./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh --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 28669211a2ef49b5efd7443ec92409c5f49218a96d1252c934deb7757bde86cd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:46:33,758 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:46:33,826 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 15:46:33,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:46:33,832 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:46:33,857 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:46:33,857 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:46:33,858 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:46:33,858 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:46:33,859 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:46:33,859 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:46:33,860 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:46:33,861 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:46:33,861 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:46:33,861 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:46:33,862 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:46:33,862 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:46:33,863 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:46:33,863 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:46:33,864 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:46:33,864 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:46:33,865 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:46:33,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:46:33,866 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:46:33,867 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:46:33,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:46:33,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:46:33,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:46:33,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:46:33,869 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:46:33,869 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:46:33,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:46:33,870 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:46:33,870 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:46:33,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:46:33,871 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:46:33,871 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:46:33,871 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:46:33,871 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:46:33,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:46:33,872 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:46:33,872 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:46:33,872 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:46:33,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:46:33,873 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_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 28669211a2ef49b5efd7443ec92409c5f49218a96d1252c934deb7757bde86cd [2023-12-02 15:46:34,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:46:34,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:46:34,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:46:34,127 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:46:34,127 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:46:34,128 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-12-02 15:46:36,838 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:46:37,358 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:46:37,359 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-12-02 15:46:37,407 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/data/3a0b8f692/b0217e7686cc41e380cf5893d05c64c9/FLAGc4ebaf37e [2023-12-02 15:46:37,422 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/data/3a0b8f692/b0217e7686cc41e380cf5893d05c64c9 [2023-12-02 15:46:37,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:46:37,426 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:46:37,428 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:46:37,428 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:46:37,433 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:46:37,434 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:46:37" (1/1) ... [2023-12-02 15:46:37,435 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541f94dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:37, skipping insertion in model container [2023-12-02 15:46:37,435 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:46:37" (1/1) ... [2023-12-02 15:46:37,656 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:46:40,618 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[387086,387099] [2023-12-02 15:46:40,622 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[387231,387244] [2023-12-02 15:46:40,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:46:40,683 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:46:40,767 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"); [5254] [2023-12-02 15:46:40,769 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)); [5261] [2023-12-02 15:46:40,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5268] [2023-12-02 15:46:40,771 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/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5309-5310] [2023-12-02 15:46:40,772 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"); [5315-5317] [2023-12-02 15:46:40,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5463] [2023-12-02 15:46:40,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5471] [2023-12-02 15:46:40,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5478] [2023-12-02 15:46:40,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5485] [2023-12-02 15:46:40,779 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)); [5589-5590] [2023-12-02 15:46:40,781 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)); [5623-5624] [2023-12-02 15:46:40,782 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (103), "i" (12UL)); [5660-5661] [2023-12-02 15:46:40,782 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (115), "i" (12UL)); [5697-5698] [2023-12-02 15:46:40,788 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)); [5957-5958] [2023-12-02 15:46:40,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5964] [2023-12-02 15:46:40,885 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8592] [2023-12-02 15:46:40,890 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)(& np->rx_skbuff) + ((unsigned long )np->cur_rx & 31UL)) [8748] [2023-12-02 15:46:40,931 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/natsemi/natsemi.c"), "i" (3315), "i" (12UL)); [10300-10301] [2023-12-02 15:46:40,985 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[387086,387099] [2023-12-02 15:46:40,985 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i[387231,387244] [2023-12-02 15:46:40,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:46:41,189 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:46:41,189 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:46:41,195 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:46:41,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:41 WrapperNode [2023-12-02 15:46:41,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:46:41,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:46:41,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:46:41,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:46:41,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:41" (1/1) ... [2023-12-02 15:46:41,296 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:41" (1/1) ... [2023-12-02 15:46:41,547 INFO L138 Inliner]: procedures = 510, calls = 2700, calls flagged for inlining = 247, calls inlined = 217, statements flattened = 6686 [2023-12-02 15:46:41,558 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:46:41,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:46:41,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:46:41,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:46:41,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:41" (1/1) ... [2023-12-02 15:46:41,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:41" (1/1) ... [2023-12-02 15:46:41,644 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:41" (1/1) ... [2023-12-02 15:46:41,644 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:41" (1/1) ... [2023-12-02 15:46:41,793 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:41" (1/1) ... [2023-12-02 