./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_865cdff7-c011-4933-bb71-56765b8f26c5/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_865cdff7-c011-4933-bb71-56765b8f26c5/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_865cdff7-c011-4933-bb71-56765b8f26c5/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_865cdff7-c011-4933-bb71-56765b8f26c5/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_865cdff7-c011-4933-bb71-56765b8f26c5/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_865cdff7-c011-4933-bb71-56765b8f26c5/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 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:21:45,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:21:45,569 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_865cdff7-c011-4933-bb71-56765b8f26c5/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:21:45,577 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:21:45,578 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:21:45,620 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:21:45,621 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:21:45,621 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:21:45,622 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:21:45,627 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:21:45,628 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:21:45,629 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:21:45,630 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:21:45,632 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:21:45,632 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:21:45,633 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:21:45,633 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:21:45,634 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:21:45,634 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:21:45,635 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:21:45,636 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:21:45,636 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:21:45,638 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:21:45,638 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:21:45,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:21:45,639 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:21:45,640 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:21:45,640 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:21:45,641 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:21:45,641 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:21:45,642 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:21:45,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:21:45,643 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:21:45,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:21:45,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:21:45,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:21:45,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:21:45,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:21:45,645 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:21:45,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:21:45,646 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:21:45,646 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:21:45,647 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:21:45,647 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:21:45,648 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_865cdff7-c011-4933-bb71-56765b8f26c5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_865cdff7-c011-4933-bb71-56765b8f26c5/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2023-11-24 23:21:45,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:21:45,996 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:21:46,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:21:46,001 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:21:46,002 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:21:46,003 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_865cdff7-c011-4933-bb71-56765b8f26c5/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-24 23:21:49,166 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:21:49,790 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:21:49,790 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_865cdff7-c011-4933-bb71-56765b8f26c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-24 23:21:49,850 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_865cdff7-c011-4933-bb71-56765b8f26c5/bin/utaipan-verify-SwPr7d2a91/data/8c9916a2f/540c38034e4a4b8eb8fad74305cf1413/FLAG41445f515 [2023-11-24 23:21:49,868 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_865cdff7-c011-4933-bb71-56765b8f26c5/bin/utaipan-verify-SwPr7d2a91/data/8c9916a2f/540c38034e4a4b8eb8fad74305cf1413 [2023-11-24 23:21:49,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:21:49,875 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:21:49,879 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:21:49,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:21:49,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:21:49,885 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:21:49" (1/1) ... [2023-11-24 23:21:49,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a19c887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:49, skipping insertion in model container [2023-11-24 23:21:49,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:21:49" (1/1) ... [2023-11-24 23:21:50,102 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:21:52,857 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_865cdff7-c011-4933-bb71-56765b8f26c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2023-11-24 23:21:52,861 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_865cdff7-c011-4933-bb71-56765b8f26c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2023-11-24 23:21:52,862 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_865cdff7-c011-4933-bb71-56765b8f26c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2023-11-24 23:21:52,863 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_865cdff7-c011-4933-bb71-56765b8f26c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2023-11-24 23:21:52,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:21:52,967 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:21:53,145 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"); [5267] [2023-11-24 23:21:53,148 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)); [5274] [2023-11-24 23:21:53,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5281] [2023-11-24 23:21:53,151 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/d4e00c1/linux-kernel-locking-mutex/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5325-5326] [2023-11-24 23:21:53,151 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"); [5331-5333] [2023-11-24 23:21:53,164 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5529-5530] [2023-11-24 23:21:53,169 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 *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5563-5564] [2023-11-24 23:21:53,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7915] [2023-11-24 23:21:53,404 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_865cdff7-c011-4933-bb71-56765b8f26c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2023-11-24 23:21:53,405 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_865cdff7-c011-4933-bb71-56765b8f26c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2023-11-24 23:21:53,405 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_865cdff7-c011-4933-bb71-56765b8f26c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2023-11-24 23:21:53,406 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_865cdff7-c011-4933-bb71-56765b8f26c5/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2023-11-24 23:21:53,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:21:53,682 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:21:53,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:53 WrapperNode [2023-11-24 23:21:53,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:21:53,685 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:21:53,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:21:53,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:21:53,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:53" (1/1) ... [2023-11-24 23:21:53,829 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:53" (1/1) ... [2023-11-24 23:21:54,085 INFO L138 Inliner]: procedures = 357, calls = 1584, calls flagged for inlining = 198, calls inlined = 187, statements flattened = 4814 [2023-11-24 23:21:54,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:21:54,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:21:54,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:21:54,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:21:54,099 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:53" (1/1) ... [2023-11-24 23:21:54,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:53" (1/1) ... [2023-11-24 23:21:54,131 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:53" (1/1) ... [2023-11-24 23:21:54,132 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:53" (1/1) ... [2023-11-24 23:21:54,301 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:53" (1/1) ... [2023-11-24 23:21:54,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:53" (1/1) ... [2023-11-24 23:21:54,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:53" (1/1) ... [2023-11-24 23:21:54,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:53" (1/1) ... [2023-11-24 23:21:54,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:21:54,451 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:21:54,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:21:54,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:21:54,452 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:53" (1/1) ... [2023-11-24 23:21:54,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:21:54,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_865cdff7-c011-4933-bb71-56765b8f26c5/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:21:54,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_865cdff7-c011-4933-bb71-56765b8f26c5/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:21:54,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_865cdff7-c011-4933-bb71-56765b8f26c5/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:21:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2023-11-24 23:21:54,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2023-11-24 23:21:54,535 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-24 23:21:54,535 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-24 23:21:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:21:54,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:21:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:21:54,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:21:54,537 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-24 23:21:54,538 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-24 23:21:54,538 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2023-11-24 23:21:54,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2023-11-24 23:21:54,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:21:54,539 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:21:54,540 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-24 23:21:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-24 23:21:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:21:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:21:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2023-11-24 23:21:54,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2023-11-24 23:21:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-24 23:21:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-24 23:21:54,544 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-24 23:21:54,544 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-24 23:21:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2023-11-24 23:21:54,545 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2023-11-24 23:21:54,545 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-24 23:21:54,546 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-24 23:21:54,546 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-24 23:21:54,546 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-24 23:21:54,546 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-24 23:21:54,546 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-24 23:21:54,547 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2023-11-24 23:21:54,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2023-11-24 23:21:54,547 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-24 23:21:54,547 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-24 23:21:54,547 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-24 23:21:54,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-24 23:21:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-24 23:21:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-24 23:21:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-24 23:21:54,548 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-24 23:21:54,548 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-24 23:21:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-24 23:21:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2023-11-24 23:21:54,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2023-11-24 23:21:54,549 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2023-11-24 23:21:54,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2023-11-24 23:21:54,551 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2023-11-24 23:21:54,552 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2023-11-24 23:21:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:21:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-24 23:21:54,552 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-24 23:21:54,552 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2023-11-24 23:21:54,553 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2023-11-24 23:21:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:21:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-24 23:21:54,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-24 23:21:54,553 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-24 23:21:54,554 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-24 23:21:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-24 23:21:54,554 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-24 23:21:54,554 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-24 23:21:54,555 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-24 23:21:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:21:54,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:21:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-24 23:21:54,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-24 23:21:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2023-11-24 23:21:54,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2023-11-24 23:21:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-24 23:21:54,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-24 23:21:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2023-11-24 23:21:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2023-11-24 23:21:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:21:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:21:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:21:54,558 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:21:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-24 23:21:54,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-24 23:21:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2023-11-24 23:21:54,558 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2023-11-24 23:21:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-24 23:21:54,559 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-24 23:21:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2023-11-24 23:21:54,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2023-11-24 23:21:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-24 23:21:54,559 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-24 23:21:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-24 23:21:54,560 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-24 23:21:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-24 23:21:54,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-24 23:21:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-24 23:21:54,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-24 23:21:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:21:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-24 23:21:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-24 23:21:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-24 23:21:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-24 23:21:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2023-11-24 23:21:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2023-11-24 23:21:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2023-11-24 23:21:54,563 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2023-11-24 23:21:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2023-11-24 23:21:54,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2023-11-24 23:21:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:21:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-24 23:21:54,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-24 23:21:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-24 23:21:54,565 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-24 23:21:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:21:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-24 23:21:54,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-24 23:21:54,565 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-24 23:21:54,566 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-24 23:21:54,566 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-24 23:21:54,566 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-24 23:21:54,566 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-24 23:21:54,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-24 23:21:54,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:21:54,567 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:21:54,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-24 23:21:54,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-24 23:21:54,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-24 23:21:54,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-24 23:21:54,568 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-24 23:21:54,568 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-24 23:21:54,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-24 23:21:54,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-24 23:21:54,569 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-24 23:21:54,570 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-24 23:21:54,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-24 23:21:54,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-24 23:21:54,571 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-24 23:21:54,574 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-24 23:21:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:21:54,575 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-24 23:21:54,576 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-24 23:21:54,576 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-24 23:21:54,577 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-24 23:21:54,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:21:54,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:21:54,579 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2023-11-24 23:21:54,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2023-11-24 23:21:54,585 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2023-11-24 23:21:54,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2023-11-24 23:21:54,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2023-11-24 23:21:54,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2023-11-24 23:21:54,585 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2023-11-24 23:21:54,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2023-11-24 23:21:54,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:21:54,587 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2023-11-24 23:21:54,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2023-11-24 23:21:54,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-24 23:21:54,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-24 23:21:54,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-24 23:21:54,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-24 23:21:54,588 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2023-11-24 23:21:54,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2023-11-24 23:21:54,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:21:54,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-24 23:21:54,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-24 23:21:54,588 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-24 23:21:54,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-24 23:21:54,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:21:54,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-24 23:21:54,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2023-11-24 23:21:54,589 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-24 23:21:54,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-24 23:21:54,590 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:21:54,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:21:54,590 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2023-11-24 23:21:54,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2023-11-24 23:21:54,590 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:21:54,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:21:54,591 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-24 23:21:54,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-24 23:21:54,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-24 23:21:54,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-24 23:21:54,591 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2023-11-24 23:21:54,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2023-11-24 23:21:54,592 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-24 23:21:54,592 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-24 23:21:54,592 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-24 23:21:54,592 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-24 23:21:54,592 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-24 23:21:54,592 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-24 23:21:54,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-24 23:21:54,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-24 23:21:54,593 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2023-11-24 23:21:54,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2023-11-24 23:21:54,593 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2023-11-24 23:21:54,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2023-11-24 23:21:54,593 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-24 23:21:54,594 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-24 23:21:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-24 23:21:54,594 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-24 23:21:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-24 23:21:54,594 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-24 23:21:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-24 23:21:54,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:21:54,595 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2023-11-24 23:21:54,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2023-11-24 23:21:54,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-24 23:21:54,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-24 23:21:54,595 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2023-11-24 23:21:54,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2023-11-24 23:21:54,596 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-24 23:21:54,596 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-24 23:21:54,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:21:54,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:21:55,394 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:21:55,399 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:21:56,681 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:22:00,651 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-24 23:22:00,813 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:22:03,698 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:22:03,698 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:22:03,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:22:03 BoogieIcfgContainer [2023-11-24 23:22:03,701 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:22:03,704 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:22:03,705 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:22:03,708 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:22:03,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:21:49" (1/3) ... [2023-11-24 23:22:03,711 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5886d56d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:22:03, skipping insertion in model container [2023-11-24 23:22:03,711 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:21:53" (2/3) ... [2023-11-24 23:22:03,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5886d56d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:22:03, skipping insertion in model container [2023-11-24 23:22:03,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:22:03" (3/3) ... [2023-11-24 23:22:03,713 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2023-11-24 23:22:03,742 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:22:03,742 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-24 23:22:03,858 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:22:03,868 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;@65541630, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:22:03,868 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-24 23:22:03,881 INFO L276 IsEmpty]: Start isEmpty. Operand has 1340 states, 784 states have (on average 1.2704081632653061) internal successors, (996), 812 states have internal predecessors, (996), 459 states have call successors, (459), 97 states have call predecessors, (459), 96 states have return successors, (453), 450 states have call predecessors, (453), 453 states have call successors, (453) [2023-11-24 23:22:03,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-24 23:22:03,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:03,905 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:22:03,906 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-24 23:22:03,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:03,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1792399249, now seen corresponding path program 1 times [2023-11-24 23:22:03,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:03,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089625271] [2023-11-24 23:22:03,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:03,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:04,852 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-24 23:22:04,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:04,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089625271] [2023-11-24 23:22:04,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089625271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:04,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:04,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:22:04,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483126552] [2023-11-24 23:22:04,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:04,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:22:04,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:04,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:22:04,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:04,914 INFO L87 Difference]: Start difference. First operand has 1340 states, 784 states have (on average 1.2704081632653061) internal successors, (996), 812 states have internal predecessors, (996), 459 states have call successors, (459), 97 states have call predecessors, (459), 96 states have return successors, (453), 450 states have call predecessors, (453), 453 states have call successors, (453) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-24 23:22:08,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:08,528 INFO L93 Difference]: Finished difference Result 3863 states and 5547 transitions. [2023-11-24 23:22:08,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:22:08,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2023-11-24 23:22:08,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:08,600 INFO L225 Difference]: With dead ends: 3863 [2023-11-24 23:22:08,600 INFO L226 Difference]: Without dead ends: 2526 [2023-11-24 23:22:08,620 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 23:22:08,624 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 1715 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 3194 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:08,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1715 Valid, 3194 Invalid, 590 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-24 23:22:08,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2526 states. [2023-11-24 23:22:08,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2526 to 2507. [2023-11-24 23:22:08,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2507 states, 1462 states have (on average 1.2564979480164158) internal successors, (1837), 1517 states have internal predecessors, (1837), 855 states have call successors, (855), 189 states have call predecessors, (855), 187 states have return successors, (852), 839 states have call predecessors, (852), 851 states have call successors, (852) [2023-11-24 23:22:09,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 3544 transitions. [2023-11-24 23:22:09,013 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 3544 transitions. Word has length 101 [2023-11-24 23:22:09,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:09,016 INFO L495 AbstractCegarLoop]: Abstraction has 2507 states and 3544 transitions. [2023-11-24 23:22:09,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-24 23:22:09,017 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 3544 transitions. [2023-11-24 23:22:09,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-24 23:22:09,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:09,031 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:22:09,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:22:09,032 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-24 23:22:09,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:09,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1381601866, now seen corresponding path program 1 times [2023-11-24 23:22:09,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:09,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377114021] [2023-11-24 23:22:09,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:09,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:09,430 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-24 23:22:09,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:09,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377114021] [2023-11-24 23:22:09,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377114021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:09,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:09,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:22:09,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877253243] [2023-11-24 23:22:09,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:09,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:22:09,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:09,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:22:09,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:09,435 INFO L87 Difference]: Start difference. First operand 2507 states and 3544 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-24 23:22:13,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:13,606 INFO L93 Difference]: Finished difference Result 7408 states and 10467 transitions. [2023-11-24 23:22:13,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:22:13,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 101 [2023-11-24 23:22:13,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:13,662 INFO L225 Difference]: With dead ends: 7408 [2023-11-24 23:22:13,662 INFO L226 Difference]: Without dead ends: 4918 [2023-11-24 23:22:13,679 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 23:22:13,680 INFO L413 NwaCegarLoop]: 1607 mSDtfsCounter, 1789 mSDsluCounter, 1565 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 3172 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:13,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1789 Valid, 3172 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-24 23:22:13,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4918 states. [2023-11-24 23:22:14,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4918 to 4914. [2023-11-24 23:22:14,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4914 states, 2879 states have (on average 1.2546022924626608) internal successors, (3612), 2981 states have internal predecessors, (3612), 1661 states have call successors, (1661), 374 states have call predecessors, (1661), 371 states have return successors, (1659), 1636 states have call predecessors, (1659), 1657 states have call successors, (1659) [2023-11-24 23:22:14,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4914 states to 4914 states and 6932 transitions. [2023-11-24 23:22:14,081 INFO L78 Accepts]: Start accepts. Automaton has 4914 states and 6932 transitions. Word has length 101 [2023-11-24 23:22:14,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:14,082 INFO L495 AbstractCegarLoop]: Abstraction has 4914 states and 6932 transitions. [2023-11-24 23:22:14,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-24 23:22:14,083 INFO L276 IsEmpty]: Start isEmpty. Operand 4914 states and 6932 transitions. [2023-11-24 23:22:14,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-24 23:22:14,089 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:14,089 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:22:14,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:22:14,089 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-24 23:22:14,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:14,100 INFO L85 PathProgramCache]: Analyzing trace with hash 904523371, now seen corresponding path program 1 times [2023-11-24 23:22:14,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:14,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367291686] [2023-11-24 23:22:14,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:14,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-24 23:22:14,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:14,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367291686] [2023-11-24 23:22:14,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367291686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:14,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:14,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:22:14,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134011159] [2023-11-24 23:22:14,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:14,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:22:14,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:14,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:22:14,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:22:14,537 INFO L87 Difference]: Start difference. First operand 4914 states and 6932 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-24 23:22:19,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:19,315 INFO L93 Difference]: Finished difference Result 9608 states and 13546 transitions. [2023-11-24 23:22:19,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:22:19,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2023-11-24 23:22:19,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:19,358 INFO L225 Difference]: With dead ends: 9608 [2023-11-24 23:22:19,358 INFO L226 Difference]: Without dead ends: 4711 [2023-11-24 23:22:19,384 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 23:22:19,388 INFO L413 NwaCegarLoop]: 2028 mSDtfsCounter, 1318 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1318 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:19,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1318 Valid, 3584 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-24 23:22:19,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4711 states. [2023-11-24 23:22:19,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4711 to 4692. [2023-11-24 23:22:19,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4692 states, 2784 states have (on average 1.2507183908045978) internal successors, (3482), 2879 states have internal predecessors, (3482), 1548 states have call successors, (1548), 361 states have call predecessors, (1548), 357 states have return successors, (1545), 1522 states have call predecessors, (1545), 1544 states have call successors, (1545) [2023-11-24 23:22:19,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4692 states to 4692 states and 6575 transitions. [2023-11-24 23:22:19,837 INFO L78 Accepts]: Start accepts. Automaton has 4692 states and 6575 transitions. Word has length 112 [2023-11-24 23:22:19,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:19,840 INFO L495 AbstractCegarLoop]: Abstraction has 4692 states and 6575 transitions. [2023-11-24 23:22:19,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-24 23:22:19,841 INFO L276 IsEmpty]: Start isEmpty. Operand 4692 states and 6575 transitions. [2023-11-24 23:22:19,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-24 23:22:19,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:19,848 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 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] [2023-11-24 23:22:19,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:22:19,848 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-24 23:22:19,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:19,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1850501404, now seen corresponding path program 1 times [2023-11-24 23:22:19,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:19,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834240952] [2023-11-24 23:22:19,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:19,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:20,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:20,929 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-11-24 23:22:20,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:20,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834240952] [2023-11-24 23:22:20,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834240952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:20,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:20,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:22:20,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216233319] [2023-11-24 23:22:20,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:20,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:22:20,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:20,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:22:20,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:22:20,943 INFO L87 Difference]: Start difference. First operand 4692 states and 6575 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-24 23:22:25,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:25,089 INFO L93 Difference]: Finished difference Result 4698 states and 6580 transitions. [2023-11-24 23:22:25,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:22:25,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2023-11-24 23:22:25,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:25,130 INFO L225 Difference]: With dead ends: 4698 [2023-11-24 23:22:25,131 INFO L226 Difference]: Without dead ends: 4696 [2023-11-24 23:22:25,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-24 23:22:25,135 INFO L413 NwaCegarLoop]: 1595 mSDtfsCounter, 1834 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1837 SdHoareTripleChecker+Valid, 4779 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:25,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1837 Valid, 4779 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-24 23:22:25,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4696 states. [2023-11-24 23:22:25,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4696 to 4696. [2023-11-24 23:22:25,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4696 states, 2787 states have (on average 1.250448510943667) internal successors, (3485), 2882 states have internal predecessors, (3485), 1548 states have call successors, (1548), 362 states have call predecessors, (1548), 358 states have return successors, (1545), 1522 states have call predecessors, (1545), 1544 states have call successors, (1545) [2023-11-24 23:22:25,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4696 states to 4696 states and 6578 transitions. [2023-11-24 23:22:25,578 INFO L78 Accepts]: Start accepts. Automaton has 4696 states and 6578 transitions. Word has length 143 [2023-11-24 23:22:25,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:25,580 INFO L495 AbstractCegarLoop]: Abstraction has 4696 states and 6578 transitions. [2023-11-24 23:22:25,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-24 23:22:25,581 INFO L276 IsEmpty]: Start isEmpty. Operand 4696 states and 6578 transitions. [2023-11-24 23:22:25,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-24 23:22:25,587 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:25,587 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 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] [2023-11-24 23:22:25,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:22:25,587 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-24 23:22:25,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:25,588 INFO L85 PathProgramCache]: Analyzing trace with hash -268577635, now seen corresponding path program 1 times [2023-11-24 23:22:25,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:25,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397091997] [2023-11-24 23:22:25,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:25,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:26,267 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-11-24 23:22:26,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:26,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397091997] [2023-11-24 23:22:26,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397091997] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:26,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:26,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:22:26,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66460144] [2023-11-24 23:22:26,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:26,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:22:26,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:26,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:22:26,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:22:26,271 INFO L87 Difference]: Start difference. First operand 4696 states and 6578 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-24 23:22:30,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:22:30,143 INFO L93 Difference]: Finished difference Result 4702 states and 6583 transitions. [2023-11-24 23:22:30,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:22:30,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 148 [2023-11-24 23:22:30,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:22:30,183 INFO L225 Difference]: With dead ends: 4702 [2023-11-24 23:22:30,183 INFO L226 Difference]: Without dead ends: 4700 [2023-11-24 23:22:30,186 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 [2023-11-24 23:22:30,187 INFO L413 NwaCegarLoop]: 1598 mSDtfsCounter, 1829 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 4782 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:22:30,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 4782 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-24 23:22:30,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4700 states. [2023-11-24 23:22:30,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4700 to 4700. [2023-11-24 23:22:30,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4700 states, 2790 states have (on average 1.250179211469534) internal successors, (3488), 2885 states have internal predecessors, (3488), 1548 states have call successors, (1548), 363 states have call predecessors, (1548), 359 states have return successors, (1545), 1522 states have call predecessors, (1545), 1544 states have call successors, (1545) [2023-11-24 23:22:30,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 6581 transitions. [2023-11-24 23:22:30,582 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 6581 transitions. Word has length 148 [2023-11-24 23:22:30,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:22:30,583 INFO L495 AbstractCegarLoop]: Abstraction has 4700 states and 6581 transitions. [2023-11-24 23:22:30,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-24 23:22:30,583 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 6581 transitions. [2023-11-24 23:22:30,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-24 23:22:30,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:22:30,591 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:22:30,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:22:30,592 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-24 23:22:30,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:22:30,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1130322500, now seen corresponding path program 1 times [2023-11-24 23:22:30,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:22:30,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896327749] [2023-11-24 23:22:30,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:22:30,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:22:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:22:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-24 23:22:31,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:22:31,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896327749] [2023-11-24 23:22:31,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896327749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:22:31,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:22:31,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:22:31,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167362868] [2023-11-24 23:22:31,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:22:31,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 23:22:31,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:22:31,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 23:22:31,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:22:31,235 INFO L87 Difference]: Start difference. First operand 4700 states and 6581 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)