./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fadf249-7b51-436f-a446-997b6cd64e1b/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fadf249-7b51-436f-a446-997b6cd64e1b/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fadf249-7b51-436f-a446-997b6cd64e1b/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fadf249-7b51-436f-a446-997b6cd64e1b/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fadf249-7b51-436f-a446-997b6cd64e1b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fadf249-7b51-436f-a446-997b6cd64e1b/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5eb3f0f7fbd0ab57546a0ac02256a38ed05a9424bb7a81ac298c225eddd7bc79 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:32:03,864 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:32:03,985 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fadf249-7b51-436f-a446-997b6cd64e1b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:32:03,998 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:32:03,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:32:04,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:32:04,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:32:04,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:32:04,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:32:04,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:32:04,066 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:32:04,067 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:32:04,067 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:32:04,069 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:32:04,070 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:32:04,070 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:32:04,071 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:32:04,073 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:32:04,074 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:32:04,075 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:32:04,075 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:32:04,076 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:32:04,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:32:04,077 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:32:04,078 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:32:04,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:32:04,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:32:04,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:32:04,086 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:32:04,086 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:32:04,087 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:32:04,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:32:04,087 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:32:04,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:32:04,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:04,088 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:32:04,088 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:32:04,089 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:32:04,089 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:32:04,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:32:04,089 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:32:04,094 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:32:04,094 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:32:04,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:32:04,094 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_2fadf249-7b51-436f-a446-997b6cd64e1b/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fadf249-7b51-436f-a446-997b6cd64e1b/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5eb3f0f7fbd0ab57546a0ac02256a38ed05a9424bb7a81ac298c225eddd7bc79 [2023-11-23 21:32:04,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:32:04,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:32:04,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:32:04,435 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:32:04,436 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:32:04,437 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fadf249-7b51-436f-a446-997b6cd64e1b/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i [2023-11-23 21:32:07,789 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:32:08,415 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:32:08,415 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fadf249-7b51-436f-a446-997b6cd64e1b/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i [2023-11-23 21:32:08,458 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fadf249-7b51-436f-a446-997b6cd64e1b/bin/utaipan-verify-mE87zJ7Ire/data/02e764ac5/64dce66afc9846e4b3d63afec1fce9d7/FLAG5f83b3434 [2023-11-23 21:32:08,474 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fadf249-7b51-436f-a446-997b6cd64e1b/bin/utaipan-verify-mE87zJ7Ire/data/02e764ac5/64dce66afc9846e4b3d63afec1fce9d7 [2023-11-23 21:32:08,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:32:08,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:32:08,486 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:08,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:32:08,494 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:32:08,494 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:08" (1/1) ... [2023-11-23 21:32:08,496 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff0b263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:08, skipping insertion in model container [2023-11-23 21:32:08,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:32:08" (1/1) ... [2023-11-23 21:32:08,663 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:32:09,663 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_2fadf249-7b51-436f-a446-997b6cd64e1b/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i[158290,158303] [2023-11-23 21:32:10,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:11,063 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:32:11,260 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_2fadf249-7b51-436f-a446-997b6cd64e1b/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i[158290,158303] [2023-11-23 21:32:11,262 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)); [5544] [2023-11-23 21:32:11,279 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/7636/dscv_tempdir/dscv/ri/144_2a/drivers/net/usb/smsc95xx.o.c.prepared"), "i" (138), "i" (12UL)); [5757-5758] [2023-11-23 21:32:11,287 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/7636/dscv_tempdir/dscv/ri/144_2a/drivers/net/usb/smsc95xx.o.c.prepared"), "i" (165), "i" (12UL)); [5790-5791] [2023-11-23 21:32:11,298 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/7636/dscv_tempdir/dscv/ri/144_2a/drivers/net/usb/smsc95xx.o.c.prepared"), "i" (398), "i" (12UL)); [6063-6064] [2023-11-23 21:32:11,299 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/7636/dscv_tempdir/dscv/ri/144_2a/drivers/net/usb/smsc95xx.o.c.prepared"), "i" (399), "i" (12UL)); [6071-6072] [2023-11-23 21:32:11,301 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/7636/dscv_tempdir/dscv/ri/144_2a/drivers/net/usb/smsc95xx.o.c.prepared"), "i" (436), "i" (12UL)); [6125-6126] [2023-11-23 21:32:11,302 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/7636/dscv_tempdir/dscv/ri/144_2a/drivers/net/usb/smsc95xx.o.c.prepared"), "i" (437), "i" (12UL)); [6133-6134] [2023-11-23 21:32:11,446 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/7636/dscv_tempdir/dscv/ri/144_2a/drivers/net/usb/smsc95xx.o.c.prepared"), "i" (1732), "i" (12UL)); [8040-8041] [2023-11-23 21:32:11,465 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/7636/dscv_tempdir/dscv/ri/144_2a/drivers/net/usb/smsc95xx.o.c.prepared"), "i" (1877), "i" (12UL)); [8270-8271] [2023-11-23 21:32:11,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:32:11,825 WARN L675 CHandler]: The function __VERIFIER_nondet_u32 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:32:11,834 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:32:11,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:11 WrapperNode [2023-11-23 21:32:11,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:32:11,836 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:11,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:32:11,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:32:11,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:11" (1/1) ... [2023-11-23 21:32:11,972 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:11" (1/1) ... [2023-11-23 21:32:12,246 INFO L138 Inliner]: procedures = 212, calls = 2762, calls flagged for inlining = 92, calls inlined = 92, statements flattened = 7131 [2023-11-23 21:32:12,247 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:32:12,248 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:32:12,248 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:32:12,248 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:32:12,259 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:11" (1/1) ... [2023-11-23 21:32:12,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:11" (1/1) ... [2023-11-23 21:32:12,321 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:11" (1/1) ... [2023-11-23 21:32:12,321 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:11" (1/1) ... [2023-11-23 21:32:12,504 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:11" (1/1) ... [2023-11-23 21:32:12,549 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:11" (1/1) ... [2023-11-23 21:32:12,583 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:11" (1/1) ... [2023-11-23 21:32:12,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:11" (1/1) ... [2023-11-23 21:32:12,654 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:32:12,656 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:32:12,656 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:32:12,656 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:32:12,657 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:11" (1/1) ... [2023-11-23 21:32:12,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:32:12,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fadf249-7b51-436f-a446-997b6cd64e1b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:32:12,695 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fadf249-7b51-436f-a446-997b6cd64e1b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:32:12,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fadf249-7b51-436f-a446-997b6cd64e1b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:32:12,744 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_read_reg [2023-11-23 21:32:12,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_read_reg [2023-11-23 21:32:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-23 21:32:12,745 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-23 21:32:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:32:12,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:32:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:32:12,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:32:12,746 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-11-23 21:32:12,747 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-11-23 21:32:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_reset [2023-11-23 21:32:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_reset [2023-11-23 21:32:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_link_reset [2023-11-23 21:32:12,748 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_link_reset [2023-11-23 21:32:12,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:32:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:32:12,750 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_crc [2023-11-23 21:32:12,750 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_crc [2023-11-23 21:32:12,750 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 [2023-11-23 21:32:12,753 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 [2023-11-23 21:32:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ioctl [2023-11-23 21:32:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ioctl [2023-11-23 21:32:12,753 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_write [2023-11-23 21:32:12,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_write [2023-11-23 21:32:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg [2023-11-23 21:32:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg [2023-11-23 21:32:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:32:12,754 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:32:12,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:32:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:32:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_tx_fixup [2023-11-23 21:32:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_tx_fixup [2023-11-23 21:32:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:32:12,755 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:32:12,755 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:32:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:32:12,756 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_nopm [2023-11-23 21:32:12,756 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_nopm [2023-11-23 21:32:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_change_mtu [2023-11-23 21:32:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_change_mtu [2023-11-23 21:32:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write [2023-11-23 21:32:12,757 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write [2023-11-23 21:32:12,757 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:32:12,758 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:32:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-23 21:32:12,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-23 21:32:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:32:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enable_phy_wakeup_interrupts [2023-11-23 21:32:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enable_phy_wakeup_interrupts [2023-11-23 21:32:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 21:32:12,759 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 21:32:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2023-11-23 21:32:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2023-11-23 21:32:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:32:12,761 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2023-11-23 21:32:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 21:32:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 21:32:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2023-11-23 21:32:12,762 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:32:12,762 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:32:12,763 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend1 [2023-11-23 21:32:12,763 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend1 [2023-11-23 21:32:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend2 [2023-11-23 21:32:12,764 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend2 [2023-11-23 21:32:12,764 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_eeprom [2023-11-23 21:32:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_eeprom [2023-11-23 21:32:12,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:32:12,765 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_multicast [2023-11-23 21:32:12,765 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_multicast [2023-11-23 21:32:12,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:32:12,766 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg [2023-11-23 21:32:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg [2023-11-23 21:32:12,766 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_start_offset [2023-11-23 21:32:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_start_offset [2023-11-23 21:32:12,766 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_rx_csum_offload [2023-11-23 21:32:12,766 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_rx_csum_offload [2023-11-23 21:32:12,767 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2023-11-23 21:32:12,767 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2023-11-23 21:32:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 21:32:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 21:32:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 21:32:12,768 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 21:32:12,768 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 21:32:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 21:32:12,769 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:32:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:32:12,769 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-23 21:32:12,769 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-23 21:32:12,770 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg_nopm [2023-11-23 21:32:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg_nopm [2023-11-23 21:32:12,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:32:12,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 21:32:12,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 21:32:12,770 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2023-11-23 21:32:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2023-11-23 21:32:12,771 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read [2023-11-23 21:32:12,771 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read [2023-11-23 21:32:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:32:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2023-11-23 21:32:12,772 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2023-11-23 21:32:12,772 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_phy_wait_not_busy [2023-11-23 21:32:12,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_phy_wait_not_busy [2023-11-23 21:32:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:32:12,773 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2023-11-23 21:32:12,773 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2023-11-23 21:32:12,774 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2023-11-23 21:32:12,774 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2023-11-23 21:32:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write_nopm [2023-11-23 21:32:12,775 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write_nopm [2023-11-23 21:32:12,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:32:12,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:32:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_async [2023-11-23 21:32:12,776 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_async [2023-11-23 21:32:12,776 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2023-11-23 21:32:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-11-23 21:32:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-11-23 21:32:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2023-11-23 21:32:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:32:12,777 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:32:12,777 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read_nopm [2023-11-23 21:32:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read_nopm [2023-11-23 21:32:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_resume [2023-11-23 21:32:12,778 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_resume [2023-11-23 21:32:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:32:12,778 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-11-23 21:32:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-11-23 21:32:12,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:32:12,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:32:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2023-11-23 21:32:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:32:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_2 [2023-11-23 21:32:12,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_2 [2023-11-23 21:32:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:32:12,780 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_status [2023-11-23 21:32:12,781 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_status [2023-11-23 21:32:12,781 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:32:12,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:32:12,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:32:12,787 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_start_rx_path [2023-11-23 21:32:12,788 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_start_rx_path [2023-11-23 21:32:12,788 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_read [2023-11-23 21:32:12,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_read [2023-11-23 21:32:12,789 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_write_reg [2023-11-23 21:32:12,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_write_reg [2023-11-23 21:32:12,791 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_eeprom_confirm_not_busy [2023-11-23 21:32:12,791 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_eeprom_confirm_not_busy [2023-11-23 21:32:12,792 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_features [2023-11-23 21:32:12,797 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_features [2023-11-23 21:32:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_manage_power [2023-11-23 21:32:12,798 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_manage_power [2023-11-23 21:32:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_rx_fixup [2023-11-23 21:32:12,798 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_rx_fixup [2023-11-23 21:32:12,798 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_wait_eeprom [2023-11-23 21:32:12,798 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_wait_eeprom [2023-11-23 21:32:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:32:12,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:32:12,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:32:13,655 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:32:13,660 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:32:14,160 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:32:21,666 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:32:25,138 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:32:25,138 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:32:25,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:25 BoogieIcfgContainer [2023-11-23 21:32:25,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:32:25,144 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:32:25,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:32:25,147 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:32:25,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:32:08" (1/3) ... [2023-11-23 21:32:25,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7085db21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:25, skipping insertion in model container [2023-11-23 21:32:25,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:32:11" (2/3) ... [2023-11-23 21:32:25,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7085db21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:32:25, skipping insertion in model container [2023-11-23 21:32:25,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:32:25" (3/3) ... [2023-11-23 21:32:25,151 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i [2023-11-23 21:32:25,173 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:32:25,173 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:32:25,260 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:32:25,267 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;@1ba42234, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:32:25,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:32:25,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 1427 states, 933 states have (on average 1.3879957127545552) internal successors, (1295), 949 states have internal predecessors, (1295), 425 states have call successors, (425), 68 states have call predecessors, (425), 67 states have return successors, (419), 419 states have call predecessors, (419), 419 states have call successors, (419) [2023-11-23 21:32:25,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-23 21:32:25,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:25,296 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:25,296 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:25,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:25,302 INFO L85 PathProgramCache]: Analyzing trace with hash 563640402, now seen corresponding path program 1 times [2023-11-23 21:32:25,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:25,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51602473] [2023-11-23 21:32:25,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:25,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:26,382 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-23 21:32:26,382 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:26,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51602473] [2023-11-23 21:32:26,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51602473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:26,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:26,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:32:26,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762617216] [2023-11-23 21:32:26,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:26,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:26,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:26,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:26,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:26,450 INFO L87 Difference]: Start difference. First operand has 1427 states, 933 states have (on average 1.3879957127545552) internal successors, (1295), 949 states have internal predecessors, (1295), 425 states have call successors, (425), 68 states have call predecessors, (425), 67 states have return successors, (419), 419 states have call predecessors, (419), 419 states have call successors, (419) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-23 21:32:29,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:31,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:32,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:34,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:36,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:37,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:41,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:41,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:41,444 INFO L93 Difference]: Finished difference Result 4193 states and 6290 transitions. [2023-11-23 21:32:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:32:41,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 87 [2023-11-23 21:32:41,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:41,493 INFO L225 Difference]: With dead ends: 4193 [2023-11-23 21:32:41,493 INFO L226 Difference]: Without dead ends: 2761 [2023-11-23 21:32:41,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:41,510 INFO L413 NwaCegarLoop]: 1930 mSDtfsCounter, 2040 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 3843 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:41,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2040 Valid, 3843 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 426 Invalid, 2 Unknown, 0 Unchecked, 14.7s Time] [2023-11-23 21:32:41,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2761 states. [2023-11-23 21:32:41,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2761 to 2758. [2023-11-23 21:32:41,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2758 states, 1815 states have (on average 1.3768595041322313) internal successors, (2499), 1826 states have internal predecessors, (2499), 810 states have call successors, (810), 133 states have call predecessors, (810), 132 states have return successors, (804), 804 states have call predecessors, (804), 804 states have call successors, (804) [2023-11-23 21:32:41,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2758 states to 2758 states and 4113 transitions. [2023-11-23 21:32:41,793 INFO L78 Accepts]: Start accepts. Automaton has 2758 states and 4113 transitions. Word has length 87 [2023-11-23 21:32:41,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:41,794 INFO L495 AbstractCegarLoop]: Abstraction has 2758 states and 4113 transitions. [2023-11-23 21:32:41,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-11-23 21:32:41,795 INFO L276 IsEmpty]: Start isEmpty. Operand 2758 states and 4113 transitions. [2023-11-23 21:32:41,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-23 21:32:41,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:41,805 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:41,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:32:41,806 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:41,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:41,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1579975006, now seen corresponding path program 1 times [2023-11-23 21:32:41,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:41,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331996871] [2023-11-23 21:32:41,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:41,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:41,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:42,731 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-11-23 21:32:42,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:42,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331996871] [2023-11-23 21:32:42,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331996871] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:42,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:42,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:32:42,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716755074] [2023-11-23 21:32:42,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:42,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:42,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:42,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:42,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:42,737 INFO L87 Difference]: Start difference. First operand 2758 states and 4113 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-23 21:32:46,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:48,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:49,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:51,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:51,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:32:51,406 INFO L93 Difference]: Finished difference Result 2760 states and 4114 transitions. [2023-11-23 21:32:51,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:32:51,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 96 [2023-11-23 21:32:51,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:32:51,434 INFO L225 Difference]: With dead ends: 2760 [2023-11-23 21:32:51,434 INFO L226 Difference]: Without dead ends: 2757 [2023-11-23 21:32:51,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:51,439 INFO L413 NwaCegarLoop]: 1890 mSDtfsCounter, 2059 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 1890 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:32:51,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2059 Valid, 1890 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-11-23 21:32:51,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2023-11-23 21:32:51,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 2757. [2023-11-23 21:32:51,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2757 states, 1815 states have (on average 1.3763085399449035) internal successors, (2498), 1825 states have internal predecessors, (2498), 809 states have call successors, (809), 133 states have call predecessors, (809), 132 states have return successors, (804), 804 states have call predecessors, (804), 804 states have call successors, (804) [2023-11-23 21:32:51,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2757 states to 2757 states and 4111 transitions. [2023-11-23 21:32:51,717 INFO L78 Accepts]: Start accepts. Automaton has 2757 states and 4111 transitions. Word has length 96 [2023-11-23 21:32:51,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:32:51,720 INFO L495 AbstractCegarLoop]: Abstraction has 2757 states and 4111 transitions. [2023-11-23 21:32:51,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-23 21:32:51,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2757 states and 4111 transitions. [2023-11-23 21:32:51,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-23 21:32:51,726 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:32:51,726 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:32:51,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:32:51,727 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:32:51,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:32:51,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1733794966, now seen corresponding path program 1 times [2023-11-23 21:32:51,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:32:51,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833863695] [2023-11-23 21:32:51,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:32:51,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:32:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:32:52,631 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-11-23 21:32:52,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:32:52,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833863695] [2023-11-23 21:32:52,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833863695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:32:52,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:32:52,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:32:52,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859332636] [2023-11-23 21:32:52,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:32:52,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:32:52,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:32:52,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:32:52,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:32:52,637 INFO L87 Difference]: Start difference. First operand 2757 states and 4111 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-23 21:32:55,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:57,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:32:58,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []