./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_e6086c75-23c9-49ea-b1f5-c979b66f7a61/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6086c75-23c9-49ea-b1f5-c979b66f7a61/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6086c75-23c9-49ea-b1f5-c979b66f7a61/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6086c75-23c9-49ea-b1f5-c979b66f7a61/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6086c75-23c9-49ea-b1f5-c979b66f7a61/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6086c75-23c9-49ea-b1f5-c979b66f7a61/bin/utaipan-verify-mE87zJ7Ire --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 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:09:45,147 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:09:45,276 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6086c75-23c9-49ea-b1f5-c979b66f7a61/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:09:45,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:09:45,292 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:09:45,339 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:09:45,340 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:09:45,341 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:09:45,342 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:09:45,349 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:09:45,350 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:09:45,351 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:09:45,352 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:09:45,354 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:09:45,354 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:09:45,355 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:09:45,355 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:09:45,356 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:09:45,357 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:09:45,357 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:09:45,358 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:09:45,382 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:09:45,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:09:45,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:09:45,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:09:45,384 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:09:45,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:09:45,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:09:45,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:09:45,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:09:45,387 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:09:45,388 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:09:45,388 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:09:45,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:09:45,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:45,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:09:45,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:09:45,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:09:45,391 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:09:45,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:09:45,391 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:09:45,392 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:09:45,392 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:09:45,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:09:45,393 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_e6086c75-23c9-49ea-b1f5-c979b66f7a61/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6086c75-23c9-49ea-b1f5-c979b66f7a61/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c1be66de5de44f99e184f931232a9d8bcb0b8fd4712efbcede070913355a2c0 [2023-11-23 21:09:45,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:09:45,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:09:45,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:09:45,751 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:09:45,752 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:09:45,753 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6086c75-23c9-49ea-b1f5-c979b66f7a61/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-23 21:09:48,911 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:09:49,679 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:09:49,680 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6086c75-23c9-49ea-b1f5-c979b66f7a61/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-23 21:09:49,738 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6086c75-23c9-49ea-b1f5-c979b66f7a61/bin/utaipan-verify-mE87zJ7Ire/data/76fe1098c/a12fa24f661544fab11a64ed9d4045b4/FLAGfbfb315f7 [2023-11-23 21:09:49,752 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6086c75-23c9-49ea-b1f5-c979b66f7a61/bin/utaipan-verify-mE87zJ7Ire/data/76fe1098c/a12fa24f661544fab11a64ed9d4045b4 [2023-11-23 21:09:49,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:09:49,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:09:49,758 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:49,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:09:49,764 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:09:49,765 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:49" (1/1) ... [2023-11-23 21:09:49,766 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a3f4ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:49, skipping insertion in model container [2023-11-23 21:09:49,767 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:09:49" (1/1) ... [2023-11-23 21:09:49,937 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:09:52,898 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_e6086c75-23c9-49ea-b1f5-c979b66f7a61/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324559,324572] [2023-11-23 21:09:52,904 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_e6086c75-23c9-49ea-b1f5-c979b66f7a61/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324728,324741] [2023-11-23 21:09:52,906 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_e6086c75-23c9-49ea-b1f5-c979b66f7a61/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324895,324908] [2023-11-23 21:09:52,907 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_e6086c75-23c9-49ea-b1f5-c979b66f7a61/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[325063,325076] [2023-11-23 21:09:52,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:53,010 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:09:53,201 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"); [5761] [2023-11-23 21:09:53,204 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)); [5768] [2023-11-23 21:09:53,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5775] [2023-11-23 21:09:53,206 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/7cdfae59d3ac602223400f61d8829e28/klever-core-work-dir/520b8de/linux-kernel-locking-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5805-5806] [2023-11-23 21:09:53,206 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"); [5811-5813] [2023-11-23 21:09:53,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5894] [2023-11-23 21:09:53,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5902] [2023-11-23 21:09:53,521 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_e6086c75-23c9-49ea-b1f5-c979b66f7a61/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324559,324572] [2023-11-23 21:09:53,522 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_e6086c75-23c9-49ea-b1f5-c979b66f7a61/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324728,324741] [2023-11-23 