./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_b97201ef-2c39-40e4-a339-9c5c28012552/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97201ef-2c39-40e4-a339-9c5c28012552/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97201ef-2c39-40e4-a339-9c5c28012552/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97201ef-2c39-40e4-a339-9c5c28012552/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97201ef-2c39-40e4-a339-9c5c28012552/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97201ef-2c39-40e4-a339-9c5c28012552/bin/utaipan-verify-YMUCfTKeje --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 dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:08:44,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:08:44,825 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97201ef-2c39-40e4-a339-9c5c28012552/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 07:08:44,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:08:44,834 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:08:44,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:08:44,880 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:08:44,880 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:08:44,881 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:08:44,882 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:08:44,882 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:08:44,883 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:08:44,884 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:08:44,884 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:08:44,886 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:08:44,887 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:08:44,887 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:08:44,888 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:08:44,888 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:08:44,888 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:08:44,889 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:08:44,889 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:08:44,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:08:44,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:08:44,894 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:08:44,895 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:08:44,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:08:44,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:08:44,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:08:44,896 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:08:44,896 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:08:44,896 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:08:44,896 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:08:44,897 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:08:44,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:08:44,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:08:44,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:08:44,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:08:44,900 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:08:44,900 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:08:44,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:08:44,901 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:08:44,901 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:08:44,901 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:08:44,902 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_b97201ef-2c39-40e4-a339-9c5c28012552/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97201ef-2c39-40e4-a339-9c5c28012552/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 [2024-11-09 07:08:45,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:08:45,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:08:45,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:08:45,237 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:08:45,237 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:08:45,239 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97201ef-2c39-40e4-a339-9c5c28012552/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i Unable to find full path for "g++" [2024-11-09 07:08:47,460 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:08:48,483 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:08:48,484 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97201ef-2c39-40e4-a339-9c5c28012552/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2024-11-09 07:08:48,574 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97201ef-2c39-40e4-a339-9c5c28012552/bin/utaipan-verify-YMUCfTKeje/data/442db0e3f/18cec57f5eaa4cb3b9de43900ba9457e/FLAGf5208ea70 [2024-11-09 07:08:48,600 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97201ef-2c39-40e4-a339-9c5c28012552/bin/utaipan-verify-YMUCfTKeje/data/442db0e3f/18cec57f5eaa4cb3b9de43900ba9457e [2024-11-09 07:08:48,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:08:48,608 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:08:48,612 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:08:48,612 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:08:48,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:08:48,621 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:08:48" (1/1) ... [2024-11-09 07:08:48,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36ba1176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:48, skipping insertion in model container [2024-11-09 07:08:48,623 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:08:48" (1/1) ... [2024-11-09 07:08:48,860 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:08:52,684 WARN L250 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_b97201ef-2c39-40e4-a339-9c5c28012552/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2024-11-09 07:08:52,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:08:52,896 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:08:53,113 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"); [5533] [2024-11-09 07:08:53,115 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)); [5540] [2024-11-09 07:08:53,116 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5547] [2024-11-09 07:08:53,118 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/e5e3e20/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5596-5597] [2024-11-09 07:08:53,119 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"); [5602-5604] [2024-11-09 07:08:53,120 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/e5e3e20/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (809), "i" (12UL)); [5629-5630] [2024-11-09 07:08:53,121 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" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [5635-5637] [2024-11-09 07:08:53,122 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/e5e3e20/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (814), "i" (12UL)); [5661-5662] [2024-11-09 07:08:53,122 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" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5667-5669] [2024-11-09 07:08:53,124 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [5695] [2024-11-09 07:08:53,128 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr))); [5841] [2024-11-09 07:08:53,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr))); [5848] [2024-11-09 07:08:53,135 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)); [5960-5961] [2024-11-09 07:08:53,138 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)); [5994-5995] [2024-11-09 07:08:53,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/skbuff.h"), "i" (1516), "i" (12UL)); [6169-6170] [2024-11-09 07:08:53,153 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/netdevice.h"), "i" (502), "i" (12UL)); [6349-6350] [2024-11-09 07:08:53,154 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6356] [2024-11-09 07:08:53,213 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7633] [2024-11-09 07:08:53,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7673] [2024-11-09 07:08:53,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7726] [2024-11-09 07:08:53,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7778] [2024-11-09 07:08:53,223 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7802] [2024-11-09 07:08:53,224 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7823] [2024-11-09 07:08:53,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7911] [2024-11-09 07:08:53,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/ethernet/cadence/macb.c"), "i" (808), "i" (12UL)); [7930-7931] [2024-11-09 07:08:53,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7955] [2024-11-09 07:08:53,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7985] [2024-11-09 07:08:53,306 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/ethernet/cadence/macb.c"), "i" (863), "i" (12UL)); [8009-8010] [2024-11-09 07:08:53,325 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8292] [2024-11-09 07:08:53,622 WARN L250 