15:46:41,822 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:41" (1/1) ... [2023-12-02 15:46:41,873 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:41" (1/1) ... [2023-12-02 15:46:41,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:41" (1/1) ... [2023-12-02 15:46:41,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:46:41,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:46:41,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:46:41,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:46:41,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:41" (1/1) ... [2023-12-02 15:46:41,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:46:42,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:46:42,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:46:42,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:46:42,098 INFO L130 BoogieDeclarations]: Found specification of procedure drain_rx [2023-12-02 15:46:42,099 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_rx [2023-12-02 15:46:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-12-02 15:46:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2023-12-02 15:46:42,099 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2023-12-02 15:46:42,099 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_write [2023-12-02 15:46:42,100 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_write [2023-12-02 15:46:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-12-02 15:46:42,100 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-12-02 15:46:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 15:46:42,100 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 15:46:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-12-02 15:46:42,100 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-12-02 15:46:42,100 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_done [2023-12-02 15:46:42,101 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_done [2023-12-02 15:46:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_84 [2023-12-02 15:46:42,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_84 [2023-12-02 15:46:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-12-02 15:46:42,101 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-12-02 15:46:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 15:46:42,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 15:46:42,101 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_rx [2023-12-02 15:46:42,102 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_rx [2023-12-02 15:46:42,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_92 [2023-12-02 15:46:42,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_92 [2023-12-02 15:46:42,102 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-12-02 15:46:42,102 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-12-02 15:46:42,102 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_ring [2023-12-02 15:46:42,102 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_ring [2023-12-02 15:46:42,102 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2023-12-02 15:46:42,102 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2023-12-02 15:46:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-12-02 15:46:42,103 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-12-02 15:46:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-12-02 15:46:42,103 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-12-02 15:46:42,103 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-12-02 15:46:42,103 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-12-02 15:46:42,104 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-12-02 15:46:42,104 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-12-02 15:46:42,104 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-12-02 15:46:42,104 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-12-02 15:46:42,104 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-12-02 15:46:42,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-12-02 15:46:42,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-12-02 15:46:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-12-02 15:46:42,105 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-12-02 15:46:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-12-02 15:46:42,105 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-12-02 15:46:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-12-02 15:46:42,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-12-02 15:46:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2023-12-02 15:46:42,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2023-12-02 15:46:42,105 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-12-02 15:46:42,106 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-12-02 15:46:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2023-12-02 15:46:42,106 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2023-12-02 15:46:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:46:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-12-02 15:46:42,106 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-12-02 15:46:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-12-02 15:46:42,106 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-12-02 15:46:42,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_108 [2023-12-02 15:46:42,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_108 [2023-12-02 15:46:42,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2023-12-02 15:46:42,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2023-12-02 15:46:42,107 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2023-12-02 15:46:42,107 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2023-12-02 15:46:42,107 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-12-02 15:46:42,107 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-12-02 15:46:42,107 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_stop_rxtx [2023-12-02 15:46:42,107 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_stop_rxtx [2023-12-02 15:46:42,108 INFO L130 BoogieDeclarations]: Found specification of procedure ns_tx_timeout [2023-12-02 15:46:42,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_tx_timeout [2023-12-02 15:46:42,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 15:46:42,108 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-12-02 15:46:42,108 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-12-02 15:46:42,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-12-02 15:46:42,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-12-02 15:46:42,108 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_reset [2023-12-02 15:46:42,108 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_reset [2023-12-02 15:46:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 15:46:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-12-02 15:46:42,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-12-02 15:46:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:46:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2023-12-02 15:46:42,109 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2023-12-02 15:46:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-12-02 15:46:42,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-12-02 15:46:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-12-02 15:46:42,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-12-02 15:46:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure move_int_phy [2023-12-02 15:46:42,110 INFO L138 BoogieDeclarations]: Found implementation of procedure move_int_phy [2023-12-02 15:46:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 15:46:42,110 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 15:46:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-12-02 15:46:42,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-12-02 15:46:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-12-02 15:46:42,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-12-02 15:46:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-12-02 15:46:42,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-12-02 15:46:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-12-02 15:46:42,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-12-02 15:46:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure enable_wol_mode [2023-12-02 15:46:42,111 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_wol_mode [2023-12-02 15:46:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_resume [2023-12-02 15:46:42,112 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_resume [2023-12-02 15:46:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2023-12-02 15:46:42,112 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2023-12-02 15:46:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 15:46:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-12-02 15:46:42,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-12-02 15:46:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-12-02 15:46:42,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-12-02 15:46:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2023-12-02 15:46:42,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2023-12-02 15:46:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:46:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2023-12-02 15:46:42,113 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2023-12-02 15:46:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-12-02 15:46:42,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-12-02 15:46:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-12-02 15:46:42,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-12-02 15:46:42,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 15:46:42,114 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 15:46:42,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 15:46:42,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-12-02 15:46:42,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-12-02 15:46:42,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-12-02 15:46:42,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-12-02 15:46:42,114 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-12-02 15:46:42,114 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-12-02 15:46:42,114 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_poll_controller [2023-12-02 15:46:42,114 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_poll_controller [2023-12-02 15:46:42,115 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-12-02 15:46:42,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-12-02 15:46:42,115 INFO L130 BoogieDeclarations]: Found specification of procedure check_link [2023-12-02 15:46:42,115 INFO L138 BoogieDeclarations]: Found implementation of procedure check_link [2023-12-02 15:46:42,115 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2023-12-02 15:46:42,115 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2023-12-02 15:46:42,115 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-12-02 15:46:42,115 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-12-02 15:46:42,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-12-02 15:46:42,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-12-02 15:46:42,116 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-12-02 15:46:42,116 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-12-02 15:46:42,116 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-12-02 15:46:42,116 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-12-02 15:46:42,116 INFO L130 BoogieDeclarations]: Found specification of procedure init_phy_fixup [2023-12-02 15:46:42,116 INFO L138 BoogieDeclarations]: Found implementation of procedure init_phy_fixup [2023-12-02 15:46:42,116 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2023-12-02 15:46:42,116 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2023-12-02 15:46:42,116 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2023-12-02 15:46:42,117 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2023-12-02 15:46:42,117 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_result [2023-12-02 15:46:42,117 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_result [2023-12-02 15:46:42,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:46:42,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:46:42,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 15:46:42,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 15:46:42,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 15:46:42,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 15:46:42,117 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_external [2023-12-02 15:46:42,118 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_external [2023-12-02 15:46:42,118 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2023-12-02 15:46:42,118 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2023-12-02 15:46:42,118 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-12-02 15:46:42,118 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-12-02 15:46:42,118 INFO L130 BoogieDeclarations]: Found specification of procedure get_eeprom_len [2023-12-02 15:46:42,118 INFO L138 BoogieDeclarations]: Found implementation of procedure get_eeprom_len [2023-12-02 15:46:42,118 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-12-02 15:46:42,118 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-12-02 15:46:42,118 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2023-12-02 15:46:42,118 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2023-12-02 15:46:42,119 INFO L130 BoogieDeclarations]: Found specification of procedure get_regs_len [2023-12-02 15:46:42,119 INFO L138 BoogieDeclarations]: Found implementation of procedure get_regs_len [2023-12-02 15:46:42,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-12-02 15:46:42,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-12-02 15:46:42,119 INFO L130 BoogieDeclarations]: Found specification of procedure nway_reset [2023-12-02 15:46:42,119 INFO L138 BoogieDeclarations]: Found implementation of procedure nway_reset [2023-12-02 15:46:42,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2023-12-02 15:46:42,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2023-12-02 15:46:42,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_91 [2023-12-02 15:46:42,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_91 [2023-12-02 15:46:42,120 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-12-02 15:46:42,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-12-02 15:46:42,120 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2023-12-02 15:46:42,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2023-12-02 15:46:42,120 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2023-12-02 15:46:42,120 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2023-12-02 15:46:42,120 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-12-02 15:46:42,120 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-12-02 15:46:42,120 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-12-02 15:46:42,120 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-12-02 15:46:42,121 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2023-12-02 15:46:42,121 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2023-12-02 15:46:42,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:46:42,121 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_internal [2023-12-02 15:46:42,121 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_internal [2023-12-02 15:46:42,121 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-12-02 15:46:42,121 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-12-02 15:46:42,121 INFO L130 BoogieDeclarations]: Found specification of procedure dump_ring [2023-12-02 15:46:42,121 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_ring [2023-12-02 15:46:42,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 15:46:42,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 15:46:42,122 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 15:46:42,122 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 15:46:42,122 INFO L130 BoogieDeclarations]: Found specification of procedure intr_handler [2023-12-02 15:46:42,122 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_handler [2023-12-02 15:46:42,122 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-12-02 15:46:42,122 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-12-02 15:46:42,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2023-12-02 15:46:42,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2023-12-02 15:46:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-12-02 15:46:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-12-02 15:46:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-12-02 15:46:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-12-02 15:46:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure __get_stats [2023-12-02 15:46:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_stats [2023-12-02 15:46:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2023-12-02 15:46:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2023-12-02 15:46:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-12-02 15:46:42,123 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-12-02 15:46:42,123 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2023-12-02 15:46:42,124 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2023-12-02 15:46:42,124 INFO L130 BoogieDeclarations]: Found specification of procedure drain_ring [2023-12-02 15:46:42,124 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_ring [2023-12-02 15:46:42,124 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-12-02 15:46:42,124 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-12-02 15:46:42,124 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-12-02 15:46:42,124 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-12-02 15:46:42,124 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-12-02 15:46:42,124 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-12-02 15:46:42,124 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-12-02 15:46:42,125 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-12-02 15:46:42,125 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_remove1 [2023-12-02 15:46:42,125 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_remove1 [2023-12-02 15:46:42,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2023-12-02 15:46:42,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_natsemi_exit_mod_15_2 [2023-12-02 15:46:42,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:46:42,125 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring [2023-12-02 15:46:42,125 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring [2023-12-02 15:46:42,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 15:46:42,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 15:46:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_disable [2023-12-02 15:46:42,126 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_disable [2023-12-02 15:46:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2023-12-02 15:46:42,126 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2023-12-02 15:46:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-12-02 15:46:42,126 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-12-02 15:46:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-12-02 15:46:42,126 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-12-02 15:46:42,126 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2023-12-02 15:46:42,126 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2023-12-02 15:46:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioaddr [2023-12-02 15:46:42,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioaddr [2023-12-02 15:46:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2023-12-02 15:46:42,127 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2023-12-02 15:46:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure refill_rx [2023-12-02 15:46:42,127 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_rx [2023-12-02 15:46:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-12-02 15:46:42,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-12-02 15:46:42,127 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2023-12-02 15:46:42,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2023-12-02 15:46:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2023-12-02 15:46:42,128 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2023-12-02 15:46:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure drain_tx [2023-12-02 15:46:42,128 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_tx [2023-12-02 15:46:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_enable [2023-12-02 15:46:42,128 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_enable [2023-12-02 15:46:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-12-02 15:46:42,128 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-12-02 15:46:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:46:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_read [2023-12-02 15:46:42,129 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_read [2023-12-02 15:46:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-12-02 15:46:42,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-12-02 15:46:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-12-02 15:46:42,129 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-12-02 15:46:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_107 [2023-12-02 15:46:42,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_107 [2023-12-02 15:46:42,974 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:46:42,979 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:46:43,500 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 15:46:47,436 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-12-02 15:46:47,578 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:46:51,520 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:46:51,521 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 15:46:51,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:46:51 BoogieIcfgContainer [2023-12-02 15:46:51,523 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:46:51,526 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:46:51,526 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:46:51,529 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:46:51,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:46:37" (1/3) ... [2023-12-02 15:46:51,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a5b4a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:46:51, skipping insertion in model container [2023-12-02 15:46:51,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:46:41" (2/3) ... [2023-12-02 15:46:51,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75a5b4a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:46:51, skipping insertion in model container [2023-12-02 15:46:51,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:46:51" (3/3) ... [2023-12-02 15:46:51,532 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-natsemi-natsemi.cil.i [2023-12-02 15:46:51,552 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:46:51,553 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:46:51,646 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:46:51,653 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@63664b8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:46:51,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:46:51,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 2084 states, 1156 states have (on average 1.259515570934256) internal successors, (1456), 1189 states have internal predecessors, (1456), 797 states have call successors, (797), 131 states have call predecessors, (797), 130 states have return successors, (791), 782 states have call predecessors, (791), 791 states have call successors, (791) [2023-12-02 15:46:51,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-12-02 15:46:51,698 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:46:51,699 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 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] [2023-12-02 15:46:51,699 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:46:51,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:46:51,705 INFO L85 PathProgramCache]: Analyzing trace with hash -365764907, now seen corresponding path program 1 times [2023-12-02 15:46:51,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:46:51,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428244541] [2023-12-02 15:46:51,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:46:51,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:46:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:46:52,412 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2023-12-02 15:46:52,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:46:52,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428244541] [2023-12-02 15:46:52,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428244541] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:46:52,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:46:52,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:46:52,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914108062] [2023-12-02 15:46:52,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:46:52,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:46:52,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:46:52,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:46:52,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:46:52,457 INFO L87 Difference]: Start difference. First operand has 2084 states, 1156 states have (on average 1.259515570934256) internal successors, (1456), 1189 states have internal predecessors, (1456), 797 states have call successors, (797), 131 states have call predecessors, (797), 130 states have return successors, (791), 782 states have call predecessors, (791), 791 states have call successors, (791) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-02 15:46:57,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:46:58,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:46:59,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:46:59,190 INFO L93 Difference]: Finished difference Result 5761 states and 8422 transitions. [2023-12-02 15:46:59,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:46:59,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 194 [2023-12-02 15:46:59,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:46:59,235 INFO L225 Difference]: With dead ends: 5761 [2023-12-02 15:46:59,236 INFO L226 Difference]: Without dead ends: 3622 [2023-12-02 15:46:59,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:46:59,254 INFO L413 NwaCegarLoop]: 2663 mSDtfsCounter, 2355 mSDsluCounter, 2597 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2355 SdHoareTripleChecker+Valid, 5260 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-12-02 15:46:59,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2355 Valid, 5260 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-12-02 15:46:59,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2023-12-02 15:46:59,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 3618. [2023-12-02 15:46:59,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 1997 states have (on average 1.2463695543314972) internal successors, (2489), 2057 states have internal predecessors, (2489), 1376 states have call successors, (1376), 246 states have call predecessors, (1376), 244 states have return successors, (1377), 1354 states have call predecessors, (1377), 1376 states have call successors, (1377) [2023-12-02 15:46:59,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 5242 transitions. [2023-12-02 15:46:59,544 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 5242 transitions. Word has length 194 [2023-12-02 15:46:59,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:46:59,546 INFO L495 AbstractCegarLoop]: Abstraction has 3618 states and 5242 transitions. [2023-12-02 15:46:59,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-12-02 15:46:59,546 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 5242 transitions. [2023-12-02 15:46:59,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-12-02 15:46:59,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:46:59,556 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 5, 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] [2023-12-02 15:46:59,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:46:59,557 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:46:59,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:46:59,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1596628914, now seen corresponding path program 1 times [2023-12-02 15:46:59,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:46:59,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385931408] [2023-12-02 15:46:59,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:46:59,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:46:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:46:59,933 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 899 trivial. 0 not checked. [2023-12-02 15:46:59,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:46:59,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385931408] [2023-12-02 15:46:59,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385931408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:46:59,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:46:59,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:46:59,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930518858] [2023-12-02 15:46:59,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:46:59,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:46:59,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:46:59,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:46:59,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:46:59,938 INFO L87 Difference]: Start difference. First operand 3618 states and 5242 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-12-02 15:47:03,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:47:06,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:47:07,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:47:07,225 INFO L93 Difference]: Finished difference Result 10423 states and 15063 transitions. [2023-12-02 15:47:07,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:47:07,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 259 [2023-12-02 15:47:07,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:47:07,277 INFO L225 Difference]: With dead ends: 10423 [2023-12-02 15:47:07,277 INFO L226 Difference]: Without dead ends: 6836 [2023-12-02 15:47:07,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:47:07,298 INFO L413 NwaCegarLoop]: 2596 mSDtfsCounter, 2810 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 5016 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-12-02 15:47:07,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2810 Valid, 5016 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 764 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-12-02 15:47:07,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6836 states. [2023-12-02 15:47:07,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6836 to 6830. [2023-12-02 15:47:07,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6830 states, 3811 states have (on average 1.2492784046182104) internal successors, (4761), 3924 states have internal predecessors, (4761), 2545 states have call successors, (2545), 483 states have call predecessors, (2545), 473 states have return successors, (2554), 2493 states have call predecessors, (2554), 2545 states have call successors, (2554) [2023-12-02 15:47:07,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6830 states to 6830 states and 9860 transitions. [2023-12-02 15:47:07,710 INFO L78 Accepts]: Start accepts. Automaton has 6830 states and 9860 transitions. Word has length 259 [2023-12-02 15:47:07,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:47:07,711 INFO L495 AbstractCegarLoop]: Abstraction has 6830 states and 9860 transitions. [2023-12-02 15:47:07,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-12-02 15:47:07,712 INFO L276 IsEmpty]: Start isEmpty. Operand 6830 states and 9860 transitions. [2023-12-02 15:47:07,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2023-12-02 15:47:07,723 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:47:07,723 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 9, 6, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:47:07,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:47:07,724 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:47:07,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:47:07,725 INFO L85 PathProgramCache]: Analyzing trace with hash 560171911, now seen corresponding path program 1 times [2023-12-02 15:47:07,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:47:07,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950174194] [2023-12-02 15:47:07,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:47:07,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:47:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:47:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 988 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 988 trivial. 0 not checked. [2023-12-02 15:47:08,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:47:08,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950174194] [2023-12-02 15:47:08,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950174194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:47:08,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:47:08,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:47:08,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040292606] [2023-12-02 15:47:08,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:47:08,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:47:08,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:47:08,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:47:08,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:47:08,223 INFO L87 Difference]: Start difference. First operand 6830 states and 9860 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2023-12-02 15:47:13,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:47:15,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:47:16,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:47:18,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:47:19,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:47:19,116 INFO L93 Difference]: Finished difference Result 17399 states and 25068 transitions. [2023-12-02 15:47:19,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:47:19,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 316 [2023-12-02 15:47:19,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:47:19,205 INFO L225 Difference]: With dead ends: 17399 [2023-12-02 15:47:19,206 INFO L226 Difference]: Without dead ends: 10600 [2023-12-02 15:47:19,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:47:19,247 INFO L413 NwaCegarLoop]: 4043 mSDtfsCounter, 2057 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2057 SdHoareTripleChecker+Valid, 6592 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:47:19,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2057 Valid, 6592 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1046 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2023-12-02 15:47:19,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10600 states. [2023-12-02 15:47:19,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10600 to 10594. [2023-12-02 15:47:19,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10594 states, 5990 states have (on average 1.2497495826377296) internal successors, (7486), 6150 states have internal predecessors, (7486), 3847 states have call successors, (3847), 766 states have call predecessors, (3847), 756 states have return successors, (3856), 3783 states have call predecessors, (3856), 3847 states have call successors, (3856) [2023-12-02 15:47:19,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10594 states to 10594 states and 15189 transitions. [2023-12-02 15:47:19,987 INFO L78 Accepts]: Start accepts. Automaton has 10594 states and 15189 transitions. Word has length 316 [2023-12-02 15:47:19,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:47:19,988 INFO L495 AbstractCegarLoop]: Abstraction has 10594 states and 15189 transitions. [2023-12-02 15:47:19,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2023-12-02 15:47:19,989 INFO L276 IsEmpty]: Start isEmpty. Operand 10594 states and 15189 transitions. [2023-12-02 15:47:20,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-12-02 15:47:20,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:47:20,003 INFO L195 NwaCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 9, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:47:20,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 15:47:20,004 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:47:20,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:47:20,004 INFO L85 PathProgramCache]: Analyzing trace with hash -2056218734, now seen corresponding path program 1 times [2023-12-02 15:47:20,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:47:20,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82685717] [2023-12-02 15:47:20,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:47:20,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:47:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:47:20,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2023-12-02 15:47:20,602 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:47:20,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82685717] [2023-12-02 15:47:20,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82685717] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:47:20,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:47:20,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:47:20,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956112037] [2023-12-02 15:47:20,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:47:20,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:47:20,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:47:20,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:47:20,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:47:20,605 INFO L87 Difference]: Start difference. First operand 10594 states and 15189 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2023-12-02 15:47:29,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:47:29,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:47:29,558 INFO L93 Difference]: Finished difference Result 24923 states and 35722 transitions. [2023-12-02 15:47:29,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:47:29,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 367 [2023-12-02 15:47:29,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:47:29,637 INFO L225 Difference]: With dead ends: 24923 [2023-12-02 15:47:29,637 INFO L226 Difference]: Without dead ends: 14360 [2023-12-02 15:47:29,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:47:29,695 INFO L413 NwaCegarLoop]: 4343 mSDtfsCounter, 2058 mSDsluCounter, 2541 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2058 SdHoareTripleChecker+Valid, 6884 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:47:29,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2058 Valid, 6884 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1099 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2023-12-02 15:47:29,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14360 states. [2023-12-02 15:47:30,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14360 to 14354. [2023-12-02 15:47:30,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14354 states, 8165 states have (on average 1.2500918554807103) internal successors, (10207), 8372 states have internal predecessors, (10207), 5149 states have call successors, (5149), 1049 states have call predecessors, (5149), 1039 states have return successors, (5158), 5073 states have call predecessors, (5158), 5149 states have call successors, (5158) [2023-12-02 15:47:30,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14354 states to 14354 states and 20514 transitions. [2023-12-02 15:47:30,621 INFO L78 Accepts]: Start accepts. Automaton has 14354 states and 20514 transitions. Word has length 367 [2023-12-02 15:47:30,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:47:30,622 INFO L495 AbstractCegarLoop]: Abstraction has 14354 states and 20514 transitions. [2023-12-02 15:47:30,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2023-12-02 15:47:30,624 INFO L276 IsEmpty]: Start isEmpty. Operand 14354 states and 20514 transitions. [2023-12-02 15:47:30,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2023-12-02 15:47:30,635 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:47:30,635 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 9, 9, 9, 6, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:47:30,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 15:47:30,636 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:47:30,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:47:30,637 INFO L85 PathProgramCache]: Analyzing trace with hash 242288646, now seen corresponding path program 1 times [2023-12-02 15:47:30,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:47:30,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662176830] [2023-12-02 15:47:30,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:47:30,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:47:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:47:31,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2023-12-02 15:47:31,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:47:31,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662176830] [2023-12-02 15:47:31,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662176830] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:47:31,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:47:31,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:47:31,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13392441] [2023-12-02 15:47:31,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:47:31,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:47:31,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:47:31,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:47:31,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:47:31,194 INFO L87 Difference]: Start difference. First operand 14354 states and 20514 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2023-12-02 15:47:35,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:47:37,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:47:37,072 INFO L93 Difference]: Finished difference Result 28965 states and 41516 transitions. [2023-12-02 15:47:37,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:47:37,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 429 [2023-12-02 15:47:37,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:47:37,157 INFO L225 Difference]: With dead ends: 28965 [2023-12-02 15:47:37,157 INFO L226 Difference]: Without dead ends: 14642 [2023-12-02 15:47:37,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:47:37,315 INFO L413 NwaCegarLoop]: 2581 mSDtfsCounter, 16 mSDsluCounter, 2568 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 5149 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-12-02 15:47:37,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 5149 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 789 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2023-12-02 15:47:37,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14642 states. [2023-12-02 15:47:38,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14642 to 14426. [2023-12-02 15:47:38,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14426 states, 8229 states have (on average 1.2491189694981164) internal successors, (10279), 8436 states have internal predecessors, (10279), 5157 states have call successors, (5157), 1049 states have call predecessors, (5157), 1039 states have return successors, (5166), 5081 states have call predecessors, (5166), 5157 states have call successors, (5166) [2023-12-02 15:47:38,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14426 states to 14426 states and 20602 transitions. [2023-12-02 15:47:38,225 INFO L78 Accepts]: Start accepts. Automaton has 14426 states and 20602 transitions. Word has length 429 [2023-12-02 15:47:38,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:47:38,227 INFO L495 AbstractCegarLoop]: Abstraction has 14426 states and 20602 transitions. [2023-12-02 15:47:38,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2023-12-02 15:47:38,228 INFO L276 IsEmpty]: Start isEmpty. Operand 14426 states and 20602 transitions. [2023-12-02 15:47:38,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2023-12-02 15:47:38,242 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:47:38,243 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 7, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:47:38,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 15:47:38,243 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:47:38,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:47:38,244 INFO L85 PathProgramCache]: Analyzing trace with hash -800434456, now seen corresponding path program 1 times [2023-12-02 15:47:38,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:47:38,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862826377] [2023-12-02 15:47:38,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:47:38,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:47:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:47:38,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1305 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1304 trivial. 0 not checked. [2023-12-02 15:47:38,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:47:38,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862826377] [2023-12-02 15:47:38,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862826377] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:47:38,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647311453] [2023-12-02 15:47:38,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:47:38,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:47:38,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:47:38,938 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:47:38,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:47:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:47:40,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 4280 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 15:47:40,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:47:40,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1305 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1289 trivial. 0 not checked. [2023-12-02 15:47:40,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:47:40,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647311453] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:47:40,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 15:47:40,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-12-02 15:47:40,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921903883] [2023-12-02 15:47:40,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:47:40,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:47:40,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:47:40,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:47:40,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:47:40,307 INFO L87 Difference]: Start difference. First operand 14426 states and 20602 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2023-12-02 15:47:45,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:47:47,927 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 [] [2023-12-02 15:47:48,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:47:48,221 INFO L93 Difference]: Finished difference Result 28829 states and 41202 transitions. [2023-12-02 15:47:48,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:47:48,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 467 [2023-12-02 15:47:48,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:47:48,281 INFO L225 Difference]: With dead ends: 28829 [2023-12-02 15:47:48,281 INFO L226 Difference]: Without dead ends: 14434 [2023-12-02 15:47:48,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 467 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:47:48,321 INFO L413 NwaCegarLoop]: 2585 mSDtfsCounter, 0 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5165 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:47:48,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5165 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 763 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2023-12-02 15:47:48,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14434 states. [2023-12-02 15:47:48,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14434 to 14434. [2023-12-02 15:47:48,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14434 states, 8237 states have (on average 1.2488770183319169) internal successors, (10287), 8444 states have internal predecessors, (10287), 5157 states have call successors, (5157), 1049 states have call predecessors, (5157), 1039 states have return successors, (5166), 5081 states have call predecessors, (5166), 5157 states have call successors, (5166) [2023-12-02 15:47:48,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14434 states to 14434 states and 20610 transitions. [2023-12-02 15:47:49,002 INFO L78 Accepts]: Start accepts. Automaton has 14434 states and 20610 transitions. Word has length 467 [2023-12-02 15:47:49,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:47:49,003 INFO L495 AbstractCegarLoop]: Abstraction has 14434 states and 20610 transitions. [2023-12-02 15:47:49,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2023-12-02 15:47:49,004 INFO L276 IsEmpty]: Start isEmpty. Operand 14434 states and 20610 transitions. [2023-12-02 15:47:49,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2023-12-02 15:47:49,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:47:49,012 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 9, 9, 9, 8, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:47:49,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:47:49,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 15:47:49,213 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:47:49,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:47:49,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1177115851, now seen corresponding path program 1 times [2023-12-02 15:47:49,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:47:49,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789635562] [2023-12-02 15:47:49,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:47:49,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:47:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:47:49,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1364 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1363 trivial. 0 not checked. [2023-12-02 15:47:49,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:47:49,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789635562] [2023-12-02 15:47:49,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789635562] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:47:49,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805439669] [2023-12-02 15:47:49,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:47:49,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:47:49,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:47:49,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:47:49,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 15:47:50,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:47:50,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 4266 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 15:47:50,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:47:50,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1364 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1336 trivial. 0 not checked. [2023-12-02 15:47:50,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:47:50,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805439669] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:47:50,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 15:47:50,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-12-02 15:47:50,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274887726] [2023-12-02 15:47:50,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:47:50,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:47:50,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:47:50,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:47:50,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:47:50,834 INFO L87 Difference]: Start difference. First operand 14434 states and 20610 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2023-12-02 15:47:54,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 15:47:55,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:47:55,229 INFO L93 Difference]: Finished difference Result 28907 states and 41355 transitions. [2023-12-02 15:47:55,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:47:55,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 468 [2023-12-02 15:47:55,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:47:55,295 INFO L225 Difference]: With dead ends: 28907 [2023-12-02 15:47:55,295 INFO L226 Difference]: Without dead ends: 14504 [2023-12-02 15:47:55,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:47:55,406 INFO L413 NwaCegarLoop]: 2584 mSDtfsCounter, 5 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5164 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:47:55,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5164 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-02 15:47:55,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14504 states. [2023-12-02 15:47:55,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14504 to 14444. [2023-12-02 15:47:55,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14444 states, 8247 states have (on average 1.2485752394810234) internal successors, (10297), 8454 states have internal predecessors, (10297), 5157 states have call successors, (5157), 1049 states have call predecessors, (5157), 1039 states have return successors, (5166), 5081 states have call predecessors, (5166), 5157 states have call successors, (5166) [2023-12-02 15:47:56,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14444 states to 14444 states and 20620 transitions. [2023-12-02 15:47:56,064 INFO L78 Accepts]: Start accepts. Automaton has 14444 states and 20620 transitions. Word has length 468 [2023-12-02 15:47:56,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:47:56,066 INFO L495 AbstractCegarLoop]: Abstraction has 14444 states and 20620 transitions. [2023-12-02 15:47:56,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 2 states have call successors, (76), 2 states have call predecessors, (76), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2023-12-02 15:47:56,066 INFO L276 IsEmpty]: Start isEmpty. Operand 14444 states and 20620 transitions. [2023-12-02 15:47:56,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2023-12-02 15:47:56,077 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:47:56,077 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 8, 8, 8, 7, 6, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:47:56,092 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 15:47:56,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 15:47:56,278 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:47:56,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:47:56,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1824279049, now seen corresponding path program 1 times [2023-12-02 15:47:56,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:47:56,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596361402] [2023-12-02 15:47:56,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:47:56,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:47:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:47:56,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1307 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1306 trivial. 0 not checked. [2023-12-02 15:47:56,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:47:56,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596361402] [2023-12-02 15:47:56,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596361402] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:47:56,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916376067] [2023-12-02 15:47:56,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:47:56,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:47:56,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:47:56,804 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:47:56,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32997c56-64e6-4b78-9938-44cb776fbd45/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 15:47:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:47:58,155 INFO L262 TraceCheckSpWp]: Trace formula consists of 4353 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:47:58,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:47:58,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1307 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 1248 trivial. 0 not checked. [2023-12-02 15:47:58,223 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:47:58,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1307 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1306 trivial. 0 not checked. [2023-12-02 15:47:58,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916376067] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:47:58,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1632579091] [2023-12-02 15:47:58,574 INFO L159 IcfgInterpreter]: Started Sifa with 249 locations of interest [2023-12-02 15:47:58,574 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:47:58,578 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:47:58,583 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:47:58,584 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:49:24,385 WARN L293 SmtUtils]: Spent 6.79s on a formula simplification. DAG size of input: 3185 DAG size of output: 3185 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 15:49:40,520 WARN L293 SmtUtils]: Spent 6.75s on a formula simplification. DAG size of input: 3185 DAG size of output: 3185 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 15:53:08,518 WARN L293 SmtUtils]: Spent 6.76s on a formula simplification. DAG size of input: 3185 DAG size of output: 3185 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 15:53:24,215 WARN L293 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 3185 DAG size of output: 3185 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 15:56:53,960 WARN L293 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 3185 DAG size of output: 3185 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 15:57:09,598 WARN L293 SmtUtils]: Spent 6.75s on a formula simplification. DAG size of input: 3185 DAG size of output: 3185 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 16:00:39,413 WARN L293 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 3185 DAG size of output: 3185 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 16:00:55,191 WARN L293 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 3185 DAG size of output: 3185 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)