./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-43_2a-drivers--net--wireless--airo.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d6d487-f244-403b-9adc-ee6fab4d8d55/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d6d487-f244-403b-9adc-ee6fab4d8d55/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_59d6d487-f244-403b-9adc-ee6fab4d8d55/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d6d487-f244-403b-9adc-ee6fab4d8d55/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--airo.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d6d487-f244-403b-9adc-ee6fab4d8d55/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_59d6d487-f244-403b-9adc-ee6fab4d8d55/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 c7e89d42094d6275fe57d685fc9906fa8f1a6aba8bb368f4a4856c74848dd662 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:29:06,859 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:29:06,924 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d6d487-f244-403b-9adc-ee6fab4d8d55/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 15:29:06,929 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:29:06,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:29:06,956 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:29:06,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:29:06,957 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:29:06,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:29:06,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:29:06,959 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:29:06,959 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:29:06,960 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:29:06,960 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:29:06,961 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:29:06,961 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:29:06,962 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:29:06,962 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:29:06,963 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:29:06,963 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:29:06,964 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:29:06,968 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:29:06,969 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:29:06,969 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:29:06,969 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:29:06,970 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:29:06,970 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:29:06,970 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:29:06,971 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:29:06,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:29:06,972 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:29:06,980 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:29:06,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:29:06,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:29:06,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:29:06,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:29:06,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:29:06,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:29:06,982 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:29:06,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:29:06,983 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:29:06,983 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:29:06,983 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:29:06,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:29:06,984 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_59d6d487-f244-403b-9adc-ee6fab4d8d55/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d6d487-f244-403b-9adc-ee6fab4d8d55/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7e89d42094d6275fe57d685fc9906fa8f1a6aba8bb368f4a4856c74848dd662 [2023-12-02 15:29:07,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:29:07,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:29:07,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:29:07,221 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:29:07,222 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:29:07,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d6d487-f244-403b-9adc-ee6fab4d8d55/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--airo.ko-entry_point.cil.out.i [2023-12-02 15:29:09,999 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:29:10,568 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:29:10,569 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d6d487-f244-403b-9adc-ee6fab4d8d55/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--airo.ko-entry_point.cil.out.i [2023-12-02 15:29:10,621 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d6d487-f244-403b-9adc-ee6fab4d8d55/bin/utaipan-verify-nQ1chXbOIh/data/e8ad591bb/eb22bab3e7a84cfdb0fcff8ecea5e852/FLAGb6bc2385e [2023-12-02 15:29:10,635 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d6d487-f244-403b-9adc-ee6fab4d8d55/bin/utaipan-verify-nQ1chXbOIh/data/e8ad591bb/eb22bab3e7a84cfdb0fcff8ecea5e852 [2023-12-02 15:29:10,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:29:10,639 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:29:10,641 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:29:10,641 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:29:10,646 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:29:10,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:29:10" (1/1) ... [2023-12-02 15:29:10,648 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@460f9174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:29:10, skipping insertion in model container [2023-12-02 15:29:10,648 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:29:10" (1/1) ... [2023-12-02 15:29:10,968 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:29:12,120 WARN L638 FunctionHandler]: implicit declaration of function ldv_assume [2023-12-02 15:29:15,427 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_59d6d487-f244-403b-9adc-ee6fab4d8d55/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--airo.ko-entry_point.cil.out.i[523546,523559] [2023-12-02 15:29:15,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:29:15,541 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:29:15,675 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"); [6884] [2023-12-02 15:29:15,677 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)); [6891] [2023-12-02 15:29:15,678 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; btc %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [6898] [2023-12-02 15:29:15,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [6911] [2023-12-02 15:29:15,681 WARN L638 FunctionHandler]: implicit declaration of function ldv_assume [2023-12-02 15:29:15,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [7096] [2023-12-02 15:29:15,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7099] [2023-12-02 15:29:15,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7102] [2023-12-02 15:29:15,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7105] [2023-12-02 15:29:15,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [7139] [2023-12-02 15:29:15,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7142] [2023-12-02 15:29:15,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7145] [2023-12-02 15:29:15,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7148] [2023-12-02 15:29:15,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [7254] [2023-12-02 15:29:15,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [7262] [2023-12-02 15:29:15,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsb": "+S" (addr), "+c" (count): "d" (port)); [7269] [2023-12-02 15:29:15,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insb": "+D" (addr), "+c" (count): "d" (port)); [7276] [2023-12-02 15:29:15,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [7283] [2023-12-02 15:29:15,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [7291] [2023-12-02 15:29:15,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsw": "+S" (addr), "+c" (count): "d" (port)); [7298] [2023-12-02 15:29:15,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insw": "+D" (addr), "+c" (count): "d" (port)); [7305] [2023-12-02 15:29:15,840 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [10356-10357] [2023-12-02 15:29:15,840 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [10361-10362] [2023-12-02 15:29:15,841 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [10366-10367] [2023-12-02 15:29:15,841 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___5->state): : "memory", "cc"); [10371-10372] [2023-12-02 15:29:16,194 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_59d6d487-f244-403b-9adc-ee6fab4d8d55/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--airo.ko-entry_point.cil.out.i[523546,523559] [2023-12-02 15:29:16,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:29:16,416 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:29:16,416 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:29:16,416 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:29:16,417 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:29:16,417 WARN L675 CHandler]: The function ldv_calloc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:29:16,417 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:29:16,417 WARN L675 CHandler]: The function ldv_assume is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:29:16,417 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:29:16,423 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:29:16,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:29:16 WrapperNode [2023-12-02 15:29:16,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:29:16,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:29:16,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:29:16,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:29:16,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:29:16" (1/1) ... [2023-12-02 15:29:16,555 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:29:16" (1/1) ... [2023-12-02 15:29:16,852 INFO L138 Inliner]: procedures = 487, calls = 6614, calls flagged for inlining = 207, calls inlined = 176, statements flattened = 13040 [2023-12-02 15:29:16,853 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:29:16,853 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:29:16,853 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:29:16,853 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:29:16,862 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:29:16" (1/1) ... [2023-12-02 15:29:16,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:29:16" (1/1) ... [2023-12-02 15:29:16,925 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:29:16" (1/1) ... [2023-12-02 15:29:16,926 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:29:16" (1/1) ... [2023-12-02 15:29:17,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:29:16" (1/1) ... [2023-12-02 15:29:17,282 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:29:16" (1/1) ... [2023-12-02 15:29:17,342 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:29:16" (1/1) ... [2023-12-02 15:29:17,368 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:29:16" (1/1) ... [2023-12-02 15:29:17,500 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:29:17,501 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:29:17,501 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:29:17,502 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:29:17,503 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:29:16" (1/1) ... [2023-12-02 15:29:17,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:29:17,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d6d487-f244-403b-9adc-ee6fab4d8d55/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:29:17,535 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d6d487-f244-403b-9adc-ee6fab4d8d55/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:29:17,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59d6d487-f244-403b-9adc-ee6fab4d8d55/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:29:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_writerid [2023-12-02 15:29:17,590 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_writerid [2023-12-02 15:29:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure reset_card [2023-12-02 15:29:17,590 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_card [2023-12-02 15:29:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-12-02 15:29:17,590 INFO L130 BoogieDeclarations]: Found specification of procedure readStatusRid [2023-12-02 15:29:17,590 INFO L138 BoogieDeclarations]: Found implementation of procedure readStatusRid [2023-12-02 15:29:17,591 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2023-12-02 15:29:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2023-12-02 15:29:17,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 15:29:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 15:29:17,591 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-12-02 15:29:17,591 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-12-02 15:29:17,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-12-02 15:29:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-12-02 15:29:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 15:29:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 15:29:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_spy_update [2023-12-02 15:29:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_spy_update [2023-12-02 15:29:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure setup_card [2023-12-02 15:29:17,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_card [2023-12-02 15:29:17,592 INFO L130 BoogieDeclarations]: Found specification of procedure airo_networks_free [2023-12-02 15:29:17,593 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_networks_free [2023-12-02 15:29:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure airo_close [2023-12-02 15:29:17,593 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_close [2023-12-02 15:29:17,593 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2023-12-02 15:29:17,593 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2023-12-02 15:29:17,594 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-12-02 15:29:17,594 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-12-02 15:29:17,595 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_error [2023-12-02 15:29:17,595 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_error [2023-12-02 15:29:17,595 INFO L130 BoogieDeclarations]: Found specification of procedure sniffing_mode [2023-12-02 15:29:17,595 INFO L138 BoogieDeclarations]: Found implementation of procedure sniffing_mode [2023-12-02 15:29:17,596 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-12-02 15:29:17,596 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-12-02 15:29:17,596 INFO L130 BoogieDeclarations]: Found specification of procedure header_len [2023-12-02 15:29:17,596 INFO L138 BoogieDeclarations]: Found implementation of procedure header_len [2023-12-02 15:29:17,596 INFO L130 BoogieDeclarations]: Found specification of procedure ssleep [2023-12-02 15:29:17,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ssleep [2023-12-02 15:29:17,596 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2023-12-02 15:29:17,596 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2023-12-02 15:29:17,597 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-12-02 15:29:17,597 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2023-12-02 15:29:17,597 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2023-12-02 15:29:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure readSsidRid [2023-12-02 15:29:17,598 INFO L138 BoogieDeclarations]: Found implementation of procedure readSsidRid [2023-12-02 15:29:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 15:29:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_final [2023-12-02 15:29:17,598 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_final [2023-12-02 15:29:17,598 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-12-02 15:29:17,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-12-02 15:29:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2023-12-02 15:29:17,599 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2023-12-02 15:29:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-12-02 15:29:17,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-12-02 15:29:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure down_trylock [2023-12-02 15:29:17,600 INFO L138 BoogieDeclarations]: Found implementation of procedure down_trylock [2023-12-02 15:29:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-12-02 15:29:17,601 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-12-02 15:29:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-12-02 15:29:17,601 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-12-02 15:29:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure enable_MAC [2023-12-02 15:29:17,601 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_MAC [2023-12-02 15:29:17,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-12-02 15:29:17,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-12-02 15:29:17,602 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-12-02 15:29:17,602 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-12-02 15:29:17,602 INFO L130 BoogieDeclarations]: Found specification of procedure OUT4500 [2023-12-02 15:29:17,602 INFO L138 BoogieDeclarations]: Found implementation of procedure OUT4500 [2023-12-02 15:29:17,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:29:17,602 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-12-02 15:29:17,603 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-12-02 15:29:17,603 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_send_packet [2023-12-02 15:29:17,603 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_send_packet [2023-12-02 15:29:17,603 INFO L130 BoogieDeclarations]: Found specification of procedure PDE_DATA [2023-12-02 15:29:17,603 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE_DATA [2023-12-02 15:29:17,603 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-12-02 15:29:17,604 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-12-02 15:29:17,604 INFO L130 BoogieDeclarations]: Found specification of procedure airo_ioctl [2023-12-02 15:29:17,604 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_ioctl [2023-12-02 15:29:17,604 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-12-02 15:29:17,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-12-02 15:29:17,605 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-12-02 15:29:17,605 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-12-02 15:29:17,605 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-12-02 15:29:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-12-02 15:29:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-12-02 15:29:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-12-02 15:29:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure airo_end_xmit11 [2023-12-02 15:29:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_end_xmit11 [2023-12-02 15:29:17,606 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-12-02 15:29:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-12-02 15:29:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure airo_change_mtu [2023-12-02 15:29:17,607 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_change_mtu [2023-12-02 15:29:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 15:29:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure disable_interrupts [2023-12-02 15:29:17,607 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_interrupts [2023-12-02 15:29:17,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_15 [2023-12-02 15:29:17,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_15 [2023-12-02 15:29:17,608 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-12-02 15:29:17,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-12-02 15:29:17,608 INFO L130 BoogieDeclarations]: Found specification of procedure down_interruptible [2023-12-02 15:29:17,608 INFO L138 BoogieDeclarations]: Found implementation of procedure down_interruptible [2023-12-02 15:29:17,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 15:29:17,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-12-02 15:29:17,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:29:17,610 INFO L130 BoogieDeclarations]: Found specification of procedure airo_pci_remove [2023-12-02 15:29:17,610 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_pci_remove [2023-12-02 15:29:17,610 INFO L130 BoogieDeclarations]: Found specification of procedure aux_setup [2023-12-02 15:29:17,610 INFO L138 BoogieDeclarations]: Found implementation of procedure aux_setup [2023-12-02 15:29:17,610 INFO L130 BoogieDeclarations]: Found specification of procedure writeConfigRid [2023-12-02 15:29:17,610 INFO L138 BoogieDeclarations]: Found implementation of procedure writeConfigRid [2023-12-02 15:29:17,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 15:29:17,612 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 15:29:17,614 INFO L130 BoogieDeclarations]: Found specification of procedure readCapabilityRid [2023-12-02 15:29:17,615 INFO L138 BoogieDeclarations]: Found implementation of procedure readCapabilityRid [2023-12-02 15:29:17,615 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2023-12-02 15:29:17,615 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2023-12-02 15:29:17,616 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-12-02 15:29:17,616 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-12-02 15:29:17,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-12-02 15:29:17,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-12-02 15:29:17,617 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-12-02 15:29:17,623 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-12-02 15:29:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-12-02 15:29:17,623 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-12-02 15:29:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-12-02 15:29:17,623 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-12-02 15:29:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-12-02 15:29:17,624 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-12-02 15:29:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-12-02 15:29:17,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-12-02 15:29:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure writeWepKeyRid [2023-12-02 15:29:17,624 INFO L138 BoogieDeclarations]: Found implementation of procedure writeWepKeyRid [2023-12-02 15:29:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create_data [2023-12-02 15:29:17,624 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create_data [2023-12-02 15:29:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 15:29:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2023-12-02 15:29:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure del_airo_dev [2023-12-02 15:29:17,625 INFO L138 BoogieDeclarations]: Found implementation of procedure del_airo_dev [2023-12-02 15:29:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:29:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-12-02 15:29:17,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-12-02 15:29:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 15:29:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure writeSsidRid [2023-12-02 15:29:17,625 INFO L138 BoogieDeclarations]: Found implementation of procedure writeSsidRid [2023-12-02 15:29:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-12-02 15:29:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure MoveWindow [2023-12-02 15:29:17,626 INFO L138 BoogieDeclarations]: Found implementation of procedure MoveWindow [2023-12-02 15:29:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_15 [2023-12-02 15:29:17,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_15 [2023-12-02 15:29:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2023-12-02 15:29:17,626 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2023-12-02 15:29:17,626 INFO L130 BoogieDeclarations]: Found specification of procedure crypto_cipher_tfm [2023-12-02 15:29:17,626 INFO L138 BoogieDeclarations]: Found implementation of procedure crypto_cipher_tfm [2023-12-02 15:29:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-12-02 15:29:17,627 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-12-02 15:29:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure proc_close [2023-12-02 15:29:17,627 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_close [2023-12-02 15:29:17,627 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_multicast_list [2023-12-02 15:29:17,627 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_multicast_list [2023-12-02 15:29:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-12-02 15:29:17,628 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-12-02 15:29:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure set_wep_key [2023-12-02 15:29:17,628 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wep_key [2023-12-02 15:29:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure writeAPListRid [2023-12-02 15:29:17,628 INFO L138 BoogieDeclarations]: Found implementation of procedure writeAPListRid [2023-12-02 15:29:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-12-02 15:29:17,628 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-12-02 15:29:17,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:29:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:29:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure proc_stats_rid_open [2023-12-02 15:29:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_stats_rid_open [2023-12-02 15:29:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-12-02 15:29:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-12-02 15:29:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2023-12-02 15:29:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2023-12-02 15:29:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-12-02 15:29:17,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-12-02 15:29:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure insb [2023-12-02 15:29:17,630 INFO L138 BoogieDeclarations]: Found implementation of procedure insb [2023-12-02 15:29:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-12-02 15:29:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-12-02 15:29:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-12-02 15:29:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-12-02 15:29:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure IN4500 [2023-12-02 15:29:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure IN4500 [2023-12-02 15:29:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2023-12-02 15:29:17,631 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2023-12-02 15:29:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 15:29:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 15:29:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 15:29:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 15:29:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2023-12-02 15:29:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2023-12-02 15:29:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-12-02 15:29:17,632 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-12-02 15:29:17,632 INFO L130 BoogieDeclarations]: Found specification of procedure bap_write [2023-12-02 15:29:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_write [2023-12-02 15:29:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure _init_airo_card [2023-12-02 15:29:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure _init_airo_card [2023-12-02 15:29:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure waitbusy [2023-12-02 15:29:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure waitbusy [2023-12-02 15:29:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure decapsulate [2023-12-02 15:29:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure decapsulate [2023-12-02 15:29:17,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-12-02 15:29:17,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-12-02 15:29:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir_mode [2023-12-02 15:29:17,634 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir_mode [2023-12-02 15:29:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2023-12-02 15:29:17,634 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2023-12-02 15:29:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 15:29:17,634 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 15:29:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 15:29:17,634 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 15:29:17,634 INFO L130 BoogieDeclarations]: Found specification of procedure readBSSListRid [2023-12-02 15:29:17,635 INFO L138 BoogieDeclarations]: Found implementation of procedure readBSSListRid [2023-12-02 15:29:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-12-02 15:29:17,635 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-12-02 15:29:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2023-12-02 15:29:17,635 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2023-12-02 15:29:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2023-12-02 15:29:17,635 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2023-12-02 15:29:17,635 INFO L130 BoogieDeclarations]: Found specification of procedure set_wep_tx_idx [2023-12-02 15:29:17,635 INFO L138 BoogieDeclarations]: Found implementation of procedure set_wep_tx_idx [2023-12-02 15:29:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-12-02 15:29:17,636 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-12-02 15:29:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:29:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-12-02 15:29:17,636 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-12-02 15:29:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure proc_write [2023-12-02 15:29:17,636 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_write [2023-12-02 15:29:17,636 INFO L130 BoogieDeclarations]: Found specification of procedure up [2023-12-02 15:29:17,636 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2023-12-02 15:29:17,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 15:29:17,637 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2023-12-02 15:29:17,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2023-12-02 15:29:17,637 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_subtree [2023-12-02 15:29:17,637 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_subtree [2023-12-02 15:29:17,637 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_allocate [2023-12-02 15:29:17,638 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_allocate [2023-12-02 15:29:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2023-12-02 15:29:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2023-12-02 15:29:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure proc_read [2023-12-02 15:29:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_read [2023-12-02 15:29:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 15:29:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 15:29:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 