./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 0e0057cc 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_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/bin/utaipan-verify-SwPr7d2a91/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_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-24 23:18:34,777 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:18:34,866 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:18:34,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:18:34,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:18:34,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:18:34,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:18:34,900 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:18:34,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:18:34,901 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:18:34,902 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:18:34,902 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:18:34,903 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:18:34,903 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:18:34,904 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:18:34,904 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:18:34,905 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:18:34,906 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:18:34,906 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:18:34,907 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:18:34,907 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:18:34,908 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:18:34,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:18:34,910 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:18:34,910 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:18:34,911 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:18:34,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:18:34,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:18:34,912 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:18:34,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:18:34,913 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:18:34,914 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:18:34,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:18:34,915 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:18:34,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:18:34,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:18:34,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:18:34,916 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:18:34,917 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:18:34,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:18:34,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:18:34,918 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:18:34,919 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:18:34,919 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:18:34,920 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_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 [2023-11-24 23:18:35,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:18:35,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:18:35,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:18:35,294 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:18:35,294 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:18:35,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2023-11-24 23:18:38,685 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:18:39,516 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:18:39,517 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2023-11-24 23:18:39,598 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/bin/utaipan-verify-SwPr7d2a91/data/cd62d0374/177888b68eb744b493bc7a4f3ab7ad78/FLAGd2f273f84 [2023-11-24 23:18:39,618 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/bin/utaipan-verify-SwPr7d2a91/data/cd62d0374/177888b68eb744b493bc7a4f3ab7ad78 [2023-11-24 23:18:39,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:18:39,627 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:18:39,631 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:18:39,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:18:39,639 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:18:39,640 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:18:39" (1/1) ... [2023-11-24 23:18:39,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1494c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:39, skipping insertion in model container [2023-11-24 23:18:39,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:18:39" (1/1) ... [2023-11-24 23:18:39,843 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:18:43,193 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_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348095,348108] [2023-11-24 23:18:43,200 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_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348264,348277] [2023-11-24 23:18:43,201 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_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348431,348444] [2023-11-24 23:18:43,202 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_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348599,348612] [2023-11-24 23:18:43,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:18:43,327 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:18:43,503 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] [2023-11-24 23:18:43,518 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] [2023-11-24 23:18:43,521 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] [2023-11-24 23:18:43,544 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] [2023-11-24 23:18:43,545 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] [2023-11-24 23:18:43,551 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] [2023-11-24 23:18:43,552 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] [2023-11-24 23:18:43,663 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] [2023-11-24 23:18:43,681 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] [2023-11-24 23:18:43,804 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_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348095,348108] [2023-11-24 23:18:43,805 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_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348264,348277] [2023-11-24 23:18:43,806 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_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348431,348444] [2023-11-24 23:18:43,807 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_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i[348599,348612] [2023-11-24 23:18:43,817 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:18:44,206 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:18:44,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:44 WrapperNode [2023-11-24 23:18:44,207 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:18:44,209 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:18:44,209 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:18:44,209 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:18:44,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:44" (1/1) ... [2023-11-24 23:18:44,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:44" (1/1) ... [2023-11-24 23:18:44,621 INFO L138 Inliner]: procedures = 391, calls = 3073, calls flagged for inlining = 180, calls inlined = 165, statements flattened = 7587 [2023-11-24 23:18:44,622 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:18:44,623 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:18:44,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:18:44,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:18:44,634 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:44" (1/1) ... [2023-11-24 23:18:44,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:44" (1/1) ... [2023-11-24 23:18:44,672 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:44" (1/1) ... [2023-11-24 23:18:44,673 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:44" (1/1) ... [2023-11-24 23:18:44,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:44" (1/1) ... [2023-11-24 23:18:45,009 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:44" (1/1) ... [2023-11-24 23:18:45,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:44" (1/1) ... [2023-11-24 23:18:45,084 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:44" (1/1) ... [2023-11-24 23:18:45,130 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:18:45,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:18:45,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:18:45,132 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:18:45,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:44" (1/1) ... [2023-11-24 23:18:45,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:18:45,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:18:45,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:18:45,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa7694d4-3c06-4ac0-afcc-1ef19b694b80/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:18:45,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:18:45,200 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:18:45,200 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2023-11-24 23:18:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2023-11-24 23:18:45,201 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_link_reset [2023-11-24 23:18:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_link_reset [2023-11-24 23:18:45,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:18:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:18:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_crc [2023-11-24 23:18:45,202 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_crc [2023-11-24 23:18:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ethtool_getregslen [2023-11-24 23:18:45,202 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ethtool_getregslen [2023-11-24 23:18:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_write [2023-11-24 23:18:45,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_write [2023-11-24 23:18:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-24 23:18:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-24 23:18:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2023-11-24 23:18:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2023-11-24 23:18:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_nopm [2023-11-24 23:18:45,204 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_nopm [2023-11-24 23:18:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-24 23:18:45,204 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-24 23:18:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc95xx_driver_exit_6_2 [2023-11-24 23:18:45,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc95xx_driver_exit_6_2 [2023-11-24 23:18:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enable_phy_wakeup_interrupts [2023-11-24 23:18:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enable_phy_wakeup_interrupts [2023-11-24 23:18:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-24 23:18:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-24 23:18:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2023-11-24 23:18:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-24 23:18:45,206 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-24 23:18:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:18:45,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:18:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:18:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg [2023-11-24 23:18:45,206 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg [2023-11-24 23:18:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_rx_csum_offload [2023-11-24 23:18:45,207 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_rx_csum_offload [2023-11-24 23:18:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-24 23:18:45,207 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-24 23:18:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg_nopm [2023-11-24 23:18:45,207 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg_nopm [2023-11-24 23:18:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:18:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2023-11-24 23:18:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2023-11-24 23:18:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:18:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-24 23:18:45,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-24 23:18:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2023-11-24 23:18:45,209 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2023-11-24 23:18:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:18:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2023-11-24 23:18:45,209 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2023-11-24 23:18:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write_nopm [2023-11-24 23:18:45,210 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write_nopm [2023-11-24 23:18:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:18:45,210 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:18:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ethtool_get_eeprom_len [2023-11-24 23:18:45,211 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ethtool_get_eeprom_len [2023-11-24 23:18:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2023-11-24 23:18:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-11-24 23:18:45,211 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-11-24 23:18:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2023-11-24 23:18:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-24 23:18:45,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-24 23:18:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:18:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-24 23:18:45,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-24 23:18:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-24 23:18:45,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-24 23:18:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:18:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-24 23:18:45,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-24 23:18:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-24 23:18:45,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-24 23:18:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:18:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_start_rx_path [2023-11-24 23:18:45,214 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_start_rx_path [2023-11-24 23:18:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:18:45,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:18:45,215 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2023-11-24 23:18:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2023-11-24 23:18:45,215 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_write_reg [2023-11-24 23:18:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_write_reg [2023-11-24 23:18:45,215 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_features [2023-11-24 23:18:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_features [2023-11-24 23:18:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-24 23:18:45,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-24 23:18:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_wait_eeprom [2023-11-24 23:18:45,216 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_wait_eeprom [2023-11-24 23:18:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:18:45,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:18:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_read_reg [2023-11-24 23:18:45,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_read_reg [2023-11-24 23:18:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-24 23:18:45,217 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-24 23:18:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-24 23:18:45,217 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-24 23:18:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:18:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:18:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:18:45,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:18:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-11-24 23:18:45,218 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-11-24 23:18:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-24 23:18:45,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-24 23:18:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_reset [2023-11-24 23:18:45,219 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_reset [2023-11-24 23:18:45,219 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 [2023-11-24 23:18:45,219 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 [2023-11-24 23:18:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2023-11-24 23:18:45,220 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2023-11-24 23:18:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mac_cr_lock_of_smsc95xx_priv [2023-11-24 23:18:45,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mac_cr_lock_of_smsc95xx_priv [2023-11-24 23:18:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg [2023-11-24 23:18:45,220 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg [2023-11-24 23:18:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-24 23:18:45,221 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-24 23:18:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 23:18:45,221 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 23:18:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write [2023-11-24 23:18:45,221 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write [2023-11-24 23:18:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:18:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-24 23:18:45,222 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-24 23:18:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:18:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend1 [2023-11-24 23:18:45,222 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend1 [2023-11-24 23:18:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend2 [2023-11-24 23:18:45,223 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend2 [2023-11-24 23:18:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_eeprom [2023-11-24 23:18:45,223 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_eeprom [2023-11-24 23:18:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_multicast [2023-11-24 23:18:45,223 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_multicast [2023-11-24 23:18:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:18:45,224 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_start_offset [2023-11-24 23:18:45,224 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_start_offset [2023-11-24 23:18:45,224 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2023-11-24 23:18:45,224 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2023-11-24 23:18:45,224 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-24 23:18:45,224 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-24 23:18:45,225 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-24 23:18:45,225 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-24 23:18:45,225 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-24 23:18:45,225 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-24 23:18:45,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-24 23:18:45,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-24 23:18:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-24 23:18:45,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-24 23:18:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read [2023-11-24 23:18:45,226 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read [2023-11-24 23:18:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_phy_wait_not_busy [2023-11-24 23:18:45,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_phy_wait_not_busy [2023-11-24 23:18:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2023-11-24 23:18:45,227 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2023-11-24 23:18:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_2_4 [2023-11-24 23:18:45,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_2_4 [2023-11-24 23:18:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_async [2023-11-24 23:18:45,227 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_async [2023-11-24 23:18:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-24 23:18:45,228 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-24 23:18:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read_nopm [2023-11-24 23:18:45,228 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read_nopm [2023-11-24 23:18:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_resume [2023-11-24 23:18:45,228 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_resume [2023-11-24 23:18:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:18:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-11-24 23:18:45,229 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-11-24 23:18:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:18:45,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:18:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2023-11-24 23:18:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_read [2023-11-24 23:18:45,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_read [2023-11-24 23:18:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_eeprom_confirm_not_busy [2023-11-24 23:18:45,230 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_eeprom_confirm_not_busy [2023-11-24 23:18:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-24 23:18:45,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-24 23:18:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:18:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-24 23:18:45,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-24 23:18:46,159 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:18:46,163 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:18:46,370 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:18:57,171 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-24 23:18:57,372 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:19:01,340 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:19:01,340 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:19:01,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:01 BoogieIcfgContainer [2023-11-24 23:19:01,344 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:19:01,347 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:19:01,347 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:19:01,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:19:01,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:18:39" (1/3) ... [2023-11-24 23:19:01,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5268ee28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:01, skipping insertion in model container [2023-11-24 23:19:01,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:18:44" (2/3) ... [2023-11-24 23:19:01,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5268ee28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:19:01, skipping insertion in model container [2023-11-24 23:19:01,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:19:01" (3/3) ... [2023-11-24 23:19:01,358 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2023-11-24 23:19:01,383 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:19:01,384 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-24 23:19:01,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:19:01,502 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;@9925b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:19:01,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-24 23:19:01,517 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) [2023-11-24 23:19:01,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-11-24 23:19:01,573 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:01,575 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] [2023-11-24 23:19:01,575 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)] === [2023-11-24 23:19:01,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:01,584 INFO L85 PathProgramCache]: Analyzing trace with hash 479447334, now seen corresponding path program 1 times [2023-11-24 23:19:01,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:01,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66537333] [2023-11-24 23:19:01,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:01,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:02,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1263 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1263 trivial. 0 not checked. [2023-11-24 23:19:02,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:02,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66537333] [2023-11-24 23:19:02,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66537333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:02,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:02,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:19:02,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863122386] [2023-11-24 23:19:02,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:02,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:19:02,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:02,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:19:02,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:19:02,994 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) [2023-11-24 23:19:06,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:08,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:10,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:12,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:15,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:17,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:19,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:21,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:23,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:24,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:26,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:19:27,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:19:27,217 INFO L93 Difference]: Finished difference Result 4444 states and 6688 transitions. [2023-11-24 23:19:27,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:19:27,220 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 [2023-11-24 23:19:27,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:19:27,292 INFO L225 Difference]: With dead ends: 4444 [2023-11-24 23:19:27,293 INFO L226 Difference]: Without dead ends: 2937 [2023-11-24 23:19:27,313 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 [2023-11-24 23:19:27,325 INFO L413 NwaCegarLoop]: 1972 mSDtfsCounter, 2136 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 9 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:19:27,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 3898 Invalid, 662 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 645 Invalid, 8 Unknown, 0 Unchecked, 23.8s Time] [2023-11-24 23:19:27,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2023-11-24 23:19:27,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 2933. [2023-11-24 23:19:27,706 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) [2023-11-24 23:19:27,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2933 states to 2933 states and 4361 transitions. [2023-11-24 23:19:27,753 INFO L78 Accepts]: Start accepts. Automaton has 2933 states and 4361 transitions. Word has length 205 [2023-11-24 23:19:27,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:19:27,760 INFO L495 AbstractCegarLoop]: Abstraction has 2933 states and 4361 transitions. [2023-11-24 23:19:27,760 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) [2023-11-24 23:19:27,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2933 states and 4361 transitions. [2023-11-24 23:19:27,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-24 23:19:27,780 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:19:27,781 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] [2023-11-24 23:19:27,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:19:27,786 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)] === [2023-11-24 23:19:27,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:19:27,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1351209807, now seen corresponding path program 1 times [2023-11-24 23:19:27,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:19:27,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187754278] [2023-11-24 23:19:27,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:19:27,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:19:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:19:28,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1260 trivial. 0 not checked. [2023-11-24 23:19:28,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:19:28,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187754278] [2023-11-24 23:19:28,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187754278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:19:28,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:19:28,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:19:28,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180444629] [2023-11-24 23:19:28,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:19:28,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:19:28,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:19:28,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:19:28,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:19:28,562 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)