck_alloc_skb [2023-12-02 19:36:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_map_eaz2msn [2023-12-02 19:36:39,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_map_eaz2msn [2023-12-02 19:36:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure FlipBits [2023-12-02 19:36:39,685 INFO L138 BoogieDeclarations]: Found implementation of procedure FlipBits [2023-12-02 19:36:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_free [2023-12-02 19:36:39,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_free [2023-12-02 19:36:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_alaw2ulaw [2023-12-02 19:36:39,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_alaw2ulaw [2023-12-02 19:36:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_tx_timeout [2023-12-02 19:36:39,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_tx_timeout [2023-12-02 19:36:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 19:36:39,686 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 19:36:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_star [2023-12-02 19:36:39,686 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_star [2023-12-02 19:36:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2023-12-02 19:36:39,687 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2023-12-02 19:36:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-12-02 19:36:39,688 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-12-02 19:36:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_adpcm_init [2023-12-02 19:36:39,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_adpcm_init [2023-12-02 19:36:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_open [2023-12-02 19:36:39,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_open [2023-12-02 19:36:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_proto_restart [2023-12-02 19:36:39,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_proto_restart [2023-12-02 19:36:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-12-02 19:36:39,689 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-12-02 19:36:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2023-12-02 19:36:39,690 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2023-12-02 19:36:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_exit [2023-12-02 19:36:39,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_exit [2023-12-02 19:36:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_findif [2023-12-02 19:36:39,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_findif [2023-12-02 19:36:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_writebuf_skb [2023-12-02 19:36:39,690 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_writebuf_skb [2023-12-02 19:36:39,691 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 19:36:39,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 19:36:39,691 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2023-12-02 19:36:39,691 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2023-12-02 19:36:39,691 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_tiocmset [2023-12-02 19:36:39,691 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_tiocmset [2023-12-02 19:36:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_chars_in_buffer [2023-12-02 19:36:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_chars_in_buffer [2023-12-02 19:36:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-12-02 19:36:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-12-02 19:36:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_cleanup_xmit [2023-12-02 19:36:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_cleanup_xmit [2023-12-02 19:36:39,693 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_throttle [2023-12-02 19:36:39,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_throttle [2023-12-02 19:36:39,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_modem_info_mutex [2023-12-02 19:36:39,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_modem_info_mutex [2023-12-02 19:36:39,693 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_on_hook [2023-12-02 19:36:39,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_on_hook [2023-12-02 19:36:39,693 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_unthrottle [2023-12-02 19:36:39,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_unthrottle [2023-12-02 19:36:39,694 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-12-02 19:36:39,694 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-12-02 19:36:39,694 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_reset_profile [2023-12-02 19:36:39,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_reset_profile [2023-12-02 19:36:39,694 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_header_cache_update [2023-12-02 19:36:39,695 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_header_cache_update [2023-12-02 19:36:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-12-02 19:36:39,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-12-02 19:36:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_mp_free_skb [2023-12-02 19:36:39,695 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_mp_free_skb [2023-12-02 19:36:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2023-12-02 19:36:39,696 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2023-12-02 19:36:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-12-02 19:36:39,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-12-02 19:36:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_calc_usage [2023-12-02 19:36:39,696 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_calc_usage [2023-12-02 19:36:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-12-02 19:36:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-12-02 19:36:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2023-12-02 19:36:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2023-12-02 19:36:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 19:36:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 19:36:39,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 19:36:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_stat_callback [2023-12-02 19:36:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_stat_callback [2023-12-02 19:36:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_add_channels [2023-12-02 19:36:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_add_channels [2023-12-02 19:36:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_free_channel [2023-12-02 19:36:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_free_channel [2023-12-02 19:36:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_v110_sync [2023-12-02 19:36:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_v110_sync [2023-12-02 19:36:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure get_arg [2023-12-02 19:36:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure get_arg [2023-12-02 19:36:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_device_started [2023-12-02 19:36:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_device_started [2023-12-02 19:36:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_msncmp [2023-12-02 19:36:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_msncmp [2023-12-02 19:36:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 19:36:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 19:36:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_v110_stat_callback [2023-12-02 19:36:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_v110_stat_callback [2023-12-02 19:36:39,700 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-12-02 19:36:39,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-12-02 19:36:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_install [2023-12-02 19:36:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_install [2023-12-02 19:36:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2023-12-02 19:36:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2023-12-02 19:36:39,701 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2023-12-02 19:36:39,701 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2023-12-02 19:36:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-12-02 19:36:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-12-02 19:36:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_tlookup [2023-12-02 19:36:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_tlookup [2023-12-02 19:36:39,702 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_swap_usage [2023-12-02 19:36:39,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_swap_usage [2023-12-02 19:36:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_concap_dl_data_req [2023-12-02 19:36:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_concap_dl_data_req [2023-12-02 19:36:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_minor2chan [2023-12-02 19:36:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_minor2chan [2023-12-02 19:36:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 19:36:39,703 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_v110_close [2023-12-02 19:36:39,703 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_v110_close [2023-12-02 19:36:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 19:36:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 19:36:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-12-02 