./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c727ee56ff8cf558c3dc08b64ebc267261ea17bdfb88e50734daf71ad89adc7d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:16:59,850 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:16:59,947 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:16:59,952 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:16:59,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:16:59,980 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:16:59,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:16:59,981 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:16:59,982 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:16:59,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:16:59,983 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:16:59,984 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:16:59,985 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:16:59,985 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:16:59,986 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:16:59,987 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:16:59,987 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:16:59,988 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:16:59,988 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:16:59,989 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:16:59,990 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:16:59,991 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:16:59,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:16:59,992 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:16:59,992 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:16:59,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:16:59,994 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:16:59,994 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:16:59,994 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:16:59,995 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:16:59,995 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:16:59,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:16:59,996 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:16:59,997 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:16:59,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:16:59,998 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:16:59,998 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:16:59,998 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:16:59,999 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:16:59,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:16:59,999 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:17:00,000 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:17:00,000 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:17:00,000 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:17:00,000 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_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c727ee56ff8cf558c3dc08b64ebc267261ea17bdfb88e50734daf71ad89adc7d [2023-11-24 23:17:00,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:17:00,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:17:00,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:17:00,274 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:17:00,274 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:17:00,276 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-24 23:17:03,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:17:04,303 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:17:04,304 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-24 23:17:04,373 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/bin/utaipan-verify-SwPr7d2a91/data/fbd7eeda7/bbe8ef4b866b4a8db287352e9647f2a2/FLAGdb53ba8a4 [2023-11-24 23:17:04,392 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/bin/utaipan-verify-SwPr7d2a91/data/fbd7eeda7/bbe8ef4b866b4a8db287352e9647f2a2 [2023-11-24 23:17:04,398 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:17:04,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:17:04,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:17:04,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:17:04,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:17:04,412 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:17:04" (1/1) ... [2023-11-24 23:17:04,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43fb5911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:17:04, skipping insertion in model container [2023-11-24 23:17:04,414 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:17:04" (1/1) ... [2023-11-24 23:17:04,610 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:17:07,674 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_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328445,328458] [2023-11-24 23:17:07,681 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_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328590,328603] [2023-11-24 23:17:07,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:17:07,771 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:17:07,933 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"); [5755] [2023-11-24 23:17:07,935 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)); [5762] [2023-11-24 23:17:07,935 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5769] [2023-11-24 23:17:07,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5799-5800] [2023-11-24 23:17:07,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5805-5807] [2023-11-24 23:17:07,939 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5876] [2023-11-24 23:17:07,940 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5884] [2023-11-24 23:17:08,255 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_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328445,328458] [2023-11-24 23:17:08,256 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_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i[328590,328603] [2023-11-24 23:17:08,261 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:17:08,469 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:17:08,477 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:17:08,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:17:08 WrapperNode [2023-11-24 23:17:08,478 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:17:08,480 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:17:08,480 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:17:08,480 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:17:08,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:17:08" (1/1) ... [2023-11-24 23:17:08,619 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:17:08" (1/1) ... [2023-11-24 23:17:08,801 INFO L138 Inliner]: procedures = 388, calls = 2186, calls flagged for inlining = 154, calls inlined = 135, statements flattened = 4973 [2023-11-24 23:17:08,802 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:17:08,802 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:17:08,803 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:17:08,803 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:17:08,813 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:17:08" (1/1) ... [2023-11-24 23:17:08,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:17:08" (1/1) ... [2023-11-24 23:17:08,857 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:17:08" (1/1) ... [2023-11-24 23:17:08,870 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:17:08" (1/1) ... [2023-11-24 23:17:09,081 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:17:08" (1/1) ... [2023-11-24 23:17:09,114 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:17:08" (1/1) ... [2023-11-24 23:17:09,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:17:08" (1/1) ... [2023-11-24 23:17:09,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:17:08" (1/1) ... [2023-11-24 23:17:09,200 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:17:09,201 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:17:09,201 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:17:09,201 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:17:09,202 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:17:08" (1/1) ... [2023-11-24 23:17:09,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:17:09,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:17:09,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:17:09,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e356eea2-9c6f-4ef9-bc30-f9a87764f13c/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:17:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_97 [2023-11-24 23:17:09,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_97 [2023-11-24 23:17:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:17:09,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:17:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2023-11-24 23:17:09,278 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2023-11-24 23:17:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2023-11-24 23:17:09,279 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2023-11-24 23:17:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-24 23:17:09,279 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-24 23:17:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:17:09,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:17:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-24 23:17:09,280 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-24 23:17:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2023-11-24 23:17:09,281 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2023-11-24 23:17:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2023-11-24 23:17:09,282 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2023-11-24 23:17:09,282 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2023-11-24 23:17:09,284 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2023-11-24 23:17:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2023-11-24 23:17:09,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2023-11-24 23:17:09,284 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-24 23:17:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-24 23:17:09,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-24 23:17:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2023-11-24 23:17:09,285 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2023-11-24 23:17:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2023-11-24 23:17:09,285 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2023-11-24 23:17:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-24 23:17:09,285 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-24 23:17:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:17:09,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:17:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:17:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2023-11-24 23:17:09,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2023-11-24 23:17:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2023-11-24 23:17:09,286 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2023-11-24 23:17:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-24 23:17:09,287 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-24 23:17:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2023-11-24 23:17:09,287 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2023-11-24 23:17:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-24 23:17:09,287 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-24 23:17:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2023-11-24 23:17:09,287 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2023-11-24 23:17:09,287 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2023-11-24 23:17:09,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2023-11-24 23:17:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:17:09,288 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2023-11-24 23:17:09,288 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2023-11-24 23:17:09,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2023-11-24 23:17:09,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2023-11-24 23:17:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2023-11-24 23:17:09,290 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2023-11-24 23:17:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:17:09,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-24 23:17:09,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-24 23:17:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2023-11-24 23:17:09,291 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2023-11-24 23:17:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:17:09,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:17:09,291 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:17:09,292 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2023-11-24 23:17:09,292 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2023-11-24 23:17:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-24 23:17:09,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-24 23:17:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-24 23:17:09,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-24 23:17:09,293 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-24 23:17:09,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-24 23:17:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2023-11-24 23:17:09,294 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2023-11-24 23:17:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2023-11-24 23:17:09,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2023-11-24 23:17:09,294 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2023-11-24 23:17:09,295 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2023-11-24 23:17:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2023-11-24 23:17:09,295 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2023-11-24 23:17:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:17:09,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-24 23:17:09,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-24 23:17:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2023-11-24 23:17:09,296 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2023-11-24 23:17:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:17:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-24 23:17:09,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-24 23:17:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-24 23:17:09,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-24 23:17:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:17:09,296 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:17:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:17:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:17:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:17:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2023-11-24 23:17:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2023-11-24 23:17:09,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-24 23:17:09,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-24 23:17:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-24 23:17:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-24 23:17:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-24 23:17:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-24 23:17:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-24 23:17:09,299 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-24 23:17:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2023-11-24 23:17:09,299 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2023-11-24 23:17:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2023-11-24 23:17:09,299 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2023-11-24 23:17:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-24 23:17:09,300 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-24 23:17:09,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-24 23:17:09,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-24 23:17:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2023-11-24 23:17:09,301 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2023-11-24 23:17:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:17:09,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:17:09,301 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2023-11-24 23:17:09,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2023-11-24 23:17:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:17:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:17:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:17:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:17:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2023-11-24 23:17:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2023-11-24 23:17:09,302 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-11-24 23:17:09,302 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-11-24 23:17:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2023-11-24 23:17:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2023-11-24 23:17:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2023-11-24 23:17:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2023-11-24 23:17:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-24 23:17:09,303 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-24 23:17:09,303 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2023-11-24 23:17:09,304 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2023-11-24 23:17:09,304 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2023-11-24 23:17:09,304 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2023-11-24 23:17:09,305 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-24 23:17:09,306 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-24 23:17:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:17:09,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:17:09,310 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2023-11-24 23:17:09,310 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2023-11-24 23:17:09,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:17:09,311 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:17:09,311 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:17:09,312 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-24 23:17:09,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-24 23:17:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2023-11-24 23:17:09,316 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2023-11-24 23:17:09,316 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-24 23:17:09,316 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-24 23:17:09,317 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-24 23:17:09,317 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-24 23:17:09,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-24 23:17:09,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-24 23:17:09,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-24 23:17:09,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-24 23:17:09,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-24 23:17:09,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-24 23:17:09,317 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2023-11-24 23:17:09,318 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2023-11-24 23:17:09,318 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-24 23:17:09,318 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-24 23:17:09,318 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-24 23:17:09,318 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-24 23:17:09,318 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-24 23:17:09,318 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-24 23:17:09,318 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-24 23:17:09,318 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-24 23:17:09,319 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-24 23:17:09,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-24 23:17:09,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:17:09,319 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2023-11-24 23:17:09,319 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2023-11-24 23:17:09,319 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2023-11-24 23:17:09,319 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2023-11-24 23:17:09,319 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-24 23:17:09,319 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-24 23:17:09,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:17:09,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:17:09,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2023-11-24 23:17:09,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2023-11-24 23:17:09,322 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2023-11-24 23:17:09,322 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2023-11-24 23:17:09,322 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2023-11-24 23:17:09,322 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2023-11-24 23:17:09,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-24 23:17:09,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-24 23:17:09,322 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2023-11-24 23:17:09,323 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2023-11-24 23:17:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2023-11-24 23:17:09,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2023-11-24 23:17:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2023-11-24 23:17:09,323 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2023-11-24 23:17:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-24 23:17:09,323 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-24 23:17:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:17:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-11-24 23:17:09,324 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-11-24 23:17:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-24 23:17:09,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-24 23:17:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2023-11-24 23:17:09,324 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2023-11-24 23:17:10,157 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:17:10,167 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:17:10,549 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:17:15,440 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-24 23:17:16,729 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:17:18,778 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:17:18,778 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:17:18,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:17:18 BoogieIcfgContainer [2023-11-24 23:17:18,782 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:17:18,785 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:17:18,785 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:17:18,788 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:17:18,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:17:04" (1/3) ... [2023-11-24 23:17:18,791 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6387de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:17:18, skipping insertion in model container [2023-11-24 23:17:18,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:17:08" (2/3) ... [2023-11-24 23:17:18,791 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6387de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:17:18, skipping insertion in model container [2023-11-24 23:17:18,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:17:18" (3/3) ... [2023-11-24 23:17:18,793 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-24 23:17:18,814 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:17:18,814 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:17:18,933 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:17:18,942 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;@1e2fcc86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:17:18,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:17:18,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 1759 states, 954 states have (on average 1.2442348008385744) internal successors, (1187), 975 states have internal predecessors, (1187), 712 states have call successors, (712), 93 states have call predecessors, (712), 92 states have return successors, (708), 697 states have call predecessors, (708), 708 states have call successors, (708) [2023-11-24 23:17:19,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-24 23:17:19,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:17:19,014 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:17:19,014 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:17:19,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:17:19,020 INFO L85 PathProgramCache]: Analyzing trace with hash 234822219, now seen corresponding path program 1 times [2023-11-24 23:17:19,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:17:19,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310067245] [2023-11-24 23:17:19,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:17:19,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:17:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:17:20,153 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2023-11-24 23:17:20,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:17:20,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310067245] [2023-11-24 23:17:20,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310067245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:17:20,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:17:20,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:17:20,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397228104] [2023-11-24 23:17:20,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:17:20,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:17:20,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:17:20,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:17:20,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:17:20,220 INFO L87 Difference]: Start difference. First operand has 1759 states, 954 states have (on average 1.2442348008385744) internal successors, (1187), 975 states have internal predecessors, (1187), 712 states have call successors, (712), 93 states have call predecessors, (712), 92 states have return successors, (708), 697 states have call predecessors, (708), 708 states have call successors, (708) Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-24 23:17:23,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:17:23,704 INFO L93 Difference]: Finished difference Result 4881 states and 7267 transitions. [2023-11-24 23:17:23,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:17:23,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 136 [2023-11-24 23:17:23,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:17:23,757 INFO L225 Difference]: With dead ends: 4881 [2023-11-24 23:17:23,757 INFO L226 Difference]: Without dead ends: 3040 [2023-11-24 23:17:23,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:17:23,781 INFO L413 NwaCegarLoop]: 2474 mSDtfsCounter, 2061 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2061 SdHoareTripleChecker+Valid, 4824 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:17:23,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2061 Valid, 4824 Invalid, 485 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-24 23:17:23,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3040 states. [2023-11-24 23:17:24,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3040 to 3036. [2023-11-24 23:17:24,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3036 states, 1638 states have (on average 1.23992673992674) internal successors, (2031), 1678 states have internal predecessors, (2031), 1230 states have call successors, (1230), 168 states have call predecessors, (1230), 167 states have return successors, (1247), 1205 states have call predecessors, (1247), 1230 states have call successors, (1247) [2023-11-24 23:17:24,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 3036 states and 4508 transitions. [2023-11-24 23:17:24,310 INFO L78 Accepts]: Start accepts. Automaton has 3036 states and 4508 transitions. Word has length 136 [2023-11-24 23:17:24,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:17:24,312 INFO L495 AbstractCegarLoop]: Abstraction has 3036 states and 4508 transitions. [2023-11-24 23:17:24,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-11-24 23:17:24,313 INFO L276 IsEmpty]: Start isEmpty. Operand 3036 states and 4508 transitions. [2023-11-24 23:17:24,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-11-24 23:17:24,343 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:17:24,343 INFO L195 NwaCegarLoop]: trace histogram [8, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:17:24,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:17:24,345 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:17:24,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:17:24,347 INFO L85 PathProgramCache]: Analyzing trace with hash 839298388, now seen corresponding path program 1 times [2023-11-24 23:17:24,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:17:24,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119556715] [2023-11-24 23:17:24,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:17:24,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:17:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:17:24,944 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2023-11-24 23:17:24,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:17:24,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119556715] [2023-11-24 23:17:24,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119556715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:17:24,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:17:24,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:17:24,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308586914] [2023-11-24 23:17:24,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:17:24,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:17:24,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:17:24,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:17:24,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:17:24,950 INFO L87 Difference]: Start difference. First operand 3036 states and 4508 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-24 23:17:29,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:17:29,233 INFO L93 Difference]: Finished difference Result 8055 states and 11966 transitions. [2023-11-24 23:17:29,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:17:29,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 194 [2023-11-24 23:17:29,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:17:29,285 INFO L225 Difference]: With dead ends: 8055 [2023-11-24 23:17:29,285 INFO L226 Difference]: Without dead ends: 5030 [2023-11-24 23:17:29,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:17:29,315 INFO L413 NwaCegarLoop]: 2380 mSDtfsCounter, 1736 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1736 SdHoareTripleChecker+Valid, 4649 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:17:29,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1736 Valid, 4649 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-24 23:17:29,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5030 states. [2023-11-24 23:17:29,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5030 to 5026. [2023-11-24 23:17:29,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5026 states, 2698 states have (on average 1.2357301704966641) internal successors, (3334), 2756 states have internal predecessors, (3334), 2045 states have call successors, (2045), 283 states have call predecessors, (2045), 282 states have return successors, (2062), 2012 states have call predecessors, (2062), 2045 states have call successors, (2062) [2023-11-24 23:17:29,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5026 states to 5026 states and 7441 transitions. [2023-11-24 23:17:29,804 INFO L78 Accepts]: Start accepts. Automaton has 5026 states and 7441 transitions. Word has length 194 [2023-11-24 23:17:29,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:17:29,805 INFO L495 AbstractCegarLoop]: Abstraction has 5026 states and 7441 transitions. [2023-11-24 23:17:29,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-24 23:17:29,806 INFO L276 IsEmpty]: Start isEmpty. Operand 5026 states and 7441 transitions. [2023-11-24 23:17:29,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-11-24 23:17:29,831 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:17:29,832 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:17:29,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:17:29,832 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:17:29,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:17:29,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1470365965, now seen corresponding path program 1 times [2023-11-24 23:17:29,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:17:29,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669435878] [2023-11-24 23:17:29,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:17:29,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:17:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:17:30,531 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2023-11-24 23:17:30,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:17:30,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669435878] [2023-11-24 23:17:30,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669435878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:17:30,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:17:30,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:17:30,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043824641] [2023-11-24 23:17:30,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:17:30,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:17:30,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:17:30,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:17:30,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:17:30,536 INFO L87 Difference]: Start difference. First operand 5026 states and 7441 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-11-24 23:17:34,251 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 [] [2023-11-24 23:17:35,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:17:35,398 INFO L93 Difference]: Finished difference Result 12035 states and 17831 transitions. [2023-11-24 23:17:35,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:17:35,399 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), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 240 [2023-11-24 23:17:35,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:17:35,469 INFO L225 Difference]: With dead ends: 12035 [2023-11-24 23:17:35,469 INFO L226 Difference]: Without dead ends: 7020 [2023-11-24 23:17:35,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:17:35,513 INFO L413 NwaCegarLoop]: 3885 mSDtfsCounter, 1745 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1745 SdHoareTripleChecker+Valid, 6138 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:17:35,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1745 Valid, 6138 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-24 23:17:35,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7020 states. [2023-11-24 23:17:36,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7020 to 7016. [2023-11-24 23:17:36,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7016 states, 3757 states have (on average 1.2339632685653448) internal successors, (4636), 3833 states have internal predecessors, (4636), 2860 states have call successors, (2860), 399 states have call predecessors, (2860), 398 states have return successors, (2877), 2819 states have call predecessors, (2877), 2860 states have call successors, (2877) [2023-11-24 23:17:36,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7016 states to 7016 states and 10373 transitions. [2023-11-24 23:17:36,313 INFO L78 Accepts]: Start accepts. Automaton has 7016 states and 10373 transitions. Word has length 240 [2023-11-24 23:17:36,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:17:36,314 INFO L495 AbstractCegarLoop]: Abstraction has 7016 states and 10373 transitions. [2023-11-24 23:17:36,314 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), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2023-11-24 23:17:36,314 INFO L276 IsEmpty]: Start isEmpty. Operand 7016 states and 10373 transitions. [2023-11-24 23:17:36,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-11-24 23:17:36,350 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:17:36,350 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:17:36,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:17:36,350 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:17:36,351 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:17:36,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1012519450, now seen corresponding path program 1 times [2023-11-24 23:17:36,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:17:36,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904656698] [2023-11-24 23:17:36,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:17:36,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:17:36,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:17:37,273 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2023-11-24 23:17:37,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:17:37,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904656698] [2023-11-24 23:17:37,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904656698] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:17:37,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:17:37,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:17:37,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280475627] [2023-11-24 23:17:37,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:17:37,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:17:37,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:17:37,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:17:37,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:17:37,278 INFO L87 Difference]: Start difference. First operand 7016 states and 10373 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2023-11-24 23:17:41,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:17:41,571 INFO L93 Difference]: Finished difference Result 16229 states and 23988 transitions. [2023-11-24 23:17:41,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:17:41,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 303 [2023-11-24 23:17:41,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:17:41,686 INFO L225 Difference]: With dead ends: 16229 [2023-11-24 23:17:41,687 INFO L226 Difference]: Without dead ends: 9224 [2023-11-24 23:17:41,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:17:41,750 INFO L413 NwaCegarLoop]: 3975 mSDtfsCounter, 2259 mSDsluCounter, 1923 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 5898 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:17:41,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2259 Valid, 5898 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-24 23:17:41,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9224 states. [2023-11-24 23:17:42,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9224 to 9220. [2023-11-24 23:17:42,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9220 states, 4938 states have (on average 1.2330903199675982) internal successors, (6089), 5035 states have internal predecessors, (6089), 3748 states have call successors, (3748), 535 states have call predecessors, (3748), 533 states have return successors, (3765), 3695 states have call predecessors, (3765), 3748 states have call successors, (3765) [2023-11-24 23:17:42,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9220 states to 9220 states and 13602 transitions. [2023-11-24 23:17:42,735 INFO L78 Accepts]: Start accepts. Automaton has 9220 states and 13602 transitions. Word has length 303 [2023-11-24 23:17:42,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:17:42,737 INFO L495 AbstractCegarLoop]: Abstraction has 9220 states and 13602 transitions. [2023-11-24 23:17:42,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2023-11-24 23:17:42,739 INFO L276 IsEmpty]: Start isEmpty. Operand 9220 states and 13602 transitions. [2023-11-24 23:17:42,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2023-11-24 23:17:42,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:17:42,777 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 8, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:17:42,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:17:42,777 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:17:42,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:17:42,778 INFO L85 PathProgramCache]: Analyzing trace with hash -41607174, now seen corresponding path program 1 times [2023-11-24 23:17:42,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:17:42,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484441773] [2023-11-24 23:17:42,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:17:42,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:17:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:17:43,628 INFO L134 CoverageAnalysis]: Checked inductivity of 560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2023-11-24 23:17:43,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:17:43,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484441773] [2023-11-24 23:17:43,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484441773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:17:43,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:17:43,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:17:43,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193618296] [2023-11-24 23:17:43,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:17:43,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:17:43,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:17:43,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:17:43,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:17:43,631 INFO L87 Difference]: Start difference. First operand 9220 states and 13602 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47)