./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--atm--solos-pci.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/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_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/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--atm--solos-pci.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/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_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/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 e42845ce55dda80b8a38719326b34a62ad9c77fa8c9f846978e486c8165ceba5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:14:00,158 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:14:00,286 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:14:00,294 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:14:00,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:14:00,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:14:00,341 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:14:00,342 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:14:00,343 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:14:00,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:14:00,349 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:14:00,350 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:14:00,350 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:14:00,352 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:14:00,352 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:14:00,353 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:14:00,353 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:14:00,354 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:14:00,354 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:14:00,355 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:14:00,355 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:14:00,356 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:14:00,357 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:14:00,358 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:14:00,358 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:14:00,360 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:14:00,361 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:14:00,361 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:14:00,361 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:14:00,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:14:00,363 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:14:00,363 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:14:00,364 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:14:00,364 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:14:00,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:00,370 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:14:00,370 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:14:00,371 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:14:00,371 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:14:00,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:14:00,371 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:14:00,372 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:14:00,372 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:14:00,372 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:14:00,373 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_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e42845ce55dda80b8a38719326b34a62ad9c77fa8c9f846978e486c8165ceba5 [2023-11-23 21:14:00,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:14:00,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:14:00,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:14:00,782 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:14:00,782 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:14:00,784 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--solos-pci.ko-entry_point.cil.out.i [2023-11-23 21:14:03,919 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:14:04,738 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:14:04,738 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--solos-pci.ko-entry_point.cil.out.i [2023-11-23 21:14:04,808 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/bin/utaipan-verify-mE87zJ7Ire/data/fe73fb4d3/90ca38d819bf46649f9626350add5b94/FLAG4e4f758dc [2023-11-23 21:14:04,830 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/bin/utaipan-verify-mE87zJ7Ire/data/fe73fb4d3/90ca38d819bf46649f9626350add5b94 [2023-11-23 21:14:04,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:14:04,837 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:14:04,841 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:04,841 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:14:04,847 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:14:04,848 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:04" (1/1) ... [2023-11-23 21:14:04,849 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7354d877 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:04, skipping insertion in model container [2023-11-23 21:14:04,849 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:04" (1/1) ... [2023-11-23 21:14:05,042 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:14:07,661 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_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--solos-pci.ko-entry_point.cil.out.i[400474,400487] [2023-11-23 21:14:07,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:07,854 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:14:08,037 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"); [6256] [2023-11-23 21:14:08,040 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)); [6263] [2023-11-23 21:14:08,041 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 %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [6271-6272] [2023-11-23 21:14:08,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [6422] [2023-11-23 21:14:08,053 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6425] [2023-11-23 21:14:08,053 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6428] [2023-11-23 21:14:08,054 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6431] [2023-11-23 21:14:08,055 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; incl %0": "+m" (v->counter)); [6456] [2023-11-23 21:14:08,071 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6757] [2023-11-23 21:14:08,089 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)); [6856-6857] [2023-11-23 21:14:08,092 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)); [6885-6886] [2023-11-23 21:14:08,468 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_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--atm--solos-pci.ko-entry_point.cil.out.i[400474,400487] [2023-11-23 21:14:08,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:08,939 WARN L675 CHandler]: The function strcat is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:08,939 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:08,940 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:08,940 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:08,948 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:14:08,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:08 WrapperNode [2023-11-23 21:14:08,949 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:08,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:08,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:14:08,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:14:08,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:08" (1/1) ... [2023-11-23 21:14:09,106 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:08" (1/1) ... [2023-11-23 21:14:09,426 INFO L138 Inliner]: procedures = 261, calls = 3619, calls flagged for inlining = 118, calls inlined = 108, statements flattened = 8744 [2023-11-23 21:14:09,427 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:09,428 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:14:09,428 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:14:09,428 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:14:09,439 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:08" (1/1) ... [2023-11-23 21:14:09,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:08" (1/1) ... [2023-11-23 21:14:09,475 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:08" (1/1) ... [2023-11-23 21:14:09,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:08" (1/1) ... [2023-11-23 21:14:09,643 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:08" (1/1) ... [2023-11-23 21:14:09,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:08" (1/1) ... [2023-11-23 21:14:09,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:08" (1/1) ... [2023-11-23 21:14:09,735 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:08" (1/1) ... [2023-11-23 21:14:09,785 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:14:09,787 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:14:09,787 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:14:09,787 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:14:09,788 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:08" (1/1) ... [2023-11-23 21:14:09,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:09,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:14:09,826 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:14:09,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe53dfd-0532-4c8d-b01b-5a43ffe6d90b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:14:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-23 21:14:09,872 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2023-11-23 21:14:09,873 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2023-11-23 21:14:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:14:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2023-11-23 21:14:09,873 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2023-11-23 21:14:09,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:14:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 21:14:09,874 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 21:14:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure geos_gpio_store [2023-11-23 21:14:09,874 INFO L138 BoogieDeclarations]: Found implementation of procedure geos_gpio_store [2023-11-23 21:14:09,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:14:09,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:14:09,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:14:09,875 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:14:09,875 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-11-23 21:14:09,875 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-11-23 21:14:09,875 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 21:14:09,876 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 21:14:09,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:14:09,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:14:09,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:14:09,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:14:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 21:14:09,877 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 21:14:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-11-23 21:14:09,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-11-23 21:14:09,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:14:09,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:14:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2023-11-23 21:14:09,878 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2023-11-23 21:14:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 21:14:09,878 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 21:14:09,878 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-23 21:14:09,878 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-23 21:14:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:14:09,879 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:14:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-23 21:14:09,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-23 21:14:09,879 INFO L130 BoogieDeclarations]: Found specification of procedure hardware_show [2023-11-23 21:14:09,879 INFO L138 BoogieDeclarations]: Found implementation of procedure hardware_show [2023-11-23 21:14:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2023-11-23 21:14:09,880 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2023-11-23 21:14:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure print_buffer [2023-11-23 21:14:09,880 INFO L138 BoogieDeclarations]: Found implementation of procedure print_buffer [2023-11-23 21:14:09,880 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:14:09,880 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:14:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-23 21:14:09,881 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-23 21:14:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 21:14:09,881 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 21:14:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:14:09,881 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:14:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:14:09,882 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:14:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:14:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure fpga_queue [2023-11-23 21:14:09,882 INFO L138 BoogieDeclarations]: Found implementation of procedure fpga_queue [2023-11-23 21:14:09,882 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-23 21:14:09,882 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-23 21:14:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure solos_param_show [2023-11-23 21:14:09,883 INFO L138 BoogieDeclarations]: Found implementation of procedure solos_param_show [2023-11-23 21:14:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-23 21:14:09,883 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-23 21:14:09,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 21:14:09,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 21:14:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:14:09,884 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:14:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure atm_remove [2023-11-23 21:14:09,884 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_remove [2023-11-23 21:14:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:14:09,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:14:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:14:09,885 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:14:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-11-23 21:14:09,885 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-11-23 21:14:09,885 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:14:09,885 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:14:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2023-11-23 21:14:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-23 21:14:09,886 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-23 21:14:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:14:09,886 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:14:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 21:14:09,886 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 21:14:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-11-23 21:14:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-11-23 21:14:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:14:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:14:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:14:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 21:14:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 21:14:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure solos_param_store [2023-11-23 21:14:09,888 INFO L138 BoogieDeclarations]: Found implementation of procedure solos_param_store [2023-11-23 21:14:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:14:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 21:14:09,888 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 21:14:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2023-11-23 21:14:09,889 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2023-11-23 21:14:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:14:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 21:14:09,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 21:14:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-23 21:14:09,889 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-23 21:14:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2023-11-23 21:14:09,890 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2023-11-23 21:14:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:14:09,890 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:14:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:14:09,890 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:14:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:14:09,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:14:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-11-23 21:14:09,891 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-11-23 21:14:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:14:09,891 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:14:09,891 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2023-11-23 21:14:09,891 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2023-11-23 21:14:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:14:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-23 21:14:09,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-23 21:14:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-23 21:14:09,892 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-23 21:14:09,892 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-11-23 21:14:09,892 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-11-23 21:14:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2023-11-23 21:14:09,893 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2023-11-23 21:14:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-23 21:14:09,893 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-23 21:14:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:14:09,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:14:09,893 INFO L130 BoogieDeclarations]: Found specification of procedure solos_pop [2023-11-23 21:14:09,894 INFO L138 BoogieDeclarations]: Found implementation of procedure solos_pop [2023-11-23 21:14:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:14:09,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:14:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:14:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:14:09,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:14:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-23 21:14:09,895 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-23 21:14:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-23 21:14:09,895 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-23 21:14:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:14:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-23 21:14:09,896 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-23 21:14:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:14:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:14:09,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 21:14:09,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 21:14:09,897 INFO L130 BoogieDeclarations]: Found specification of procedure psend [2023-11-23 21:14:09,897 INFO L138 BoogieDeclarations]: Found implementation of procedure psend [2023-11-23 21:14:09,897 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-23 21:14:09,897 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-23 21:14:09,897 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-11-23 21:14:09,897 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-11-23 21:14:09,898 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 21:14:09,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 21:14:09,898 INFO L130 BoogieDeclarations]: Found specification of procedure flash_upgrade [2023-11-23 21:14:09,899 INFO L138 BoogieDeclarations]: Found implementation of procedure flash_upgrade [2023-11-23 21:14:09,899 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2023-11-23 21:14:09,899 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2023-11-23 21:14:09,899 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-23 21:14:09,899 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-23 21:14:09,899 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-11-23 21:14:09,899 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-11-23 21:14:09,900 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-23 21:14:09,900 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-23 21:14:09,900 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_signal_change [2023-11-23 21:14:09,900 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_signal_change [2023-11-23 21:14:09,900 INFO L130 BoogieDeclarations]: Found specification of procedure fpga_tx [2023-11-23 21:14:09,900 INFO L138 BoogieDeclarations]: Found implementation of procedure fpga_tx [2023-11-23 21:14:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 21:14:09,901 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 21:14:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 21:14:09,901 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 21:14:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-23 21:14:09,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-23 21:14:09,901 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:14:09,902 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:14:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-23 21:14:09,902 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-23 21:14:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-23 21:14:09,902 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-23 21:14:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:14:09,902 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 21:14:09,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 21:14:09,903 INFO L130 BoogieDeclarations]: Found specification of procedure geos_gpio_show [2023-11-23 21:14:09,903 INFO L138 BoogieDeclarations]: Found implementation of procedure geos_gpio_show [2023-11-23 21:14:09,903 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-23 21:14:09,903 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-23 21:14:09,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:14:09,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:14:10,927 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:14:10,932 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:14:11,417 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:14:19,326 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:14:21,186 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:14:21,186 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:14:21,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:21 BoogieIcfgContainer [2023-11-23 21:14:21,189 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:14:21,193 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:14:21,193 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:14:21,197 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:14:21,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:14:04" (1/3) ... [2023-11-23 21:14:21,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b4f4b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:14:21, skipping insertion in model container [2023-11-23 21:14:21,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:08" (2/3) ... [2023-11-23 21:14:21,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b4f4b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:14:21, skipping insertion in model container [2023-11-23 21:14:21,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:14:21" (3/3) ... [2023-11-23 21:14:21,203 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--atm--solos-pci.ko-entry_point.cil.out.i [2023-11-23 21:14:21,225 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:14:21,225 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:14:21,338 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:14:21,345 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;@1a63fd99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:14:21,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:14:21,359 INFO L276 IsEmpty]: Start isEmpty. Operand has 2427 states, 1533 states have (on average 1.4116112198303978) internal successors, (2164), 1645 states have internal predecessors, (2164), 807 states have call successors, (807), 86 states have call predecessors, (807), 85 states have return successors, (714), 708 states have call predecessors, (714), 714 states have call successors, (714) [2023-11-23 21:14:21,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3004 [2023-11-23 21:14:21,623 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:21,625 INFO L195 NwaCegarLoop]: trace histogram [239, 239, 239, 239, 239, 239, 239, 239, 239, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:14:21,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:14:21,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:21,633 INFO L85 PathProgramCache]: Analyzing trace with hash 227935503, now seen corresponding path program 1 times [2023-11-23 21:14:21,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:14:21,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443421520] [2023-11-23 21:14:21,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:21,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:14:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:31,179 INFO L134 CoverageAnalysis]: Checked inductivity of 285238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285238 trivial. 0 not checked. [2023-11-23 21:14:31,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:14:31,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443421520] [2023-11-23 21:14:31,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443421520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:14:31,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:14:31,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:14:31,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942209978] [2023-11-23 21:14:31,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:14:31,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:14:31,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:14:31,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:14:31,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:14:31,249 INFO L87 Difference]: Start difference. First operand has 2427 states, 1533 states have (on average 1.4116112198303978) internal successors, (2164), 1645 states have internal predecessors, (2164), 807 states have call successors, (807), 86 states have call predecessors, (807), 85 states have return successors, (714), 708 states have call predecessors, (714), 714 states have call successors, (714) Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 2 states have call successors, (269), 2 states have call predecessors, (269), 1 states have return successors, (265), 1 states have call predecessors, (265), 1 states have call successors, (265) [2023-11-23 21:14:33,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:14:34,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:14:34,900 INFO L93 Difference]: Finished difference Result 6204 states and 9661 transitions. [2023-11-23 21:14:34,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:14:34,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 2 states have call successors, (269), 2 states have call predecessors, (269), 1 states have return successors, (265), 1 states have call predecessors, (265), 1 states have call successors, (265) Word has length 3003 [2023-11-23 21:14:34,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:14:34,988 INFO L225 Difference]: With dead ends: 6204 [2023-11-23 21:14:34,988 INFO L226 Difference]: Without dead ends: 4108 [2023-11-23 21:14:35,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:14:35,037 INFO L413 NwaCegarLoop]: 3517 mSDtfsCounter, 3653 mSDsluCounter, 2720 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3653 SdHoareTripleChecker+Valid, 6237 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:14:35,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3653 Valid, 6237 Invalid, 337 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 334 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2023-11-23 21:14:35,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4108 states. [2023-11-23 21:14:35,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4108 to 4104. [2023-11-23 21:14:35,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4104 states, 2778 states have (on average 1.3815694744420446) internal successors, (3838), 2813 states have internal predecessors, (3838), 1158 states have call successors, (1158), 168 states have call predecessors, (1158), 167 states have return successors, (1157), 1144 states have call predecessors, (1157), 1157 states have call successors, (1157) [2023-11-23 21:14:35,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4104 states to 4104 states and 6153 transitions. [2023-11-23 21:14:35,824 INFO L78 Accepts]: Start accepts. Automaton has 4104 states and 6153 transitions. Word has length 3003 [2023-11-23 21:14:35,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:14:35,836 INFO L495 AbstractCegarLoop]: Abstraction has 4104 states and 6153 transitions. [2023-11-23 21:14:35,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 2 states have call successors, (269), 2 states have call predecessors, (269), 1 states have return successors, (265), 1 states have call predecessors, (265), 1 states have call successors, (265) [2023-11-23 21:14:35,837 INFO L276 IsEmpty]: Start isEmpty. Operand 4104 states and 6153 transitions. [2023-11-23 21:14:36,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3005 [2023-11-23 21:14:36,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:14:36,376 INFO L195 NwaCegarLoop]: trace histogram [239, 239, 239, 239, 239, 239, 239, 239, 239, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:14:36,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:14:36,378 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:14:36,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:14:36,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1200403909, now seen corresponding path program 1 times [2023-11-23 21:14:36,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:14:36,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083009217] [2023-11-23 21:14:36,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:14:36,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:14:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:14:44,528 INFO L134 CoverageAnalysis]: Checked inductivity of 285238 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 285238 trivial. 0 not checked. [2023-11-23 21:14:44,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:14:44,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083009217] [2023-11-23 21:14:44,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083009217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:14:44,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:14:44,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:14:44,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998355438] [2023-11-23 21:14:44,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:14:44,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:14:44,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:14:44,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:14:44,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:14:44,543 INFO L87 Difference]: Start difference. First operand 4104 states and 6153 transitions. Second operand has 3 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 2 states have call successors, (269), 2 states have call predecessors, (269), 1 states have return successors, (265), 1 states have call predecessors, (265), 1 states have call successors, (265)