19:36:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-12-02 19:36:39,704 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_paranoia_check [2023-12-02 19:36:39,704 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_paranoia_check [2023-12-02 19:36:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-12-02 19:36:39,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-12-02 19:36:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_xmit [2023-12-02 19:36:39,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_xmit [2023-12-02 19:36:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~X~$Pointer$~TO~VOID [2023-12-02 19:36:39,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~$Pointer$~X~int~X~$Pointer$~TO~VOID [2023-12-02 19:36:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_find_icall [2023-12-02 19:36:39,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_find_icall [2023-12-02 19:36:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-12-02 19:36:39,706 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-12-02 19:36:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_audio_linear2ulaw [2023-12-02 19:36:39,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_audio_linear2ulaw [2023-12-02 19:36:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~int~X~$Pointer$~TO~int [2023-12-02 19:36:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~int~X~$Pointer$~TO~int [2023-12-02 19:36:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_tint [2023-12-02 19:36:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_tint [2023-12-02 19:36:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2023-12-02 19:36:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2023-12-02 19:36:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 19:36:39,711 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 19:36:39,711 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_hangup [2023-12-02 19:36:39,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_hangup [2023-12-02 19:36:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_concap_dl_connect_req [2023-12-02 19:36:39,712 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_concap_dl_connect_req [2023-12-02 19:36:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-12-02 19:36:39,712 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-12-02 19:36:39,712 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_at_cout [2023-12-02 19:36:39,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_at_cout [2023-12-02 19:36:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_ccp_xmit_reset [2023-12-02 19:36:39,713 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_ccp_xmit_reset [2023-12-02 19:36:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-12-02 19:36:39,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-12-02 19:36:39,713 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-12-02 19:36:39,713 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-12-02 19:36:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-12-02 19:36:39,714 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-12-02 19:36:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_write [2023-12-02 19:36:39,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_write [2023-12-02 19:36:39,714 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_ioctl [2023-12-02 19:36:39,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_ioctl [2023-12-02 19:36:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_open [2023-12-02 19:36:39,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_open [2023-12-02 19:36:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_isdn_mutex [2023-12-02 19:36:39,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_isdn_mutex [2023-12-02 19:36:39,715 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_ccp_reset_free_state [2023-12-02 19:36:39,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_ccp_reset_free_state [2023-12-02 19:36:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_isdn_mutex [2023-12-02 19:36:39,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_isdn_mutex [2023-12-02 19:36:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_unreachable [2023-12-02 19:36:39,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_unreachable [2023-12-02 19:36:39,716 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_getrev [2023-12-02 19:36:39,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_getrev [2023-12-02 19:36:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-12-02 19:36:39,717 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-12-02 19:36:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_swapbind [2023-12-02 19:36:39,717 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_swapbind [2023-12-02 19:36:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_proto_new [2023-12-02 19:36:39,717 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_proto_new [2023-12-02 19:36:39,717 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_ppp_bind [2023-12-02 19:36:39,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_ppp_bind [2023-12-02 19:36:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_rm_from_bundle [2023-12-02 19:36:39,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_rm_from_bundle [2023-12-02 19:36:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-12-02 19:36:39,718 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-12-02 19:36:39,718 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_get_stats [2023-12-02 19:36:39,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_get_stats [2023-12-02 19:36:39,719 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-12-02 19:36:39,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-12-02 19:36:39,719 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_net_softint [2023-12-02 19:36:39,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_net_softint [2023-12-02 19:36:39,719 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_x25iface_proto_close [2023-12-02 19:36:39,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_x25iface_proto_close [2023-12-02 19:36:39,720 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_check_ats [2023-12-02 19:36:39,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_check_ats [2023-12-02 19:36:39,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:36:39,720 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_fax_modem_result [2023-12-02 19:36:39,720 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_fax_modem_result [2023-12-02 19:36:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-12-02 19:36:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2023-12-02 19:36:39,721 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2023-12-02 19:36:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_tty_modem_hup [2023-12-02 19:36:39,721 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_tty_modem_hup [2023-12-02 19:36:39,721 INFO L130 BoogieDeclarations]: Found specification of procedure isdn_dc2minor [2023-12-02 19:36:39,722 INFO L138 BoogieDeclarations]: Found implementation of procedure isdn_dc2minor [2023-12-02 19:36:41,670 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:36:41,677 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:36:41,958 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 19:37:30,152 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:37:46,532 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:37:46,532 INFO L309 CfgBuilder]: Removed 5 assume(true) statements. [2023-12-02 19:37:46,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:37:46 BoogieIcfgContainer [2023-12-02 19:37:46,537 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:37:46,540 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:37:46,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:37:46,543 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:37:46,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:36:26" (1/3) ... [2023-12-02 19:37:46,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f575e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:37:46, skipping insertion in model container [2023-12-02 19:37:46,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:37" (2/3) ... [2023-12-02 19:37:46,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f575e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:37:46, skipping insertion in model container [2023-12-02 19:37:46,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:37:46" (3/3) ... [2023-12-02 19:37:46,546 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--isdn--i4l--isdn.ko-entry_point.cil.out.i [2023-12-02 19:37:46,566 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:37:46,567 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:37:46,706 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:37:46,712 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;@7cc2a8ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:37:46,712 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:37:46,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 6520 states, 4267 states have (on average 1.4164518397000234) internal successors, (6044), 4482 states have internal predecessors, (6044), 1993 states have call successors, (1993), 260 states have call predecessors, (1993), 259 states have return successors, (1984), 1914 states have call predecessors, (1984), 1984 states have call successors, (1984) [2023-12-02 19:37:46,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-12-02 19:37:46,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:37:46,764 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:37:46,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:37:46,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:37:46,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1319870879, now seen corresponding path program 1 times [2023-12-02 19:37:46,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:37:46,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230734825] [2023-12-02 19:37:46,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:37:46,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:37:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:37:48,628 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-12-02 19:37:48,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:37:48,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230734825] [2023-12-02 19:37:48,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230734825] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:37:48,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:37:48,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:37:48,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207617745] [2023-12-02 19:37:48,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:37:48,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:37:48,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:37:48,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:37:48,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:37:48,683 INFO L87 Difference]: Start difference. First operand has 6520 states, 4267 states have (on average 1.4164518397000234) internal successors, (6044), 4482 states have internal predecessors, (6044), 1993 states have call successors, (1993), 260 states have call predecessors, (1993), 259 states have return successors, (1984), 1914 states have call predecessors, (1984), 1984 states have call successors, (1984) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 19:37:49,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:52,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:37:56,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:37:59,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:01,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:04,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:06,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:10,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:12,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:15,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:17,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:38:19,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:38:23,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:25,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:26,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:29,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:31,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:34,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:36,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:39,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:43,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:46,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:48,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:49,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:38:49,387 INFO L93 Difference]: Finished difference Result 18230 states and 28633 transitions. [2023-12-02 19:38:49,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:38:49,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 138 [2023-12-02 19:38:49,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:38:49,500 INFO L225 Difference]: With dead ends: 18230 [2023-12-02 19:38:49,500 INFO L226 Difference]: Without dead ends: 11710 [2023-12-02 19:38:49,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:38:49,581 INFO L413 NwaCegarLoop]: 9269 mSDtfsCounter, 7984 mSDsluCounter, 9019 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 5 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7984 SdHoareTripleChecker+Valid, 18288 SdHoareTripleChecker+Invalid, 1873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:38:49,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7984 Valid, 18288 Invalid, 1873 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1847 Invalid, 21 Unknown, 0 Unchecked, 59.8s Time] [2023-12-02 19:38:49,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11710 states. [2023-12-02 19:38:50,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11710 to 11687. [2023-12-02 19:38:50,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11687 states, 7640 states have (on average 1.4113874345549737) internal successors, (10783), 8031 states have internal predecessors, (10783), 3553 states have call successors, (3553), 494 states have call predecessors, (3553), 493 states have return successors, (3541), 3399 states have call predecessors, (3541), 3541 states have call successors, (3541) [2023-12-02 19:38:50,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11687 states to 11687 states and 17877 transitions. [2023-12-02 19:38:50,275 INFO L78 Accepts]: Start accepts. Automaton has 11687 states and 17877 transitions. Word has length 138 [2023-12-02 19:38:50,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:38:50,277 INFO L495 AbstractCegarLoop]: Abstraction has 11687 states and 17877 transitions. [2023-12-02 19:38:50,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-12-02 19:38:50,277 INFO L276 IsEmpty]: Start isEmpty. Operand 11687 states and 17877 transitions. [2023-12-02 19:38:50,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-02 19:38:50,286 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:38:50,286 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:38:50,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:38:50,287 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:38:50,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:38:50,287 INFO L85 PathProgramCache]: Analyzing trace with hash -752177927, now seen corresponding path program 1 times [2023-12-02 19:38:50,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:38:50,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55231414] [2023-12-02 19:38:50,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:38:50,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:38:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:38:51,511 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-12-02 19:38:51,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:38:51,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55231414] [2023-12-02 19:38:51,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55231414] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:38:51,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:38:51,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:38:51,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183896704] [2023-12-02 19:38:51,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:38:51,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:38:51,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:38:51,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:38:51,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:38:51,517 INFO L87 Difference]: Start difference. First operand 11687 states and 17877 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:38:53,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:38:56,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:00,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:39:02,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:05,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:08,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:11,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:14,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:18,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:19,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:39:19,009 INFO L93 Difference]: Finished difference Result 11689 states and 17878 transitions. [2023-12-02 19:39:19,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:39:19,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 148 [2023-12-02 19:39:19,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:39:19,117 INFO L225 Difference]: With dead ends: 11689 [2023-12-02 19:39:19,117 INFO L226 Difference]: Without dead ends: 11686 [2023-12-02 19:39:19,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:39:19,128 INFO L413 NwaCegarLoop]: 9066 mSDtfsCounter, 9930 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9930 SdHoareTripleChecker+Valid, 9066 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:39:19,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9930 Valid, 9066 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 902 Invalid, 9 Unknown, 0 Unchecked, 26.9s Time] [2023-12-02 19:39:19,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11686 states. [2023-12-02 19:39:19,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11686 to 11686. [2023-12-02 19:39:19,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11686 states, 7640 states have (on average 1.4112565445026177) internal successors, (10782), 8030 states have internal predecessors, (10782), 3552 states have call successors, (3552), 494 states have call predecessors, (3552), 493 states have return successors, (3541), 3399 states have call predecessors, (3541), 3541 states have call successors, (3541) [2023-12-02 19:39:19,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11686 states to 11686 states and 17875 transitions. [2023-12-02 19:39:19,981 INFO L78 Accepts]: Start accepts. Automaton has 11686 states and 17875 transitions. Word has length 148 [2023-12-02 19:39:19,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:39:19,982 INFO L495 AbstractCegarLoop]: Abstraction has 11686 states and 17875 transitions. [2023-12-02 19:39:19,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:39:19,983 INFO L276 IsEmpty]: Start isEmpty. Operand 11686 states and 17875 transitions. [2023-12-02 19:39:19,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-02 19:39:19,988 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:39:19,989 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:39:19,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 19:39:19,989 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:39:19,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:39:19,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1845836332, now seen corresponding path program 1 times [2023-12-02 19:39:19,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:39:19,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756025074] [2023-12-02 19:39:19,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:39:19,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:39:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:39:20,858 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-12-02 19:39:20,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:39:20,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756025074] [2023-12-02 19:39:20,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756025074] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:39:20,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:39:20,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:39:20,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325939219] [2023-12-02 19:39:20,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:39:20,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:39:20,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:39:20,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:39:20,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:39:20,862 INFO L87 Difference]: Start difference. First operand 11686 states and 17875 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:39:23,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:25,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:29,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:39:31,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:35,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:37,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:39,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:43,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:46,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:48,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:50,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:52,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:53,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:39:59,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:40:01,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:40:07,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:08,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:40:08,162 INFO L93 Difference]: Finished difference Result 16594 states and 25023 transitions. [2023-12-02 19:40:08,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:40:08,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 149 [2023-12-02 19:40:08,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:40:08,271 INFO L225 Difference]: With dead ends: 16594 [2023-12-02 19:40:08,272 INFO L226 Difference]: Without dead ends: 16590 [2023-12-02 19:40:08,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:40:08,291 INFO L413 NwaCegarLoop]: 9086 mSDtfsCounter, 7931 mSDsluCounter, 5066 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 2 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7931 SdHoareTripleChecker+Valid, 14152 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:40:08,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7931 Valid, 14152 Invalid, 1493 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1476 Invalid, 15 Unknown, 0 Unchecked, 46.5s Time] [2023-12-02 19:40:08,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16590 states. [2023-12-02 19:40:09,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16590 to 16586. [2023-12-02 19:40:09,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16586 states, 10756 states have (on average 1.3993120119003346) internal successors, (15051), 11324 states have internal predecessors, (15051), 4986 states have call successors, (4986), 844 states have call predecessors, (4986), 843 states have return successors, (4977), 4771 states have call predecessors, (4977), 4977 states have call successors, (4977) [2023-12-02 19:40:09,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16586 states to 16586 states and 25014 transitions. [2023-12-02 19:40:09,499 INFO L78 Accepts]: Start accepts. Automaton has 16586 states and 25014 transitions. Word has length 149 [2023-12-02 19:40:09,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:40:09,500 INFO L495 AbstractCegarLoop]: Abstraction has 16586 states and 25014 transitions. [2023-12-02 19:40:09,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:40:09,500 INFO L276 IsEmpty]: Start isEmpty. Operand 16586 states and 25014 transitions. [2023-12-02 19:40:09,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-02 19:40:09,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:40:09,506 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:40:09,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 19:40:09,507 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:40:09,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:40:09,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1389503652, now seen corresponding path program 1 times [2023-12-02 19:40:09,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:40:09,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810006062] [2023-12-02 19:40:09,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:40:09,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:40:09,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:40:10,478 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-12-02 19:40:10,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:40:10,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810006062] [2023-12-02 19:40:10,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810006062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:40:10,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:40:10,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:40:10,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825721067] [2023-12-02 19:40:10,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:40:10,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:40:10,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:40:10,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:40:10,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:40:10,481 INFO L87 Difference]: Start difference. First operand 16586 states and 25014 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:40:12,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:15,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:20,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:23,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:25,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:27,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:29,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:31,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:38,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:39,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:40:39,012 INFO L93 Difference]: Finished difference Result 16588 states and 25015 transitions. [2023-12-02 19:40:39,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:40:39,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 150 [2023-12-02 19:40:39,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:40:39,091 INFO L225 Difference]: With dead ends: 16588 [2023-12-02 19:40:39,091 INFO L226 Difference]: Without dead ends: 16585 [2023-12-02 19:40:39,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:40:39,108 INFO L413 NwaCegarLoop]: 9060 mSDtfsCounter, 9922 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9922 SdHoareTripleChecker+Valid, 9060 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:40:39,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9922 Valid, 9060 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 905 Invalid, 6 Unknown, 0 Unchecked, 27.9s Time] [2023-12-02 19:40:39,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16585 states. [2023-12-02 19:40:40,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16585 to 16585. [2023-12-02 19:40:40,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16585 states, 10756 states have (on average 1.3992190405355152) internal successors, (15050), 11323 states have internal predecessors, (15050), 4985 states have call successors, (4985), 844 states have call predecessors, (4985), 843 states have return successors, (4977), 4771 states have call predecessors, (4977), 4977 states have call successors, (4977) [2023-12-02 19:40:40,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16585 states to 16585 states and 25012 transitions. [2023-12-02 19:40:40,398 INFO L78 Accepts]: Start accepts. Automaton has 16585 states and 25012 transitions. Word has length 150 [2023-12-02 19:40:40,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:40:40,398 INFO L495 AbstractCegarLoop]: Abstraction has 16585 states and 25012 transitions. [2023-12-02 19:40:40,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:40:40,399 INFO L276 IsEmpty]: Start isEmpty. Operand 16585 states and 25012 transitions. [2023-12-02 19:40:40,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-02 19:40:40,402 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:40:40,402 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:40:40,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 19:40:40,402 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:40:40,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:40:40,403 INFO L85 PathProgramCache]: Analyzing trace with hash -128087593, now seen corresponding path program 1 times [2023-12-02 19:40:40,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:40:40,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892767205] [2023-12-02 19:40:40,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:40:40,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:40:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:40:41,272 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-12-02 19:40:41,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:40:41,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892767205] [2023-12-02 19:40:41,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892767205] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:40:41,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:40:41,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:40:41,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403192491] [2023-12-02 19:40:41,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:40:41,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:40:41,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:40:41,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:40:41,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:40:41,274 INFO L87 Difference]: Start difference. First operand 16585 states and 25012 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:40:43,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:46,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:50,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:40:52,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:55,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:40:58,534 WARN L539 Checker$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 19:41:00,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:02,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:11,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:13,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:15,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:41:16,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:41:19,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:21,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:41:21,911 INFO L93 Difference]: Finished difference Result 37887 states and 57155 transitions. [2023-12-02 19:41:21,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:41:21,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 151 [2023-12-02 19:41:21,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:41:22,002 INFO L225 Difference]: With dead ends: 37887 [2023-12-02 19:41:22,002 INFO L226 Difference]: Without dead ends: 21325 [2023-12-02 19:41:22,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:41:22,103 INFO L413 NwaCegarLoop]: 9063 mSDtfsCounter, 9997 mSDsluCounter, 3123 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 4 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9997 SdHoareTripleChecker+Valid, 12186 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:41:22,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9997 Valid, 12186 Invalid, 1295 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1279 Invalid, 12 Unknown, 0 Unchecked, 39.4s Time] [2023-12-02 19:41:22,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21325 states. [2023-12-02 19:41:23,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21325 to 21318. [2023-12-02 19:41:23,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21318 states, 13775 states have (on average 1.3938294010889292) internal successors, (19200), 14518 states have internal predecessors, (19200), 6377 states have call successors, (6377), 1169 states have call predecessors, (6377), 1165 states have return successors, (6581), 6098 states have call predecessors, (6581), 6369 states have call successors, (6581) [2023-12-02 19:41:23,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21318 states to 21318 states and 32158 transitions. [2023-12-02 19:41:23,576 INFO L78 Accepts]: Start accepts. Automaton has 21318 states and 32158 transitions. Word has length 151 [2023-12-02 19:41:23,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:41:23,576 INFO L495 AbstractCegarLoop]: Abstraction has 21318 states and 32158 transitions. [2023-12-02 19:41:23,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:41:23,577 INFO L276 IsEmpty]: Start isEmpty. Operand 21318 states and 32158 transitions. [2023-12-02 19:41:23,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-02 19:41:23,581 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:41:23,581 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:41:23,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 19:41:23,581 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:41:23,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:41:23,581 INFO L85 PathProgramCache]: Analyzing trace with hash 321109439, now seen corresponding path program 1 times [2023-12-02 19:41:23,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:41:23,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476370786] [2023-12-02 19:41:23,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:41:23,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:41:23,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:41:24,506 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-12-02 19:41:24,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:41:24,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476370786] [2023-12-02 19:41:24,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476370786] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:41:24,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:41:24,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:41:24,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856804792] [2023-12-02 19:41:24,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:41:24,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:41:24,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:41:24,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:41:24,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:41:24,509 INFO L87 Difference]: Start difference. First operand 21318 states and 32158 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:41:26,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:29,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:33,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:41:36,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:40,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:42,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:45,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:49,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:51,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:53,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:55,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:56,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:41:58,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:00,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:02,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:04,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:07,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:42:09,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:42:14,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:16,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:20,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:22,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:26,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:28,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:33,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:36,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:39,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:39,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:42:39,700 INFO L93 Difference]: Finished difference Result 42391 states and 63950 transitions. [2023-12-02 19:42:39,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:42:39,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2023-12-02 19:42:39,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:42:39,930 INFO L225 Difference]: With dead ends: 42391 [2023-12-02 19:42:39,930 INFO L226 Difference]: Without dead ends: 42387 [2023-12-02 19:42:39,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:42:39,962 INFO L413 NwaCegarLoop]: 9685 mSDtfsCounter, 9689 mSDsluCounter, 8999 mSDsCounter, 0 mSdLazyCounter, 1862 mSolverCounterSat, 4 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9689 SdHoareTripleChecker+Valid, 18684 SdHoareTripleChecker+Invalid, 1890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1862 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.2s IncrementalHoareTripleChecker+Time [2023-12-02 19:42:39,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9689 Valid, 18684 Invalid, 1890 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 1862 Invalid, 24 Unknown, 0 Unchecked, 73.2s Time] [2023-12-02 19:42:40,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42387 states. [2023-12-02 19:42:42,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42387 to 42378. [2023-12-02 19:42:42,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42378 states, 27393 states have (on average 1.3944073303398679) internal successors, (38197), 28877 states have internal predecessors, (38197), 12662 states have call successors, (12662), 2329 states have call predecessors, (12662), 2322 states have return successors, (13078), 12105 states have call predecessors, (13078), 12654 states have call successors, (13078) [2023-12-02 19:42:42,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42378 states to 42378 states and 63937 transitions. [2023-12-02 19:42:42,369 INFO L78 Accepts]: Start accepts. Automaton has 42378 states and 63937 transitions. Word has length 152 [2023-12-02 19:42:42,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:42:42,370 INFO L495 AbstractCegarLoop]: Abstraction has 42378 states and 63937 transitions. [2023-12-02 19:42:42,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:42:42,370 INFO L276 IsEmpty]: Start isEmpty. Operand 42378 states and 63937 transitions. [2023-12-02 19:42:42,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-02 19:42:42,376 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:42:42,376 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:42:42,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 19:42:42,377 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:42:42,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:42:42,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1361320410, now seen corresponding path program 1 times [2023-12-02 19:42:42,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:42:42,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693542819] [2023-12-02 19:42:42,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:42:42,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:42:42,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:42:43,224 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-12-02 19:42:43,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:42:43,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693542819] [2023-12-02 19:42:43,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693542819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:42:43,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:42:43,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:42:43,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119943188] [2023-12-02 19:42:43,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:42:43,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:42:43,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:42:43,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:42:43,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:42:43,226 INFO L87 Difference]: Start difference. First operand 42378 states and 63937 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:42:45,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:48,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:53,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:42:55,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:42:58,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:01,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:03,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:05,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:07,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:12,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:13,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:43:13,662 INFO L93 Difference]: Finished difference Result 42380 states and 63938 transitions. [2023-12-02 19:43:13,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:43:13,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 153 [2023-12-02 19:43:13,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:43:13,840 INFO L225 Difference]: With dead ends: 42380 [2023-12-02 19:43:13,840 INFO L226 Difference]: Without dead ends: 42327 [2023-12-02 19:43:13,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:43:13,871 INFO L413 NwaCegarLoop]: 9057 mSDtfsCounter, 9915 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9915 SdHoareTripleChecker+Valid, 9057 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:43:13,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9915 Valid, 9057 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 902 Invalid, 8 Unknown, 0 Unchecked, 28.4s Time] [2023-12-02 19:43:13,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42327 states. [2023-12-02 19:43:16,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42327 to 42327. [2023-12-02 19:43:16,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42327 states, 27363 states have (on average 1.3944742900997698) internal successors, (38157), 28844 states have internal predecessors, (38157), 12645 states have call successors, (12645), 2325 states have call predecessors, (12645), 2318 states have return successors, (13062), 12091 states have call predecessors, (13062), 12638 states have call successors, (13062) [2023-12-02 19:43:16,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42327 states to 42327 states and 63864 transitions. [2023-12-02 19:43:16,260 INFO L78 Accepts]: Start accepts. Automaton has 42327 states and 63864 transitions. Word has length 153 [2023-12-02 19:43:16,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:43:16,261 INFO L495 AbstractCegarLoop]: Abstraction has 42327 states and 63864 transitions. [2023-12-02 19:43:16,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:43:16,261 INFO L276 IsEmpty]: Start isEmpty. Operand 42327 states and 63864 transitions. [2023-12-02 19:43:16,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-12-02 19:43:16,273 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:43:16,273 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:43:16,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 19:43:16,273 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:43:16,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:43:16,274 INFO L85 PathProgramCache]: Analyzing trace with hash -863105066, now seen corresponding path program 1 times [2023-12-02 19:43:16,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:43:16,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669463609] [2023-12-02 19:43:16,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:43:16,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:43:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:43:16,956 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-12-02 19:43:16,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:43:16,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669463609] [2023-12-02 19:43:16,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669463609] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:43:16,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:43:16,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:43:16,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077249197] [2023-12-02 19:43:16,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:43:16,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:43:16,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:43:16,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:43:16,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:43:16,959 INFO L87 Difference]: Start difference. First operand 42327 states and 63864 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 19:43:19,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:22,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:26,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:43:28,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:32,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:35,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:37,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:40,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:42,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:48,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:50,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:52,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:54,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:43:57,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:44:00,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:03,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:06,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:08,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:12,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:14,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:18,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:23,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:25,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:26,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:44:26,433 INFO L93 Difference]: Finished difference Result 124684 states and 188073 transitions. [2023-12-02 19:44:26,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:44:26,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 192 [2023-12-02 19:44:26,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:44:26,805 INFO L225 Difference]: With dead ends: 124684 [2023-12-02 19:44:26,805 INFO L226 Difference]: Without dead ends: 82380 [2023-12-02 19:44:27,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:44:27,069 INFO L413 NwaCegarLoop]: 9070 mSDtfsCounter, 9115 mSDsluCounter, 8981 mSDsCounter, 0 mSdLazyCounter, 1841 mSolverCounterSat, 7 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9115 SdHoareTripleChecker+Valid, 18051 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1841 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:44:27,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9115 Valid, 18051 Invalid, 1868 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1841 Invalid, 20 Unknown, 0 Unchecked, 64.9s Time] [2023-12-02 19:44:27,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82380 states. [2023-12-02 19:44:31,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82380 to 82338. [2023-12-02 19:44:31,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82338 states, 53230 states have (on average 1.3959984970881083) internal successors, (74309), 56175 states have internal predecessors, (74309), 24517 states have call successors, (24517), 4602 states have call predecessors, (24517), 4590 states have return successors, (25372), 23408 states have call predecessors, (25372), 24510 states have call successors, (25372) [2023-12-02 19:44:32,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82338 states to 82338 states and 124198 transitions. [2023-12-02 19:44:32,120 INFO L78 Accepts]: Start accepts. Automaton has 82338 states and 124198 transitions. Word has length 192 [2023-12-02 19:44:32,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:44:32,120 INFO L495 AbstractCegarLoop]: Abstraction has 82338 states and 124198 transitions. [2023-12-02 19:44:32,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 19:44:32,121 INFO L276 IsEmpty]: Start isEmpty. Operand 82338 states and 124198 transitions. [2023-12-02 19:44:32,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-02 19:44:32,135 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:44:32,135 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:44:32,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 19:44:32,136 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:44:32,136 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:44:32,136 INFO L85 PathProgramCache]: Analyzing trace with hash -15046568, now seen corresponding path program 1 times [2023-12-02 19:44:32,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:44:32,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303557476] [2023-12-02 19:44:32,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:44:32,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:44:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:44:32,861 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2023-12-02 19:44:32,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:44:32,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303557476] [2023-12-02 19:44:32,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303557476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:44:32,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:44:32,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:44:32,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666406579] [2023-12-02 19:44:32,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:44:32,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:44:32,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:44:32,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:44:32,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:44:32,864 INFO L87 Difference]: Start difference. First operand 82338 states and 124198 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 19:44:35,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:38,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:42,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:44:44,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:48,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:50,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:52,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:44:54,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:02,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:04,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:09,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:45:11,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:45:16,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:18,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:20,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:22,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:28,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:30,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:33,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:35,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:37,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:40,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:46,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:49,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:45:50,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:45:50,630 INFO L93 Difference]: Finished difference Result 240778 states and 363392 transitions. [2023-12-02 19:45:50,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:45:50,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 194 [2023-12-02 19:45:50,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:45:51,548 INFO L225 Difference]: With dead ends: 240778 [2023-12-02 19:45:51,548 INFO L226 Difference]: Without dead ends: 158463 [2023-12-02 19:45:51,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:45:51,951 INFO L413 NwaCegarLoop]: 9055 mSDtfsCounter, 9852 mSDsluCounter, 8979 mSDsCounter, 0 mSdLazyCounter, 1848 mSolverCounterSat, 2 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9852 SdHoareTripleChecker+Valid, 18034 SdHoareTripleChecker+Invalid, 1873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1848 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:45:51,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9852 Valid, 18034 Invalid, 1873 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1848 Invalid, 23 Unknown, 0 Unchecked, 69.3s Time] [2023-12-02 19:45:52,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158463 states. [2023-12-02 19:46:01,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158463 to 158434. [2023-12-02 19:46:01,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158434 states, 102449 states have (on average 1.3966656580347294) internal successors, (143087), 108161 states have internal predecessors, (143087), 47194 states have call successors, (47194), 8812 states have call predecessors, (47194), 8790 states have return successors, (48911), 45036 states have call predecessors, (48911), 47187 states have call successors, (48911) [2023-12-02 19:46:03,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158434 states to 158434 states and 239192 transitions. [2023-12-02 19:46:03,377 INFO L78 Accepts]: Start accepts. Automaton has 158434 states and 239192 transitions. Word has length 194 [2023-12-02 19:46:03,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:46:03,377 INFO L495 AbstractCegarLoop]: Abstraction has 158434 states and 239192 transitions. [2023-12-02 19:46:03,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 19:46:03,377 INFO L276 IsEmpty]: Start isEmpty. Operand 158434 states and 239192 transitions. [2023-12-02 19:46:03,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-12-02 19:46:03,388 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:46:03,388 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:46:03,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 19:46:03,388 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:46:03,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:46:03,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1936869538, now seen corresponding path program 1 times [2023-12-02 19:46:03,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:46:03,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107739449] [2023-12-02 19:46:03,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:46:03,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:46:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:46:05,064 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-12-02 19:46:05,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:46:05,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107739449] [2023-12-02 19:46:05,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107739449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:46:05,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:46:05,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 19:46:05,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695943632] [2023-12-02 19:46:05,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:46:05,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 19:46:05,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:46:05,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 19:46:05,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 19:46:05,067 INFO L87 Difference]: Start difference. First operand 158434 states and 239192 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 19:46:07,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:09,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:11,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:14,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:16,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:18,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:25,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:27,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:29,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:37,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:39,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:41,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:43,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:45,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:47,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:50,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:52,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:54,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:56,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:46:57,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:01,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:47:03,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:47:05,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:47:12,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:14,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:16,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:29,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:31,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:33,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:39,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:47:39,219 INFO L93 Difference]: Finished difference Result 320525 states and 493360 transitions. [2023-12-02 19:47:39,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 19:47:39,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 193 [2023-12-02 19:47:39,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:47:40,242 INFO L225 Difference]: With dead ends: 320525 [2023-12-02 19:47:40,243 INFO L226 Difference]: Without dead ends: 162114 [2023-12-02 19:47:41,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:47:41,120 INFO L413 NwaCegarLoop]: 9048 mSDtfsCounter, 79 mSDsluCounter, 18014 mSDsCounter, 0 mSdLazyCounter, 2805 mSolverCounterSat, 5 mSolverCounterUnsat, 25 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 27062 SdHoareTripleChecker+Invalid, 2835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2805 IncrementalHoareTripleChecker+Invalid, 25 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:47:41,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 27062 Invalid, 2835 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 2805 Invalid, 25 Unknown, 0 Unchecked, 84.5s Time] [2023-12-02 19:47:41,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162114 states. [2023-12-02 19:47:50,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162114 to 162114. [2023-12-02 19:47:50,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162114 states, 104795 states have (on average 1.4000763395200153) internal successors, (146721), 111059 states have internal predecessors, (146721), 48482 states have call successors, (48482), 8858 states have call predecessors, (48482), 8836 states have return successors, (50167), 46094 states have call predecessors, (50167), 48475 states have call successors, (50167) [2023-12-02 19:47:52,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162114 states to 162114 states and 245370 transitions. [2023-12-02 19:47:52,144 INFO L78 Accepts]: Start accepts. Automaton has 162114 states and 245370 transitions. Word has length 193 [2023-12-02 19:47:52,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:47:52,145 INFO L495 AbstractCegarLoop]: Abstraction has 162114 states and 245370 transitions. [2023-12-02 19:47:52,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 19:47:52,145 INFO L276 IsEmpty]: Start isEmpty. Operand 162114 states and 245370 transitions. [2023-12-02 19:47:52,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-02 19:47:52,158 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:47:52,158 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2023-12-02 19:47:52,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 19:47:52,159 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:47:52,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:47:52,159 INFO L85 PathProgramCache]: Analyzing trace with hash 854480721, now seen corresponding path program 1 times [2023-12-02 19:47:52,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:47:52,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574675618] [2023-12-02 19:47:52,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:47:52,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:47:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:47:53,014 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2023-12-02 19:47:53,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:47:53,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574675618] [2023-12-02 19:47:53,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574675618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:47:53,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:47:53,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:47:53,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566109467] [2023-12-02 19:47:53,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:47:53,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:47:53,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:47:53,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:47:53,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:47:53,018 INFO L87 Difference]: Start difference. First operand 162114 states and 245370 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-02 19:47:55,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:47:57,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:01,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:04,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:06,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:08,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:10,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:14,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:48:16,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:18,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:22,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:31,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:33,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:35,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:37,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:41,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 19:48:45,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:47,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:51,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:53,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:48:58,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:49:01,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:49:09,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:49:12,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:49:16,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:49:16,518 INFO L93 Difference]: Finished difference Result 485860 states and 735370 transitions. [2023-12-02 19:49:16,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:49:16,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 232 [2023-12-02 19:49:16,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:49:18,722 INFO L225 Difference]: With dead ends: 485860 [2023-12-02 19:49:18,722 INFO L226 Difference]: Without dead ends: 323769 [2023-12-02 19:49:19,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:49:19,756 INFO L413 NwaCegarLoop]: 9057 mSDtfsCounter, 9921 mSDsluCounter, 9014 mSDsCounter, 0 mSdLazyCounter, 1815 mSolverCounterSat, 2 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9921 SdHoareTripleChecker+Valid, 18071 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1815 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:49:19,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9921 Valid, 18071 Invalid, 1836 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1815 Invalid, 19 Unknown, 0 Unchecked, 66.3s Time] [2023-12-02 19:49:20,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323769 states.