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_b97201ef-2c39-40e4-a339-9c5c28012552/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2024-11-09 07:08:53,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:08:53,910 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:08:53,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:53 WrapperNode [2024-11-09 07:08:53,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:08:53,914 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:08:53,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:08:53,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:08:53,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:53" (1/1) ... [2024-11-09 07:08:54,075 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:53" (1/1) ... [2024-11-09 07:08:54,398 INFO L138 Inliner]: procedures = 425, calls = 2261, calls flagged for inlining = 259, calls inlined = 248, statements flattened = 6720 [2024-11-09 07:08:54,399 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:08:54,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:08:54,401 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:08:54,401 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:08:54,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:53" (1/1) ... [2024-11-09 07:08:54,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:53" (1/1) ... [2024-11-09 07:08:54,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:53" (1/1) ... [2024-11-09 07:08:54,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:53" (1/1) ... [2024-11-09 07:08:54,667 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:53" (1/1) ... [2024-11-09 07:08:54,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:53" (1/1) ... [2024-11-09 07:08:54,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:53" (1/1) ... [2024-11-09 07:08:54,771 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:53" (1/1) ... [2024-11-09 07:08:54,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:08:54,843 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:08:54,844 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:08:54,844 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:08:54,845 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:53" (1/1) ... [2024-11-09 07:08:54,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:08:54,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97201ef-2c39-40e4-a339-9c5c28012552/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:08:54,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97201ef-2c39-40e4-a339-9c5c28012552/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:08:54,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b97201ef-2c39-40e4-a339-9c5c28012552/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:08:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 07:08:54,946 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 07:08:54,947 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2024-11-09 07:08:54,947 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2024-11-09 07:08:54,947 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-09 07:08:54,947 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-09 07:08:54,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 07:08:54,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 07:08:54,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2024-11-09 07:08:54,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2024-11-09 07:08:54,948 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2024-11-09 07:08:54,948 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2024-11-09 07:08:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-11-09 07:08:54,949 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-11-09 07:08:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-09 07:08:54,949 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-09 07:08:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2024-11-09 07:08:54,949 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2024-11-09 07:08:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_regs_len [2024-11-09 07:08:54,950 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_regs_len [2024-11-09 07:08:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-09 07:08:54,951 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-09 07:08:54,951 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-09 07:08:54,951 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-09 07:08:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2024-11-09 07:08:54,952 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2024-11-09 07:08:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2024-11-09 07:08:54,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2024-11-09 07:08:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-09 07:08:54,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-09 07:08:54,954 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2024-11-09 07:08:54,954 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2024-11-09 07:08:54,954 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-09 07:08:54,954 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-09 07:08:54,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-09 07:08:54,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-09 07:08:54,955 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2024-11-09 07:08:54,955 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2024-11-09 07:08:54,955 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-09 07:08:54,955 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-09 07:08:54,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:08:54,956 INFO L130 BoogieDeclarations]: Found specification of procedure macb_remove [2024-11-09 07:08:54,957 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_remove [2024-11-09 07:08:54,957 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-09 07:08:54,957 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-09 07:08:54,957 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2024-11-09 07:08:54,957 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2024-11-09 07:08:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-09 07:08:54,958 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-09 07:08:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-09 07:08:54,958 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-09 07:08:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 07:08:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2024-11-09 07:08:54,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2024-11-09 07:08:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-11-09 07:08:54,959 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-11-09 07:08:54,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2024-11-09 07:08:54,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2024-11-09 07:08:54,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 07:08:54,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-09 07:08:54,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-09 07:08:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:08:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-11-09 07:08:54,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-11-09 07:08:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure macb_free_consistent [2024-11-09 07:08:54,961 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_free_consistent [2024-11-09 07:08:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 07:08:54,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 07:08:54,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2024-11-09 07:08:54,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2024-11-09 07:08:54,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2024-11-09 07:08:54,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2024-11-09 07:08:54,963 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2024-11-09 07:08:54,963 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2024-11-09 07:08:54,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-09 07:08:54,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-09 07:08:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2024-11-09 07:08:54,964 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2024-11-09 07:08:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure macb_resume [2024-11-09 07:08:54,965 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_resume [2024-11-09 07:08:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:08:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-09 07:08:54,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-09 07:08:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-09 07:08:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-09 07:08:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2024-11-09 07:08:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2024-11-09 07:08:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2024-11-09 07:08:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2024-11-09 07:08:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure macb_is_gem [2024-11-09 07:08:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_is_gem [2024-11-09 07:08:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2024-11-09 07:08:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2024-11-09 07:08:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:08:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 07:08:54,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 07:08:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure macb_rx_ring_wrap [2024-11-09 07:08:54,970 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_rx_ring_wrap [2024-11-09 07:08:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 07:08:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 07:08:54,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 07:08:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-09 07:08:54,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-09 07:08:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2024-11-09 07:08:54,972 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2024-11-09 07:08:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-09 07:08:54,973 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-09 07:08:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-11-09 07:08:54,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-11-09 07:08:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-09 07:08:54,974 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-09 07:08:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2024-11-09 07:08:54,974 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2024-11-09 07:08:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2024-11-09 07:08:54,975 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2024-11-09 07:08:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:08:54,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:08:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-09 07:08:54,976 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-09 07:08:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2024-11-09 07:08:54,977 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2024-11-09 07:08:54,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 07:08:54,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 07:08:54,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 07:08:54,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 07:08:54,978 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2024-11-09 07:08:54,978 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2024-11-09 07:08:54,978 INFO L130 BoogieDeclarations]: Found specification of procedure phy_find_first [2024-11-09 07:08:54,978 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_find_first [2024-11-09 07:08:54,978 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2024-11-09 07:08:54,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2024-11-09 07:08:54,979 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_ring_wrap [2024-11-09 07:08:54,979 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_ring_wrap [2024-11-09 07:08:54,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2024-11-09 07:08:54,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2024-11-09 07:08:54,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2024-11-09 07:08:54,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2024-11-09 07:08:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2024-11-09 07:08:54,981 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2024-11-09 07:08:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-09 07:08:54,981 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-09 07:08:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure macb_handle_link_change [2024-11-09 07:08:54,981 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_handle_link_change [2024-11-09 07:08:54,982 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2024-11-09 07:08:54,983 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2024-11-09 07:08:54,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_14 [2024-11-09 07:08:54,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_14 [2024-11-09 07:08:54,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_16 [2024-11-09 07:08:54,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_16 [2024-11-09 07:08:54,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_15 [2024-11-09 07:08:54,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_15 [2024-11-09 07:08:54,985 INFO L130 BoogieDeclarations]: Found specification of procedure macb_close [2024-11-09 07:08:54,985 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_close [2024-11-09 07:08:54,985 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mdc_clk_div [2024-11-09 07:08:54,985 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mdc_clk_div [2024-11-09 07:08:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2024-11-09 07:08:54,986 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2024-11-09 07:08:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-09 07:08:54,986 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-09 07:08:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_19 [2024-11-09 07:08:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_19 [2024-11-09 07:08:54,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:08:54,988 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2024-11-09 07:08:54,988 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2024-11-09 07:08:54,988 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2024-11-09 07:08:54,988 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2024-11-09 07:08:54,988 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-11-09 07:08:54,989 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-11-09 07:08:54,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_21 [2024-11-09 07:08:54,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_21 [2024-11-09 07:08:54,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 07:08:54,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_20 [2024-11-09 07:08:54,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_20 [2024-11-09 07:08:54,990 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2024-11-09 07:08:54,990 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2024-11-09 07:08:54,990 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2024-11-09 07:08:54,990 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2024-11-09 07:08:54,990 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-09 07:08:54,990 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-09 07:08:54,991 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_desc [2024-11-09 07:08:54,991 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_desc [2024-11-09 07:08:54,991 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2024-11-09 07:08:54,991 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2024-11-09 07:08:54,991 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-09 07:08:54,991 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-09 07:08:54,991 INFO L130 BoogieDeclarations]: Found specification of procedure macb_reset_hw [2024-11-09 07:08:54,992 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_reset_hw [2024-11-09 07:08:54,992 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-09 07:08:54,992 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-09 07:08:54,992 INFO L130 BoogieDeclarations]: Found specification of procedure macb_suspend [2024-11-09 07:08:54,992 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_suspend [2024-11-09 07:08:54,992 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2024-11-09 07:08:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2024-11-09 07:08:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-09 07:08:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-09 07:08:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure macb_dbw [2024-11-09 07:08:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_dbw [2024-11-09 07:08:54,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-09 07:08:54,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-09 07:08:54,994 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2024-11-09 07:08:54,994 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2024-11-09 07:08:54,994 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-09 07:08:54,994 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-09 07:08:54,995 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-09 07:08:54,995 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-09 07:08:54,995 INFO L130 BoogieDeclarations]: Found specification of procedure devm_pinctrl_put [2024-11-09 07:08:54,995 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_pinctrl_put [2024-11-09 07:08:54,995 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-09 07:08:54,995 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-09 07:08:54,996 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 07:08:54,996 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 07:08:54,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:08:54,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 07:08:54,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 07:08:54,996 INFO L130 BoogieDeclarations]: Found specification of procedure gem_rx_refill [2024-11-09 07:08:54,997 INFO L138 BoogieDeclarations]: Found implementation of procedure gem_rx_refill [2024-11-09 07:08:54,997 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-09 07:08:54,997 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-09 07:08:54,997 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_dma [2024-11-09 07:08:54,997 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_dma [2024-11-09 07:08:54,997 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_skb [2024-11-09 07:08:54,998 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_skb [2024-11-09 07:08:54,998 INFO L130 BoogieDeclarations]: Found specification of procedure macb_interrupt [2024-11-09 07:08:54,998 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_interrupt [2024-11-09 07:08:54,998 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2024-11-09 07:08:54,998 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2024-11-09 07:08:54,998 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2024-11-09 07:08:54,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2024-11-09 07:08:54,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-09 07:08:54,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-09 07:08:54,999 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2024-11-09 07:08:54,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2024-11-09 07:08:54,999 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2024-11-09 07:08:54,999 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2024-11-09 07:08:55,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:08:55,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-09 07:08:55,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-09 07:08:55,000 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2024-11-09 07:08:55,000 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2024-11-09 07:08:56,444 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:08:56,449 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:08:56,567 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 07:09:10,958 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-09 07:09:12,633 INFO L? ?]: Removed 2829 outVars from TransFormulas that were not future-live. [2024-11-09 07:09:12,634 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:09:16,112 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:09:16,113 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 07:09:16,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:09:16 BoogieIcfgContainer [2024-11-09 07:09:16,113 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:09:16,116 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:09:16,116 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:09:16,121 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:09:16,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:08:48" (1/3) ... [2024-11-09 07:09:16,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3163d2f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:09:16, skipping insertion in model container [2024-11-09 07:09:16,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:08:53" (2/3) ... [2024-11-09 07:09:16,123 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3163d2f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:09:16, skipping insertion in model container [2024-11-09 07:09:16,123 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:09:16" (3/3) ... [2024-11-09 07:09:16,125 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2024-11-09 07:09:16,150 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:09:16,151 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:09:16,330 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:16,340 INFO L333 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, 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;@1c8486ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:16,340 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:09:16,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 1710 states, 1045 states have (on average 1.2899521531100477) internal successors, (1348), 1060 states have internal predecessors, (1348), 553 states have call successors, (553), 112 states have call predecessors, (553), 111 states have return successors, (546), 541 states have call predecessors, (546), 546 states have call successors, (546) [2024-11-09 07:09:16,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 07:09:16,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:09:16,391 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:16,392 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:09:16,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:16,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1196592200, now seen corresponding path program 1 times [2024-11-09 07:09:16,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:09:16,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546852132] [2024-11-09 07:09:16,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:16,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:27,019 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-09 07:09:27,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:09:27,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546852132] [2024-11-09 07:09:27,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546852132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:27,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:27,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:09:27,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628898604] [2024-11-09 07:09:27,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:27,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:27,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:09:27,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:27,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:27,082 INFO L87 Difference]: Start difference. First operand has 1710 states, 1045 states have (on average 1.2899521531100477) internal successors, (1348), 1060 states have internal predecessors, (1348), 553 states have call successors, (553), 112 states have call predecessors, (553), 111 states have return successors, (546), 541 states have call predecessors, (546), 546 states have call successors, (546) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-09 07:09:29,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:09:31,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:09:34,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:09:40,333 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 [] [2024-11-09 07:09:44,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:09:44,651 INFO L93 Difference]: Finished difference Result 5027 states and 7205 transitions. [2024-11-09 07:09:44,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:44,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 127 [2024-11-09 07:09:44,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:09:44,716 INFO L225 Difference]: With dead ends: 5027 [2024-11-09 07:09:44,716 INFO L226 Difference]: Without dead ends: 3328 [2024-11-09 07:09:44,739 INFO L431 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 [2024-11-09 07:09:44,745 INFO L432 NwaCegarLoop]: 2107 mSDtfsCounter, 2367 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2367 SdHoareTripleChecker+Valid, 4174 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:09:44,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2367 Valid, 4174 Invalid, 705 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 699 Invalid, 3 Unknown, 0 Unchecked, 17.0s Time] [2024-11-09 07:09:44,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3328 states. [2024-11-09 07:09:45,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3328 to 3328. [2024-11-09 07:09:45,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3328 states, 2044 states have (on average 1.2871819960861057) internal successors, (2631), 2074 states have internal predecessors, (2631), 1064 states have call successors, (1064), 220 states have call predecessors, (1064), 219 states have return successors, (1061), 1051 states have call predecessors, (1061), 1061 states have call successors, (1061) [2024-11-09 07:09:45,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3328 states to 3328 states and 4756 transitions. [2024-11-09 07:09:45,265 INFO L78 Accepts]: Start accepts. Automaton has 3328 states and 4756 transitions. Word has length 127 [2024-11-09 07:09:45,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:09:45,267 INFO L471 AbstractCegarLoop]: Abstraction has 3328 states and 4756 transitions. [2024-11-09 07:09:45,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-09 07:09:45,268 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 4756 transitions. [2024-11-09 07:09:45,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-09 07:09:45,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:09:45,302 INFO L215 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 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] [2024-11-09 07:09:45,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:09:45,303 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:09:45,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:45,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1817148222, now seen corresponding path program 1 times [2024-11-09 07:09:45,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:09:45,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712156954] [2024-11-09 07:09:45,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:45,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2024-11-09 07:09:56,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:09:56,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712156954] [2024-11-09 07:09:56,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712156954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:56,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:56,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:09:56,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025275708] [2024-11-09 07:09:56,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:56,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:09:56,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:09:56,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:09:56,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:09:56,374 INFO L87 Difference]: Start difference. First operand 3328 states and 4756 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 07:09:58,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:00,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:02,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:14,946 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 [] [2024-11-09 07:10:20,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:10:20,205 INFO L93 Difference]: Finished difference Result 3334 states and 4761 transitions. [2024-11-09 07:10:20,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:20,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 165 [2024-11-09 07:10:20,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:10:20,240 INFO L225 Difference]: With dead ends: 3334 [2024-11-09 07:10:20,241 INFO L226 Difference]: Without dead ends: 3332 [2024-11-09 07:10:20,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:10:20,246 INFO L432 NwaCegarLoop]: 2070 mSDtfsCounter, 2381 mSDsluCounter, 4135 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2382 SdHoareTripleChecker+Valid, 6205 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:10:20,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2382 Valid, 6205 Invalid, 1057 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1053 Invalid, 4 Unknown, 0 Unchecked, 23.4s Time] [2024-11-09 07:10:20,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3332 states. [2024-11-09 07:10:20,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3332 to 3332. [2024-11-09 07:10:20,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3332 states, 2047 states have (on average 1.2867611138251098) internal successors, (2634), 2077 states have internal predecessors, (2634), 1064 states have call successors, (1064), 221 states have call predecessors, (1064), 220 states have return successors, (1061), 1051 states have call predecessors, (1061), 1061 states have call successors, (1061) [2024-11-09 07:10:20,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3332 states to 3332 states and 4759 transitions. [2024-11-09 07:10:20,509 INFO L78 Accepts]: Start accepts. Automaton has 3332 states and 4759 transitions. Word has length 165 [2024-11-09 07:10:20,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:10:20,510 INFO L471 AbstractCegarLoop]: Abstraction has 3332 states and 4759 transitions. [2024-11-09 07:10:20,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 07:10:20,511 INFO L276 IsEmpty]: Start isEmpty. Operand 3332 states and 4759 transitions. [2024-11-09 07:10:20,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-09 07:10:20,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:10:20,522 INFO L215 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 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] [2024-11-09 07:10:20,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:10:20,523 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:10:20,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:20,524 INFO L85 PathProgramCache]: Analyzing trace with hash -394427193, now seen corresponding path program 1 times [2024-11-09 07:10:20,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:10:20,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680075422] [2024-11-09 07:10:20,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:20,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:10:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:29,555 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2024-11-09 07:10:29,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:10:29,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680075422] [2024-11-09 07:10:29,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680075422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:29,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:29,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:10:29,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382538509] [2024-11-09 07:10:29,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:29,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:10:29,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:10:29,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:10:29,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:10:29,563 INFO L87 Difference]: Start difference. First operand 3332 states and 4759 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 07:10:31,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:33,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:36,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:42,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:53,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:57,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:10:57,079 INFO L93 Difference]: Finished difference Result 6421 states and 9261 transitions. [2024-11-09 07:10:57,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:10:57,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 170 [2024-11-09 07:10:57,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:10:57,168 INFO L225 Difference]: With dead ends: 6421 [2024-11-09 07:10:57,168 INFO L226 Difference]: Without dead ends: 6419 [2024-11-09 07:10:57,179 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:10:57,181 INFO L432 NwaCegarLoop]: 2151 mSDtfsCounter, 2267 mSDsluCounter, 6325 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 8476 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:10:57,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2268 Valid, 8476 Invalid, 1436 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1430 Invalid, 4 Unknown, 0 Unchecked, 27.0s Time] [2024-11-09 07:10:57,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6419 states. [2024-11-09 07:10:57,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6419 to 6373. [2024-11-09 07:10:57,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6373 states, 3918 states have (on average 1.2909647779479325) internal successors, (5058), 3994 states have internal predecessors, (5058), 2025 states have call successors, (2025), 431 states have call predecessors, (2025), 429 states have return successors, (2115), 1981 states have call predecessors, (2115), 2019 states have call successors, (2115) [2024-11-09 07:10:57,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6373 states to 6373 states and 9198 transitions. [2024-11-09 07:10:57,813 INFO L78 Accepts]: Start accepts. Automaton has 6373 states and 9198 transitions. Word has length 170 [2024-11-09 07:10:57,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:10:57,816 INFO L471 AbstractCegarLoop]: Abstraction has 6373 states and 9198 transitions. [2024-11-09 07:10:57,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 07:10:57,817 INFO L276 IsEmpty]: Start isEmpty. Operand 6373 states and 9198 transitions. [2024-11-09 07:10:57,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-09 07:10:57,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:10:57,831 INFO L215 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 3, 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] [2024-11-09 07:10:57,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:10:57,832 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:10:57,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:57,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1804216414, now seen corresponding path program 1 times [2024-11-09 07:10:57,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:10:57,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224588963] [2024-11-09 07:10:57,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:57,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:11:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:11:06,847 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2024-11-09 07:11:06,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:11:06,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224588963] [2024-11-09 07:11:06,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224588963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:11:06,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:11:06,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:11:06,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382162339] [2024-11-09 07:11:06,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:11:06,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:11:06,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:11:06,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:11:06,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:11:06,855 INFO L87 Difference]: Start difference. First operand 6373 states and 9198 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-09 07:11:08,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:11:11,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:11:13,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:11:20,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:11:25,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:11:34,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:11:34,585 INFO L93 Difference]: Finished difference Result 12393 states and 18149 transitions. [2024-11-09 07:11:34,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:11:34,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 175 [2024-11-09 07:11:34,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:11:34,725 INFO L225 Difference]: With dead ends: 12393 [2024-11-09 07:11:34,726 INFO L226 Difference]: Without dead ends: 12389 [2024-11-09 07:11:34,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:11:34,742 INFO L432 NwaCegarLoop]: 2151 mSDtfsCounter, 2251 mSDsluCounter, 6331 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2252 SdHoareTripleChecker+Valid, 8482 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:11:34,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2252 Valid, 8482 Invalid, 1436 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1431 Invalid, 3 Unknown, 0 Unchecked, 27.0s Time] [2024-11-09 07:11:34,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12389 states. [2024-11-09 07:11:35,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12389 to 12323. [2024-11-09 07:11:35,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12323 states, 7590 states have (on average 1.2944664031620554) internal successors, (9825), 7755 states have internal predecessors, (9825), 3899 states have call successors, (3899), 844 states have call predecessors, (3899), 833 states have return successors, (4335), 3787 states have call predecessors, (4335), 3887 states have call successors, (4335) [2024-11-09 07:11:35,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12323 states to 12323 states and 18059 transitions. [2024-11-09 07:11:35,986 INFO L78 Accepts]: Start accepts. Automaton has 12323 states and 18059 transitions. Word has length 175 [2024-11-09 07:11:35,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:11:35,988 INFO L471 AbstractCegarLoop]: Abstraction has 12323 states and 18059 transitions. [2024-11-09 07:11:35,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-09 07:11:35,990 INFO L276 IsEmpty]: Start isEmpty. Operand 12323 states and 18059 transitions. [2024-11-09 07:11:36,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-09 07:11:36,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:11:36,006 INFO L215 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 6, 6, 4, 3, 3, 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] [2024-11-09 07:11:36,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:11:36,006 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:11:36,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:11:36,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1292053239, now seen corresponding path program 1 times [2024-11-09 07:11:36,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:11:36,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880716437] [2024-11-09 07:11:36,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:11:36,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:11:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:11:46,506 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2024-11-09 07:11:46,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:11:46,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880716437] [2024-11-09 07:11:46,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880716437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:11:46,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:11:46,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:11:46,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442891815] [2024-11-09 07:11:46,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:11:46,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:11:46,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:11:46,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:11:46,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:11:46,510 INFO L87 Difference]: Start difference. First operand 12323 states and 18059 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-09 07:11:48,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:11:50,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:11:53,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:00,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:06,957 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:09,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:12,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:17,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:12:17,387 INFO L93 Difference]: Finished difference Result 24617 states and 36861 transitions. [2024-11-09 07:12:17,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:12:17,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 189 [2024-11-09 07:12:17,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:12:17,635 INFO L225 Difference]: With dead ends: 24617 [2024-11-09 07:12:17,635 INFO L226 Difference]: Without dead ends: 24565 [2024-11-09 07:12:17,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:12:17,672 INFO L432 NwaCegarLoop]: 2092 mSDtfsCounter, 2395 mSDsluCounter, 6225 mSDsCounter, 0 mSdLazyCounter, 1406 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 8317 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1406 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:12:17,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 8317 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1406 Invalid, 3 Unknown, 0 Unchecked, 29.8s Time] [2024-11-09 07:12:17,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24565 states. [2024-11-09 07:12:19,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24565 to 24549. [2024-11-09 07:12:19,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24549 states, 15127 states have (on average 1.2951014741852318) internal successors, (19591), 15460 states have internal predecessors, (19591), 7765 states have call successors, (7765), 1678 states have call predecessors, (7765), 1656 states have return successors, (9424), 7538 states have call predecessors, (9424), 7744 states have call successors, (9424) [2024-11-09 07:12:20,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24549 states to 24549 states and 36780 transitions. [2024-11-09 07:12:20,124 INFO L78 Accepts]: Start accepts. Automaton has 24549 states and 36780 transitions. Word has length 189 [2024-11-09 07:12:20,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:12:20,126 INFO L471 AbstractCegarLoop]: Abstraction has 24549 states and 36780 transitions. [2024-11-09 07:12:20,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-09 07:12:20,127 INFO L276 IsEmpty]: Start isEmpty. Operand 24549 states and 36780 transitions. [2024-11-09 07:12:20,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-09 07:12:20,175 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:12:20,175 INFO L215 NwaCegarLoop]: trace histogram [18, 11, 11, 11, 11, 11, 11, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:12:20,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:12:20,178 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:12:20,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:12:20,183 INFO L85 PathProgramCache]: Analyzing trace with hash -868812442, now seen corresponding path program 1 times [2024-11-09 07:12:20,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:12:20,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968457307] [2024-11-09 07:12:20,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:20,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:12:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:29,622 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2024-11-09 07:12:29,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:12:29,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968457307] [2024-11-09 07:12:29,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968457307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:12:29,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:12:29,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:12:29,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264144846] [2024-11-09 07:12:29,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:12:29,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:12:29,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:12:29,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:12:29,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:12:29,627 INFO L87 Difference]: Start difference. First operand 24549 states and 36780 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-09 07:12:31,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:33,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:41,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:42,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:45,538 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 [] [2024-11-09 07:12:51,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:12:51,408 INFO L93 Difference]: Finished difference Result 69805 states and 103102 transitions. [2024-11-09 07:12:51,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:12:51,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 229 [2024-11-09 07:12:51,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:12:51,762 INFO L225 Difference]: With dead ends: 69805 [2024-11-09 07:12:51,762 INFO L226 Difference]: Without dead ends: 45279 [2024-11-09 07:12:51,964 INFO L431 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 [2024-11-09 07:12:51,967 INFO L432 NwaCegarLoop]: 2881 mSDtfsCounter, 2178 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 29 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 4899 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:12:51,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 4899 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 862 Invalid, 4 Unknown, 0 Unchecked, 19.9s Time] [2024-11-09 07:12:52,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45279 states. [2024-11-09 07:12:55,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45279 to 45134. [2024-11-09 07:12:55,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45134 states, 27680 states have (on average 1.2784682080924856) internal successors, (35388), 28271 states have internal predecessors, (35388), 14241 states have call successors, (14241), 3200 states have call predecessors, (14241), 3212 states have return successors, (16130), 13918 states have call predecessors, (16130), 14220 states have call successors, (16130) [2024-11-09 07:12:55,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45134 states to 45134 states and 65759 transitions. [2024-11-09 07:12:55,900 INFO L78 Accepts]: Start accepts. Automaton has 45134 states and 65759 transitions. Word has length 229 [2024-11-09 07:12:55,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:12:55,900 INFO L471 AbstractCegarLoop]: Abstraction has 45134 states and 65759 transitions. [2024-11-09 07:12:55,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-09 07:12:55,901 INFO L276 IsEmpty]: Start isEmpty. Operand 45134 states and 65759 transitions. [2024-11-09 07:12:55,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-09 07:12:55,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:12:55,952 INFO L215 NwaCegarLoop]: trace histogram [19, 11, 11, 11, 11, 11, 11, 5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:12:55,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:12:55,953 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:12:55,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:12:55,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1716212649, now seen corresponding path program 1 times [2024-11-09 07:12:55,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:12:55,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414161953] [2024-11-09 07:12:55,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:55,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:13:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:13:04,667 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked. [2024-11-09 07:13:04,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:13:04,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414161953] [2024-11-09 07:13:04,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414161953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:13:04,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:13:04,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:13:04,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383362328] [2024-11-09 07:13:04,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:13:04,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:13:04,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:13:04,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:13:04,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:13:04,672 INFO L87 Difference]: Start difference. First operand 45134 states and 65759 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-09 07:13:06,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:13:08,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:13:11,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:13:12,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:13:22,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:13:22,442 INFO L93 Difference]: Finished difference Result 85637 states and 124670 transitions. [2024-11-09 07:13:22,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:13:22,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 243 [2024-11-09 07:13:22,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:13:22,776 INFO L225 Difference]: With dead ends: 85637 [2024-11-09 07:13:22,776 INFO L226 Difference]: Without dead ends: 40526 [2024-11-09 07:13:23,019 INFO L431 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 [2024-11-09 07:13:23,020 INFO L432 NwaCegarLoop]: 3245 mSDtfsCounter, 2304 mSDsluCounter, 2045 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2304 SdHoareTripleChecker+Valid, 5290 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:13:23,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2304 Valid, 5290 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 885 Invalid, 2 Unknown, 0 Unchecked, 16.1s Time] [2024-11-09 07:13:23,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40526 states. [2024-11-09 07:13:25,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40526 to 40404. [2024-11-09 07:13:25,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40404 states, 24944 states have (on average 1.277822322001283) internal successors, (31874), 25493 states have internal predecessors, (31874), 12515 states have call successors, (12515), 2949 states have call predecessors, (12515), 2944 states have return successors, (14243), 12189 states have call predecessors, (14243), 12494 states have call successors, (14243) [2024-11-09 07:13:25,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40404 states to 40404 states and 58632 transitions. [2024-11-09 07:13:26,038 INFO L78 Accepts]: Start accepts. Automaton has 40404 states and 58632 transitions. Word has length 243 [2024-11-09 07:13:26,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:13:26,039 INFO L471 AbstractCegarLoop]: Abstraction has 40404 states and 58632 transitions. [2024-11-09 07:13:26,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-09 07:13:26,039 INFO L276 IsEmpty]: Start isEmpty. Operand 40404 states and 58632 transitions. [2024-11-09 07:13:26,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-09 07:13:26,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:13:26,072 INFO L215 NwaCegarLoop]: trace histogram [19, 11, 11, 11, 11, 11, 11, 6, 6, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:13:26,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 07:13:26,073 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:13:26,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:13:26,073 INFO L85 PathProgramCache]: Analyzing trace with hash -799926841, now seen corresponding path program 1 times [2024-11-09 07:13:26,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:13:26,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725920868] [2024-11-09 07:13:26,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:13:26,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:13:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:13:36,854 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2024-11-09 07:13:36,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:13:36,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725920868] [2024-11-09 07:13:36,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725920868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:13:36,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:13:36,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:13:36,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376168044] [2024-11-09 07:13:36,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:13:36,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:13:36,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:13:36,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:13:36,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:13:36,859 INFO L87 Difference]: Start difference. First operand 40404 states and 58632 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-09 07:13:38,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:13:41,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:13:45,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:13:50,260 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 [] [2024-11-09 07:13:59,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:13:59,778 INFO L93 Difference]: Finished difference Result 97251 states and 141300 transitions. [2024-11-09 07:13:59,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:13:59,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 260 [2024-11-09 07:13:59,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:14:00,246 INFO L225 Difference]: With dead ends: 97251 [2024-11-09 07:14:00,246 INFO L226 Difference]: Without dead ends: 57445 [2024-11-09 07:14:00,790 INFO L431 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 [2024-11-09 07:14:00,794 INFO L432 NwaCegarLoop]: 4030 mSDtfsCounter, 2301 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 11 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 6071 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:14:00,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2301 Valid, 6071 Invalid, 1077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1062 Invalid, 4 Unknown, 0 Unchecked, 20.6s Time] [2024-11-09 07:14:00,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57445 states. [2024-11-09 07:14:03,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57445 to 57323. [2024-11-09 07:14:03,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57323 states, 35483 states have (on average 1.2783586506214244) internal successors, (45360), 36268 states have internal predecessors, (45360), 17651 states have call successors, (17651), 4200 states have call predecessors, (17651), 4188 states have return successors, (20173), 17178 states have call predecessors, (20173), 17630 states have call successors, (20173) [2024-11-09 07:14:03,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57323 states to 57323 states and 83184 transitions. [2024-11-09 07:14:04,003 INFO L78 Accepts]: Start accepts. Automaton has 57323 states and 83184 transitions. Word has length 260 [2024-11-09 07:14:04,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:14:04,004 INFO L471 AbstractCegarLoop]: Abstraction has 57323 states and 83184 transitions. [2024-11-09 07:14:04,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-09 07:14:04,004 INFO L276 IsEmpty]: Start isEmpty. Operand 57323 states and 83184 transitions. [2024-11-09 07:14:04,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-09 07:14:04,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:14:04,041 INFO L215 NwaCegarLoop]: trace histogram [21, 11, 11, 11, 11, 11, 11, 8, 8, 5, 5, 5, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:14:04,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 07:14:04,041 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:14:04,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:14:04,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1890495592, now seen corresponding path program 1 times [2024-11-09 07:14:04,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:14:04,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434190855] [2024-11-09 07:14:04,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:14:04,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:14:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:14:13,092 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2024-11-09 07:14:13,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:14:13,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434190855] [2024-11-09 07:14:13,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434190855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:14:13,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:14:13,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:14:13,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107099040] [2024-11-09 07:14:13,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:14:13,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:14:13,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:14:13,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:14:13,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:14:13,098 INFO L87 Difference]: Start difference. First operand 57323 states and 83184 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2024-11-09 07:14:15,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:17,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:20,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:23,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:29,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:38,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:14:38,082 INFO L93 Difference]: Finished difference Result 134617 states and 194629 transitions. [2024-11-09 07:14:38,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:14:38,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 296 [2024-11-09 07:14:38,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:14:38,716 INFO L225 Difference]: With dead ends: 134617 [2024-11-09 07:14:38,717 INFO L226 Difference]: Without dead ends: 77892 [2024-11-09 07:14:39,132 INFO L431 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 [2024-11-09 07:14:39,133 INFO L432 NwaCegarLoop]: 3948 mSDtfsCounter, 2190 mSDsluCounter, 2016 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 28 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2190 SdHoareTripleChecker+Valid, 5964 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:14:39,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2190 Valid, 5964 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1066 Invalid, 4 Unknown, 0 Unchecked, 21.5s Time] [2024-11-09 07:14:39,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77892 states. [2024-11-09 07:14:43,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77892 to 77763. [2024-11-09 07:14:43,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77763 states, 48225 states have (on average 1.273675479523069) internal successors, (61423), 49254 states have internal predecessors, (61423), 23699 states have call successors, (23699), 5833 states have call predecessors, (23699), 5838 states have return successors, (26336), 23127 states have call predecessors, (26336), 23678 states have call successors, (26336) [2024-11-09 07:14:43,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77763 states to 77763 states and 111458 transitions. [2024-11-09 07:14:44,063 INFO L78 Accepts]: Start accepts. Automaton has 77763 states and 111458 transitions. Word has length 296 [2024-11-09 07:14:44,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:14:44,064 INFO L471 AbstractCegarLoop]: Abstraction has 77763 states and 111458 transitions. [2024-11-09 07:14:44,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2024-11-09 07:14:44,065 INFO L276 IsEmpty]: Start isEmpty. Operand 77763 states and 111458 transitions. [2024-11-09 07:14:44,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-09 07:14:44,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:14:44,114 INFO L215 NwaCegarLoop]: trace histogram [23, 11, 11, 11, 11, 11, 11, 8, 8, 6, 6, 6, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:14:44,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:14:44,114 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:14:44,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:14:44,115 INFO L85 PathProgramCache]: Analyzing trace with hash 95842437, now seen corresponding path program 1 times [2024-11-09 07:14:44,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:14:44,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191810152] [2024-11-09 07:14:44,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:14:44,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:14:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat