./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_d06c0c27-156b-429e-b4c1-4a79f8e7c896/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06c0c27-156b-429e-b4c1-4a79f8e7c896/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06c0c27-156b-429e-b4c1-4a79f8e7c896/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06c0c27-156b-429e-b4c1-4a79f8e7c896/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06c0c27-156b-429e-b4c1-4a79f8e7c896/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06c0c27-156b-429e-b4c1-4a79f8e7c896/bin/utaipan-verify-NcY6lQBIFX --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 246ceae3084839b9b339f99ac0b8607f0cf18f3fcdd140edc02c2b8d150b0ed6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:41:55,582 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:41:55,658 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06c0c27-156b-429e-b4c1-4a79f8e7c896/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:41:55,664 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:41:55,665 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:41:55,692 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:41:55,693 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:41:55,693 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:41:55,694 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:41:55,695 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:41:55,696 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:41:55,696 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:41:55,697 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:41:55,698 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:41:55,698 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:41:55,699 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:41:55,699 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:41:55,700 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:41:55,701 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:41:55,701 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:41:55,702 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:41:55,703 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:41:55,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:41:55,704 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:41:55,705 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:41:55,720 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:41:55,721 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:41:55,721 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:41:55,722 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:41:55,722 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:41:55,723 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:41:55,723 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:41:55,724 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:41:55,724 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:41:55,725 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:41:55,725 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:41:55,725 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:41:55,725 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:41:55,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:41:55,726 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:41:55,726 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:41:55,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:41:55,727 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_d06c0c27-156b-429e-b4c1-4a79f8e7c896/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06c0c27-156b-429e-b4c1-4a79f8e7c896/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 246ceae3084839b9b339f99ac0b8607f0cf18f3fcdd140edc02c2b8d150b0ed6 [2023-11-12 00:41:56,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:41:56,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:41:56,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:41:56,054 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:41:56,055 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:41:56,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06c0c27-156b-429e-b4c1-4a79f8e7c896/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2023-11-12 00:41:59,353 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:41:59,993 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:41:59,995 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06c0c27-156b-429e-b4c1-4a79f8e7c896/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2023-11-12 00:42:00,053 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06c0c27-156b-429e-b4c1-4a79f8e7c896/bin/utaipan-verify-NcY6lQBIFX/data/2670657e8/4c9e11421bfe41289eb69ef34de94c4a/FLAGc6c7781cf [2023-11-12 00:42:00,071 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06c0c27-156b-429e-b4c1-4a79f8e7c896/bin/utaipan-verify-NcY6lQBIFX/data/2670657e8/4c9e11421bfe41289eb69ef34de94c4a [2023-11-12 00:42:00,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:42:00,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:42:00,087 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:42:00,088 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:42:00,094 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:42:00,095 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:42:00" (1/1) ... [2023-11-12 00:42:00,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b6a74a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:00, skipping insertion in model container [2023-11-12 00:42:00,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:42:00" (1/1) ... [2023-11-12 00:42:00,325 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:42:02,464 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_d06c0c27-156b-429e-b4c1-4a79f8e7c896/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i[261928,261941] [2023-11-12 00:42:02,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:42:02,605 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:42:02,743 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"); [5603] [2023-11-12 00:42:02,771 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)); [5934-5935] [2023-11-12 00:42:02,782 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)); [5963-5964] [2023-11-12 00:42:02,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7206] [2023-11-12 00:42:03,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7495] [2023-11-12 00:42:03,092 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_d06c0c27-156b-429e-b4c1-4a79f8e7c896/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i[261928,261941] [2023-11-12 00:42:03,108 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:42:03,284 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:42:03,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03 WrapperNode [2023-11-12 00:42:03,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:42:03,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:42:03,287 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:42:03,287 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:42:03,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:03,408 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:03,605 INFO L138 Inliner]: procedures = 236, calls = 1628, calls flagged for inlining = 116, calls inlined = 113, statements flattened = 5135 [2023-11-12 00:42:03,605 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:42:03,606 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:42:03,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:42:03,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:42:03,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:03,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:03,670 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:03,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:03,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:03,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:03,998 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:04,021 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:04,070 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:42:04,072 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:42:04,073 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:42:04,073 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:42:04,074 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (1/1) ... [2023-11-12 00:42:04,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:42:04,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06c0c27-156b-429e-b4c1-4a79f8e7c896/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:42:04,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06c0c27-156b-429e-b4c1-4a79f8e7c896/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:42:04,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d06c0c27-156b-429e-b4c1-4a79f8e7c896/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:42:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2023-11-12 00:42:04,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2023-11-12 00:42:04,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:42:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:42:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-12 00:42:04,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-12 00:42:04,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:42:04,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:42:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:42:04,165 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:42:04,165 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-12 00:42:04,165 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-12 00:42:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_set_filter_mode [2023-11-12 00:42:04,166 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_set_filter_mode [2023-11-12 00:42:04,166 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-12 00:42:04,166 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-12 00:42:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-12 00:42:04,167 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-12 00:42:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-12 00:42:04,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-12 00:42:04,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:42:04,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:42:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_resume [2023-11-12 00:42:04,168 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_resume [2023-11-12 00:42:04,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 00:42:04,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 00:42:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_write_1bit [2023-11-12 00:42:04,169 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_write_1bit [2023-11-12 00:42:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-12 00:42:04,169 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-12 00:42:04,169 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-11-12 00:42:04,170 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-11-12 00:42:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-12 00:42:04,170 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-12 00:42:04,170 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-12 00:42:04,170 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-12 00:42:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-12 00:42:04,171 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-12 00:42:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:42:04,171 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:42:04,171 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:42:04,172 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:42:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-12 00:42:04,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-12 00:42:04,172 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-12 00:42:04,172 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-12 00:42:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-12 00:42:04,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-12 00:42:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-12 00:42:04,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-12 00:42:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2023-11-12 00:42:04,174 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2023-11-12 00:42:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_reuse_skb [2023-11-12 00:42:04,174 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_reuse_skb [2023-11-12 00:42:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2023-11-12 00:42:04,174 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2023-11-12 00:42:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:42:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-11-12 00:42:04,175 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-11-12 00:42:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:42:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-12 00:42:04,175 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-12 00:42:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-12 00:42:04,176 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-12 00:42:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-12 00:42:04,176 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-12 00:42:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-12 00:42:04,177 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-12 00:42:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 00:42:04,177 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 00:42:04,177 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-12 00:42:04,177 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-12 00:42:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2023-11-12 00:42:04,178 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2023-11-12 00:42:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_read_1bit [2023-11-12 00:42:04,178 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_read_1bit [2023-11-12 00:42:04,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:42:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:42:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:42:04,179 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:42:04,179 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_init_dm910x [2023-11-12 00:42:04,179 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_init_dm910x [2023-11-12 00:42:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-12 00:42:04,180 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-12 00:42:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:42:04,180 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:42:04,180 INFO L130 BoogieDeclarations]: Found specification of procedure poll_dmfe [2023-11-12 00:42:04,181 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_dmfe [2023-11-12 00:42:04,181 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_write [2023-11-12 00:42:04,181 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_write [2023-11-12 00:42:04,181 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-12 00:42:04,181 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-12 00:42:04,182 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2023-11-12 00:42:04,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2023-11-12 00:42:04,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:42:04,182 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-12 00:42:04,182 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-12 00:42:04,183 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2023-11-12 00:42:04,183 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2023-11-12 00:42:04,183 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2023-11-12 00:42:04,183 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2023-11-12 00:42:04,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:42:04,184 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_remove_one [2023-11-12 00:42:04,184 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_remove_one [2023-11-12 00:42:04,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:42:04,184 INFO L130 BoogieDeclarations]: Found specification of procedure dm9132_id_table [2023-11-12 00:42:04,184 INFO L138 BoogieDeclarations]: Found implementation of procedure dm9132_id_table [2023-11-12 00:42:04,185 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-12 00:42:04,185 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-12 00:42:04,185 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-12 00:42:04,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-12 00:42:04,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-12 00:42:04,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-12 00:42:04,186 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_interrupt [2023-11-12 00:42:04,186 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_interrupt [2023-11-12 00:42:04,186 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-12 00:42:04,186 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-12 00:42:04,187 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2023-11-12 00:42:04,187 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2023-11-12 00:42:04,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:42:04,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:42:04,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:42:04,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-12 00:42:04,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-12 00:42:04,188 INFO L130 BoogieDeclarations]: Found specification of procedure cal_CRC [2023-11-12 00:42:04,188 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_CRC [2023-11-12 00:42:04,188 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2023-11-12 00:42:04,189 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2023-11-12 00:42:04,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:42:04,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-12 00:42:04,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-12 00:42:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:42:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2023-11-12 00:42:04,190 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2023-11-12 00:42:04,190 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2023-11-12 00:42:04,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2023-11-12 00:42:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 00:42:04,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 00:42:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:42:04,191 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2023-11-12 00:42:04,192 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2023-11-12 00:42:04,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-12 00:42:04,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-12 00:42:04,192 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-12 00:42:04,192 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-12 00:42:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2023-11-12 00:42:04,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2023-11-12 00:42:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_read [2023-11-12 00:42:04,193 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_read [2023-11-12 00:42:04,193 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-12 00:42:04,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-12 00:42:04,194 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_free_rxbuffer [2023-11-12 00:42:04,194 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_free_rxbuffer [2023-11-12 00:42:04,194 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-12 00:42:04,194 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-12 00:42:04,195 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-12 00:42:04,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-12 00:42:04,195 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-12 00:42:04,195 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-12 00:42:04,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:42:04,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:42:04,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:42:04,971 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:42:04,980 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:42:05,520 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:42:10,004 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:42:14,041 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:42:14,041 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:42:14,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:42:14 BoogieIcfgContainer [2023-11-12 00:42:14,049 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:42:14,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:42:14,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:42:14,058 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:42:14,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:42:00" (1/3) ... [2023-11-12 00:42:14,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640e935d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:42:14, skipping insertion in model container [2023-11-12 00:42:14,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:03" (2/3) ... [2023-11-12 00:42:14,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@640e935d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:42:14, skipping insertion in model container [2023-11-12 00:42:14,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:42:14" (3/3) ... [2023-11-12 00:42:14,063 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2023-11-12 00:42:14,088 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:42:14,088 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:42:14,202 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:42:14,214 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;@73ec82fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:42:14,214 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:42:14,226 INFO L276 IsEmpty]: Start isEmpty. Operand has 1135 states, 692 states have (on average 1.333815028901734) internal successors, (923), 715 states have internal predecessors, (923), 369 states have call successors, (369), 73 states have call predecessors, (369), 72 states have return successors, (362), 356 states have call predecessors, (362), 362 states have call successors, (362) [2023-11-12 00:42:14,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-12 00:42:14,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:42:14,270 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-12 00:42:14,270 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:42:14,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:42:14,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1669816167, now seen corresponding path program 1 times [2023-11-12 00:42:14,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:42:14,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73535640] [2023-11-12 00:42:14,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:42:14,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:42:14,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:42:15,687 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-12 00:42:15,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:42:15,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73535640] [2023-11-12 00:42:15,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73535640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:42:15,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:42:15,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:42:15,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506318708] [2023-11-12 00:42:15,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:42:15,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:42:15,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:42:15,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:42:15,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:42:15,745 INFO L87 Difference]: Start difference. First operand has 1135 states, 692 states have (on average 1.333815028901734) internal successors, (923), 715 states have internal predecessors, (923), 369 states have call successors, (369), 73 states have call predecessors, (369), 72 states have return successors, (362), 356 states have call predecessors, (362), 362 states have call successors, (362) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 00:42:23,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:42:23,240 INFO L93 Difference]: Finished difference Result 3370 states and 4957 transitions. [2023-11-12 00:42:23,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 00:42:23,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 119 [2023-11-12 00:42:23,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:42:23,290 INFO L225 Difference]: With dead ends: 3370 [2023-11-12 00:42:23,291 INFO L226 Difference]: Without dead ends: 2220 [2023-11-12 00:42:23,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:42:23,312 INFO L413 NwaCegarLoop]: 1958 mSDtfsCounter, 1630 mSDsluCounter, 5316 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 7274 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:42:23,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 7274 Invalid, 1116 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-11-12 00:42:23,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2023-11-12 00:42:23,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 2205. [2023-11-12 00:42:23,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2205 states, 1353 states have (on average 1.3215077605321508) internal successors, (1788), 1386 states have internal predecessors, (1788), 710 states have call successors, (710), 142 states have call predecessors, (710), 141 states have return successors, (709), 692 states have call predecessors, (709), 709 states have call successors, (709) [2023-11-12 00:42:23,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 3207 transitions. [2023-11-12 00:42:23,632 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 3207 transitions. Word has length 119 [2023-11-12 00:42:23,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:42:23,636 INFO L495 AbstractCegarLoop]: Abstraction has 2205 states and 3207 transitions. [2023-11-12 00:42:23,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 00:42:23,637 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 3207 transitions. [2023-11-12 00:42:23,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-12 00:42:23,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:42:23,659 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-12 00:42:23,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:42:23,660 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:42:23,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:42:23,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1531270355, now seen corresponding path program 1 times [2023-11-12 00:42:23,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:42:23,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459016672] [2023-11-12 00:42:23,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:42:23,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:42:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:42:24,684 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-12 00:42:24,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:42:24,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459016672] [2023-11-12 00:42:24,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459016672] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:42:24,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:42:24,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:42:24,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088156999] [2023-11-12 00:42:24,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:42:24,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:42:24,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:42:24,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:42:24,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:42:24,692 INFO L87 Difference]: Start difference. First operand 2205 states and 3207 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 00:42:27,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:42:29,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:42:37,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:42:37,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:42:37,786 INFO L93 Difference]: Finished difference Result 4625 states and 6691 transitions. [2023-11-12 00:42:37,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 00:42:37,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 120 [2023-11-12 00:42:37,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:42:37,819 INFO L225 Difference]: With dead ends: 4625 [2023-11-12 00:42:37,820 INFO L226 Difference]: Without dead ends: 3315 [2023-11-12 00:42:37,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-12 00:42:37,832 INFO L413 NwaCegarLoop]: 1577 mSDtfsCounter, 1598 mSDsluCounter, 4527 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 6104 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:42:37,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1602 Valid, 6104 Invalid, 987 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 983 Invalid, 1 Unknown, 0 Unchecked, 12.7s Time] [2023-11-12 00:42:37,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3315 states. [2023-11-12 00:42:38,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3315 to 3295. [2023-11-12 00:42:38,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3295 states, 2025 states have (on average 1.3219753086419752) internal successors, (2677), 2072 states have internal predecessors, (2677), 1058 states have call successors, (1058), 212 states have call predecessors, (1058), 211 states have return successors, (1057), 1034 states have call predecessors, (1057), 1057 states have call successors, (1057) [2023-11-12 00:42:38,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3295 states to 3295 states and 4792 transitions. [2023-11-12 00:42:38,142 INFO L78 Accepts]: Start accepts. Automaton has 3295 states and 4792 transitions. Word has length 120 [2023-11-12 00:42:38,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:42:38,144 INFO L495 AbstractCegarLoop]: Abstraction has 3295 states and 4792 transitions. [2023-11-12 00:42:38,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 00:42:38,148 INFO L276 IsEmpty]: Start isEmpty. Operand 3295 states and 4792 transitions. [2023-11-12 00:42:38,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-12 00:42:38,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:42:38,169 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-11-12 00:42:38,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:42:38,170 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:42:38,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:42:38,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1780855292, now seen corresponding path program 1 times [2023-11-12 00:42:38,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:42:38,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531823520] [2023-11-12 00:42:38,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:42:38,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:42:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:42:38,839 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-11-12 00:42:38,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:42:38,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531823520] [2023-11-12 00:42:38,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531823520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:42:38,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:42:38,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 00:42:38,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072330024] [2023-11-12 00:42:38,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:42:38,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:42:38,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:42:38,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:42:38,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:42:38,851 INFO L87 Difference]: Start difference. First operand 3295 states and 4792 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-12 00:42:42,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []