./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_cfa2599b-8723-4cc2-9a23-05054d30d833/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa2599b-8723-4cc2-9a23-05054d30d833/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa2599b-8723-4cc2-9a23-05054d30d833/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa2599b-8723-4cc2-9a23-05054d30d833/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa2599b-8723-4cc2-9a23-05054d30d833/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa2599b-8723-4cc2-9a23-05054d30d833/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:44:11,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:44:11,414 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa2599b-8723-4cc2-9a23-05054d30d833/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:44:11,420 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:44:11,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:44:11,465 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:44:11,466 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:44:11,467 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:44:11,468 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:44:11,474 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:44:11,474 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:44:11,475 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:44:11,476 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:44:11,477 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:44:11,478 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:44:11,479 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:44:11,479 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:44:11,480 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:44:11,480 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:44:11,481 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:44:11,481 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:44:11,482 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:44:11,483 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:44:11,484 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:44:11,484 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:44:11,485 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:44:11,485 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:44:11,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:44:11,486 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:44:11,487 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:44:11,488 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:44:11,488 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:44:11,489 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:44:11,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:44:11,489 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:44:11,490 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:44:11,490 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:44:11,490 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:44:11,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:44:11,491 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:44:11,491 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:44:11,491 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:44:11,492 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_cfa2599b-8723-4cc2-9a23-05054d30d833/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa2599b-8723-4cc2-9a23-05054d30d833/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 [2023-11-12 00:44:11,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:44:11,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:44:11,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:44:11,889 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:44:11,889 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:44:11,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa2599b-8723-4cc2-9a23-05054d30d833/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2023-11-12 00:44:15,231 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:44:15,980 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:44:15,982 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa2599b-8723-4cc2-9a23-05054d30d833/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2023-11-12 00:44:16,055 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa2599b-8723-4cc2-9a23-05054d30d833/bin/utaipan-verify-NcY6lQBIFX/data/c0785a492/6625be1ce2724487b01716c9c0be121b/FLAG809b66e9d [2023-11-12 00:44:16,072 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa2599b-8723-4cc2-9a23-05054d30d833/bin/utaipan-verify-NcY6lQBIFX/data/c0785a492/6625be1ce2724487b01716c9c0be121b [2023-11-12 00:44:16,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:44:16,079 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:44:16,083 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:44:16,083 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:44:16,088 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:44:16,091 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:16" (1/1) ... [2023-11-12 00:44:16,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b43363 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:16, skipping insertion in model container [2023-11-12 00:44:16,092 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:44:16" (1/1) ... [2023-11-12 00:44:16,326 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:44:19,440 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_cfa2599b-8723-4cc2-9a23-05054d30d833/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348095,348108] [2023-11-12 00:44:19,446 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_cfa2599b-8723-4cc2-9a23-05054d30d833/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348264,348277] [2023-11-12 00:44:19,452 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_cfa2599b-8723-4cc2-9a23-05054d30d833/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348431,348444] [2023-11-12 00:44:19,453 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_cfa2599b-8723-4cc2-9a23-05054d30d833/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348599,348612] [2023-11-12 00:44:19,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:44:19,531 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:44:19,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ (" addl %1,%0\n adcl $0xffff,%0": "=r" (sum): "r" (sum << 16), "0" (sum & 4294901760U)); [5513] [2023-11-12 00:44:19,696 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 *)"drivers/net/usb/smsc95xx.c"), "i" (84), "i" (12UL)); [5769-5770] [2023-11-12 00:44:19,699 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 *)"drivers/net/usb/smsc95xx.c"), "i" (111), "i" (12UL)); [5809-5810] [2023-11-12 00:44:19,720 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 *)"drivers/net/usb/smsc95xx.c"), "i" (344), "i" (12UL)); [6161-6162] [2023-11-12 00:44:19,721 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 *)"drivers/net/usb/smsc95xx.c"), "i" (345), "i" (12UL)); [6172-6173] [2023-11-12 00:44:19,723 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 *)"drivers/net/usb/smsc95xx.c"), "i" (382), "i" (12UL)); [6241-6242] [2023-11-12 00:44:19,724 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 *)"drivers/net/usb/smsc95xx.c"), "i" (383), "i" (12UL)); [6252-6253] [2023-11-12 00:44:19,941 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 *)"drivers/net/usb/smsc95xx.c"), "i" (1678), "i" (12UL)); [8606-8607] [2023-11-12 00:44:19,956 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 *)"drivers/net/usb/smsc95xx.c"), "i" (1827), "i" (12UL)); [8880-8881] [2023-11-12 00:44:20,028 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_cfa2599b-8723-4cc2-9a23-05054d30d833/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348095,348108] [2023-11-12 00:44:20,029 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_cfa2599b-8723-4cc2-9a23-05054d30d833/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348264,348277] [2023-11-12 00:44:20,029 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_cfa2599b-8723-4cc2-9a23-05054d30d833/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348431,348444] [2023-11-12 00:44:20,030 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_cfa2599b-8723-4cc2-9a23-05054d30d833/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348599,348612] [2023-11-12 00:44:20,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:44:20,368 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:44:20,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:20 WrapperNode [2023-11-12 00:44:20,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:44:20,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:44:20,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:44:20,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:44:20,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:20" (1/1) ... [2023-11-12 00:44:20,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:20" (1/1) ... [2023-11-12 00:44:20,760 INFO L138 Inliner]: procedures = 391, calls = 3073, calls flagged for inlining = 180, calls inlined = 165, statements flattened = 7435 [2023-11-12 00:44:20,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:44:20,762 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:44:20,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:44:20,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:44:20,772 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:20" (1/1) ... [2023-11-12 00:44:20,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:20" (1/1) ... [2023-11-12 00:44:20,804 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:20" (1/1) ... [2023-11-12 00:44:20,805 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:20" (1/1) ... [2023-11-12 00:44:21,143 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:20" (1/1) ... [2023-11-12 00:44:21,181 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:20" (1/1) ... [2023-11-12 00:44:21,216 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:20" (1/1) ... [2023-11-12 00:44:21,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:20" (1/1) ... [2023-11-12 00:44:21,283 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:44:21,284 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:44:21,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:44:21,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:44:21,285 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:20" (1/1) ... [2023-11-12 00:44:21,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:44:21,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa2599b-8723-4cc2-9a23-05054d30d833/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:44:21,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa2599b-8723-4cc2-9a23-05054d30d833/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:44:21,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfa2599b-8723-4cc2-9a23-05054d30d833/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:44:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:44:21,354 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:44:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2023-11-12 00:44:21,354 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2023-11-12 00:44:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_link_reset [2023-11-12 00:44:21,355 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_link_reset [2023-11-12 00:44:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:44:21,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:44:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_crc [2023-11-12 00:44:21,355 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_crc [2023-11-12 00:44:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ethtool_getregslen [2023-11-12 00:44:21,356 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ethtool_getregslen [2023-11-12 00:44:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_write [2023-11-12 00:44:21,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_write [2023-11-12 00:44:21,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:44:21,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-12 00:44:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2023-11-12 00:44:21,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2023-11-12 00:44:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_nopm [2023-11-12 00:44:21,357 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_nopm [2023-11-12 00:44:21,357 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-12 00:44:21,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-12 00:44:21,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc95xx_driver_exit_6_2 [2023-11-12 00:44:21,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc95xx_driver_exit_6_2 [2023-11-12 00:44:21,358 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enable_phy_wakeup_interrupts [2023-11-12 00:44:21,358 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enable_phy_wakeup_interrupts [2023-11-12 00:44:21,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:44:21,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:44:21,359 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2023-11-12 00:44:21,359 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-12 00:44:21,359 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-12 00:44:21,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:44:21,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:44:21,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:44:21,360 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg [2023-11-12 00:44:21,360 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg [2023-11-12 00:44:21,360 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_rx_csum_offload [2023-11-12 00:44:21,360 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_rx_csum_offload [2023-11-12 00:44:21,361 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-12 00:44:21,361 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-12 00:44:21,361 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg_nopm [2023-11-12 00:44:21,361 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg_nopm [2023-11-12 00:44:21,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:44:21,361 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2023-11-12 00:44:21,362 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2023-11-12 00:44:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:44:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:44:21,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:44:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2023-11-12 00:44:21,363 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2023-11-12 00:44:21,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:44:21,363 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2023-11-12 00:44:21,363 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2023-11-12 00:44:21,363 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write_nopm [2023-11-12 00:44:21,363 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write_nopm [2023-11-12 00:44:21,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:44:21,364 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:44:21,364 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ethtool_get_eeprom_len [2023-11-12 00:44:21,364 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ethtool_get_eeprom_len [2023-11-12 00:44:21,364 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2023-11-12 00:44:21,365 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-11-12 00:44:21,365 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-11-12 00:44:21,365 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2023-11-12 00:44:21,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:44:21,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-12 00:44:21,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:44:21,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-12 00:44:21,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-12 00:44:21,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 00:44:21,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 00:44:21,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:44:21,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:44:21,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:44:21,367 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-12 00:44:21,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-12 00:44:21,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:44:21,367 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_start_rx_path [2023-11-12 00:44:21,367 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_start_rx_path [2023-11-12 00:44:21,368 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:44:21,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:44:21,368 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2023-11-12 00:44:21,368 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2023-11-12 00:44:21,368 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_write_reg [2023-11-12 00:44:21,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_write_reg [2023-11-12 00:44:21,368 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_features [2023-11-12 00:44:21,369 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_features [2023-11-12 00:44:21,369 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-12 00:44:21,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-12 00:44:21,369 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_wait_eeprom [2023-11-12 00:44:21,369 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_wait_eeprom [2023-11-12 00:44:21,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:44:21,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:44:21,370 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_read_reg [2023-11-12 00:44:21,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_read_reg [2023-11-12 00:44:21,370 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-12 00:44:21,370 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-12 00:44:21,370 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-12 00:44:21,370 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-12 00:44:21,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:44:21,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:44:21,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:44:21,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:44:21,371 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-11-12 00:44:21,371 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-11-12 00:44:21,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:44:21,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-12 00:44:21,372 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_reset [2023-11-12 00:44:21,372 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_reset [2023-11-12 00:44:21,372 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2023-11-12 00:44:21,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2023-11-12 00:44:21,373 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2023-11-12 00:44:21,373 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2023-11-12 00:44:21,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mac_cr_lock_of_smsc95xx_priv [2023-11-12 00:44:21,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mac_cr_lock_of_smsc95xx_priv [2023-11-12 00:44:21,373 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg [2023-11-12 00:44:21,373 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg [2023-11-12 00:44:21,373 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 00:44:21,374 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 00:44:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 00:44:21,374 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 00:44:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write [2023-11-12 00:44:21,374 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write [2023-11-12 00:44:21,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:44:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-12 00:44:21,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-12 00:44:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:44:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend1 [2023-11-12 00:44:21,375 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend1 [2023-11-12 00:44:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend2 [2023-11-12 00:44:21,376 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend2 [2023-11-12 00:44:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_eeprom [2023-11-12 00:44:21,376 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_eeprom [2023-11-12 00:44:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_multicast [2023-11-12 00:44:21,376 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_multicast [2023-11-12 00:44:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:44:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_start_offset [2023-11-12 00:44:21,377 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_start_offset [2023-11-12 00:44:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2023-11-12 00:44:21,377 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2023-11-12 00:44:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 00:44:21,377 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 00:44:21,378 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-12 00:44:21,378 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-12 00:44:21,378 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-12 00:44:21,378 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-12 00:44:21,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:44:21,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:44:21,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 00:44:21,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 00:44:21,379 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read [2023-11-12 00:44:21,379 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read [2023-11-12 00:44:21,379 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_phy_wait_not_busy [2023-11-12 00:44:21,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_phy_wait_not_busy [2023-11-12 00:44:21,380 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2023-11-12 00:44:21,380 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2023-11-12 00:44:21,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2023-11-12 00:44:21,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2023-11-12 00:44:21,380 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_async [2023-11-12 00:44:21,380 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_async [2023-11-12 00:44:21,380 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:44:21,381 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:44:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read_nopm [2023-11-12 00:44:21,381 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read_nopm [2023-11-12 00:44:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_resume [2023-11-12 00:44:21,381 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_resume [2023-11-12 00:44:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:44:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-11-12 00:44:21,382 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-11-12 00:44:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:44:21,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:44:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2023-11-12 00:44:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_read [2023-11-12 00:44:21,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_read [2023-11-12 00:44:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_eeprom_confirm_not_busy [2023-11-12 00:44:21,383 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_eeprom_confirm_not_busy [2023-11-12 00:44:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:44:21,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:44:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:44:21,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:44:21,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:44:22,173 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:44:22,177 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:44:22,426 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:44:31,972 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:44:32,084 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:44:36,179 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:44:36,179 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:44:36,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:36 BoogieIcfgContainer [2023-11-12 00:44:36,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:44:36,189 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:44:36,189 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:44:36,193 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:44:36,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:44:16" (1/3) ... [2023-11-12 00:44:36,195 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@edb8dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:44:36, skipping insertion in model container [2023-11-12 00:44:36,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:44:20" (2/3) ... [2023-11-12 00:44:36,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@edb8dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:44:36, skipping insertion in model container [2023-11-12 00:44:36,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:44:36" (3/3) ... [2023-11-12 00:44:36,197 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2023-11-12 00:44:36,219 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:44:36,220 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-12 00:44:36,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:44:36,330 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;@50de51bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:44:36,331 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-12 00:44:36,343 INFO L276 IsEmpty]: Start isEmpty. Operand has 1533 states, 971 states have (on average 1.37178166838311) internal successors, (1332), 977 states have internal predecessors, (1332), 480 states have call successors, (480), 80 states have call predecessors, (480), 79 states have return successors, (473), 473 states have call predecessors, (473), 473 states have call successors, (473) [2023-11-12 00:44:36,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-11-12 00:44:36,392 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:44:36,394 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:44:36,394 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:44:36,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:44:36,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1711068205, now seen corresponding path program 1 times [2023-11-12 00:44:36,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:44:36,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835768539] [2023-11-12 00:44:36,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:44:36,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:44:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:44:37,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1263 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1263 trivial. 0 not checked. [2023-11-12 00:44:37,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:44:37,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835768539] [2023-11-12 00:44:37,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835768539] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:44:37,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:44:37,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:44:37,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100162294] [2023-11-12 00:44:37,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:44:37,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:44:37,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:44:37,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:44:37,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:44:37,561 INFO L87 Difference]: Start difference. First operand has 1533 states, 971 states have (on average 1.37178166838311) internal successors, (1332), 977 states have internal predecessors, (1332), 480 states have call successors, (480), 80 states have call predecessors, (480), 79 states have return successors, (473), 473 states have call predecessors, (473), 473 states have call successors, (473) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-12 00:44:41,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:43,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:45,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:47,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:49,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:51,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:54,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:56,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:57,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:44:59,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:45:01,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:45:02,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:45:02,032 INFO L93 Difference]: Finished difference Result 4444 states and 6688 transitions. [2023-11-12 00:45:02,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:45:02,035 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 205 [2023-11-12 00:45:02,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:45:02,078 INFO L225 Difference]: With dead ends: 4444 [2023-11-12 00:45:02,078 INFO L226 Difference]: Without dead ends: 2937 [2023-11-12 00:45:02,094 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 [2023-11-12 00:45:02,097 INFO L413 NwaCegarLoop]: 1972 mSDtfsCounter, 2136 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 9 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:45:02,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 3898 Invalid, 663 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 644 Invalid, 10 Unknown, 0 Unchecked, 24.1s Time] [2023-11-12 00:45:02,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2023-11-12 00:45:02,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 2933. [2023-11-12 00:45:02,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2933 states, 1882 states have (on average 1.369287991498406) internal successors, (2577), 1893 states have internal predecessors, (2577), 894 states have call successors, (894), 155 states have call predecessors, (894), 154 states have return successors, (890), 890 states have call predecessors, (890), 890 states have call successors, (890) [2023-11-12 00:45:02,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2933 states to 2933 states and 4361 transitions. [2023-11-12 00:45:02,556 INFO L78 Accepts]: Start accepts. Automaton has 2933 states and 4361 transitions. Word has length 205 [2023-11-12 00:45:02,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:45:02,562 INFO L495 AbstractCegarLoop]: Abstraction has 2933 states and 4361 transitions. [2023-11-12 00:45:02,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-12 00:45:02,563 INFO L276 IsEmpty]: Start isEmpty. Operand 2933 states and 4361 transitions. [2023-11-12 00:45:02,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-12 00:45:02,579 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:45:02,580 INFO L195 NwaCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:45:02,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:45:02,581 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-12 00:45:02,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:45:02,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1837317805, now seen corresponding path program 1 times [2023-11-12 00:45:02,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:45:02,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792837325] [2023-11-12 00:45:02,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:45:02,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:45:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:45:03,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2023-11-12 00:45:03,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:45:03,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792837325] [2023-11-12 00:45:03,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792837325] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:45:03,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:45:03,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:45:03,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298977801] [2023-11-12 00:45:03,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:45:03,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:45:03,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:45:03,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:45:03,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:45:03,167 INFO L87 Difference]: Start difference. First operand 2933 states and 4361 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21)