./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_95e09174-89dc-409b-9d9a-1a9208599dca/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95e09174-89dc-409b-9d9a-1a9208599dca/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95e09174-89dc-409b-9d9a-1a9208599dca/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95e09174-89dc-409b-9d9a-1a9208599dca/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95e09174-89dc-409b-9d9a-1a9208599dca/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95e09174-89dc-409b-9d9a-1a9208599dca/bin/utaipan-verify-t7M7D8N6sZ --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 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:18:55,825 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:18:55,953 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95e09174-89dc-409b-9d9a-1a9208599dca/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:18:55,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:18:55,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:18:56,015 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:18:56,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:18:56,019 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:18:56,020 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:18:56,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:18:56,025 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:18:56,026 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:18:56,027 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:18:56,029 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:18:56,029 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:18:56,029 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:18:56,030 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:18:56,030 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:18:56,031 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:18:56,031 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:18:56,031 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:18:56,032 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:18:56,033 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:18:56,034 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:18:56,034 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:18:56,034 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:18:56,035 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:18:56,035 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:18:56,036 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:18:56,036 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:18:56,037 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:18:56,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:18:56,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:18:56,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:18:56,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:18:56,039 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:18:56,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:18:56,039 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:18:56,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:18:56,040 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:18:56,040 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:18:56,040 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:18:56,040 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_95e09174-89dc-409b-9d9a-1a9208599dca/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95e09174-89dc-409b-9d9a-1a9208599dca/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f [2023-11-19 05:18:56,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:18:56,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:18:56,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:18:56,422 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:18:56,423 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:18:56,424 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95e09174-89dc-409b-9d9a-1a9208599dca/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-19 05:18:59,434 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:19:00,141 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:19:00,143 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95e09174-89dc-409b-9d9a-1a9208599dca/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-19 05:19:00,208 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95e09174-89dc-409b-9d9a-1a9208599dca/bin/utaipan-verify-t7M7D8N6sZ/data/0255e0c5b/169bbd34b8ba4b3bb7996d7331dc3f84/FLAG82dec91d4 [2023-11-19 05:19:00,225 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95e09174-89dc-409b-9d9a-1a9208599dca/bin/utaipan-verify-t7M7D8N6sZ/data/0255e0c5b/169bbd34b8ba4b3bb7996d7331dc3f84 [2023-11-19 05:19:00,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:19:00,234 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:19:00,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:19:00,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:19:00,245 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:19:00,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:19:00" (1/1) ... [2023-11-19 05:19:00,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49c34136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:00, skipping insertion in model container [2023-11-19 05:19:00,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:19:00" (1/1) ... [2023-11-19 05:19:00,460 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:19:03,110 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_95e09174-89dc-409b-9d9a-1a9208599dca/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2023-11-19 05:19:03,115 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_95e09174-89dc-409b-9d9a-1a9208599dca/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2023-11-19 05:19:03,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:19:03,295 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:19:03,462 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"); [5255] [2023-11-19 05:19:03,464 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)); [5262] [2023-11-19 05:19:03,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5269] [2023-11-19 05:19:03,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5306-5307] [2023-11-19 05:19:03,467 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"); [5312-5314] [2023-11-19 05:19:03,482 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)); [5455-5456] [2023-11-19 05:19:03,485 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)); [5489-5490] [2023-11-19 05:19:03,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7251] [2023-11-19 05:19:03,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7503] [2023-11-19 05:19:03,855 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_95e09174-89dc-409b-9d9a-1a9208599dca/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2023-11-19 05:19:03,856 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_95e09174-89dc-409b-9d9a-1a9208599dca/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2023-11-19 05:19:03,863 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:19:04,080 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:19:04,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:04 WrapperNode [2023-11-19 05:19:04,081 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:19:04,083 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:19:04,083 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:19:04,083 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:19:04,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:04" (1/1) ... [2023-11-19 05:19:04,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:04" (1/1) ... [2023-11-19 05:19:04,413 INFO L138 Inliner]: procedures = 411, calls = 1792, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 4807 [2023-11-19 05:19:04,413 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:19:04,414 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:19:04,415 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:19:04,415 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:19:04,426 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:04" (1/1) ... [2023-11-19 05:19:04,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:04" (1/1) ... [2023-11-19 05:19:04,474 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:04" (1/1) ... [2023-11-19 05:19:04,475 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:04" (1/1) ... [2023-11-19 05:19:04,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:04" (1/1) ... [2023-11-19 05:19:04,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:04" (1/1) ... [2023-11-19 05:19:04,661 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:04" (1/1) ... [2023-11-19 05:19:04,687 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:04" (1/1) ... [2023-11-19 05:19:04,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:19:04,728 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:19:04,728 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:19:04,729 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:19:04,730 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:04" (1/1) ... [2023-11-19 05:19:04,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:19:04,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95e09174-89dc-409b-9d9a-1a9208599dca/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:19:04,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95e09174-89dc-409b-9d9a-1a9208599dca/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:19:04,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95e09174-89dc-409b-9d9a-1a9208599dca/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:19:04,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_92 [2023-11-19 05:19:04,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_92 [2023-11-19 05:19:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 05:19:04,816 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 05:19:04,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:19:04,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:19:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-19 05:19:04,817 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-19 05:19:04,817 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-19 05:19:04,818 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-19 05:19:04,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:19:04,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:19:04,819 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 05:19:04,819 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 05:19:04,820 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-19 05:19:04,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-19 05:19:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-19 05:19:04,821 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-19 05:19:04,821 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-19 05:19:04,822 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-19 05:19:04,824 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2023-11-19 05:19:04,824 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2023-11-19 05:19:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2023-11-19 05:19:04,825 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2023-11-19 05:19:04,825 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-19 05:19:04,826 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-19 05:19:04,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 05:19:04,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 05:19:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 05:19:04,827 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 05:19:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-19 05:19:04,827 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-19 05:19:04,827 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 05:19:04,827 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 05:19:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 05:19:04,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 05:19:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-11-19 05:19:04,828 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-11-19 05:19:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:19:04,828 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2023-11-19 05:19:04,829 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2023-11-19 05:19:04,829 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 05:19:04,829 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 05:19:04,829 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-19 05:19:04,829 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-19 05:19:04,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:19:04,830 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 05:19:04,830 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 05:19:04,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:19:04,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 05:19:04,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 05:19:04,831 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2023-11-19 05:19:04,831 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2023-11-19 05:19:04,832 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2023-11-19 05:19:04,833 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2023-11-19 05:19:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:19:04,833 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2023-11-19 05:19:04,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2023-11-19 05:19:04,834 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 05:19:04,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 05:19:04,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 05:19:04,834 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 05:19:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 05:19:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 05:19:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 05:19:04,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 05:19:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 05:19:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 05:19:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 05:19:04,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 05:19:04,836 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 05:19:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 05:19:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 05:19:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 05:19:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2023-11-19 05:19:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2023-11-19 05:19:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2023-11-19 05:19:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2023-11-19 05:19:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:19:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 05:19:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 05:19:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 05:19:04,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 05:19:04,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:19:04,840 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2023-11-19 05:19:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2023-11-19 05:19:04,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 05:19:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 05:19:04,840 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 05:19:04,840 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 05:19:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:19:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:19:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:19:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-19 05:19:04,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-19 05:19:04,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-19 05:19:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-19 05:19:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-19 05:19:04,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-19 05:19:04,842 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 05:19:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 05:19:04,843 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 05:19:04,843 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 05:19:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 05:19:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 05:19:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-11-19 05:19:04,844 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-11-19 05:19:04,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:19:04,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:19:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2023-11-19 05:19:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2023-11-19 05:19:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2023-11-19 05:19:04,846 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2023-11-19 05:19:04,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:19:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:19:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:19:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:19:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 05:19:04,847 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 05:19:04,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2023-11-19 05:19:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2023-11-19 05:19:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 05:19:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 05:19:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 05:19:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 05:19:04,848 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-11-19 05:19:04,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-11-19 05:19:04,849 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 05:19:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 05:19:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-19 05:19:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-19 05:19:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2023-11-19 05:19:04,850 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2023-11-19 05:19:04,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2023-11-19 05:19:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2023-11-19 05:19:04,851 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 05:19:04,851 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 05:19:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:19:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 05:19:04,856 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 05:19:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:19:04,857 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-19 05:19:04,858 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-19 05:19:04,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:19:04,859 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:19:04,860 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:19:04,860 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 05:19:04,861 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 05:19:04,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 05:19:04,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 05:19:04,866 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2023-11-19 05:19:04,866 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2023-11-19 05:19:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 05:19:04,867 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 05:19:04,867 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2023-11-19 05:19:04,867 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2023-11-19 05:19:04,868 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2023-11-19 05:19:04,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2023-11-19 05:19:04,868 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2023-11-19 05:19:04,868 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2023-11-19 05:19:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2023-11-19 05:19:04,869 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2023-11-19 05:19:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:19:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:19:04,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:19:04,869 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2023-11-19 05:19:04,869 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2023-11-19 05:19:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2023-11-19 05:19:04,870 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2023-11-19 05:19:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 05:19:04,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 05:19:04,870 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-19 05:19:04,870 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-19 05:19:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-19 05:19:04,871 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-19 05:19:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2023-11-19 05:19:04,871 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2023-11-19 05:19:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:19:04,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 05:19:04,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 05:19:05,728 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:19:05,738 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:19:06,453 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:19:10,140 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 05:19:10,229 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:19:12,696 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:19:12,696 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:19:12,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:19:12 BoogieIcfgContainer [2023-11-19 05:19:12,714 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:19:12,718 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:19:12,718 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:19:12,722 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:19:12,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:19:00" (1/3) ... [2023-11-19 05:19:12,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776ab83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:19:12, skipping insertion in model container [2023-11-19 05:19:12,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:19:04" (2/3) ... [2023-11-19 05:19:12,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776ab83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:19:12, skipping insertion in model container [2023-11-19 05:19:12,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:19:12" (3/3) ... [2023-11-19 05:19:12,726 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2023-11-19 05:19:12,749 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:19:12,749 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:19:12,857 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:19:12,866 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;@66746aef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:19:12,866 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:19:12,877 INFO L276 IsEmpty]: Start isEmpty. Operand has 1199 states, 686 states have (on average 1.2915451895043732) internal successors, (886), 707 states have internal predecessors, (886), 431 states have call successors, (431), 82 states have call predecessors, (431), 81 states have return successors, (425), 419 states have call predecessors, (425), 425 states have call successors, (425) [2023-11-19 05:19:12,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-11-19 05:19:12,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:12,919 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:19:12,919 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:12,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:12,925 INFO L85 PathProgramCache]: Analyzing trace with hash -767818094, now seen corresponding path program 1 times [2023-11-19 05:19:12,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:12,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619119607] [2023-11-19 05:19:12,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:12,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:13,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:14,019 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-19 05:19:14,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:14,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619119607] [2023-11-19 05:19:14,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619119607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:14,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:14,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:19:14,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047100683] [2023-11-19 05:19:14,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:14,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:19:14,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:14,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:19:14,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:19:14,090 INFO L87 Difference]: Start difference. First operand has 1199 states, 686 states have (on average 1.2915451895043732) internal successors, (886), 707 states have internal predecessors, (886), 431 states have call successors, (431), 82 states have call predecessors, (431), 81 states have return successors, (425), 419 states have call predecessors, (425), 425 states have call successors, (425) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-19 05:19:16,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:16,648 INFO L93 Difference]: Finished difference Result 3512 states and 5148 transitions. [2023-11-19 05:19:16,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:19:16,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 159 [2023-11-19 05:19:16,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:16,701 INFO L225 Difference]: With dead ends: 3512 [2023-11-19 05:19:16,702 INFO L226 Difference]: Without dead ends: 2259 [2023-11-19 05:19:16,723 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 [2023-11-19 05:19:16,728 INFO L413 NwaCegarLoop]: 1506 mSDtfsCounter, 1685 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 2958 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:16,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 2958 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-19 05:19:16,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2259 states. [2023-11-19 05:19:16,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2259 to 2255. [2023-11-19 05:19:16,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 1318 states have (on average 1.287556904400607) internal successors, (1697), 1361 states have internal predecessors, (1697), 780 states have call successors, (780), 158 states have call predecessors, (780), 156 states have return successors, (783), 763 states have call predecessors, (783), 780 states have call successors, (783) [2023-11-19 05:19:17,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 3260 transitions. [2023-11-19 05:19:17,023 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 3260 transitions. Word has length 159 [2023-11-19 05:19:17,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:17,026 INFO L495 AbstractCegarLoop]: Abstraction has 2255 states and 3260 transitions. [2023-11-19 05:19:17,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-19 05:19:17,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 3260 transitions. [2023-11-19 05:19:17,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-19 05:19:17,045 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:17,046 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:19:17,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:19:17,046 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:17,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:17,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1125678946, now seen corresponding path program 1 times [2023-11-19 05:19:17,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:17,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699198100] [2023-11-19 05:19:17,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:17,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:17,680 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-19 05:19:17,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:17,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699198100] [2023-11-19 05:19:17,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699198100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:17,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:17,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:19:17,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554584890] [2023-11-19 05:19:17,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:17,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:19:17,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:17,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:19:17,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:19:17,691 INFO L87 Difference]: Start difference. First operand 2255 states and 3260 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-19 05:19:20,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:20,190 INFO L93 Difference]: Finished difference Result 6008 states and 8673 transitions. [2023-11-19 05:19:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:19:20,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 168 [2023-11-19 05:19:20,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:20,225 INFO L225 Difference]: With dead ends: 6008 [2023-11-19 05:19:20,226 INFO L226 Difference]: Without dead ends: 3772 [2023-11-19 05:19:20,241 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 [2023-11-19 05:19:20,243 INFO L413 NwaCegarLoop]: 1542 mSDtfsCounter, 1077 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 2932 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:20,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 2932 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-19 05:19:20,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3772 states. [2023-11-19 05:19:20,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3772 to 3768. [2023-11-19 05:19:20,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3768 states, 2241 states have (on average 1.2891566265060241) internal successors, (2889), 2308 states have internal predecessors, (2889), 1258 states have call successors, (1258), 270 states have call predecessors, (1258), 268 states have return successors, (1261), 1233 states have call predecessors, (1261), 1258 states have call successors, (1261) [2023-11-19 05:19:20,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 5408 transitions. [2023-11-19 05:19:20,538 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 5408 transitions. Word has length 168 [2023-11-19 05:19:20,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:20,540 INFO L495 AbstractCegarLoop]: Abstraction has 3768 states and 5408 transitions. [2023-11-19 05:19:20,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-19 05:19:20,540 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 5408 transitions. [2023-11-19 05:19:20,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-19 05:19:20,546 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:20,547 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:19:20,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:19:20,547 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:20,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:20,548 INFO L85 PathProgramCache]: Analyzing trace with hash 2009473600, now seen corresponding path program 1 times [2023-11-19 05:19:20,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:20,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253245753] [2023-11-19 05:19:20,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:20,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:20,984 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2023-11-19 05:19:20,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:20,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253245753] [2023-11-19 05:19:20,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253245753] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:20,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:20,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:19:20,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764744982] [2023-11-19 05:19:20,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:20,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:19:20,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:20,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:19:20,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:19:20,989 INFO L87 Difference]: Start difference. First operand 3768 states and 5408 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-19 05:19:24,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:24,023 INFO L93 Difference]: Finished difference Result 10662 states and 15255 transitions. [2023-11-19 05:19:24,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:19:24,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 169 [2023-11-19 05:19:24,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:24,100 INFO L225 Difference]: With dead ends: 10662 [2023-11-19 05:19:24,100 INFO L226 Difference]: Without dead ends: 6913 [2023-11-19 05:19:24,129 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 [2023-11-19 05:19:24,136 INFO L413 NwaCegarLoop]: 1431 mSDtfsCounter, 1473 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 2808 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:24,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 2808 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-19 05:19:24,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6913 states. [2023-11-19 05:19:24,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 6908. [2023-11-19 05:19:24,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6908 states, 4084 states have (on average 1.2781586679725758) internal successors, (5220), 4205 states have internal predecessors, (5220), 2312 states have call successors, (2312), 516 states have call predecessors, (2312), 511 states have return successors, (2319), 2262 states have call predecessors, (2319), 2312 states have call successors, (2319) [2023-11-19 05:19:24,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6908 states to 6908 states and 9851 transitions. [2023-11-19 05:19:24,836 INFO L78 Accepts]: Start accepts. Automaton has 6908 states and 9851 transitions. Word has length 169 [2023-11-19 05:19:24,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:24,837 INFO L495 AbstractCegarLoop]: Abstraction has 6908 states and 9851 transitions. [2023-11-19 05:19:24,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-19 05:19:24,838 INFO L276 IsEmpty]: Start isEmpty. Operand 6908 states and 9851 transitions. [2023-11-19 05:19:24,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-11-19 05:19:24,849 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:24,849 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:19:24,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:19:24,850 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:24,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:24,851 INFO L85 PathProgramCache]: Analyzing trace with hash 667186974, now seen corresponding path program 1 times [2023-11-19 05:19:24,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:24,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042523718] [2023-11-19 05:19:24,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:24,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:25,362 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-11-19 05:19:25,362 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:25,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042523718] [2023-11-19 05:19:25,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042523718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:25,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:25,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:19:25,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817087637] [2023-11-19 05:19:25,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:25,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:19:25,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:25,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:19:25,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:19:25,366 INFO L87 Difference]: Start difference. First operand 6908 states and 9851 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-19 05:19:27,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:27,088 INFO L93 Difference]: Finished difference Result 13789 states and 19666 transitions. [2023-11-19 05:19:27,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:19:27,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 224 [2023-11-19 05:19:27,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:27,155 INFO L225 Difference]: With dead ends: 13789 [2023-11-19 05:19:27,155 INFO L226 Difference]: Without dead ends: 6900 [2023-11-19 05:19:27,189 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 [2023-11-19 05:19:27,190 INFO L413 NwaCegarLoop]: 1416 mSDtfsCounter, 1628 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1628 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:27,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1628 Valid, 1416 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 05:19:27,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6900 states. [2023-11-19 05:19:27,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6900 to 6900. [2023-11-19 05:19:27,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6900 states, 4076 states have (on average 1.2708537782139353) internal successors, (5180), 4197 states have internal predecessors, (5180), 2312 states have call successors, (2312), 516 states have call predecessors, (2312), 511 states have return successors, (2319), 2262 states have call predecessors, (2319), 2312 states have call successors, (2319) [2023-11-19 05:19:27,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6900 states to 6900 states and 9811 transitions. [2023-11-19 05:19:27,782 INFO L78 Accepts]: Start accepts. Automaton has 6900 states and 9811 transitions. Word has length 224 [2023-11-19 05:19:27,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:27,784 INFO L495 AbstractCegarLoop]: Abstraction has 6900 states and 9811 transitions. [2023-11-19 05:19:27,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-19 05:19:27,786 INFO L276 IsEmpty]: Start isEmpty. Operand 6900 states and 9811 transitions. [2023-11-19 05:19:27,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-11-19 05:19:27,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:27,796 INFO L195 NwaCegarLoop]: trace histogram [13, 9, 9, 9, 9, 9, 9, 5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:19:27,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:19:27,797 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:27,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:27,797 INFO L85 PathProgramCache]: Analyzing trace with hash 657046662, now seen corresponding path program 1 times [2023-11-19 05:19:27,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:27,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035281744] [2023-11-19 05:19:27,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:27,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:28,235 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2023-11-19 05:19:28,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:28,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035281744] [2023-11-19 05:19:28,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035281744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:28,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:28,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:19:28,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227466633] [2023-11-19 05:19:28,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:28,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:19:28,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:28,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:19:28,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:19:28,239 INFO L87 Difference]: Start difference. First operand 6900 states and 9811 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-19 05:19:31,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:31,739 INFO L93 Difference]: Finished difference Result 16441 states and 23371 transitions. [2023-11-19 05:19:31,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:19:31,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 226 [2023-11-19 05:19:31,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:31,823 INFO L225 Difference]: With dead ends: 16441 [2023-11-19 05:19:31,823 INFO L226 Difference]: Without dead ends: 9560 [2023-11-19 05:19:31,858 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 [2023-11-19 05:19:31,859 INFO L413 NwaCegarLoop]: 2319 mSDtfsCounter, 1082 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 3696 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:31,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 3696 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-19 05:19:31,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9560 states. [2023-11-19 05:19:32,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9560 to 9554. [2023-11-19 05:19:32,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9554 states, 5676 states have (on average 1.2692036645525018) internal successors, (7204), 5835 states have internal predecessors, (7204), 3156 states have call successors, (3156), 726 states have call predecessors, (3156), 721 states have return successors, (3163), 3094 states have call predecessors, (3163), 3156 states have call successors, (3163) [2023-11-19 05:19:32,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9554 states to 9554 states and 13523 transitions. [2023-11-19 05:19:32,649 INFO L78 Accepts]: Start accepts. Automaton has 9554 states and 13523 transitions. Word has length 226 [2023-11-19 05:19:32,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:32,651 INFO L495 AbstractCegarLoop]: Abstraction has 9554 states and 13523 transitions. [2023-11-19 05:19:32,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-19 05:19:32,651 INFO L276 IsEmpty]: Start isEmpty. Operand 9554 states and 13523 transitions. [2023-11-19 05:19:32,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-11-19 05:19:32,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:32,775 INFO L195 NwaCegarLoop]: trace histogram [15, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:19:32,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:19:32,776 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:32,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:32,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2072674005, now seen corresponding path program 1 times [2023-11-19 05:19:32,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:32,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906343405] [2023-11-19 05:19:32,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:32,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:33,874 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 554 trivial. 0 not checked. [2023-11-19 05:19:33,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:33,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906343405] [2023-11-19 05:19:33,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906343405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:33,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:33,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:19:33,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489941457] [2023-11-19 05:19:33,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:33,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:19:33,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:33,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:19:33,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:19:33,879 INFO L87 Difference]: Start difference. First operand 9554 states and 13523 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2023-11-19 05:19:37,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:19:37,177 INFO L93 Difference]: Finished difference Result 21861 states and 30947 transitions. [2023-11-19 05:19:37,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:19:37,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 288 [2023-11-19 05:19:37,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:19:37,251 INFO L225 Difference]: With dead ends: 21861 [2023-11-19 05:19:37,252 INFO L226 Difference]: Without dead ends: 12326 [2023-11-19 05:19:37,292 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 [2023-11-19 05:19:37,293 INFO L413 NwaCegarLoop]: 2337 mSDtfsCounter, 1392 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1392 SdHoareTripleChecker+Valid, 3507 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-19 05:19:37,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1392 Valid, 3507 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-19 05:19:37,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12326 states. [2023-11-19 05:19:38,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12326 to 12320. [2023-11-19 05:19:38,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12320 states, 7347 states have (on average 1.2685449843473526) internal successors, (9320), 7547 states have internal predecessors, (9320), 4034 states have call successors, (4034), 943 states have call predecessors, (4034), 938 states have return successors, (4041), 3958 states have call predecessors, (4041), 4034 states have call successors, (4041) [2023-11-19 05:19:38,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12320 states to 12320 states and 17395 transitions. [2023-11-19 05:19:38,370 INFO L78 Accepts]: Start accepts. Automaton has 12320 states and 17395 transitions. Word has length 288 [2023-11-19 05:19:38,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:19:38,371 INFO L495 AbstractCegarLoop]: Abstraction has 12320 states and 17395 transitions. [2023-11-19 05:19:38,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2023-11-19 05:19:38,371 INFO L276 IsEmpty]: Start isEmpty. Operand 12320 states and 17395 transitions. [2023-11-19 05:19:38,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2023-11-19 05:19:38,387 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:19:38,387 INFO L195 NwaCegarLoop]: trace histogram [12, 10, 10, 9, 9, 9, 9, 9, 9, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:19:38,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 05:19:38,388 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:19:38,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:19:38,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1019449285, now seen corresponding path program 1 times [2023-11-19 05:19:38,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:19:38,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830578335] [2023-11-19 05:19:38,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:19:38,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:19:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:19:38,973 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2023-11-19 05:19:38,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:19:38,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830578335] [2023-11-19 05:19:38,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830578335] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:19:38,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:19:38,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:19:38,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750873428] [2023-11-19 05:19:38,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:19:38,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:19:38,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:19:38,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:19:38,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:19:38,981 INFO L87 Difference]: Start difference. First operand 12320 states and 17395 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53)