15:29:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_accessrid [2023-12-02 15:29:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_accessrid [2023-12-02 15:29:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure airo_send_event [2023-12-02 15:29:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_send_event [2023-12-02 15:29:17,643 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-12-02 15:29:17,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-12-02 15:29:17,643 INFO L130 BoogieDeclarations]: Found specification of procedure airo_pci_resume [2023-12-02 15:29:17,643 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_pci_resume [2023-12-02 15:29:17,643 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-12-02 15:29:17,643 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-12-02 15:29:17,643 INFO L130 BoogieDeclarations]: Found specification of procedure hex_to_bin [2023-12-02 15:29:17,643 INFO L138 BoogieDeclarations]: Found implementation of procedure hex_to_bin [2023-12-02 15:29:17,644 INFO L130 BoogieDeclarations]: Found specification of procedure try_auto_wep [2023-12-02 15:29:17,644 INFO L138 BoogieDeclarations]: Found implementation of procedure try_auto_wep [2023-12-02 15:29:17,644 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-12-02 15:29:17,644 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-12-02 15:29:17,644 INFO L130 BoogieDeclarations]: Found specification of procedure bap_read [2023-12-02 15:29:17,644 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_read [2023-12-02 15:29:17,644 INFO L130 BoogieDeclarations]: Found specification of procedure issuecommand [2023-12-02 15:29:17,644 INFO L138 BoogieDeclarations]: Found implementation of procedure issuecommand [2023-12-02 15:29:17,644 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-12-02 15:29:17,645 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-12-02 15:29:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure bap_setup [2023-12-02 15:29:17,645 INFO L138 BoogieDeclarations]: Found implementation of procedure bap_setup [2023-12-02 15:29:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure readAPListRid [2023-12-02 15:29:17,645 INFO L138 BoogieDeclarations]: Found implementation of procedure readAPListRid [2023-12-02 15:29:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-12-02 15:29:17,645 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-12-02 15:29:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure airo_read_stats [2023-12-02 15:29:17,645 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_read_stats [2023-12-02 15:29:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure airo_end_xmit [2023-12-02 15:29:17,646 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_end_xmit [2023-12-02 15:29:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure readConfigRid [2023-12-02 15:29:17,646 INFO L138 BoogieDeclarations]: Found implementation of procedure readConfigRid [2023-12-02 15:29:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-12-02 15:29:17,646 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-12-02 15:29:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-12-02 15:29:17,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-12-02 15:29:17,646 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 15:29:17,647 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 15:29:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure airo_open [2023-12-02 15:29:17,647 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_open [2023-12-02 15:29:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:29:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure stop_airo_card [2023-12-02 15:29:17,647 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_airo_card [2023-12-02 15:29:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_update [2023-12-02 15:29:17,647 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_update [2023-12-02 15:29:17,647 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-12-02 15:29:17,648 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-12-02 15:29:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-12-02 15:29:17,648 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-12-02 15:29:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 15:29:17,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 15:29:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure readWepKeyRid [2023-12-02 15:29:17,648 INFO L138 BoogieDeclarations]: Found implementation of procedure readWepKeyRid [2023-12-02 15:29:17,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-12-02 15:29:17,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-12-02 15:29:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_unmap_card [2023-12-02 15:29:17,649 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_unmap_card [2023-12-02 15:29:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-12-02 15:29:17,649 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-12-02 15:29:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-12-02 15:29:17,649 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-12-02 15:29:17,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-12-02 15:29:17,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-12-02 15:29:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure proc_set_user [2023-12-02 15:29:17,650 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_set_user [2023-12-02 15:29:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-12-02 15:29:17,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-12-02 15:29:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2023-12-02 15:29:17,650 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2023-12-02 15:29:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_11 [2023-12-02 15:29:17,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_11 [2023-12-02 15:29:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure airo_get_stats [2023-12-02 15:29:17,651 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_get_stats [2023-12-02 15:29:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure PC4500_readrid [2023-12-02 15:29:17,651 INFO L138 BoogieDeclarations]: Found implementation of procedure PC4500_readrid [2023-12-02 15:29:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-12-02 15:29:17,651 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-12-02 15:29:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure mpi_init_descriptors [2023-12-02 15:29:17,651 INFO L138 BoogieDeclarations]: Found implementation of procedure mpi_init_descriptors [2023-12-02 15:29:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure get_dec_u16 [2023-12-02 15:29:17,652 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dec_u16 [2023-12-02 15:29:17,652 INFO L130 BoogieDeclarations]: Found specification of procedure enable_interrupts [2023-12-02 15:29:17,652 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_interrupts [2023-12-02 15:29:17,652 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-12-02 15:29:17,652 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-12-02 15:29:17,652 INFO L130 BoogieDeclarations]: Found specification of procedure airo_read_wireless_stats [2023-12-02 15:29:17,652 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_read_wireless_stats [2023-12-02 15:29:17,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:29:17,652 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-12-02 15:29:17,653 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-12-02 15:29:17,653 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-12-02 15:29:17,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2023-12-02 15:29:17,653 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_mac_address [2023-12-02 15:29:17,653 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_mac_address [2023-12-02 15:29:17,653 INFO L130 BoogieDeclarations]: Found specification of procedure emmh32_init [2023-12-02 15:29:17,653 INFO L138 BoogieDeclarations]: Found implementation of procedure emmh32_init [2023-12-02 15:29:17,653 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-12-02 15:29:17,653 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-12-02 15:29:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure disable_MAC [2023-12-02 15:29:17,654 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_MAC [2023-12-02 15:29:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure readStatsRid [2023-12-02 15:29:17,654 INFO L138 BoogieDeclarations]: Found implementation of procedure readStatsRid [2023-12-02 15:29:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure encapsulate [2023-12-02 15:29:17,654 INFO L138 BoogieDeclarations]: Found implementation of procedure encapsulate [2023-12-02 15:29:17,654 INFO L130 BoogieDeclarations]: Found specification of procedure airo_set_promisc [2023-12-02 15:29:17,654 INFO L138 BoogieDeclarations]: Found implementation of procedure airo_set_promisc [2023-12-02 15:29:18,871 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:29:18,876 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:29:19,312 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 15:29:50,896 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:29:54,171 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:29:54,172 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 15:29:54,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:29:54 BoogieIcfgContainer [2023-12-02 15:29:54,175 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:29:54,177 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:29:54,177 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:29:54,179 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:29:54,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:29:10" (1/3) ... [2023-12-02 15:29:54,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165f17bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:29:54, skipping insertion in model container [2023-12-02 15:29:54,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:29:16" (2/3) ... [2023-12-02 15:29:54,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165f17bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:29:54, skipping insertion in model container [2023-12-02 15:29:54,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:29:54" (3/3) ... [2023-12-02 15:29:54,182 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--airo.ko-entry_point.cil.out.i [2023-12-02 15:29:54,198 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:29:54,198 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:29:54,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:29:54,299 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;@9e3a79c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:29:54,300 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:29:54,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 3484 states, 2148 states have (on average 1.371973929236499) internal successors, (2947), 2259 states have internal predecessors, (2947), 1168 states have call successors, (1168), 167 states have call predecessors, (1168), 166 states have return successors, (1150), 1115 states have call predecessors, (1150), 1150 states have call successors, (1150) [2023-12-02 15:29:54,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 819 [2023-12-02 15:29:54,376 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:29:54,377 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:29:54,378 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:29:54,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:29:54,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1046607246, now seen corresponding path program 1 times [2023-12-02 15:29:54,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:29:54,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651113239] [2023-12-02 15:29:54,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:29:54,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:29:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:29:57,695 INFO L134 CoverageAnalysis]: Checked inductivity of 11820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11820 trivial. 0 not checked. [2023-12-02 15:29:57,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:29:57,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651113239] [2023-12-02 15:29:57,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651113239] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:29:57,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:29:57,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:29:57,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849558321] [2023-12-02 15:29:57,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:29:57,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:29:57,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:29:57,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:29:57,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:29:57,745 INFO L87 Difference]: Start difference. First operand has 3484 states, 2148 states have (on average 1.371973929236499) internal successors, (2947), 2259 states have internal predecessors, (2947), 1168 states have call successors, (1168), 167 states have call predecessors, (1168), 166 states have return successors, (1150), 1115 states have call predecessors, (1150), 1150 states have call successors, (1150) Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2023-12-02 15:29:59,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:01,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:03,464 WARN L539 Checker$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 15:30:05,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:09,115 WARN L539 Checker$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 15:30:10,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:12,684 WARN L539 Checker$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 15:30:15,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:17,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:19,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:21,584 WARN L539 Checker$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 15:30:24,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:26,949 WARN L539 Checker$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 15:30:28,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:30:28,488 INFO L93 Difference]: Finished difference Result 10079 states and 15373 transitions. [2023-12-02 15:30:28,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:30:28,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 818 [2023-12-02 15:30:28,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:30:28,568 INFO L225 Difference]: With dead ends: 10079 [2023-12-02 15:30:28,568 INFO L226 Difference]: Without dead ends: 6687 [2023-12-02 15:30:28,610 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 15:30:28,613 INFO L413 NwaCegarLoop]: 4859 mSDtfsCounter, 5156 mSDsluCounter, 4614 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 4 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5156 SdHoareTripleChecker+Valid, 9473 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:30:28,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5156 Valid, 9473 Invalid, 825 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 811 Invalid, 10 Unknown, 0 Unchecked, 30.2s Time] [2023-12-02 15:30:28,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6687 states. [2023-12-02 15:30:28,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6687 to 6683. [2023-12-02 15:30:29,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6683 states, 4159 states have (on average 1.3683577783120942) internal successors, (5691), 4342 states have internal predecessors, (5691), 2196 states have call successors, (2196), 328 states have call predecessors, (2196), 327 states have return successors, (2195), 2124 states have call predecessors, (2195), 2195 states have call successors, (2195) [2023-12-02 15:30:29,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6683 states to 6683 states and 10082 transitions. [2023-12-02 15:30:29,081 INFO L78 Accepts]: Start accepts. Automaton has 6683 states and 10082 transitions. Word has length 818 [2023-12-02 15:30:29,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:30:29,085 INFO L495 AbstractCegarLoop]: Abstraction has 6683 states and 10082 transitions. [2023-12-02 15:30:29,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2023-12-02 15:30:29,085 INFO L276 IsEmpty]: Start isEmpty. Operand 6683 states and 10082 transitions. [2023-12-02 15:30:29,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2023-12-02 15:30:29,124 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:30:29,125 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:30:29,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:30:29,126 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:30:29,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:30:29,127 INFO L85 PathProgramCache]: Analyzing trace with hash -142615781, now seen corresponding path program 1 times [2023-12-02 15:30:29,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:30:29,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756671239] [2023-12-02 15:30:29,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:30:29,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:30:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:30:31,234 INFO L134 CoverageAnalysis]: Checked inductivity of 11820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11820 trivial. 0 not checked. [2023-12-02 15:30:31,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:30:31,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756671239] [2023-12-02 15:30:31,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756671239] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:30:31,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:30:31,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:30:31,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073100892] [2023-12-02 15:30:31,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:30:31,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:30:31,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:30:31,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:30:31,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:30:31,242 INFO L87 Difference]: Start difference. First operand 6683 states and 10082 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2023-12-02 15:30:33,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:35,912 WARN L539 Checker$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 15:30:38,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:41,674 WARN L539 Checker$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 15:30:45,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:47,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:50,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:52,009 WARN L539 Checker$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 15:30:55,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:30:57,515 WARN L539 Checker$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 15:30:59,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:30:59,302 INFO L93 Difference]: Finished difference Result 19587 states and 29552 transitions. [2023-12-02 15:30:59,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:30:59,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 823 [2023-12-02 15:30:59,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:30:59,439 INFO L225 Difference]: With dead ends: 19587 [2023-12-02 15:30:59,439 INFO L226 Difference]: Without dead ends: 13059 [2023-12-02 15:30:59,502 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 15:30:59,503 INFO L413 NwaCegarLoop]: 4883 mSDtfsCounter, 5074 mSDsluCounter, 4564 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5074 SdHoareTripleChecker+Valid, 9447 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:30:59,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5074 Valid, 9447 Invalid, 818 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 806 Invalid, 10 Unknown, 0 Unchecked, 27.5s Time] [2023-12-02 15:30:59,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13059 states. [2023-12-02 15:31:00,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13059 to 13055. [2023-12-02 15:31:00,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13055 states, 8134 states have (on average 1.3712810425374968) internal successors, (11154), 8501 states have internal predecessors, (11154), 4271 states have call successors, (4271), 650 states have call predecessors, (4271), 649 states have return successors, (4270), 4127 states have call predecessors, (4270), 4270 states have call successors, (4270) [2023-12-02 15:31:00,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13055 states to 13055 states and 19695 transitions. [2023-12-02 15:31:00,401 INFO L78 Accepts]: Start accepts. Automaton has 13055 states and 19695 transitions. Word has length 823 [2023-12-02 15:31:00,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:31:00,402 INFO L495 AbstractCegarLoop]: Abstraction has 13055 states and 19695 transitions. [2023-12-02 15:31:00,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2023-12-02 15:31:00,403 INFO L276 IsEmpty]: Start isEmpty. Operand 13055 states and 19695 transitions. [2023-12-02 15:31:00,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2023-12-02 15:31:00,416 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:31:00,416 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:00,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:31:00,417 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:31:00,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:31:00,417 INFO L85 PathProgramCache]: Analyzing trace with hash 538846016, now seen corresponding path program 1 times [2023-12-02 15:31:00,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:31:00,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132363304] [2023-12-02 15:31:00,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:31:00,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:31:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:31:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 11820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11820 trivial. 0 not checked. [2023-12-02 15:31:01,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:31:01,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132363304] [2023-12-02 15:31:01,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132363304] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:31:01,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:31:01,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:31:01,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392628825] [2023-12-02 15:31:01,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:31:01,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:31:01,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:31:01,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:31:01,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:31:01,951 INFO L87 Difference]: Start difference. First operand 13055 states and 19695 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2023-12-02 15:31:04,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:06,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:09,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:11,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:14,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:16,457 WARN L539 Checker$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 15:31:18,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:21,956 WARN L539 Checker$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 15:31:25,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:27,616 WARN L539 Checker$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 15:31:30,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:31:30,819 INFO L93 Difference]: Finished difference Result 37907 states and 57205 transitions. [2023-12-02 15:31:30,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:31:30,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) Word has length 822 [2023-12-02 15:31:30,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:31:30,971 INFO L225 Difference]: With dead ends: 37907 [2023-12-02 15:31:30,971 INFO L226 Difference]: Without dead ends: 25007 [2023-12-02 15:31:31,036 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 15:31:31,038 INFO L413 NwaCegarLoop]: 4995 mSDtfsCounter, 4834 mSDsluCounter, 4544 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4834 SdHoareTripleChecker+Valid, 9539 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:31:31,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4834 Valid, 9539 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 836 Invalid, 10 Unknown, 0 Unchecked, 28.2s Time] [2023-12-02 15:31:31,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25007 states. [2023-12-02 15:31:32,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25007 to 25000. [2023-12-02 15:31:32,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25000 states, 15629 states have (on average 1.3749440143323308) internal successors, (21489), 16355 states have internal predecessors, (21489), 8121 states have call successors, (8121), 1250 states have call predecessors, (8121), 1249 states have return successors, (8120), 7834 states have call predecessors, (8120), 8120 states have call successors, (8120) [2023-12-02 15:31:32,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25000 states to 25000 states and 37730 transitions. [2023-12-02 15:31:32,433 INFO L78 Accepts]: Start accepts. Automaton has 25000 states and 37730 transitions. Word has length 822 [2023-12-02 15:31:32,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:31:32,434 INFO L495 AbstractCegarLoop]: Abstraction has 25000 states and 37730 transitions. [2023-12-02 15:31:32,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2023-12-02 15:31:32,434 INFO L276 IsEmpty]: Start isEmpty. Operand 25000 states and 37730 transitions. [2023-12-02 15:31:32,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 825 [2023-12-02 15:31:32,447 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:31:32,447 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:32,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 15:31:32,448 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:31:32,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:31:32,448 INFO L85 PathProgramCache]: Analyzing trace with hash -411962395, now seen corresponding path program 1 times [2023-12-02 15:31:32,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:31:32,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588466616] [2023-12-02 15:31:32,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:31:32,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:31:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:31:34,213 INFO L134 CoverageAnalysis]: Checked inductivity of 11820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11820 trivial. 0 not checked. [2023-12-02 15:31:34,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:31:34,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588466616] [2023-12-02 15:31:34,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588466616] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:31:34,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:31:34,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:31:34,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733853969] [2023-12-02 15:31:34,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:31:34,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:31:34,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:31:34,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:31:34,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:31:34,217 INFO L87 Difference]: Start difference. First operand 25000 states and 37730 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2023-12-02 15:31:36,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:38,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:41,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:44,354 WARN L539 Checker$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 15:31:48,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:50,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:53,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:31:55,581 WARN L539 Checker$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 15:31:58,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:32:00,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:32:02,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:32:02,403 INFO L93 Difference]: Finished difference Result 74244 states and 112016 transitions. [2023-12-02 15:32:02,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:32:02,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 824 [2023-12-02 15:32:02,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:32:02,708 INFO L225 Difference]: With dead ends: 74244 [2023-12-02 15:32:02,708 INFO L226 Difference]: Without dead ends: 49399 [2023-12-02 15:32:02,941 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 15:32:02,943 INFO L413 NwaCegarLoop]: 4991 mSDtfsCounter, 5096 mSDsluCounter, 4564 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5096 SdHoareTripleChecker+Valid, 9555 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.7s IncrementalHoareTripleChecker+Time [2023-12-02 15:32:02,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5096 Valid, 9555 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 814 Invalid, 9 Unknown, 0 Unchecked, 26.7s Time] [2023-12-02 15:32:02,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49399 states. [2023-12-02 15:32:04,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49399 to 49392. [2023-12-02 15:32:05,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49392 states, 30869 states have (on average 1.3752632090446726) internal successors, (42453), 32323 states have internal predecessors, (42453), 16025 states have call successors, (16025), 2498 states have call predecessors, (16025), 2497 states have return successors, (16024), 15450 states have call predecessors, (16024), 16024 states have call successors, (16024) [2023-12-02 15:32:05,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49392 states to 49392 states and 74502 transitions. [2023-12-02 15:32:05,401 INFO L78 Accepts]: Start accepts. Automaton has 49392 states and 74502 transitions. Word has length 824 [2023-12-02 15:32:05,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:32:05,402 INFO L495 AbstractCegarLoop]: Abstraction has 49392 states and 74502 transitions. [2023-12-02 15:32:05,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2023-12-02 15:32:05,402 INFO L276 IsEmpty]: Start isEmpty. Operand 49392 states and 74502 transitions. [2023-12-02 15:32:05,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 827 [2023-12-02 15:32:05,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:32:05,415 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:05,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 15:32:05,416 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:32:05,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:32:05,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1400843047, now seen corresponding path program 1 times [2023-12-02 15:32:05,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:32:05,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889821092] [2023-12-02 15:32:05,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:32:05,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:32:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:32:07,012 INFO L134 CoverageAnalysis]: Checked inductivity of 11820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11820 trivial. 0 not checked. [2023-12-02 15:32:07,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:32:07,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889821092] [2023-12-02 15:32:07,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889821092] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:32:07,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:32:07,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:32:07,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994572626] [2023-12-02 15:32:07,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:32:07,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:32:07,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:32:07,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:32:07,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:32:07,015 INFO L87 Difference]: Start difference. First operand 49392 states and 74502 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2023-12-02 15:32:09,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:32:11,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:32:14,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:32:17,237 WARN L539 Checker$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 15:32:21,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:32:23,194 WARN L539 Checker$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 15:32:26,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:32:28,680 WARN L539 Checker$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 15:32:32,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:32:34,508 WARN L539 Checker$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 15:32:37,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:32:37,351 INFO L93 Difference]: Finished difference Result 147472 states and 222400 transitions. [2023-12-02 15:32:37,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:32:37,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 826 [2023-12-02 15:32:37,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:32:38,071 INFO L225 Difference]: With dead ends: 147472 [2023-12-02 15:32:38,071 INFO L226 Difference]: Without dead ends: 98235 [2023-12-02 15:32:38,313 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 15:32:38,313 INFO L413 NwaCegarLoop]: 5073 mSDtfsCounter, 5138 mSDsluCounter, 4570 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5138 SdHoareTripleChecker+Valid, 9643 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:32:38,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5138 Valid, 9643 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 809 Invalid, 10 Unknown, 0 Unchecked, 27.1s Time] [2023-12-02 15:32:38,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98235 states. [2023-12-02 15:32:42,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98235 to 98216. [2023-12-02 15:32:42,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98216 states, 61373 states have (on average 1.375148681016082) internal successors, (84397), 64283 states have internal predecessors, (84397), 31849 states have call successors, (31849), 4994 states have call predecessors, (31849), 4993 states have return successors, (31848), 30698 states have call predecessors, (31848), 31848 states have call successors, (31848) [2023-12-02 15:32:43,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98216 states to 98216 states and 148094 transitions. [2023-12-02 15:32:43,280 INFO L78 Accepts]: Start accepts. Automaton has 98216 states and 148094 transitions. Word has length 826 [2023-12-02 15:32:43,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:32:43,281 INFO L495 AbstractCegarLoop]: Abstraction has 98216 states and 148094 transitions. [2023-12-02 15:32:43,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2023-12-02 15:32:43,281 INFO L276 IsEmpty]: Start isEmpty. Operand 98216 states and 148094 transitions. [2023-12-02 15:32:43,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 833 [2023-12-02 15:32:43,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:32:43,290 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:32:43,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 15:32:43,290 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:32:43,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:32:43,291 INFO L85 PathProgramCache]: Analyzing trace with hash 398824057, now seen corresponding path program 1 times [2023-12-02 15:32:43,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:32:43,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530121981] [2023-12-02 15:32:43,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:32:43,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:32:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:32:45,041 INFO L134 CoverageAnalysis]: Checked inductivity of 11820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11820 trivial. 0 not checked. [2023-12-02 15:32:45,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:32:45,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530121981] [2023-12-02 15:32:45,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530121981] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:32:45,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:32:45,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:32:45,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839872190] [2023-12-02 15:32:45,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:32:45,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:32:45,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:32:45,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:32:45,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:32:45,045 INFO L87 Difference]: Start difference. First operand 98216 states and 148094 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2023-12-02 15:32:47,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:32:49,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:32:52,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:32:55,097 WARN L539 Checker$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 15:32:59,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:33:01,351 WARN L539 Checker$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 15:33:05,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:33:07,524 WARN L539 Checker$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 15:33:11,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:33:13,860 WARN L539 Checker$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 15:33:18,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:33:18,584 INFO L93 Difference]: Finished difference Result 292264 states and 440504 transitions. [2023-12-02 15:33:18,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:33:18,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 832 [2023-12-02 15:33:18,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:33:19,699 INFO L225 Difference]: With dead ends: 292264 [2023-12-02 15:33:19,699 INFO L226 Difference]: Without dead ends: 194203 [2023-12-02 15:33:20,108 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 15:33:20,109 INFO L413 NwaCegarLoop]: 5105 mSDtfsCounter, 5062 mSDsluCounter, 4563 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 2 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5062 SdHoareTripleChecker+Valid, 9668 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:33:20,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5062 Valid, 9668 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 817 Invalid, 10 Unknown, 0 Unchecked, 27.0s Time] [2023-12-02 15:33:20,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194203 states. [2023-12-02 15:33:28,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194203 to 194200. [2023-12-02 15:33:28,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194200 states, 121325 states have (on average 1.3750587265608902) internal successors, (166829), 127115 states have internal predecessors, (166829), 62889 states have call successors, (62889), 9986 states have call predecessors, (62889), 9985 states have return successors, (62888), 60618 states have call predecessors, (62888), 62888 states have call successors, (62888) [2023-12-02 15:33:30,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194200 states to 194200 states and 292606 transitions. [2023-12-02 15:33:30,168 INFO L78 Accepts]: Start accepts. Automaton has 194200 states and 292606 transitions. Word has length 832 [2023-12-02 15:33:30,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:33:30,168 INFO L495 AbstractCegarLoop]: Abstraction has 194200 states and 292606 transitions. [2023-12-02 15:33:30,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2023-12-02 15:33:30,169 INFO L276 IsEmpty]: Start isEmpty. Operand 194200 states and 292606 transitions. [2023-12-02 15:33:30,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2023-12-02 15:33:30,180 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:33:30,180 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:30,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 15:33:30,181 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:33:30,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:33:30,181 INFO L85 PathProgramCache]: Analyzing trace with hash 7514580, now seen corresponding path program 1 times [2023-12-02 15:33:30,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:33:30,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547163637] [2023-12-02 15:33:30,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:33:30,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:33:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:33:31,921 INFO L134 CoverageAnalysis]: Checked inductivity of 11820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11820 trivial. 0 not checked. [2023-12-02 15:33:31,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:33:31,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547163637] [2023-12-02 15:33:31,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547163637] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:33:31,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:33:31,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:33:31,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480892582] [2023-12-02 15:33:31,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:33:31,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:33:31,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:33:31,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:33:31,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:33:31,924 INFO L87 Difference]: Start difference. First operand 194200 states and 292606 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2023-12-02 15:33:34,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:33:36,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:33:39,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:33:41,922 WARN L539 Checker$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 15:33:46,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:33:48,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:33:54,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:33:56,400 WARN L539 Checker$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 15:34:03,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:05,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:12,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:34:12,803 INFO L93 Difference]: Finished difference Result 580088 states and 873816 transitions. [2023-12-02 15:34:12,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:34:12,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 828 [2023-12-02 15:34:12,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:34:15,164 INFO L225 Difference]: With dead ends: 580088 [2023-12-02 15:34:15,164 INFO L226 Difference]: Without dead ends: 386043 [2023-12-02 15:34:16,208 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 15:34:16,209 INFO L413 NwaCegarLoop]: 5176 mSDtfsCounter, 5108 mSDsluCounter, 4570 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 2 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5108 SdHoareTripleChecker+Valid, 9746 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2023-12-02 15:34:16,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5108 Valid, 9746 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 814 Invalid, 9 Unknown, 0 Unchecked, 27.7s Time] [2023-12-02 15:34:16,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386043 states. [2023-12-02 15:34:33,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386043 to 386008. [2023-12-02 15:34:34,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386008 states, 241037 states have (on average 1.3746478756373504) internal successors, (331341), 252619 states have internal predecessors, (331341), 125001 states have call successors, (125001), 19970 states have call predecessors, (125001), 19969 states have return successors, (125000), 120458 states have call predecessors, (125000), 125000 states have call successors, (125000) [2023-12-02 15:34:37,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386008 states to 386008 states and 581342 transitions. [2023-12-02 15:34:37,804 INFO L78 Accepts]: Start accepts. Automaton has 386008 states and 581342 transitions. Word has length 828 [2023-12-02 15:34:37,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:34:37,805 INFO L495 AbstractCegarLoop]: Abstraction has 386008 states and 581342 transitions. [2023-12-02 15:34:37,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (83), 2 states have call predecessors, (83), 1 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2023-12-02 15:34:37,805 INFO L276 IsEmpty]: Start isEmpty. Operand 386008 states and 581342 transitions. [2023-12-02 15:34:37,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2023-12-02 15:34:37,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:34:37,814 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:37,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 15:34:37,814 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:34:37,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:34:37,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1345325108, now seen corresponding path program 1 times [2023-12-02 15:34:37,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:34:37,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695573909] [2023-12-02 15:34:37,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:34:37,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:34:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:34:39,491 INFO L134 CoverageAnalysis]: Checked inductivity of 11820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11820 trivial. 0 not checked. [2023-12-02 15:34:39,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:34:39,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695573909] [2023-12-02 15:34:39,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695573909] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:34:39,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:34:39,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:34:39,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972702480] [2023-12-02 15:34:39,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:34:39,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:34:39,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:34:39,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:34:39,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:34:39,494 INFO L87 Difference]: Start difference. First operand 386008 states and 581342 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2023-12-02 15:34:41,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:43,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:46,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:34:49,779 WARN L539 Checker$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 15:35:08,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:35:08,369 INFO L93 Difference]: Finished difference Result 756629 states and 1137622 transitions. [2023-12-02 15:35:08,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:35:08,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 837 [2023-12-02 15:35:08,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:35:10,575 INFO L225 Difference]: With dead ends: 756629 [2023-12-02 15:35:10,575 INFO L226 Difference]: Without dead ends: 370776 [2023-12-02 15:35:12,446 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 15:35:12,446 INFO L413 NwaCegarLoop]: 4625 mSDtfsCounter, 5002 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5002 SdHoareTripleChecker+Valid, 4625 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-02 15:35:12,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5002 Valid, 4625 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 382 Invalid, 4 Unknown, 0 Unchecked, 11.6s Time] [2023-12-02 15:35:12,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370776 states. [2023-12-02 15:35:30,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370776 to 370776. [2023-12-02 15:35:31,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370776 states, 230925 states have (on average 1.3699902565768107) internal successors, (316365), 242251 states have internal predecessors, (316365), 120009 states have call successors, (120009), 19842 states have call predecessors, (120009), 19841 states have return successors, (120008), 115594 states have call predecessors, (120008), 120008 states have call successors, (120008) [2023-12-02 15:35:33,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370776 states to 370776 states and 556382 transitions. [2023-12-02 15:35:33,867 INFO L78 Accepts]: Start accepts. Automaton has 370776 states and 556382 transitions. Word has length 837 [2023-12-02 15:35:33,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:35:33,868 INFO L495 AbstractCegarLoop]: Abstraction has 370776 states and 556382 transitions. [2023-12-02 15:35:33,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2023-12-02 15:35:33,868 INFO L276 IsEmpty]: Start isEmpty. Operand 370776 states and 556382 transitions. [2023-12-02 15:35:33,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2023-12-02 15:35:33,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:35:33,876 INFO L195 NwaCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 39, 39, 39, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:35:33,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 15:35:33,876 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:35:33,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:35:33,876 INFO L85 PathProgramCache]: Analyzing trace with hash 168303091, now seen corresponding path program 1 times [2023-12-02 15:35:33,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:35:33,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143072538] [2023-12-02 15:35:33,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:35:33,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:35:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:35:35,754 INFO L134 CoverageAnalysis]: Checked inductivity of 11820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11820 trivial. 0 not checked. [2023-12-02 15:35:35,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:35:35,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143072538] [2023-12-02 15:35:35,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143072538] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:35:35,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:35:35,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:35:35,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572179165] [2023-12-02 15:35:35,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:35:35,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:35:35,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:35:35,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:35:35,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:35:35,757 INFO L87 Difference]: Start difference. First operand 370776 states and 556382 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2023-12-02 15:35:37,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:40,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:42,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:45,308 WARN L539 Checker$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 15:35:50,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:52,494 WARN L539 Checker$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 15:35:54,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:35:56,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:00,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:36:02,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []