./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_400bc596-e1cb-4ed6-b7ac-d43584e8b712/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400bc596-e1cb-4ed6-b7ac-d43584e8b712/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400bc596-e1cb-4ed6-b7ac-d43584e8b712/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400bc596-e1cb-4ed6-b7ac-d43584e8b712/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400bc596-e1cb-4ed6-b7ac-d43584e8b712/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400bc596-e1cb-4ed6-b7ac-d43584e8b712/bin/utaipan-verify-t7M7D8N6sZ --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 0705c7c1097399903dd015d79fa2944ad89b2d381aed5d9e2539b97c330aa424 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:59:03,013 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:59:03,157 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400bc596-e1cb-4ed6-b7ac-d43584e8b712/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:59:03,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:59:03,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:59:03,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:59:03,221 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:59:03,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:59:03,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:59:03,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:59:03,230 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:59:03,232 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:59:03,232 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:59:03,234 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:59:03,235 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:59:03,235 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:59:03,236 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:59:03,236 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:59:03,237 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:59:03,238 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:59:03,238 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:59:03,239 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:59:03,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:59:03,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:59:03,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:59:03,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:59:03,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:59:03,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:59:03,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:59:03,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:59:03,246 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:59:03,246 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:59:03,247 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:59:03,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:03,248 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:59:03,248 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:59:03,248 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:59:03,249 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:59:03,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:59:03,250 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:59:03,250 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:59:03,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:59:03,251 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_400bc596-e1cb-4ed6-b7ac-d43584e8b712/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400bc596-e1cb-4ed6-b7ac-d43584e8b712/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0705c7c1097399903dd015d79fa2944ad89b2d381aed5d9e2539b97c330aa424 [2023-11-19 04:59:03,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:59:03,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:59:03,671 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:59:03,673 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:59:03,673 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:59:03,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400bc596-e1cb-4ed6-b7ac-d43584e8b712/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i [2023-11-19 04:59:07,214 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:59:08,126 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:59:08,128 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400bc596-e1cb-4ed6-b7ac-d43584e8b712/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i [2023-11-19 04:59:08,213 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400bc596-e1cb-4ed6-b7ac-d43584e8b712/bin/utaipan-verify-t7M7D8N6sZ/data/14a16d938/011e6223ccd34de2a0c8abea11f32b12/FLAG542f9b221 [2023-11-19 04:59:08,234 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400bc596-e1cb-4ed6-b7ac-d43584e8b712/bin/utaipan-verify-t7M7D8N6sZ/data/14a16d938/011e6223ccd34de2a0c8abea11f32b12 [2023-11-19 04:59:08,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:59:08,243 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:59:08,247 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:08,247 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:59:08,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:59:08,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:08" (1/1) ... [2023-11-19 04:59:08,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16d534f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:08, skipping insertion in model container [2023-11-19 04:59:08,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:59:08" (1/1) ... [2023-11-19 04:59:08,627 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:59:12,387 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_400bc596-e1cb-4ed6-b7ac-d43584e8b712/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i[351362,351375] [2023-11-19 04:59:12,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:12,459 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:59:12,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5239] [2023-11-19 04:59:12,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5246] [2023-11-19 04:59:12,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5253] [2023-11-19 04:59:12,651 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5385] [2023-11-19 04:59:12,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5393] [2023-11-19 04:59:12,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5400] [2023-11-19 04:59:12,653 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5407] [2023-11-19 04:59:12,662 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/netdevice.h"), "i" (502), "i" (12UL)); [5592-5593] [2023-11-19 04:59:12,662 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5599] [2023-11-19 04:59:12,680 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/ethernet/smsc/smsc911x.c"), "i" (164), "i" (12UL)); [5984-5985] [2023-11-19 04:59:12,684 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/ethernet/smsc/smsc911x.c"), "i" (180), "i" (12UL)); [6013-6014] [2023-11-19 04:59:12,692 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/ethernet/smsc/smsc911x.c"), "i" (210), "i" (12UL)); [6055-6056] [2023-11-19 04:59:12,695 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/ethernet/smsc/smsc911x.c"), "i" (229), "i" (12UL)); [6082-6083] [2023-11-19 04:59:12,705 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/ethernet/smsc/smsc911x.c"), "i" (269), "i" (12UL)); [6163-6164] [2023-11-19 04:59:12,708 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/ethernet/smsc/smsc911x.c"), "i" (303), "i" (12UL)); [6235-6236] [2023-11-19 04:59:12,711 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/ethernet/smsc/smsc911x.c"), "i" (335), "i" (12UL)); [6308-6309] [2023-11-19 04:59:12,713 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/ethernet/smsc/smsc911x.c"), "i" (369), "i" (12UL)); [6381-6382] [2023-11-19 04:59:12,754 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/ethernet/smsc/smsc911x.c"), "i" (811), "i" (12UL)); [7051-7052] [2023-11-19 04:59:12,755 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/ethernet/smsc/smsc911x.c"), "i" (812), "i" (12UL)); [7063-7064] [2023-11-19 04:59:12,828 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8170] [2023-11-19 04:59:12,849 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8473] [2023-11-19 04:59:12,958 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/ethernet/smsc/smsc911x.c"), "i" (2273), "i" (12UL)); [9243-9244] [2023-11-19 04:59:12,959 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/ethernet/smsc/smsc911x.c"), "i" (2275), "i" (12UL)); [9257-9258] [2023-11-19 04:59:12,960 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/ethernet/smsc/smsc911x.c"), "i" (2276), "i" (12UL)); [9269-9270] [2023-11-19 04:59:12,961 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/ethernet/smsc/smsc911x.c"), "i" (2277), "i" (12UL)); [9281-9282] [2023-11-19 04:59:13,121 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_400bc596-e1cb-4ed6-b7ac-d43584e8b712/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i[351362,351375] [2023-11-19 04:59:13,140 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:59:13,529 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:59:13,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:13 WrapperNode [2023-11-19 04:59:13,530 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:59:13,532 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:59:13,533 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:59:13,533 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:59:13,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:13" (1/1) ... [2023-11-19 04:59:13,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:13" (1/1) ... [2023-11-19 04:59:13,988 INFO L138 Inliner]: procedures = 415, calls = 1913, calls flagged for inlining = 249, calls inlined = 236, statements flattened = 6204 [2023-11-19 04:59:13,990 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:59:13,991 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:59:13,991 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:59:13,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:59:14,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:13" (1/1) ... [2023-11-19 04:59:14,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:13" (1/1) ... [2023-11-19 04:59:14,063 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:13" (1/1) ... [2023-11-19 04:59:14,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:13" (1/1) ... [2023-11-19 04:59:14,246 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:13" (1/1) ... [2023-11-19 04:59:14,289 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:13" (1/1) ... [2023-11-19 04:59:14,336 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:13" (1/1) ... [2023-11-19 04:59:14,369 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:13" (1/1) ... [2023-11-19 04:59:14,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:59:14,421 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:59:14,421 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:59:14,421 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:59:14,423 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:13" (1/1) ... [2023-11-19 04:59:14,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:59:14,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400bc596-e1cb-4ed6-b7ac-d43584e8b712/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:59:14,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400bc596-e1cb-4ed6-b7ac-d43584e8b712/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:59:14,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_400bc596-e1cb-4ed6-b7ac-d43584e8b712/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:59:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:59:14,526 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:59:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:59:14,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:59:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 04:59:14,528 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 04:59:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 04:59:14,529 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 04:59:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mii_read [2023-11-19 04:59:14,530 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mii_read [2023-11-19 04:59:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_resume [2023-11-19 04:59:14,531 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_resume [2023-11-19 04:59:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-19 04:59:14,531 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-19 04:59:14,531 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 04:59:14,532 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 04:59:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_drv_probe [2023-11-19 04:59:14,532 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_drv_probe [2023-11-19 04:59:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure no_printk [2023-11-19 04:59:14,532 INFO L138 BoogieDeclarations]: Found implementation of procedure no_printk [2023-11-19 04:59:14,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 04:59:14,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 04:59:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 04:59:14,533 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 04:59:14,533 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-19 04:59:14,533 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-19 04:59:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 04:59:14,534 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 04:59:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:59:14,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:59:14,534 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 04:59:14,535 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 04:59:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_set_multicast_list [2023-11-19 04:59:14,535 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_set_multicast_list [2023-11-19 04:59:14,535 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_set_hw_mac_address [2023-11-19 04:59:14,535 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_set_hw_mac_address [2023-11-19 04:59:14,536 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2023-11-19 04:59:14,536 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2023-11-19 04:59:14,537 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2023-11-19 04:59:14,537 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2023-11-19 04:59:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:59:14,538 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-19 04:59:14,539 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-19 04:59:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_drv_remove [2023-11-19 04:59:14,539 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_drv_remove [2023-11-19 04:59:14,539 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_multicast_update [2023-11-19 04:59:14,539 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_multicast_update [2023-11-19 04:59:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:59:14,540 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:59:14,540 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-19 04:59:14,540 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-19 04:59:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:59:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-19 04:59:14,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-19 04:59:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 04:59:14,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 04:59:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_writefifo [2023-11-19 04:59:14,542 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_writefifo [2023-11-19 04:59:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:59:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 04:59:14,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 04:59:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_irqhandler [2023-11-19 04:59:14,544 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_irqhandler [2023-11-19 04:59:14,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:59:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:59:14,545 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:59:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-19 04:59:14,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-19 04:59:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 04:59:14,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 04:59:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_disable_resources [2023-11-19 04:59:14,546 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_disable_resources [2023-11-19 04:59:14,546 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_get_rxstatus [2023-11-19 04:59:14,546 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_get_rxstatus [2023-11-19 04:59:14,547 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_read [2023-11-19 04:59:14,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_read [2023-11-19 04:59:14,547 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_getregslen [2023-11-19 04:59:14,547 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_getregslen [2023-11-19 04:59:14,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:59:14,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 04:59:14,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 04:59:14,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 04:59:14,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 04:59:14,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-19 04:59:14,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-19 04:59:14,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2023-11-19 04:59:14,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2023-11-19 04:59:14,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:59:14,550 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-11-19 04:59:14,551 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-11-19 04:59:14,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 04:59:14,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 04:59:14,552 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 04:59:14,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 04:59:14,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:59:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:59:14,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:59:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 04:59:14,553 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 04:59:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:59:14,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:59:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mii_write [2023-11-19 04:59:14,554 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mii_write [2023-11-19 04:59:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_complete [2023-11-19 04:59:14,554 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_complete [2023-11-19 04:59:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-19 04:59:14,555 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-19 04:59:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:59:14,555 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:59:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 04:59:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 04:59:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32_rep [2023-11-19 04:59:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32_rep [2023-11-19 04:59:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-11-19 04:59:14,557 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-11-19 04:59:14,557 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource_byname [2023-11-19 04:59:14,559 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource_byname [2023-11-19 04:59:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 04:59:14,559 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 04:59:14,559 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 04:59:14,559 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 04:59:14,560 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-11-19 04:59:14,560 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-11-19 04:59:14,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:59:14,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:59:14,565 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 04:59:14,566 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 04:59:14,566 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-19 04:59:14,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-19 04:59:14,568 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_get_txstatus [2023-11-19 04:59:14,568 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_get_txstatus [2023-11-19 04:59:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 04:59:14,569 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 04:59:14,569 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2023-11-19 04:59:14,575 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2023-11-19 04:59:14,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:59:14,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:59:14,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:59:14,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:59:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_readfifo [2023-11-19 04:59:14,577 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_readfifo [2023-11-19 04:59:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_open [2023-11-19 04:59:14,577 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_open [2023-11-19 04:59:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2023-11-19 04:59:14,577 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2023-11-19 04:59:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_get_eeprom_len [2023-11-19 04:59:14,578 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_get_eeprom_len [2023-11-19 04:59:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_readfifo_shift [2023-11-19 04:59:14,578 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_readfifo_shift [2023-11-19 04:59:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_suspend [2023-11-19 04:59:14,579 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_suspend [2023-11-19 04:59:14,579 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_read_mac_address [2023-11-19 04:59:14,579 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_read_mac_address [2023-11-19 04:59:14,579 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_write [2023-11-19 04:59:14,579 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_write [2023-11-19 04:59:14,580 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2023-11-19 04:59:14,580 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2023-11-19 04:59:14,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:59:14,580 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:59:14,581 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 04:59:14,581 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 04:59:14,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2023-11-19 04:59:14,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2023-11-19 04:59:14,581 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_write [2023-11-19 04:59:14,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_write [2023-11-19 04:59:14,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:59:14,582 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 04:59:14,582 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 04:59:14,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:59:14,582 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_reg_write [2023-11-19 04:59:14,582 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_reg_write [2023-11-19 04:59:14,583 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_nwayreset [2023-11-19 04:59:14,583 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_nwayreset [2023-11-19 04:59:14,583 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_free_resources [2023-11-19 04:59:14,583 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_free_resources [2023-11-19 04:59:14,583 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_disable_irq_chip [2023-11-19 04:59:14,584 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_disable_irq_chip [2023-11-19 04:59:14,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:59:14,584 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:59:14,584 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:59:14,584 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2023-11-19 04:59:14,584 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2023-11-19 04:59:14,585 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 04:59:14,585 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 04:59:14,585 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_eeprom_send_cmd [2023-11-19 04:59:14,585 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_eeprom_send_cmd [2023-11-19 04:59:14,585 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:59:14,585 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:59:14,586 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_phy_adjust_link [2023-11-19 04:59:14,586 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_phy_adjust_link [2023-11-19 04:59:14,586 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_reg_read [2023-11-19 04:59:14,586 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_reg_read [2023-11-19 04:59:14,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 04:59:14,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 04:59:14,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-19 04:59:14,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-19 04:59:14,587 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_update_txcounters [2023-11-19 04:59:14,587 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_update_txcounters [2023-11-19 04:59:14,587 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_read_shift [2023-11-19 04:59:14,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_read_shift [2023-11-19 04:59:14,588 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 04:59:14,588 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 04:59:14,588 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_write_shift [2023-11-19 04:59:14,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_write_shift [2023-11-19 04:59:14,588 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 04:59:14,589 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 04:59:14,589 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 04:59:14,589 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 04:59:14,589 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2023-11-19 04:59:14,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2023-11-19 04:59:14,589 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-19 04:59:14,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-19 04:59:14,590 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_phy_enable_external [2023-11-19 04:59:14,590 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_phy_enable_external [2023-11-19 04:59:14,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:59:14,590 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_read [2023-11-19 04:59:14,590 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_read [2023-11-19 04:59:14,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:59:14,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:59:14,591 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 04:59:14,591 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 04:59:14,591 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-19 04:59:14,591 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-19 04:59:14,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc911x_cleanup_module_14_2 [2023-11-19 04:59:14,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc911x_cleanup_module_14_2 [2023-11-19 04:59:14,592 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_soft_reset [2023-11-19 04:59:14,592 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_soft_reset [2023-11-19 04:59:14,592 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_eeprom_enable_access [2023-11-19 04:59:14,593 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_eeprom_enable_access [2023-11-19 04:59:14,593 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2023-11-19 04:59:14,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2023-11-19 04:59:14,593 INFO L130 BoogieDeclarations]: Found specification of procedure spin_is_locked [2023-11-19 04:59:14,593 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_is_locked [2023-11-19 04:59:14,593 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_stop [2023-11-19 04:59:14,594 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_stop [2023-11-19 04:59:14,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 04:59:14,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 04:59:14,594 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_writefifo_shift [2023-11-19 04:59:14,594 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_writefifo_shift [2023-11-19 04:59:14,594 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-11-19 04:59:14,595 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-11-19 04:59:14,595 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 04:59:14,595 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 04:59:14,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:59:14,595 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2023-11-19 04:59:14,596 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2023-11-19 04:59:14,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 04:59:14,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 04:59:14,596 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-19 04:59:14,596 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-19 04:59:15,839 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:59:15,845 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:59:16,507 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:59:21,588 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 04:59:21,930 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:59:26,402 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:59:26,402 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 04:59:26,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:26 BoogieIcfgContainer [2023-11-19 04:59:26,424 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:59:26,428 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:59:26,428 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:59:26,432 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:59:26,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:59:08" (1/3) ... [2023-11-19 04:59:26,433 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273693f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:26, skipping insertion in model container [2023-11-19 04:59:26,433 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:59:13" (2/3) ... [2023-11-19 04:59:26,434 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273693f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:59:26, skipping insertion in model container [2023-11-19 04:59:26,434 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:59:26" (3/3) ... [2023-11-19 04:59:26,436 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i [2023-11-19 04:59:26,460 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:59:26,461 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:59:26,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:59:26,588 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;@55df1b8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:59:26,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:59:26,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 2130 states, 1265 states have (on average 1.3051383399209486) internal successors, (1651), 1299 states have internal predecessors, (1651), 750 states have call successors, (750), 117 states have call predecessors, (750), 116 states have return successors, (741), 732 states have call predecessors, (741), 741 states have call successors, (741) [2023-11-19 04:59:26,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-11-19 04:59:26,641 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:59:26,642 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:59:26,643 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:59:26,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:59:26,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1521033038, now seen corresponding path program 1 times [2023-11-19 04:59:26,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:59:26,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431883329] [2023-11-19 04:59:26,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:59:26,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:59:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:59:27,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2023-11-19 04:59:27,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:59:27,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431883329] [2023-11-19 04:59:27,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431883329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:59:27,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:59:27,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:59:27,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232511339] [2023-11-19 04:59:27,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:59:27,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:59:27,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:59:27,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:59:27,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:59:27,973 INFO L87 Difference]: Start difference. First operand has 2130 states, 1265 states have (on average 1.3051383399209486) internal successors, (1651), 1299 states have internal predecessors, (1651), 750 states have call successors, (750), 117 states have call predecessors, (750), 116 states have return successors, (741), 732 states have call predecessors, (741), 741 states have call successors, (741) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-19 04:59:31,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:59:31,054 INFO L93 Difference]: Finished difference Result 6227 states and 9653 transitions. [2023-11-19 04:59:31,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:59:31,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 211 [2023-11-19 04:59:31,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:59:31,138 INFO L225 Difference]: With dead ends: 6227 [2023-11-19 04:59:31,139 INFO L226 Difference]: Without dead ends: 4123 [2023-11-19 04:59:31,173 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 [2023-11-19 04:59:31,177 INFO L413 NwaCegarLoop]: 2705 mSDtfsCounter, 2994 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2994 SdHoareTripleChecker+Valid, 5366 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:59:31,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2994 Valid, 5366 Invalid, 863 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-19 04:59:31,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4123 states. [2023-11-19 04:59:31,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4123 to 4123. [2023-11-19 04:59:31,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4123 states, 2457 states have (on average 1.2958892958892958) internal successors, (3184), 2526 states have internal predecessors, (3184), 1437 states have call successors, (1437), 229 states have call predecessors, (1437), 228 states have return successors, (1433), 1415 states have call predecessors, (1433), 1433 states have call successors, (1433) [2023-11-19 04:59:31,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4123 states to 4123 states and 6054 transitions. [2023-11-19 04:59:31,700 INFO L78 Accepts]: Start accepts. Automaton has 4123 states and 6054 transitions. Word has length 211 [2023-11-19 04:59:31,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:59:31,702 INFO L495 AbstractCegarLoop]: Abstraction has 4123 states and 6054 transitions. [2023-11-19 04:59:31,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-11-19 04:59:31,703 INFO L276 IsEmpty]: Start isEmpty. Operand 4123 states and 6054 transitions. [2023-11-19 04:59:31,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-11-19 04:59:31,723 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:59:31,724 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 4, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:59:31,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:59:31,725 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:59:31,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:59:31,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1399504907, now seen corresponding path program 1 times [2023-11-19 04:59:31,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:59:31,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645182319] [2023-11-19 04:59:31,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:59:31,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:59:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:59:32,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1559 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2023-11-19 04:59:32,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:59:32,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645182319] [2023-11-19 04:59:32,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645182319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:59:32,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:59:32,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:59:32,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985360420] [2023-11-19 04:59:32,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:59:32,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:59:32,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:59:32,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:59:32,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:59:32,764 INFO L87 Difference]: Start difference. First operand 4123 states and 6054 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-19 04:59:35,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:59:35,382 INFO L93 Difference]: Finished difference Result 4129 states and 6059 transitions. [2023-11-19 04:59:35,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 04:59:35,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2023-11-19 04:59:35,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:59:35,441 INFO L225 Difference]: With dead ends: 4129 [2023-11-19 04:59:35,441 INFO L226 Difference]: Without dead ends: 4125 [2023-11-19 04:59:35,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:59:35,449 INFO L413 NwaCegarLoop]: 2668 mSDtfsCounter, 3033 mSDsluCounter, 5332 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3034 SdHoareTripleChecker+Valid, 8000 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:59:35,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3034 Valid, 8000 Invalid, 1268 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-19 04:59:35,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4125 states. [2023-11-19 04:59:35,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4125 to 4125. [2023-11-19 04:59:35,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 2459 states have (on average 1.2952419682797884) internal successors, (3185), 2527 states have internal predecessors, (3185), 1437 states have call successors, (1437), 230 states have call predecessors, (1437), 228 states have return successors, (1433), 1415 states have call predecessors, (1433), 1433 states have call successors, (1433) [2023-11-19 04:59:35,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 6055 transitions. [2023-11-19 04:59:35,880 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 6055 transitions. Word has length 253 [2023-11-19 04:59:35,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:59:35,883 INFO L495 AbstractCegarLoop]: Abstraction has 4125 states and 6055 transitions. [2023-11-19 04:59:35,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-19 04:59:35,884 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 6055 transitions. [2023-11-19 04:59:35,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2023-11-19 04:59:35,902 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:59:35,902 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 5, 5, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:59:35,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:59:35,903 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:59:35,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:59:35,904 INFO L85 PathProgramCache]: Analyzing trace with hash -682203631, now seen corresponding path program 1 times [2023-11-19 04:59:35,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:59:35,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224309278] [2023-11-19 04:59:35,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:59:35,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:59:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:59:37,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1566 trivial. 0 not checked. [2023-11-19 04:59:37,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:59:37,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224309278] [2023-11-19 04:59:37,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224309278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:59:37,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:59:37,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:59:37,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291583695] [2023-11-19 04:59:37,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:59:37,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:59:37,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:59:37,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:59:37,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:59:37,025 INFO L87 Difference]: Start difference. First operand 4125 states and 6055 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-19 04:59:41,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:59:41,511 INFO L93 Difference]: Finished difference Result 8205 states and 12086 transitions. [2023-11-19 04:59:41,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 04:59:41,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 261 [2023-11-19 04:59:41,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:59:41,647 INFO L225 Difference]: With dead ends: 8205 [2023-11-19 04:59:41,647 INFO L226 Difference]: Without dead ends: 8183 [2023-11-19 04:59:41,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 04:59:41,661 INFO L413 NwaCegarLoop]: 2750 mSDtfsCounter, 3017 mSDsluCounter, 8106 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3017 SdHoareTripleChecker+Valid, 10856 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:59:41,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3017 Valid, 10856 Invalid, 1703 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1700 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-19 04:59:41,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8183 states. [2023-11-19 04:59:42,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8183 to 8181. [2023-11-19 04:59:42,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8181 states, 4884 states have (on average 1.2962735462735462) internal successors, (6331), 5020 states have internal predecessors, (6331), 2842 states have call successors, (2842), 456 states have call predecessors, (2842), 454 states have return successors, (2882), 2800 states have call predecessors, (2882), 2838 states have call successors, (2882) [2023-11-19 04:59:42,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8181 states to 8181 states and 12055 transitions. [2023-11-19 04:59:42,882 INFO L78 Accepts]: Start accepts. Automaton has 8181 states and 12055 transitions. Word has length 261 [2023-11-19 04:59:42,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:59:42,885 INFO L495 AbstractCegarLoop]: Abstraction has 8181 states and 12055 transitions. [2023-11-19 04:59:42,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-19 04:59:42,887 INFO L276 IsEmpty]: Start isEmpty. Operand 8181 states and 12055 transitions. [2023-11-19 04:59:42,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2023-11-19 04:59:42,963 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:59:42,963 INFO L195 NwaCegarLoop]: trace histogram [32, 25, 25, 25, 25, 25, 25, 7, 7, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:59:42,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:59:42,965 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:59:42,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:59:42,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1204967100, now seen corresponding path program 1 times [2023-11-19 04:59:42,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:59:42,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229572143] [2023-11-19 04:59:42,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:59:42,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:59:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:59:43,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2923 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2915 trivial. 0 not checked. [2023-11-19 04:59:43,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:59:43,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229572143] [2023-11-19 04:59:43,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229572143] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:59:43,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:59:43,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:59:43,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212583615] [2023-11-19 04:59:43,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:59:43,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:59:43,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:59:43,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:59:43,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:59:43,872 INFO L87 Difference]: Start difference. First operand 8181 states and 12055 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70)