21:09:53,522 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_e6086c75-23c9-49ea-b1f5-c979b66f7a61/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[324895,324908] [2023-11-23 21:09:53,523 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_e6086c75-23c9-49ea-b1f5-c979b66f7a61/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i[325063,325076] [2023-11-23 21:09:53,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:09:53,697 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:09:53,706 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:09:53,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:53 WrapperNode [2023-11-23 21:09:53,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:09:53,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:53,708 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:09:53,709 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:09:53,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:53" (1/1) ... [2023-11-23 21:09:53,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:53" (1/1) ... [2023-11-23 21:09:54,093 INFO L138 Inliner]: procedures = 386, calls = 2104, calls flagged for inlining = 151, calls inlined = 130, statements flattened = 4671 [2023-11-23 21:09:54,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:09:54,095 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:09:54,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:09:54,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:09:54,105 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:53" (1/1) ... [2023-11-23 21:09:54,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:53" (1/1) ... [2023-11-23 21:09:54,162 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:53" (1/1) ... [2023-11-23 21:09:54,163 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:53" (1/1) ... [2023-11-23 21:09:54,320 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:53" (1/1) ... [2023-11-23 21:09:54,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:53" (1/1) ... [2023-11-23 21:09:54,390 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:53" (1/1) ... [2023-11-23 21:09:54,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:53" (1/1) ... [2023-11-23 21:09:54,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:09:54,454 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:09:54,454 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:09:54,454 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:09:54,455 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:53" (1/1) ... [2023-11-23 21:09:54,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:09:54,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6086c75-23c9-49ea-b1f5-c979b66f7a61/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:09:54,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6086c75-23c9-49ea-b1f5-c979b66f7a61/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:09:54,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6086c75-23c9-49ea-b1f5-c979b66f7a61/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:09:54,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:09:54,533 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:09:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure RxCurCount [2023-11-23 21:09:54,533 INFO L138 BoogieDeclarations]: Found implementation of procedure RxCurCount [2023-11-23 21:09:54,533 INFO L130 BoogieDeclarations]: Found specification of procedure irda_setup_dma [2023-11-23 21:09:54,534 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_setup_dma [2023-11-23 21:09:54,534 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:09:54,534 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:09:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:09:54,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:09:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_73 [2023-11-23 21:09:54,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_73 [2023-11-23 21:09:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 21:09:54,536 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 21:09:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure CheckRegBit [2023-11-23 21:09:54,539 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckRegBit [2023-11-23 21:09:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:09:54,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-23 21:09:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure via_remove_one [2023-11-23 21:09:54,539 INFO L138 BoogieDeclarations]: Found implementation of procedure via_remove_one [2023-11-23 21:09:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_speed [2023-11-23 21:09:54,540 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_speed [2023-11-23 21:09:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2023-11-23 21:09:54,540 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2023-11-23 21:09:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:09:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:09:54,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:09:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure SetPulseWidth [2023-11-23 21:09:54,541 INFO L138 BoogieDeclarations]: Found implementation of procedure SetPulseWidth [2023-11-23 21:09:54,541 INFO L130 BoogieDeclarations]: Found specification of procedure Tdelay [2023-11-23 21:09:54,541 INFO L138 BoogieDeclarations]: Found implementation of procedure Tdelay [2023-11-23 21:09:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-23 21:09:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-23 21:09:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:09:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:09:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:09:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ClkTx [2023-11-23 21:09:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ClkTx [2023-11-23 21:09:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure WriteLPCReg [2023-11-23 21:09:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteLPCReg [2023-11-23 21:09:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-23 21:09:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-23 21:09:54,543 INFO L130 BoogieDeclarations]: Found specification of procedure CommonInit [2023-11-23 21:09:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure CommonInit [2023-11-23 21:09:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:09:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:09:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_change_dongle_speed [2023-11-23 21:09:54,545 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_change_dongle_speed [2023-11-23 21:09:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure ReadLPCReg [2023-11-23 21:09:54,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadLPCReg [2023-11-23 21:09:54,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:09:54,546 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma [2023-11-23 21:09:54,547 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma [2023-11-23 21:09:54,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_via_ircc_cb [2023-11-23 21:09:54,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_via_ircc_cb [2023-11-23 21:09:54,547 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_receive [2023-11-23 21:09:54,547 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_receive [2023-11-23 21:09:54,547 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:09:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:09:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:09:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:09:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:09:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_close [2023-11-23 21:09:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_close [2023-11-23 21:09:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:09:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:09:54,550 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:09:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure CkRxRecv [2023-11-23 21:09:54,550 INFO L138 BoogieDeclarations]: Found implementation of procedure CkRxRecv [2023-11-23 21:09:54,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 21:09:54,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 21:09:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 21:09:54,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 21:09:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure irda_get_next_speed [2023-11-23 21:09:54,552 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_get_next_speed [2023-11-23 21:09:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure ReadReg [2023-11-23 21:09:54,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadReg [2023-11-23 21:09:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_open [2023-11-23 21:09:54,553 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_open [2023-11-23 21:09:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 21:09:54,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-23 21:09:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure WriteRegBit [2023-11-23 21:09:54,553 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteRegBit [2023-11-23 21:09:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:09:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Indx [2023-11-23 21:09:54,554 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Indx [2023-11-23 21:09:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:09:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:09:54,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:09:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:09:54,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:09:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:09:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:09:54,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:09:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:09:54,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:09:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure WriteReg [2023-11-23 21:09:54,556 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteReg [2023-11-23 21:09:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-23 21:09:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-23 21:09:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:09:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:09:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure SetBaudRate [2023-11-23 21:09:54,558 INFO L138 BoogieDeclarations]: Found implementation of procedure SetBaudRate [2023-11-23 21:09:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure Wr_Byte [2023-11-23 21:09:54,558 INFO L138 BoogieDeclarations]: Found implementation of procedure Wr_Byte [2023-11-23 21:09:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 21:09:54,559 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 21:09:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 21:09:54,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 21:09:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_net_open [2023-11-23 21:09:54,559 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_net_open [2023-11-23 21:09:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:09:54,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:09:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure ResetChip [2023-11-23 21:09:54,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ResetChip [2023-11-23 21:09:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:09:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:09:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:09:54,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:09:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure irda_device_txqueue_empty [2023-11-23 21:09:54,561 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_device_txqueue_empty [2023-11-23 21:09:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:09:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-23 21:09:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2023-11-23 21:09:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2023-11-23 21:09:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure Sdelay [2023-11-23 21:09:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure Sdelay [2023-11-23 21:09:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure SetSIR [2023-11-23 21:09:54,564 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSIR [2023-11-23 21:09:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:09:54,564 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:09:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure SetMaxRxPacketSize [2023-11-23 21:09:54,566 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMaxRxPacketSize [2023-11-23 21:09:54,568 INFO L130 BoogieDeclarations]: Found specification of procedure GetRecvByte [2023-11-23 21:09:54,569 INFO L138 BoogieDeclarations]: Found implementation of procedure GetRecvByte [2023-11-23 21:09:54,569 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 21:09:54,569 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 21:09:54,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:09:54,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:09:54,571 INFO L130 BoogieDeclarations]: Found specification of procedure hwreset [2023-11-23 21:09:54,571 INFO L138 BoogieDeclarations]: Found implementation of procedure hwreset [2023-11-23 21:09:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:09:54,577 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:09:54,578 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:09:54,578 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-23 21:09:54,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-23 21:09:54,578 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2023-11-23 21:09:54,578 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2023-11-23 21:09:54,578 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:09:54,579 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:09:54,579 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-23 21:09:54,579 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-23 21:09:54,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:09:54,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:09:54,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-23 21:09:54,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-23 21:09:54,580 INFO L130 BoogieDeclarations]: Found specification of procedure via_ircc_dma_xmit [2023-11-23 21:09:54,580 INFO L138 BoogieDeclarations]: Found implementation of procedure via_ircc_dma_xmit [2023-11-23 21:09:54,580 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-23 21:09:54,580 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-23 21:09:54,580 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-23 21:09:54,581 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-23 21:09:54,581 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 21:09:54,581 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 21:09:54,581 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:09:54,581 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:09:54,581 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-23 21:09:54,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-23 21:09:54,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:09:54,582 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2023-11-23 21:09:54,582 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2023-11-23 21:09:54,582 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendByte [2023-11-23 21:09:54,582 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendByte [2023-11-23 21:09:54,582 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-23 21:09:54,582 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-23 21:09:54,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:09:54,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:09:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2023-11-23 21:09:54,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_via_ircc_cb [2023-11-23 21:09:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure SetSendPreambleCount [2023-11-23 21:09:54,583 INFO L138 BoogieDeclarations]: Found implementation of procedure SetSendPreambleCount [2023-11-23 21:09:54,583 INFO L130 BoogieDeclarations]: Found specification of procedure InitCard [2023-11-23 21:09:54,583 INFO L138 BoogieDeclarations]: Found implementation of procedure InitCard [2023-11-23 21:09:54,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:09:54,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:09:54,584 INFO L130 BoogieDeclarations]: Found specification of procedure SetTimer [2023-11-23 21:09:54,584 INFO L138 BoogieDeclarations]: Found implementation of procedure SetTimer [2023-11-23 21:09:54,584 INFO L130 BoogieDeclarations]: Found specification of procedure ActClk [2023-11-23 21:09:54,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ActClk [2023-11-23 21:09:54,584 INFO L130 BoogieDeclarations]: Found specification of procedure request_dma [2023-11-23 21:09:54,585 INFO L138 BoogieDeclarations]: Found implementation of procedure request_dma [2023-11-23 21:09:54,585 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-23 21:09:54,585 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-23 21:09:54,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:09:54,585 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-11-23 21:09:54,585 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-11-23 21:09:54,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 21:09:54,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 21:09:54,586 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_to_linear_data [2023-11-23 21:09:54,586 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_to_linear_data [2023-11-23 21:09:55,350 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:09:55,355 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:09:55,570 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:10:01,894 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:10:04,080 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:10:04,081 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:10:04,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:04 BoogieIcfgContainer [2023-11-23 21:10:04,084 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:10:04,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:10:04,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:10:04,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:10:04,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:09:49" (1/3) ... [2023-11-23 21:10:04,094 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1065c212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:04, skipping insertion in model container [2023-11-23 21:10:04,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:09:53" (2/3) ... [2023-11-23 21:10:04,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1065c212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:10:04, skipping insertion in model container [2023-11-23 21:10:04,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:10:04" (3/3) ... [2023-11-23 21:10:04,097 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-kernel-locking-spinlock_drivers-net-irda-via-ircc.cil.i [2023-11-23 21:10:04,120 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:10:04,121 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-23 21:10:04,242 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:10:04,252 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;@706392b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:10:04,253 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-23 21:10:04,267 INFO L276 IsEmpty]: Start isEmpty. Operand has 1670 states, 888 states have (on average 1.239864864864865) internal successors, (1101), 920 states have internal predecessors, (1101), 687 states have call successors, (687), 92 states have call predecessors, (687), 91 states have return successors, (684), 673 states have call predecessors, (684), 684 states have call successors, (684) [2023-11-23 21:10:04,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 21:10:04,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:04,283 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:04,284 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:10:04,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:04,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1390504167, now seen corresponding path program 1 times [2023-11-23 21:10:04,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:04,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173613471] [2023-11-23 21:10:04,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:04,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:04,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:05,546 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-23 21:10:05,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:10:05,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173613471] [2023-11-23 21:10:05,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173613471] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:05,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:05,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:10:05,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624429130] [2023-11-23 21:10:05,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:05,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:10:05,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:10:05,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:10:05,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:10:05,620 INFO L87 Difference]: Start difference. First operand has 1670 states, 888 states have (on average 1.239864864864865) internal successors, (1101), 920 states have internal predecessors, (1101), 687 states have call successors, (687), 92 states have call predecessors, (687), 91 states have return successors, (684), 673 states have call predecessors, (684), 684 states have call successors, (684) Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 21:10:08,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:11,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:11,998 INFO L93 Difference]: Finished difference Result 3318 states and 4944 transitions. [2023-11-23 21:10:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:10:12,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2023-11-23 21:10:12,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:12,180 INFO L225 Difference]: With dead ends: 3318 [2023-11-23 21:10:12,180 INFO L226 Difference]: Without dead ends: 1664 [2023-11-23 21:10:12,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:10:12,234 INFO L413 NwaCegarLoop]: 2266 mSDtfsCounter, 2444 mSDsluCounter, 4516 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2458 SdHoareTripleChecker+Valid, 6782 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:12,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2458 Valid, 6782 Invalid, 617 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-23 21:10:12,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2023-11-23 21:10:12,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1664. [2023-11-23 21:10:12,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1664 states, 886 states have (on average 1.234762979683973) internal successors, (1094), 918 states have internal predecessors, (1094), 684 states have call successors, (684), 92 states have call predecessors, (684), 91 states have return successors, (681), 670 states have call predecessors, (681), 681 states have call successors, (681) [2023-11-23 21:10:12,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2459 transitions. [2023-11-23 21:10:12,541 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2459 transitions. Word has length 39 [2023-11-23 21:10:12,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:12,542 INFO L495 AbstractCegarLoop]: Abstraction has 1664 states and 2459 transitions. [2023-11-23 21:10:12,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-23 21:10:12,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2459 transitions. [2023-11-23 21:10:12,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-23 21:10:12,545 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:12,546 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 21:10:12,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:10:12,546 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:10:12,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:12,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1315906892, now seen corresponding path program 1 times [2023-11-23 21:10:12,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:12,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820121047] [2023-11-23 21:10:12,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:12,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:13,052 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-23 21:10:13,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:10:13,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820121047] [2023-11-23 21:10:13,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820121047] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:13,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:13,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:10:13,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597677381] [2023-11-23 21:10:13,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:13,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:10:13,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:10:13,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:10:13,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:10:13,056 INFO L87 Difference]: Start difference. First operand 1664 states and 2459 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 21:10:16,237 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 [] [2023-11-23 21:10:20,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:20,263 INFO L93 Difference]: Finished difference Result 1670 states and 2464 transitions. [2023-11-23 21:10:20,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:10:20,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 44 [2023-11-23 21:10:20,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:20,281 INFO L225 Difference]: With dead ends: 1670 [2023-11-23 21:10:20,282 INFO L226 Difference]: Without dead ends: 1668 [2023-11-23 21:10:20,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:10:20,285 INFO L413 NwaCegarLoop]: 2258 mSDtfsCounter, 2429 mSDsluCounter, 4494 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2441 SdHoareTripleChecker+Valid, 6752 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:20,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2441 Valid, 6752 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 615 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2023-11-23 21:10:20,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2023-11-23 21:10:20,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1668. [2023-11-23 21:10:20,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 889 states have (on average 1.2339707536557931) internal successors, (1097), 921 states have internal predecessors, (1097), 684 states have call successors, (684), 93 states have call predecessors, (684), 92 states have return successors, (681), 670 states have call predecessors, (681), 681 states have call successors, (681) [2023-11-23 21:10:20,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2462 transitions. [2023-11-23 21:10:20,518 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2462 transitions. Word has length 44 [2023-11-23 21:10:20,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:20,518 INFO L495 AbstractCegarLoop]: Abstraction has 1668 states and 2462 transitions. [2023-11-23 21:10:20,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-23 21:10:20,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2462 transitions. [2023-11-23 21:10:20,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-23 21:10:20,521 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:20,522 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-23 21:10:20,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:10:20,522 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:10:20,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:20,523 INFO L85 PathProgramCache]: Analyzing trace with hash 412302268, now seen corresponding path program 1 times [2023-11-23 21:10:20,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:20,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445457029] [2023-11-23 21:10:20,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:20,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:20,993 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-23 21:10:20,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:10:20,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445457029] [2023-11-23 21:10:20,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445457029] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:20,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:20,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:10:20,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751993323] [2023-11-23 21:10:20,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:20,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:10:20,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:10:20,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:10:20,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:10:20,997 INFO L87 Difference]: Start difference. First operand 1668 states and 2462 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:10:22,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:25,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:27,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:27,136 INFO L93 Difference]: Finished difference Result 1674 states and 2467 transitions. [2023-11-23 21:10:27,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:10:27,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-11-23 21:10:27,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:27,152 INFO L225 Difference]: With dead ends: 1674 [2023-11-23 21:10:27,152 INFO L226 Difference]: Without dead ends: 1672 [2023-11-23 21:10:27,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:10:27,155 INFO L413 NwaCegarLoop]: 2258 mSDtfsCounter, 2426 mSDsluCounter, 4494 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2437 SdHoareTripleChecker+Valid, 6752 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:27,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2437 Valid, 6752 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-23 21:10:27,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2023-11-23 21:10:27,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2023-11-23 21:10:27,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 892 states have (on average 1.2331838565022422) internal successors, (1100), 924 states have internal predecessors, (1100), 684 states have call successors, (684), 94 states have call predecessors, (684), 93 states have return successors, (681), 670 states have call predecessors, (681), 681 states have call successors, (681) [2023-11-23 21:10:27,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2465 transitions. [2023-11-23 21:10:27,373 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2465 transitions. Word has length 52 [2023-11-23 21:10:27,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:27,375 INFO L495 AbstractCegarLoop]: Abstraction has 1672 states and 2465 transitions. [2023-11-23 21:10:27,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 21:10:27,376 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2465 transitions. [2023-11-23 21:10:27,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-23 21:10:27,382 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:27,382 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:27,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:10:27,383 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:10:27,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:27,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1307030124, now seen corresponding path program 1 times [2023-11-23 21:10:27,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:27,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598349798] [2023-11-23 21:10:27,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:27,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:27,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:27,763 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-23 21:10:27,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:10:27,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598349798] [2023-11-23 21:10:27,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598349798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:27,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:27,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:10:27,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367369986] [2023-11-23 21:10:27,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:27,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:10:27,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:10:27,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:10:27,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:10:27,766 INFO L87 Difference]: Start difference. First operand 1672 states and 2465 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:10:29,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:30,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:31,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:10:33,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:10:33,527 INFO L93 Difference]: Finished difference Result 1678 states and 2470 transitions. [2023-11-23 21:10:33,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:10:33,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 54 [2023-11-23 21:10:33,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:10:33,545 INFO L225 Difference]: With dead ends: 1678 [2023-11-23 21:10:33,545 INFO L226 Difference]: Without dead ends: 1676 [2023-11-23 21:10:33,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:10:33,549 INFO L413 NwaCegarLoop]: 2258 mSDtfsCounter, 2429 mSDsluCounter, 4494 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2439 SdHoareTripleChecker+Valid, 6752 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:10:33,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2439 Valid, 6752 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-11-23 21:10:33,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2023-11-23 21:10:33,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1676. [2023-11-23 21:10:33,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1676 states, 895 states have (on average 1.2324022346368715) internal successors, (1103), 927 states have internal predecessors, (1103), 684 states have call successors, (684), 95 states have call predecessors, (684), 94 states have return successors, (681), 670 states have call predecessors, (681), 681 states have call successors, (681) [2023-11-23 21:10:33,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2468 transitions. [2023-11-23 21:10:33,799 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2468 transitions. Word has length 54 [2023-11-23 21:10:33,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:10:33,800 INFO L495 AbstractCegarLoop]: Abstraction has 1676 states and 2468 transitions. [2023-11-23 21:10:33,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 21:10:33,801 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2468 transitions. [2023-11-23 21:10:33,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-23 21:10:33,802 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:10:33,802 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:10:33,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:10:33,803 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:10:33,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:10:33,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1148469337, now seen corresponding path program 1 times [2023-11-23 21:10:33,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:10:33,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79326614] [2023-11-23 21:10:33,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:10:33,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:10:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:10:34,162 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-23 21:10:34,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:10:34,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79326614] [2023-11-23 21:10:34,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79326614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:10:34,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:10:34,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:10:34,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260489362] [2023-11-23 21:10:34,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:10:34,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:10:34,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:10:34,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:10:34,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:10:34,165 INFO L87 Difference]: Start difference. First operand 1676 states and 2468 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-23 21:10:37,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []