./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--icplus--ipg.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efff7d41-87aa-4e55-a12f-3063f20a804f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efff7d41-87aa-4e55-a12f-3063f20a804f/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efff7d41-87aa-4e55-a12f-3063f20a804f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efff7d41-87aa-4e55-a12f-3063f20a804f/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efff7d41-87aa-4e55-a12f-3063f20a804f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efff7d41-87aa-4e55-a12f-3063f20a804f/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:21:45,939 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:21:46,123 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efff7d41-87aa-4e55-a12f-3063f20a804f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:21:46,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:21:46,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:21:46,176 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:21:46,177 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:21:46,177 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:21:46,179 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:21:46,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:21:46,184 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:21:46,185 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:21:46,185 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:21:46,187 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:21:46,187 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:21:46,188 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:21:46,188 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:21:46,189 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:21:46,189 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:21:46,190 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:21:46,190 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:21:46,191 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:21:46,192 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:21:46,192 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:21:46,193 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:21:46,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:21:46,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:21:46,194 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:21:46,195 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:21:46,195 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:21:46,196 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:21:46,197 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:21:46,197 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:21:46,197 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:21:46,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:46,198 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:21:46,198 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:21:46,198 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:21:46,199 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:21:46,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:21:46,199 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:21:46,200 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:21:46,200 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:21:46,200 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:21:46,201 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_efff7d41-87aa-4e55-a12f-3063f20a804f/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efff7d41-87aa-4e55-a12f-3063f20a804f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce [2023-11-23 21:21:46,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:21:46,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:21:46,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:21:46,520 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:21:46,521 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:21:46,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efff7d41-87aa-4e55-a12f-3063f20a804f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2023-11-23 21:21:50,213 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:21:50,874 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:21:50,875 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efff7d41-87aa-4e55-a12f-3063f20a804f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2023-11-23 21:21:50,923 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efff7d41-87aa-4e55-a12f-3063f20a804f/bin/utaipan-verify-mE87zJ7Ire/data/ea7edad35/e7ccd9f0d0744bf997cb01d0680487fe/FLAG12b4c5f35 [2023-11-23 21:21:50,941 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efff7d41-87aa-4e55-a12f-3063f20a804f/bin/utaipan-verify-mE87zJ7Ire/data/ea7edad35/e7ccd9f0d0744bf997cb01d0680487fe [2023-11-23 21:21:50,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:21:50,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:21:50,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:21:50,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:21:50,966 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:21:50,967 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:21:50" (1/1) ... [2023-11-23 21:21:50,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fb99a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:50, skipping insertion in model container [2023-11-23 21:21:50,969 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:21:50" (1/1) ... [2023-11-23 21:21:51,139 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:21:53,855 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_efff7d41-87aa-4e55-a12f-3063f20a804f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2023-11-23 21:21:53,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:21:54,017 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:21:54,163 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"); [5577] [2023-11-23 21:21:54,165 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)); [5584] [2023-11-23 21:21:54,198 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)); [5925-5926] [2023-11-23 21:21:54,200 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)); [5954-5955] [2023-11-23 21:21:54,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7805] [2023-11-23 21:21:54,516 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_efff7d41-87aa-4e55-a12f-3063f20a804f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2023-11-23 21:21:54,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:21:54,791 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:21:54,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54 WrapperNode [2023-11-23 21:21:54,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:21:54,794 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:21:54,794 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:21:54,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:21:54,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:54,936 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,206 INFO L138 Inliner]: procedures = 262, calls = 1371, calls flagged for inlining = 122, calls inlined = 117, statements flattened = 4033 [2023-11-23 21:21:55,206 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:21:55,207 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:21:55,208 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:21:55,208 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:21:55,221 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,275 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,505 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,549 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,626 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:21:55,628 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:21:55,629 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:21:55,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:21:55,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:55,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:55,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efff7d41-87aa-4e55-a12f-3063f20a804f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:21:55,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efff7d41-87aa-4e55-a12f-3063f20a804f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:21:55,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efff7d41-87aa-4e55-a12f-3063f20a804f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:21:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2023-11-23 21:21:55,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2023-11-23 21:21:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-11-23 21:21:55,839 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-11-23 21:21:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:21:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:21:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:21:55,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:21:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2023-11-23 21:21:55,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2023-11-23 21:21:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:21:55,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:21:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:21:55,841 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:21:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset_after_host_error [2023-11-23 21:21:55,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset_after_host_error [2023-11-23 21:21:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:21:55,841 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:21:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:21:55,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:21:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:21:55,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:21:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 21:21:55,842 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 21:21:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2023-11-23 21:21:55,842 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2023-11-23 21:21:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:21:55,843 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:21:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:21:55,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:21:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-11-23 21:21:55,843 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-11-23 21:21:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-23 21:21:55,844 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-23 21:21:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2023-11-23 21:21:55,844 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2023-11-23 21:21:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:21:55,844 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:21:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2023-11-23 21:21:55,844 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2023-11-23 21:21:55,845 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2023-11-23 21:21:55,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2023-11-23 21:21:55,845 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2023-11-23 21:21:55,845 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2023-11-23 21:21:55,845 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:21:55,845 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:21:55,846 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-23 21:21:55,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-23 21:21:55,846 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:21:55,846 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:21:55,846 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-23 21:21:55,846 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-23 21:21:55,846 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2023-11-23 21:21:55,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2023-11-23 21:21:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2023-11-23 21:21:55,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2023-11-23 21:21:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2023-11-23 21:21:55,847 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2023-11-23 21:21:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:21:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 21:21:55,848 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 21:21:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-11-23 21:21:55,848 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-11-23 21:21:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2023-11-23 21:21:55,848 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2023-11-23 21:21:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:21:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-23 21:21:55,849 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-23 21:21:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 21:21:55,849 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 21:21:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-23 21:21:55,849 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-23 21:21:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 21:21:55,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 21:21:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2023-11-23 21:21:55,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2023-11-23 21:21:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-23 21:21:55,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-23 21:21:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2023-11-23 21:21:55,851 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2023-11-23 21:21:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:21:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:21:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:21:55,851 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:21:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2023-11-23 21:21:55,851 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2023-11-23 21:21:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 21:21:55,852 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 21:21:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:21:55,852 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:21:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:21:55,852 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:21:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-23 21:21:55,852 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-23 21:21:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:21:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-23 21:21:55,853 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-23 21:21:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:21:55,853 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:21:55,853 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2023-11-23 21:21:55,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2023-11-23 21:21:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2023-11-23 21:21:55,854 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2023-11-23 21:21:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2023-11-23 21:21:55,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2023-11-23 21:21:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:21:55,854 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioctl [2023-11-23 21:21:55,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioctl [2023-11-23 21:21:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-23 21:21:55,855 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-23 21:21:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:21:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:21:55,855 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:21:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:21:55,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:21:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:21:55,856 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:21:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:21:55,856 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:21:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:21:55,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:21:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2023-11-23 21:21:55,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2023-11-23 21:21:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-23 21:21:55,857 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-23 21:21:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:21:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-23 21:21:55,857 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-23 21:21:55,857 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-23 21:21:55,857 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-23 21:21:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-23 21:21:55,858 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-23 21:21:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:21:55,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:21:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2023-11-23 21:21:55,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2023-11-23 21:21:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:21:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:21:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2023-11-23 21:21:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2023-11-23 21:21:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:21:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2023-11-23 21:21:55,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2023-11-23 21:21:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:21:55,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:21:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2023-11-23 21:21:55,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2023-11-23 21:21:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:21:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:21:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:21:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:21:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 21:21:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 21:21:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2023-11-23 21:21:55,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2023-11-23 21:21:55,861 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2023-11-23 21:21:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2023-11-23 21:21:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2023-11-23 21:21:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2023-11-23 21:21:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2023-11-23 21:21:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2023-11-23 21:21:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-23 21:21:55,862 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-23 21:21:55,862 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 21:21:55,863 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 21:21:55,863 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2023-11-23 21:21:55,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2023-11-23 21:21:55,863 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-23 21:21:55,863 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-23 21:21:55,863 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2023-11-23 21:21:55,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2023-11-23 21:21:55,863 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-23 21:21:55,864 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-23 21:21:55,864 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_change_mtu [2023-11-23 21:21:55,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_change_mtu [2023-11-23 21:21:55,864 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:21:55,864 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:21:55,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:21:55,864 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2023-11-23 21:21:55,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2023-11-23 21:21:55,865 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2023-11-23 21:21:55,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2023-11-23 21:21:55,865 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-11-23 21:21:55,865 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-11-23 21:21:55,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:21:55,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:21:56,673 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:21:56,682 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:21:57,868 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:22:03,401 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:22:06,362 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:22:06,362 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:22:06,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:06 BoogieIcfgContainer [2023-11-23 21:22:06,365 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:22:06,369 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:22:06,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:22:06,373 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:22:06,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:21:50" (1/3) ... [2023-11-23 21:22:06,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65120f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:22:06, skipping insertion in model container [2023-11-23 21:22:06,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54" (2/3) ... [2023-11-23 21:22:06,377 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65120f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:22:06, skipping insertion in model container [2023-11-23 21:22:06,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:22:06" (3/3) ... [2023-11-23 21:22:06,378 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2023-11-23 21:22:06,402 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:22:06,403 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:22:06,517 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:22:06,526 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;@40ace7c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:22:06,527 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:22:06,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 1158 states, 695 states have (on average 1.306474820143885) internal successors, (908), 730 states have internal predecessors, (908), 379 states have call successors, (379), 85 states have call predecessors, (379), 84 states have return successors, (371), 369 states have call predecessors, (371), 371 states have call successors, (371) [2023-11-23 21:22:06,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 21:22:06,589 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:06,590 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:06,591 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:22:06,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:06,599 INFO L85 PathProgramCache]: Analyzing trace with hash -447635931, now seen corresponding path program 1 times [2023-11-23 21:22:06,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:06,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128680061] [2023-11-23 21:22:06,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:06,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:07,696 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-23 21:22:07,696 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:07,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128680061] [2023-11-23 21:22:07,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128680061] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:07,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:07,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:22:07,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600980534] [2023-11-23 21:22:07,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:07,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:22:07,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:07,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:22:07,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:22:07,755 INFO L87 Difference]: Start difference. First operand has 1158 states, 695 states have (on average 1.306474820143885) internal successors, (908), 730 states have internal predecessors, (908), 379 states have call successors, (379), 85 states have call predecessors, (379), 84 states have return successors, (371), 369 states have call predecessors, (371), 371 states have call successors, (371) Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 21:22:12,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:22:15,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:15,560 INFO L93 Difference]: Finished difference Result 3391 states and 4917 transitions. [2023-11-23 21:22:15,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:22:15,566 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 93 [2023-11-23 21:22:15,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:15,616 INFO L225 Difference]: With dead ends: 3391 [2023-11-23 21:22:15,616 INFO L226 Difference]: Without dead ends: 2223 [2023-11-23 21:22:15,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:22:15,641 INFO L413 NwaCegarLoop]: 1462 mSDtfsCounter, 1562 mSDsluCounter, 4347 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 5809 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:15,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1566 Valid, 5809 Invalid, 810 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 806 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2023-11-23 21:22:15,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2023-11-23 21:22:15,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2209. [2023-11-23 21:22:15,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 1333 states have (on average 1.2918229557389347) internal successors, (1722), 1384 states have internal predecessors, (1722), 711 states have call successors, (711), 166 states have call predecessors, (711), 164 states have return successors, (712), 700 states have call predecessors, (712), 710 states have call successors, (712) [2023-11-23 21:22:15,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3145 transitions. [2023-11-23 21:22:15,936 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3145 transitions. Word has length 93 [2023-11-23 21:22:15,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:15,937 INFO L495 AbstractCegarLoop]: Abstraction has 2209 states and 3145 transitions. [2023-11-23 21:22:15,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 21:22:15,938 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3145 transitions. [2023-11-23 21:22:15,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-23 21:22:15,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:15,954 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:15,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:22:15,954 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:22:15,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:15,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1166836574, now seen corresponding path program 1 times [2023-11-23 21:22:15,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:15,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87693178] [2023-11-23 21:22:15,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:15,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:16,686 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-23 21:22:16,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:16,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87693178] [2023-11-23 21:22:16,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87693178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:16,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:16,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:22:16,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676920623] [2023-11-23 21:22:16,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:16,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:22:16,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:16,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:22:16,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:22:16,692 INFO L87 Difference]: Start difference. First operand 2209 states and 3145 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 21:22:20,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:22:24,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:24,011 INFO L93 Difference]: Finished difference Result 4962 states and 7040 transitions. [2023-11-23 21:22:24,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:22:24,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 95 [2023-11-23 21:22:24,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:24,051 INFO L225 Difference]: With dead ends: 4962 [2023-11-23 21:22:24,052 INFO L226 Difference]: Without dead ends: 3302 [2023-11-23 21:22:24,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:22:24,067 INFO L413 NwaCegarLoop]: 1598 mSDtfsCounter, 1533 mSDsluCounter, 4595 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 6193 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:24,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1537 Valid, 6193 Invalid, 838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 834 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2023-11-23 21:22:24,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3302 states. [2023-11-23 21:22:24,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3302 to 3283. [2023-11-23 21:22:24,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 1985 states have (on average 1.292191435768262) internal successors, (2565), 2058 states have internal predecessors, (2565), 1052 states have call successors, (1052), 248 states have call predecessors, (1052), 245 states have return successors, (1055), 1038 states have call predecessors, (1055), 1051 states have call successors, (1055) [2023-11-23 21:22:24,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 4672 transitions. [2023-11-23 21:22:24,354 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 4672 transitions. Word has length 95 [2023-11-23 21:22:24,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:24,357 INFO L495 AbstractCegarLoop]: Abstraction has 3283 states and 4672 transitions. [2023-11-23 21:22:24,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 21:22:24,358 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 4672 transitions. [2023-11-23 21:22:24,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-23 21:22:24,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:24,364 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:24,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:22:24,365 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:22:24,377 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:24,378 INFO L85 PathProgramCache]: Analyzing trace with hash -246762496, now seen corresponding path program 1 times [2023-11-23 21:22:24,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:24,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581701032] [2023-11-23 21:22:24,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:24,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:25,126 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-23 21:22:25,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:25,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581701032] [2023-11-23 21:22:25,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581701032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:25,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:25,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:22:25,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528031877] [2023-11-23 21:22:25,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:25,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:22:25,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:25,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:22:25,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:22:25,131 INFO L87 Difference]: Start difference. First operand 3283 states and 4672 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 21:22:29,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:22:33,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:22:33,741 INFO L93 Difference]: Finished difference Result 6041 states and 8569 transitions. [2023-11-23 21:22:33,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:22:33,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 94 [2023-11-23 21:22:33,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:22:33,786 INFO L225 Difference]: With dead ends: 6041 [2023-11-23 21:22:33,786 INFO L226 Difference]: Without dead ends: 3306 [2023-11-23 21:22:33,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:22:33,813 INFO L413 NwaCegarLoop]: 1598 mSDtfsCounter, 1533 mSDsluCounter, 4595 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1537 SdHoareTripleChecker+Valid, 6193 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:22:33,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1537 Valid, 6193 Invalid, 837 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 833 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2023-11-23 21:22:33,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3306 states. [2023-11-23 21:22:34,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3306 to 3287. [2023-11-23 21:22:34,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3287 states, 1989 states have (on average 1.2916038210155858) internal successors, (2569), 2061 states have internal predecessors, (2569), 1051 states have call successors, (1051), 249 states have call predecessors, (1051), 246 states have return successors, (1054), 1038 states have call predecessors, (1054), 1050 states have call successors, (1054) [2023-11-23 21:22:34,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3287 states to 3287 states and 4674 transitions. [2023-11-23 21:22:34,104 INFO L78 Accepts]: Start accepts. Automaton has 3287 states and 4674 transitions. Word has length 94 [2023-11-23 21:22:34,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:22:34,105 INFO L495 AbstractCegarLoop]: Abstraction has 3287 states and 4674 transitions. [2023-11-23 21:22:34,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 21:22:34,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3287 states and 4674 transitions. [2023-11-23 21:22:34,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-23 21:22:34,117 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:22:34,117 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:22:34,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:22:34,118 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:22:34,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:22:34,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1818422109, now seen corresponding path program 1 times [2023-11-23 21:22:34,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:22:34,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761376352] [2023-11-23 21:22:34,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:22:34,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:22:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:22:34,830 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2023-11-23 21:22:34,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:22:34,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761376352] [2023-11-23 21:22:34,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761376352] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:22:34,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:22:34,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:22:34,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884078154] [2023-11-23 21:22:34,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:22:34,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:22:34,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:22:34,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:22:34,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:22:34,836 INFO L87 Difference]: Start difference. First operand 3287 states and 4674 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11)