./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767fe8da-15ee-48e0-b537-1778d534982a/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767fe8da-15ee-48e0-b537-1778d534982a/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_767fe8da-15ee-48e0-b537-1778d534982a/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767fe8da-15ee-48e0-b537-1778d534982a/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767fe8da-15ee-48e0-b537-1778d534982a/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_767fe8da-15ee-48e0-b537-1778d534982a/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 536967bc2d119b5b01611d52124221c0068f635deed7f674213322a832d07143 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:36:31,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:36:31,829 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767fe8da-15ee-48e0-b537-1778d534982a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:36:31,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:36:31,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:36:31,884 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:36:31,885 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:36:31,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:36:31,887 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:36:31,892 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:36:31,893 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:36:31,894 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:36:31,895 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:36:31,896 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:36:31,897 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:36:31,897 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:36:31,898 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:36:31,898 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:36:31,899 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:36:31,899 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:36:31,900 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:36:31,900 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:36:31,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:36:31,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:36:31,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:36:31,903 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:36:31,903 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:36:31,904 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:36:31,904 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:36:31,905 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:36:31,906 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:36:31,919 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:36:31,919 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:36:31,920 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:36:31,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:31,920 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:36:31,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:36:31,921 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:36:31,921 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:36:31,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:36:31,922 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:36:31,922 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:36:31,923 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:36:31,923 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:36:31,924 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_767fe8da-15ee-48e0-b537-1778d534982a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767fe8da-15ee-48e0-b537-1778d534982a/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 536967bc2d119b5b01611d52124221c0068f635deed7f674213322a832d07143 [2023-11-23 20:36:32,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:36:32,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:36:32,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:36:32,318 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:36:32,319 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:36:32,320 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767fe8da-15ee-48e0-b537-1778d534982a/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i [2023-11-23 20:36:35,386 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:36:36,084 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:36:36,085 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767fe8da-15ee-48e0-b537-1778d534982a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i [2023-11-23 20:36:36,137 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767fe8da-15ee-48e0-b537-1778d534982a/bin/utaipan-verify-mE87zJ7Ire/data/e04a904c7/032ec24d7c424f6a84495e8cace59871/FLAG426de9e5d [2023-11-23 20:36:36,155 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767fe8da-15ee-48e0-b537-1778d534982a/bin/utaipan-verify-mE87zJ7Ire/data/e04a904c7/032ec24d7c424f6a84495e8cace59871 [2023-11-23 20:36:36,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:36:36,159 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:36:36,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:36,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:36:36,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:36:36,167 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:36" (1/1) ... [2023-11-23 20:36:36,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b92e284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:36, skipping insertion in model container [2023-11-23 20:36:36,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:36" (1/1) ... [2023-11-23 20:36:36,322 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:36:39,057 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_767fe8da-15ee-48e0-b537-1778d534982a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314317,314330] [2023-11-23 20:36:39,063 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_767fe8da-15ee-48e0-b537-1778d534982a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314464,314477] [2023-11-23 20:36:39,064 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_767fe8da-15ee-48e0-b537-1778d534982a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314603,314616] [2023-11-23 20:36:39,065 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_767fe8da-15ee-48e0-b537-1778d534982a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314761,314774] [2023-11-23 20:36:39,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:39,165 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:36:39,327 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"); [5301] [2023-11-23 20:36:39,329 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)); [5308] [2023-11-23 20:36:39,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5315] [2023-11-23 20:36:39,341 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 *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/a068ef8/linux-usb-dev/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5370-5371] [2023-11-23 20:36:39,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5376-5378] [2023-11-23 20:36:39,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [5454] [2023-11-23 20:36:39,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5462] [2023-11-23 20:36:39,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5469] [2023-11-23 20:36:39,359 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5597-5598] [2023-11-23 20:36:39,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5631-5632] [2023-11-23 20:36:39,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (79), "i" (12UL)); [5672-5673] [2023-11-23 20:36:39,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (91), "i" (12UL)); [5701-5702] [2023-11-23 20:36:39,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (103), "i" (12UL)); [5738-5739] [2023-11-23 20:36:39,368 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (115), "i" (12UL)); [5775-5776] [2023-11-23 20:36:39,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6721] [2023-11-23 20:36:39,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7492] [2023-11-23 20:36:39,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7502] [2023-11-23 20:36:39,448 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7517] [2023-11-23 20:36:39,514 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8303] [2023-11-23 20:36:39,516 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8336] [2023-11-23 20:36:39,517 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8359] [2023-11-23 20:36:39,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8600] [2023-11-23 20:36:39,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8630] [2023-11-23 20:36:39,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8643] [2023-11-23 20:36:39,639 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_767fe8da-15ee-48e0-b537-1778d534982a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314317,314330] [2023-11-23 20:36:39,640 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_767fe8da-15ee-48e0-b537-1778d534982a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314464,314477] [2023-11-23 20:36:39,641 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_767fe8da-15ee-48e0-b537-1778d534982a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314603,314616] [2023-11-23 20:36:39,641 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_767fe8da-15ee-48e0-b537-1778d534982a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i[314761,314774] [2023-11-23 20:36:39,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:39,847 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:36:39,847 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:36:39,855 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:36:39,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:39 WrapperNode [2023-11-23 20:36:39,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:39,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:39,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:36:39,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:36:39,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:39" (1/1) ... [2023-11-23 20:36:39,962 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:39" (1/1) ... [2023-11-23 20:36:40,258 INFO L138 Inliner]: procedures = 352, calls = 1994, calls flagged for inlining = 207, calls inlined = 201, statements flattened = 6121 [2023-11-23 20:36:40,259 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:40,260 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:36:40,260 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:36:40,260 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:36:40,270 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:39" (1/1) ... [2023-11-23 20:36:40,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:39" (1/1) ... [2023-11-23 20:36:40,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:39" (1/1) ... [2023-11-23 20:36:40,352 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:39" (1/1) ... [2023-11-23 20:36:40,534 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:39" (1/1) ... [2023-11-23 20:36:40,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:39" (1/1) ... [2023-11-23 20:36:40,613 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:39" (1/1) ... [2023-11-23 20:36:40,641 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:39" (1/1) ... [2023-11-23 20:36:40,699 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:36:40,701 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:36:40,702 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:36:40,702 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:36:40,702 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:39" (1/1) ... [2023-11-23 20:36:40,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:40,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767fe8da-15ee-48e0-b537-1778d534982a/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:40,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767fe8da-15ee-48e0-b537-1778d534982a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:36:40,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767fe8da-15ee-48e0-b537-1778d534982a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:36:40,778 INFO L130 BoogieDeclarations]: Found specification of procedure hme_read_desc32 [2023-11-23 20:36:40,778 INFO L138 BoogieDeclarations]: Found implementation of procedure hme_read_desc32 [2023-11-23 20:36:40,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-23 20:36:40,778 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-23 20:36:40,778 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-23 20:36:40,778 INFO L130 BoogieDeclarations]: Found specification of procedure BB_GET_BIT2 [2023-11-23 20:36:40,779 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_GET_BIT2 [2023-11-23 20:36:40,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:36:40,779 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_clean_rings [2023-11-23 20:36:40,779 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_clean_rings [2023-11-23 20:36:40,779 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2023-11-23 20:36:40,779 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2023-11-23 20:36:40,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:36:40,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:36:40,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:36:40,780 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-23 20:36:40,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-23 20:36:40,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:36:40,780 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:36:40,780 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-23 20:36:40,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-11-23 20:36:40,781 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_open [2023-11-23 20:36:40,781 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_open [2023-11-23 20:36:40,781 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_poll_stop [2023-11-23 20:36:40,781 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_poll_stop [2023-11-23 20:36:40,781 INFO L130 BoogieDeclarations]: Found specification of procedure is_quattro_p [2023-11-23 20:36:40,782 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quattro_p [2023-11-23 20:36:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 20:36:40,782 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 20:36:40,782 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_close [2023-11-23 20:36:40,783 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_close [2023-11-23 20:36:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:36:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:36:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-11-23 20:36:40,784 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-11-23 20:36:40,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-23 20:36:40,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-23 20:36:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 20:36:40,785 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 20:36:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_set_multicast [2023-11-23 20:36:40,785 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_set_multicast [2023-11-23 20:36:40,786 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-23 20:36:40,787 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-23 20:36:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2023-11-23 20:36:40,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2023-11-23 20:36:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 20:36:40,787 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 20:36:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 20:36:40,787 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 20:36:40,788 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-23 20:36:40,788 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-23 20:36:40,788 INFO L130 BoogieDeclarations]: Found specification of procedure BB_PUT_BIT [2023-11-23 20:36:40,788 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_PUT_BIT [2023-11-23 20:36:40,788 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-11-23 20:36:40,789 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-11-23 20:36:40,789 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-11-23 20:36:40,789 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-11-23 20:36:40,789 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_begin_auto_negotiation [2023-11-23 20:36:40,790 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_begin_auto_negotiation [2023-11-23 20:36:40,790 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_get_counters [2023-11-23 20:36:40,790 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_get_counters [2023-11-23 20:36:40,790 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-23 20:36:40,790 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-23 20:36:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:36:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 20:36:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:36:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 20:36:40,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 20:36:40,791 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-23 20:36:40,792 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-23 20:36:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 20:36:40,792 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 20:36:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-23 20:36:40,792 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-23 20:36:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2023-11-23 20:36:40,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2023-11-23 20:36:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-23 20:36:40,793 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-23 20:36:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 20:36:40,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 20:36:40,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:36:40,794 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-23 20:36:40,794 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-23 20:36:40,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:36:40,795 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:36:40,795 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:36:40,795 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-23 20:36:40,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-23 20:36:40,796 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_stop [2023-11-23 20:36:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_stop [2023-11-23 20:36:40,796 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 20:36:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 20:36:40,796 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 20:36:40,796 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 20:36:40,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 20:36:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 20:36:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-23 20:36:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-23 20:36:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:36:40,797 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_pci_remove [2023-11-23 20:36:40,797 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_pci_remove [2023-11-23 20:36:40,798 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 20:36:40,799 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 20:36:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:36:40,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 20:36:40,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 20:36:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_init [2023-11-23 20:36:40,800 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_init [2023-11-23 20:36:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-23 20:36:40,800 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-23 20:36:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:36:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 20:36:40,801 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 20:36:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-23 20:36:40,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-23 20:36:40,803 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_write [2023-11-23 20:36:40,806 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_write [2023-11-23 20:36:40,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-23 20:36:40,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-23 20:36:40,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 20:36:40,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 20:36:40,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 20:36:40,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 20:36:40,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:36:40,809 INFO L130 BoogieDeclarations]: Found specification of procedure set_happy_link_modes [2023-11-23 20:36:40,814 INFO L138 BoogieDeclarations]: Found implementation of procedure set_happy_link_modes [2023-11-23 20:36:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_reset [2023-11-23 20:36:40,815 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_reset [2023-11-23 20:36:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-23 20:36:40,815 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-23 20:36:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:36:40,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:36:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:36:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 20:36:40,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 20:36:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 20:36:40,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 20:36:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tx_timeout [2023-11-23 20:36:40,816 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tx_timeout [2023-11-23 20:36:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-23 20:36:40,816 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-23 20:36:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-23 20:36:40,816 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-23 20:36:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:36:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_read [2023-11-23 20:36:40,817 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_read [2023-11-23 20:36:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 20:36:40,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 20:36:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 20:36:40,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 20:36:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:36:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:36:40,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:36:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-23 20:36:40,817 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-23 20:36:40,818 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:36:40,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:36:40,818 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-23 20:36:40,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-23 20:36:40,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 20:36:40,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 20:36:40,818 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-23 20:36:40,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-11-23 20:36:40,818 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-11-23 20:36:40,819 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-11-23 20:36:40,819 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 20:36:40,819 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 20:36:40,819 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2023-11-23 20:36:40,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2023-11-23 20:36:40,819 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 20:36:40,819 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 20:36:40,819 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-23 20:36:40,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-23 20:36:40,819 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-23 20:36:40,820 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-23 20:36:40,820 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-23 20:36:40,820 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-23 20:36:40,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:36:40,820 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2023-11-23 20:36:40,820 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2023-11-23 20:36:40,820 INFO L130 BoogieDeclarations]: Found specification of procedure is_lucent_phy [2023-11-23 20:36:40,820 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lucent_phy [2023-11-23 20:36:40,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 20:36:40,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 20:36:40,821 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2023-11-23 20:36:40,821 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2023-11-23 20:36:40,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:36:40,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:36:40,821 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_transceiver_check [2023-11-23 20:36:40,821 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_transceiver_check [2023-11-23 20:36:41,761 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:36:41,765 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:36:42,650 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:36:46,522 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 20:36:46,861 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:36:50,643 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:36:50,643 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:36:50,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:50 BoogieIcfgContainer [2023-11-23 20:36:50,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:36:50,649 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:36:50,650 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:36:50,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:36:50,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:36:36" (1/3) ... [2023-11-23 20:36:50,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e70d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:50, skipping insertion in model container [2023-11-23 20:36:50,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:39" (2/3) ... [2023-11-23 20:36:50,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e70d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:50, skipping insertion in model container [2023-11-23 20:36:50,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:50" (3/3) ... [2023-11-23 20:36:50,658 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-sun-sunhme.cil.i [2023-11-23 20:36:50,681 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:36:50,681 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-23 20:36:50,795 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:36:50,804 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;@63f47d14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:36:50,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-23 20:36:50,818 INFO L276 IsEmpty]: Start isEmpty. Operand has 1726 states, 1024 states have (on average 1.3076171875) internal successors, (1339), 1059 states have internal predecessors, (1339), 615 states have call successors, (615), 86 states have call predecessors, (615), 85 states have return successors, (609), 598 states have call predecessors, (609), 609 states have call successors, (609) [2023-11-23 20:36:50,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-23 20:36:50,854 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:50,854 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:36:50,855 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:50,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:50,860 INFO L85 PathProgramCache]: Analyzing trace with hash -918817913, now seen corresponding path program 1 times [2023-11-23 20:36:50,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:50,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554945532] [2023-11-23 20:36:50,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:50,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:51,865 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-23 20:36:51,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:51,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554945532] [2023-11-23 20:36:51,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554945532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:51,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:51,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:36:51,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100649743] [2023-11-23 20:36:51,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:51,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:36:51,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:51,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:36:51,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:36:51,919 INFO L87 Difference]: Start difference. First operand has 1726 states, 1024 states have (on average 1.3076171875) internal successors, (1339), 1059 states have internal predecessors, (1339), 615 states have call successors, (615), 86 states have call predecessors, (615), 85 states have return successors, (609), 598 states have call predecessors, (609), 609 states have call successors, (609) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 20:36:55,430 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 20:36:58,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:36:59,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:59,287 INFO L93 Difference]: Finished difference Result 5081 states and 7561 transitions. [2023-11-23 20:36:59,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:36:59,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 100 [2023-11-23 20:36:59,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:59,384 INFO L225 Difference]: With dead ends: 5081 [2023-11-23 20:36:59,384 INFO L226 Difference]: Without dead ends: 3362 [2023-11-23 20:36:59,409 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 20:36:59,414 INFO L413 NwaCegarLoop]: 2233 mSDtfsCounter, 2472 mSDsluCounter, 2187 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 4420 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:59,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 4420 Invalid, 691 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 683 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2023-11-23 20:36:59,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3362 states. [2023-11-23 20:36:59,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3362 to 3360. [2023-11-23 20:36:59,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3360 states, 2001 states have (on average 1.301849075462269) internal successors, (2605), 2070 states have internal predecessors, (2605), 1190 states have call successors, (1190), 168 states have call predecessors, (1190), 167 states have return successors, (1187), 1165 states have call predecessors, (1187), 1187 states have call successors, (1187) [2023-11-23 20:36:59,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 4982 transitions. [2023-11-23 20:36:59,929 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 4982 transitions. Word has length 100 [2023-11-23 20:36:59,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:59,931 INFO L495 AbstractCegarLoop]: Abstraction has 3360 states and 4982 transitions. [2023-11-23 20:36:59,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-23 20:36:59,932 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 4982 transitions. [2023-11-23 20:36:59,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-23 20:36:59,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:59,955 INFO L195 NwaCegarLoop]: trace histogram [11, 8, 8, 8, 8, 8, 8, 3, 3, 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] [2023-11-23 20:36:59,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:36:59,956 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:59,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:59,956 INFO L85 PathProgramCache]: Analyzing trace with hash 948985814, now seen corresponding path program 1 times [2023-11-23 20:36:59,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:59,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334056052] [2023-11-23 20:36:59,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:59,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:00,432 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2023-11-23 20:37:00,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:00,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334056052] [2023-11-23 20:37:00,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334056052] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:00,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:00,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:37:00,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536689956] [2023-11-23 20:37:00,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:00,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:37:00,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:00,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:37:00,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:37:00,437 INFO L87 Difference]: Start difference. First operand 3360 states and 4982 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 20:37:03,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:37:04,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:04,673 INFO L93 Difference]: Finished difference Result 5063 states and 7502 transitions. [2023-11-23 20:37:04,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:37:04,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2023-11-23 20:37:04,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:04,713 INFO L225 Difference]: With dead ends: 5063 [2023-11-23 20:37:04,713 INFO L226 Difference]: Without dead ends: 3360 [2023-11-23 20:37:04,726 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 20:37:04,727 INFO L413 NwaCegarLoop]: 2205 mSDtfsCounter, 7 mSDsluCounter, 2195 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4400 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:04,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4400 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-23 20:37:04,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3360 states. [2023-11-23 20:37:05,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3360 to 3360. [2023-11-23 20:37:05,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3360 states, 2001 states have (on average 1.3013493253373314) internal successors, (2604), 2070 states have internal predecessors, (2604), 1190 states have call successors, (1190), 168 states have call predecessors, (1190), 167 states have return successors, (1187), 1165 states have call predecessors, (1187), 1187 states have call successors, (1187) [2023-11-23 20:37:05,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 4981 transitions. [2023-11-23 20:37:05,122 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 4981 transitions. Word has length 133 [2023-11-23 20:37:05,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:05,122 INFO L495 AbstractCegarLoop]: Abstraction has 3360 states and 4981 transitions. [2023-11-23 20:37:05,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-23 20:37:05,123 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 4981 transitions. [2023-11-23 20:37:05,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-11-23 20:37:05,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:05,131 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:37:05,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:37:05,131 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:05,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:05,132 INFO L85 PathProgramCache]: Analyzing trace with hash -144018194, now seen corresponding path program 1 times [2023-11-23 20:37:05,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:05,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008633989] [2023-11-23 20:37:05,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:05,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:05,639 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-23 20:37:05,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:05,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008633989] [2023-11-23 20:37:05,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008633989] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:05,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:05,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:37:05,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032056734] [2023-11-23 20:37:05,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:05,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:37:05,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:05,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:37:05,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:37:05,643 INFO L87 Difference]: Start difference. First operand 3360 states and 4981 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-23 20:37:09,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:37:10,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:10,862 INFO L93 Difference]: Finished difference Result 7608 states and 11293 transitions. [2023-11-23 20:37:10,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:37:10,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 129 [2023-11-23 20:37:10,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:10,911 INFO L225 Difference]: With dead ends: 7608 [2023-11-23 20:37:10,911 INFO L226 Difference]: Without dead ends: 4265 [2023-11-23 20:37:10,936 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 20:37:10,937 INFO L413 NwaCegarLoop]: 2217 mSDtfsCounter, 1899 mSDsluCounter, 2163 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 4380 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:10,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1899 Valid, 4380 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 721 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2023-11-23 20:37:10,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4265 states. [2023-11-23 20:37:11,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4265 to 4258. [2023-11-23 20:37:11,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4258 states, 2526 states have (on average 1.2921615201900238) internal successors, (3264), 2616 states have internal predecessors, (3264), 1520 states have call successors, (1520), 212 states have call predecessors, (1520), 210 states have return successors, (1517), 1487 states have call predecessors, (1517), 1517 states have call successors, (1517) [2023-11-23 20:37:11,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4258 states to 4258 states and 6301 transitions. [2023-11-23 20:37:11,248 INFO L78 Accepts]: Start accepts. Automaton has 4258 states and 6301 transitions. Word has length 129 [2023-11-23 20:37:11,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:11,249 INFO L495 AbstractCegarLoop]: Abstraction has 4258 states and 6301 transitions. [2023-11-23 20:37:11,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-23 20:37:11,250 INFO L276 IsEmpty]: Start isEmpty. Operand 4258 states and 6301 transitions. [2023-11-23 20:37:11,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-23 20:37:11,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:11,258 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 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] [2023-11-23 20:37:11,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 20:37:11,258 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:11,259 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:11,259 INFO L85 PathProgramCache]: Analyzing trace with hash 285192089, now seen corresponding path program 1 times [2023-11-23 20:37:11,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:11,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637608843] [2023-11-23 20:37:11,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:11,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:11,984 INFO L134 CoverageAnalysis]: Checked inductivity of 327 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-11-23 20:37:11,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:11,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637608843] [2023-11-23 20:37:11,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637608843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:11,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:11,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 20:37:11,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125906014] [2023-11-23 20:37:11,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:11,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 20:37:11,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:11,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 20:37:11,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 20:37:11,990 INFO L87 Difference]: Start difference. First operand 4258 states and 6301 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 20:37:16,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:37:16,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:16,813 INFO L93 Difference]: Finished difference Result 4258 states and 6301 transitions. [2023-11-23 20:37:16,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 20:37:16,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 144 [2023-11-23 20:37:16,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:16,856 INFO L225 Difference]: With dead ends: 4258 [2023-11-23 20:37:16,856 INFO L226 Difference]: Without dead ends: 4234 [2023-11-23 20:37:16,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:37:16,866 INFO L413 NwaCegarLoop]: 2201 mSDtfsCounter, 2490 mSDsluCounter, 2201 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2490 SdHoareTripleChecker+Valid, 4402 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:16,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2490 Valid, 4402 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 666 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2023-11-23 20:37:16,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4234 states. [2023-11-23 20:37:17,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4234 to 4234. [2023-11-23 20:37:17,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 2519 states have (on average 1.2901945216355697) internal successors, (3250), 2603 states have internal predecessors, (3250), 1505 states have call successors, (1505), 209 states have call predecessors, (1505), 209 states have return successors, (1505), 1479 states have call predecessors, (1505), 1505 states have call successors, (1505) [2023-11-23 20:37:17,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 6260 transitions. [2023-11-23 20:37:17,243 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 6260 transitions. Word has length 144 [2023-11-23 20:37:17,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:17,244 INFO L495 AbstractCegarLoop]: Abstraction has 4234 states and 6260 transitions. [2023-11-23 20:37:17,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 20:37:17,246 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 6260 transitions. [2023-11-23 20:37:17,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-11-23 20:37:17,270 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:17,270 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 5, 5, 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] [2023-11-23 20:37:17,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 20:37:17,271 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:17,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:17,272 INFO L85 PathProgramCache]: Analyzing trace with hash -996667208, now seen corresponding path program 1 times [2023-11-23 20:37:17,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:17,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064496852] [2023-11-23 20:37:17,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:17,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:37:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:37:17,706 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2023-11-23 20:37:17,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:37:17,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064496852] [2023-11-23 20:37:17,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064496852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:37:17,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:37:17,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:37:17,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076485987] [2023-11-23 20:37:17,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:37:17,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:37:17,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:37:17,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:37:17,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:37:17,710 INFO L87 Difference]: Start difference. First operand 4234 states and 6260 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-23 20:37:21,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:37:21,339 INFO L93 Difference]: Finished difference Result 8497 states and 12570 transitions. [2023-11-23 20:37:21,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:37:21,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 178 [2023-11-23 20:37:21,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:37:21,387 INFO L225 Difference]: With dead ends: 8497 [2023-11-23 20:37:21,387 INFO L226 Difference]: Without dead ends: 5526 [2023-11-23 20:37:21,410 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 20:37:21,411 INFO L413 NwaCegarLoop]: 3803 mSDtfsCounter, 1883 mSDsluCounter, 2141 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1883 SdHoareTripleChecker+Valid, 5944 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:37:21,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1883 Valid, 5944 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-23 20:37:21,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5526 states. [2023-11-23 20:37:21,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5526 to 5525. [2023-11-23 20:37:21,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5525 states, 3284 states have (on average 1.2886723507917175) internal successors, (4232), 3394 states have internal predecessors, (4232), 1966 states have call successors, (1966), 274 states have call predecessors, (1966), 274 states have return successors, (1966), 1932 states have call predecessors, (1966), 1966 states have call successors, (1966) [2023-11-23 20:37:21,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5525 states to 5525 states and 8164 transitions. [2023-11-23 20:37:21,852 INFO L78 Accepts]: Start accepts. Automaton has 5525 states and 8164 transitions. Word has length 178 [2023-11-23 20:37:21,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:37:21,853 INFO L495 AbstractCegarLoop]: Abstraction has 5525 states and 8164 transitions. [2023-11-23 20:37:21,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-11-23 20:37:21,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5525 states and 8164 transitions. [2023-11-23 20:37:21,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-11-23 20:37:21,898 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:37:21,899 INFO L195 NwaCegarLoop]: trace histogram [14, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:37:21,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 20:37:21,900 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:37:21,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:37:21,900 INFO L85 PathProgramCache]: Analyzing trace with hash 2058665400, now seen corresponding path program 1 times [2023-11-23 20:37:21,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:37:21,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600448647] [2023-11-23 20:37:21,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:37:21,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms