./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/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_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/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_41217a7a-023e-48dd-8c06-db609e49ca50/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 f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:39:08,888 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:39:08,956 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 15:39:08,961 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:39:08,961 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:39:08,993 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:39:08,994 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:39:08,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:39:08,995 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:39:08,995 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:39:08,996 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:39:08,997 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:39:08,997 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:39:08,997 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:39:08,998 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:39:08,998 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:39:08,999 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:39:08,999 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:39:09,000 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:39:09,000 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:39:09,001 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:39:09,001 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:39:09,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:39:09,002 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:39:09,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:39:09,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:39:09,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:39:09,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:39:09,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:39:09,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:39:09,005 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:39:09,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:39:09,005 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 15:39:09,011 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:39:09,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:39:09,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:39:09,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:39:09,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:39:09,012 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:39:09,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:39:09,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:39:09,013 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:39:09,013 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:39:09,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:39:09,014 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_41217a7a-023e-48dd-8c06-db609e49ca50/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81c0ae249d872dcfa63b19fa0949c00123fc4e906e065a111b2d70e300e79eb [2023-12-02 15:39:09,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:39:09,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:39:09,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:39:09,268 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:39:09,269 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:39:09,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2023-12-02 15:39:11,911 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:39:12,372 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:39:12,373 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2023-12-02 15:39:12,410 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/data/5c517357d/6cb566d6dc2644bf9f36c99cb77cf89a/FLAGbafd6ad00 [2023-12-02 15:39:12,423 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/data/5c517357d/6cb566d6dc2644bf9f36c99cb77cf89a [2023-12-02 15:39:12,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:39:12,426 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:39:12,428 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:39:12,428 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:39:12,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:39:12,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:39:12" (1/1) ... [2023-12-02 15:39:12,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f3e6596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:12, skipping insertion in model container [2023-12-02 15:39:12,434 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:39:12" (1/1) ... [2023-12-02 15:39:12,553 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:39:14,442 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_41217a7a-023e-48dd-8c06-db609e49ca50/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2023-12-02 15:39:14,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:39:14,524 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:39:14,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3855] [2023-12-02 15:39:14,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [3862] [2023-12-02 15:39:14,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [3875-3876] [2023-12-02 15:39:14,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [3883] [2023-12-02 15:39:14,638 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3918] [2023-12-02 15:39:14,638 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3920] [2023-12-02 15:39:14,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3922] [2023-12-02 15:39:14,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3925] [2023-12-02 15:39:14,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; incl %0": "+m" (v->counter)); [3968] [2023-12-02 15:39:14,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; decl %0": "+m" (v->counter)); [3975] [2023-12-02 15:39:14,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [3982-3983] [2023-12-02 15:39:14,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [3997] [2023-12-02 15:39:14,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [3999] [2023-12-02 15:39:14,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [4001] [2023-12-02 15:39:14,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [4004] [2023-12-02 15:39:14,655 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4290] [2023-12-02 15:39:14,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4299] [2023-12-02 15:39:14,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4302] [2023-12-02 15:39:14,716 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (525), "i" (12UL)); [5198-5199] [2023-12-02 15:39:14,723 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (640), "i" (12UL)); [5437-5438] [2023-12-02 15:39:14,724 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (652), "i" (12UL)); [5478-5479] [2023-12-02 15:39:14,729 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (681), "i" (12UL)); [5539-5540] [2023-12-02 15:39:14,730 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (694), "i" (12UL)); [5562-5563] [2023-12-02 15:39:14,731 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (714), "i" (12UL)); [5600-5601] [2023-12-02 15:39:14,751 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (1003), "i" (12UL)); [6020-6021] [2023-12-02 15:39:14,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (1037), "i" (12UL)); [6090-6091] [2023-12-02 15:39:14,758 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (1051), "i" (12UL)); [6127-6128] [2023-12-02 15:39:14,762 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (1069), "i" (12UL)); [6167-6168] [2023-12-02 15:39:14,764 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (1091), "i" (12UL)); [6205-6206] [2023-12-02 15:39:14,765 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (1105), "i" (12UL)); [6227-6228] [2023-12-02 15:39:14,765 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (1106), "i" (12UL)); [6237-6238] [2023-12-02 15:39:14,768 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (1143), "i" (12UL)); [6293-6294] [2023-12-02 15:39:14,770 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (1174), "i" (12UL)); [6353-6354] [2023-12-02 15:39:14,774 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (1323), "i" (12UL)); [6498-6499] [2023-12-02 15:39:14,807 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (1391), "i" (12UL)); [6615-6616] [2023-12-02 15:39:14,808 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (1392), "i" (12UL)); [6625-6626] [2023-12-02 15:39:14,809 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (1399), "i" (12UL)); [6643-6644] [2023-12-02 15:39:14,810 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (1419), "i" (12UL)); [6690-6691] [2023-12-02 15:39:14,813 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (1439), "i" (12UL)); [6730-6731] [2023-12-02 15:39:14,816 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (1513), "i" (12UL)); [6886-6887] [2023-12-02 15:39:14,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [7070] [2023-12-02 15:39:14,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [7076] [2023-12-02 15:39:14,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [7082] [2023-12-02 15:39:14,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [7089] [2023-12-02 15:39:14,825 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___0), "+m" (*__ptr___3): "0" (__x___0): "memory"); [7204] [2023-12-02 15:39:14,825 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___0), "+m" (*__ptr___4): "0" (__x___0): "memory"); [7210] [2023-12-02 15:39:14,825 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___0), "+m" (*__ptr___5): "0" (__x___0): "memory"); [7216] [2023-12-02 15:39:14,826 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___0), "+m" (*__ptr___6): "0" (__x___0): "memory"); [7223] [2023-12-02 15:39:14,864 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (2392), "i" (12UL)); [8280-8281] [2023-12-02 15:39:14,866 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (2433), "i" (12UL)); [8344-8345] [2023-12-02 15:39:14,877 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (2513), "i" (12UL)); [8465-8466] [2023-12-02 15:39:14,878 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (2516), "i" (12UL)); [8478-8479] [2023-12-02 15:39:14,881 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (2576), "i" (12UL)); [8579-8580] [2023-12-02 15:39:14,884 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 *)"/anthill/stuff/tacas-comp/work/current--X--drivers/block/pktcdvd.ko--X--unsafelinux-3.0.1--X--08_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/08_1/drivers/block/pktcdvd.c.p"), "i" (2619), "i" (12UL)); [8646-8647] [2023-12-02 15:39:14,937 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_41217a7a-023e-48dd-8c06-db609e49ca50/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-pktcdvd.ko.cil.out.i[265142,265155] [2023-12-02 15:39:14,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:39:15,045 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:39:15,045 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:39:15,045 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:39:15,053 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:39:15,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:15 WrapperNode [2023-12-02 15:39:15,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:39:15,055 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:39:15,055 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:39:15,055 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:39:15,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:15" (1/1) ... [2023-12-02 15:39:15,130 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:15" (1/1) ... [2023-12-02 15:39:15,256 INFO L138 Inliner]: procedures = 309, calls = 2619, calls flagged for inlining = 144, calls inlined = 94, statements flattened = 4431 [2023-12-02 15:39:15,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:39:15,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:39:15,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:39:15,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:39:15,267 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:15" (1/1) ... [2023-12-02 15:39:15,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:15" (1/1) ... [2023-12-02 15:39:15,285 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:15" (1/1) ... [2023-12-02 15:39:15,285 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:15" (1/1) ... [2023-12-02 15:39:15,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:15" (1/1) ... [2023-12-02 15:39:15,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:15" (1/1) ... [2023-12-02 15:39:15,411 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:15" (1/1) ... [2023-12-02 15:39:15,424 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:15" (1/1) ... [2023-12-02 15:39:15,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:39:15,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:39:15,455 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:39:15,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:39:15,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:15" (1/1) ... [2023-12-02 15:39:15,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:39:15,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:39:15,484 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:39:15,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:39:15,568 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-12-02 15:39:15,568 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-12-02 15:39:15,568 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-12-02 15:39:15,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-12-02 15:39:15,568 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_ctl_ioctl [2023-12-02 15:39:15,568 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_ctl_ioctl [2023-12-02 15:39:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_release [2023-12-02 15:39:15,569 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_release [2023-12-02 15:39:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2023-12-02 15:39:15,569 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2023-12-02 15:39:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 15:39:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 15:39:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_get_disc_info [2023-12-02 15:39:15,569 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_get_disc_info [2023-12-02 15:39:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_bio_alloc [2023-12-02 15:39:15,570 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_bio_alloc [2023-12-02 15:39:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 15:39:15,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 15:39:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_setup_dev [2023-12-02 15:39:15,570 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_setup_dev [2023-12-02 15:39:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2023-12-02 15:39:15,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2023-12-02 15:39:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure bdget [2023-12-02 15:39:15,571 INFO L138 BoogieDeclarations]: Found implementation of procedure bdget [2023-12-02 15:39:15,571 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_set_speed [2023-12-02 15:39:15,571 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_set_speed [2023-12-02 15:39:15,571 INFO L130 BoogieDeclarations]: Found specification of procedure bdevname [2023-12-02 15:39:15,571 INFO L138 BoogieDeclarations]: Found implementation of procedure bdevname [2023-12-02 15:39:15,571 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-12-02 15:39:15,571 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-12-02 15:39:15,571 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_shrink_pktlist [2023-12-02 15:39:15,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_shrink_pktlist [2023-12-02 15:39:15,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-12-02 15:39:15,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-12-02 15:39:15,572 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2023-12-02 15:39:15,572 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2023-12-02 15:39:15,572 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-12-02 15:39:15,573 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-12-02 15:39:15,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 15:39:15,573 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 15:39:15,573 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_put [2023-12-02 15:39:15,573 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_put [2023-12-02 15:39:15,573 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2023-12-02 15:39:15,573 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2023-12-02 15:39:15,573 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-12-02 15:39:15,573 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-12-02 15:39:15,574 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_mode_select [2023-12-02 15:39:15,574 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_mode_select [2023-12-02 15:39:15,574 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_remove [2023-12-02 15:39:15,574 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_remove [2023-12-02 15:39:15,574 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-12-02 15:39:15,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-12-02 15:39:15,574 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_debugfs_cleanup [2023-12-02 15:39:15,574 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_debugfs_cleanup [2023-12-02 15:39:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:39:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-12-02 15:39:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-12-02 15:39:15,575 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-12-02 15:39:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure bio_init [2023-12-02 15:39:15,575 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_init [2023-12-02 15:39:15,575 INFO L130 BoogieDeclarations]: Found specification of procedure set_blocksize [2023-12-02 15:39:15,576 INFO L138 BoogieDeclarations]: Found implementation of procedure set_blocksize [2023-12-02 15:39:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_dump_sense [2023-12-02 15:39:15,576 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_dump_sense [2023-12-02 15:39:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_kmalloc_pool [2023-12-02 15:39:15,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_kmalloc_pool [2023-12-02 15:39:15,576 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2023-12-02 15:39:15,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2023-12-02 15:39:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 15:39:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2023-12-02 15:39:15,577 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2023-12-02 15:39:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_lock_door [2023-12-02 15:39:15,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_lock_door [2023-12-02 15:39:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure blkdev_get [2023-12-02 15:39:15,577 INFO L138 BoogieDeclarations]: Found implementation of procedure blkdev_get [2023-12-02 15:39:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_remove_dev [2023-12-02 15:39:15,577 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_remove_dev [2023-12-02 15:39:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2023-12-02 15:39:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2023-12-02 15:39:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-12-02 15:39:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-12-02 15:39:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:39:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure bio_put [2023-12-02 15:39:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_put [2023-12-02 15:39:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 15:39:15,579 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-12-02 15:39:15,579 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-12-02 15:39:15,579 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 15:39:15,579 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 15:39:15,579 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-12-02 15:39:15,579 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-12-02 15:39:15,579 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2023-12-02 15:39:15,580 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2023-12-02 15:39:15,580 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2023-12-02 15:39:15,580 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2023-12-02 15:39:15,580 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-12-02 15:39:15,580 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-12-02 15:39:15,580 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-12-02 15:39:15,580 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-12-02 15:39:15,581 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-12-02 15:39:15,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-12-02 15:39:15,581 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-12-02 15:39:15,581 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-12-02 15:39:15,581 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-12-02 15:39:15,581 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-12-02 15:39:15,581 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_sysfs_cleanup [2023-12-02 15:39:15,582 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_sysfs_cleanup [2023-12-02 15:39:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2023-12-02 15:39:15,582 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2023-12-02 15:39:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_find_dev_from_minor [2023-12-02 15:39:15,582 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_find_dev_from_minor [2023-12-02 15:39:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 15:39:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-12-02 15:39:15,583 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-12-02 15:39:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-12-02 15:39:15,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-12-02 15:39:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-12-02 15:39:15,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-12-02 15:39:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure init_write_congestion_marks [2023-12-02 15:39:15,583 INFO L138 BoogieDeclarations]: Found implementation of procedure init_write_congestion_marks [2023-12-02 15:39:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-12-02 15:39:15,583 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-12-02 15:39:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 15:39:15,584 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_get_track_info [2023-12-02 15:39:15,584 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_get_track_info [2023-12-02 15:39:15,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:39:15,584 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2023-12-02 15:39:15,584 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2023-12-02 15:39:15,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 15:39:15,584 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 15:39:15,584 INFO L130 BoogieDeclarations]: Found specification of procedure new_decode_dev [2023-12-02 15:39:15,584 INFO L138 BoogieDeclarations]: Found implementation of procedure new_decode_dev [2023-12-02 15:39:15,584 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-12-02 15:39:15,584 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-12-02 15:39:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_kobj_create [2023-12-02 15:39:15,585 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_kobj_create [2023-12-02 15:39:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 15:39:15,585 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 15:39:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2023-12-02 15:39:15,585 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2023-12-02 15:39:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:39:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 15:39:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-12-02 15:39:15,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-12-02 15:39:15,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:39:15,586 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_put [2023-12-02 15:39:15,586 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_put [2023-12-02 15:39:15,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 15:39:15,586 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2023-12-02 15:39:15,586 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2023-12-02 15:39:15,586 INFO L130 BoogieDeclarations]: Found specification of procedure queue_max_segments [2023-12-02 15:39:15,586 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_max_segments [2023-12-02 15:39:15,586 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_check_events [2023-12-02 15:39:15,586 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_check_events [2023-12-02 15:39:15,587 INFO L130 BoogieDeclarations]: Found specification of procedure init_cdrom_command [2023-12-02 15:39:15,587 INFO L138 BoogieDeclarations]: Found implementation of procedure init_cdrom_command [2023-12-02 15:39:15,587 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-12-02 15:39:15,587 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-12-02 15:39:15,587 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_mode_sense [2023-12-02 15:39:15,587 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_mode_sense [2023-12-02 15:39:15,587 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-12-02 15:39:15,587 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-12-02 15:39:15,587 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_generic_packet [2023-12-02 15:39:15,588 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_generic_packet [2023-12-02 15:39:15,588 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-12-02 15:39:15,588 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-12-02 15:39:15,588 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-12-02 15:39:15,588 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-12-02 15:39:15,588 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2023-12-02 15:39:15,589 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2023-12-02 15:39:15,589 INFO L130 BoogieDeclarations]: Found specification of procedure pkt_flush_cache [2023-12-02 15:39:15,589 INFO L138 BoogieDeclarations]: Found implementation of procedure pkt_flush_cache [2023-12-02 15:39:15,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:39:15,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:39:15,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:39:15,589 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-12-02 15:39:15,589 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-12-02 15:39:16,129 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:39:16,132 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:39:16,262 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 15:39:16,398 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2023-12-02 15:39:16,398 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2023-12-02 15:39:17,634 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 15:39:17,639 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 15:39:17,640 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 15:39:17,642 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 15:39:17,646 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 15:39:17,647 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 15:39:17,652 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 15:39:19,506 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##201: assume !false; [2023-12-02 15:39:19,506 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##200: assume false; [2023-12-02 15:39:19,506 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##465: assume !false; [2023-12-02 15:39:19,506 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume false; [2023-12-02 15:39:19,506 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##243: assume false; [2023-12-02 15:39:19,507 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##244: assume !false; [2023-12-02 15:39:19,507 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##177: assume !false; [2023-12-02 15:39:19,507 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##176: assume false; [2023-12-02 15:39:19,507 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume !false; [2023-12-02 15:39:19,507 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume false; [2023-12-02 15:39:19,507 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##373: assume !false; [2023-12-02 15:39:19,507 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##372: assume false; [2023-12-02 15:39:19,507 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##342: assume !false; [2023-12-02 15:39:19,507 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##341: assume false; [2023-12-02 15:39:19,599 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:39:20,570 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:39:20,571 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 15:39:20,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:39:20 BoogieIcfgContainer [2023-12-02 15:39:20,573 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:39:20,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:39:20,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:39:20,577 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:39:20,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:39:12" (1/3) ... [2023-12-02 15:39:20,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399058ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:39:20, skipping insertion in model container [2023-12-02 15:39:20,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:39:15" (2/3) ... [2023-12-02 15:39:20,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399058ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:39:20, skipping insertion in model container [2023-12-02 15:39:20,579 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:39:20" (3/3) ... [2023-12-02 15:39:20,580 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-pktcdvd.ko.cil.out.i [2023-12-02 15:39:20,594 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:39:20,595 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 15:39:20,658 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:39:20,664 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;@52c1891d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:39:20,664 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 15:39:20,673 INFO L276 IsEmpty]: Start isEmpty. Operand has 1066 states, 674 states have (on average 1.3367952522255193) internal successors, (901), 694 states have internal predecessors, (901), 310 states have call successors, (310), 80 states have call predecessors, (310), 80 states have return successors, (310), 307 states have call predecessors, (310), 310 states have call successors, (310) [2023-12-02 15:39:20,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 15:39:20,680 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:39:20,680 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:39:20,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:39:20,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:39:20,685 INFO L85 PathProgramCache]: Analyzing trace with hash -969852446, now seen corresponding path program 1 times [2023-12-02 15:39:20,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:39:20,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971557217] [2023-12-02 15:39:20,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:20,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:39:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:21,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:39:21,242 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:39:21,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971557217] [2023-12-02 15:39:21,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971557217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:39:21,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:39:21,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:39:21,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576818584] [2023-12-02 15:39:21,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:39:21,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:39:21,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:39:21,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:39:21,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:39:21,283 INFO L87 Difference]: Start difference. First operand has 1066 states, 674 states have (on average 1.3367952522255193) internal successors, (901), 694 states have internal predecessors, (901), 310 states have call successors, (310), 80 states have call predecessors, (310), 80 states have return successors, (310), 307 states have call predecessors, (310), 310 states have call successors, (310) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 15:39:23,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:39:23,002 INFO L93 Difference]: Finished difference Result 3099 states and 4428 transitions. [2023-12-02 15:39:23,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:39:23,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2023-12-02 15:39:23,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:39:23,036 INFO L225 Difference]: With dead ends: 3099 [2023-12-02 15:39:23,036 INFO L226 Difference]: Without dead ends: 2046 [2023-12-02 15:39:23,045 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 15:39:23,048 INFO L413 NwaCegarLoop]: 1341 mSDtfsCounter, 1466 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 2632 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:39:23,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1466 Valid, 2632 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-02 15:39:23,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2046 states. [2023-12-02 15:39:23,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2046 to 2043. [2023-12-02 15:39:23,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2043 states, 1297 states have (on average 1.3284502698535081) internal successors, (1723), 1330 states have internal predecessors, (1723), 588 states have call successors, (588), 158 states have call predecessors, (588), 157 states have return successors, (589), 580 states have call predecessors, (589), 586 states have call successors, (589) [2023-12-02 15:39:23,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2900 transitions. [2023-12-02 15:39:23,293 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2900 transitions. Word has length 18 [2023-12-02 15:39:23,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:39:23,293 INFO L495 AbstractCegarLoop]: Abstraction has 2043 states and 2900 transitions. [2023-12-02 15:39:23,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 15:39:23,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2900 transitions. [2023-12-02 15:39:23,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 15:39:23,306 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:39:23,306 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 15:39:23,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:39:23,307 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:39:23,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:39:23,308 INFO L85 PathProgramCache]: Analyzing trace with hash -191516685, now seen corresponding path program 1 times [2023-12-02 15:39:23,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:39:23,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203803696] [2023-12-02 15:39:23,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:23,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:39:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:23,721 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 15:39:23,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:39:23,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203803696] [2023-12-02 15:39:23,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203803696] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:39:23,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:39:23,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 15:39:23,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043541057] [2023-12-02 15:39:23,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:39:23,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 15:39:23,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:39:23,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 15:39:23,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:39:23,726 INFO L87 Difference]: Start difference. First operand 2043 states and 2900 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 15:39:25,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:39:25,275 INFO L93 Difference]: Finished difference Result 4046 states and 5742 transitions. [2023-12-02 15:39:25,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:39:25,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 111 [2023-12-02 15:39:25,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:39:25,290 INFO L225 Difference]: With dead ends: 4046 [2023-12-02 15:39:25,290 INFO L226 Difference]: Without dead ends: 2043 [2023-12-02 15:39:25,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:39:25,298 INFO L413 NwaCegarLoop]: 1332 mSDtfsCounter, 1 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3993 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-02 15:39:25,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3993 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-02 15:39:25,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2043 states. [2023-12-02 15:39:25,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2043 to 2043. [2023-12-02 15:39:25,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2043 states, 1297 states have (on average 1.3276792598303777) internal successors, (1722), 1330 states have internal predecessors, (1722), 588 states have call successors, (588), 158 states have call predecessors, (588), 157 states have return successors, (589), 580 states have call predecessors, (589), 586 states have call successors, (589) [2023-12-02 15:39:25,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2899 transitions. [2023-12-02 15:39:25,409 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2899 transitions. Word has length 111 [2023-12-02 15:39:25,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:39:25,409 INFO L495 AbstractCegarLoop]: Abstraction has 2043 states and 2899 transitions. [2023-12-02 15:39:25,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 15:39:25,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2899 transitions. [2023-12-02 15:39:25,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-02 15:39:25,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:39:25,415 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-02 15:39:25,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:39:25,415 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:39:25,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:39:25,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1749032732, now seen corresponding path program 1 times [2023-12-02 15:39:25,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:39:25,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830356435] [2023-12-02 15:39:25,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:25,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:39:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:26,005 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-02 15:39:26,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:39:26,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830356435] [2023-12-02 15:39:26,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830356435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:39:26,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:39:26,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:39:26,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708863363] [2023-12-02 15:39:26,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:39:26,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:39:26,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:39:26,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:39:26,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:39:26,009 INFO L87 Difference]: Start difference. First operand 2043 states and 2899 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-02 15:39:27,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:39:27,629 INFO L93 Difference]: Finished difference Result 4046 states and 5741 transitions. [2023-12-02 15:39:27,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 15:39:27,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 120 [2023-12-02 15:39:27,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:39:27,641 INFO L225 Difference]: With dead ends: 4046 [2023-12-02 15:39:27,642 INFO L226 Difference]: Without dead ends: 2025 [2023-12-02 15:39:27,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-02 15:39:27,648 INFO L413 NwaCegarLoop]: 1330 mSDtfsCounter, 3 mSDsluCounter, 3975 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5305 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:39:27,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5305 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-02 15:39:27,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2023-12-02 15:39:27,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 2025. [2023-12-02 15:39:27,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2025 states, 1289 states have (on average 1.3266097750193948) internal successors, (1710), 1320 states have internal predecessors, (1710), 581 states have call successors, (581), 155 states have call predecessors, (581), 154 states have return successors, (582), 573 states have call predecessors, (582), 579 states have call successors, (582) [2023-12-02 15:39:27,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2025 states to 2025 states and 2873 transitions. [2023-12-02 15:39:27,723 INFO L78 Accepts]: Start accepts. Automaton has 2025 states and 2873 transitions. Word has length 120 [2023-12-02 15:39:27,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:39:27,723 INFO L495 AbstractCegarLoop]: Abstraction has 2025 states and 2873 transitions. [2023-12-02 15:39:27,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-02 15:39:27,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2025 states and 2873 transitions. [2023-12-02 15:39:27,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-02 15:39:27,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:39:27,727 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 15:39:27,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 15:39:27,728 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:39:27,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:39:27,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1406123825, now seen corresponding path program 1 times [2023-12-02 15:39:27,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:39:27,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523752884] [2023-12-02 15:39:27,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:27,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:39:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:28,079 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-02 15:39:28,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:39:28,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523752884] [2023-12-02 15:39:28,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523752884] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:39:28,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:39:28,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 15:39:28,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389307605] [2023-12-02 15:39:28,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:39:28,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 15:39:28,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:39:28,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 15:39:28,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 15:39:28,082 INFO L87 Difference]: Start difference. First operand 2025 states and 2873 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-02 15:39:29,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:39:29,485 INFO L93 Difference]: Finished difference Result 4037 states and 5727 transitions. [2023-12-02 15:39:29,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 15:39:29,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 155 [2023-12-02 15:39:29,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:39:29,498 INFO L225 Difference]: With dead ends: 4037 [2023-12-02 15:39:29,499 INFO L226 Difference]: Without dead ends: 2025 [2023-12-02 15:39:29,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 15:39:29,506 INFO L413 NwaCegarLoop]: 1313 mSDtfsCounter, 1 mSDsluCounter, 2620 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3933 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-02 15:39:29,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3933 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-02 15:39:29,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2025 states. [2023-12-02 15:39:29,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2025 to 2025. [2023-12-02 15:39:29,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2025 states, 1289 states have (on average 1.325833979829325) internal successors, (1709), 1320 states have internal predecessors, (1709), 581 states have call successors, (581), 155 states have call predecessors, (581), 154 states have return successors, (582), 573 states have call predecessors, (582), 579 states have call successors, (582) [2023-12-02 15:39:29,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2025 states to 2025 states and 2872 transitions. [2023-12-02 15:39:29,577 INFO L78 Accepts]: Start accepts. Automaton has 2025 states and 2872 transitions. Word has length 155 [2023-12-02 15:39:29,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:39:29,577 INFO L495 AbstractCegarLoop]: Abstraction has 2025 states and 2872 transitions. [2023-12-02 15:39:29,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-02 15:39:29,577 INFO L276 IsEmpty]: Start isEmpty. Operand 2025 states and 2872 transitions. [2023-12-02 15:39:29,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-12-02 15:39:29,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:39:29,580 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 15:39:29,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 15:39:29,581 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:39:29,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:39:29,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1804919471, now seen corresponding path program 1 times [2023-12-02 15:39:29,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:39:29,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048893388] [2023-12-02 15:39:29,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:29,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:39:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:29,874 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-02 15:39:29,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:39:29,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048893388] [2023-12-02 15:39:29,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048893388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:39:29,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:39:29,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 15:39:29,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584125857] [2023-12-02 15:39:29,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:39:29,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:39:29,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:39:29,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:39:29,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:39:29,877 INFO L87 Difference]: Start difference. First operand 2025 states and 2872 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-02 15:39:30,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:39:30,913 INFO L93 Difference]: Finished difference Result 4108 states and 5844 transitions. [2023-12-02 15:39:30,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:39:30,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 156 [2023-12-02 15:39:30,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:39:30,926 INFO L225 Difference]: With dead ends: 4108 [2023-12-02 15:39:30,927 INFO L226 Difference]: Without dead ends: 2107 [2023-12-02 15:39:30,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 15:39:30,933 INFO L413 NwaCegarLoop]: 1343 mSDtfsCounter, 31 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-02 15:39:30,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2660 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-02 15:39:30,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2107 states. [2023-12-02 15:39:30,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2107 to 2033. [2023-12-02 15:39:30,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 1297 states have (on average 1.3269082498072475) internal successors, (1721), 1328 states have internal predecessors, (1721), 581 states have call successors, (581), 155 states have call predecessors, (581), 154 states have return successors, (582), 573 states have call predecessors, (582), 579 states have call successors, (582) [2023-12-02 15:39:31,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 2884 transitions. [2023-12-02 15:39:31,005 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 2884 transitions. Word has length 156 [2023-12-02 15:39:31,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:39:31,006 INFO L495 AbstractCegarLoop]: Abstraction has 2033 states and 2884 transitions. [2023-12-02 15:39:31,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-12-02 15:39:31,006 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 2884 transitions. [2023-12-02 15:39:31,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-12-02 15:39:31,009 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:39:31,009 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 15:39:31,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 15:39:31,009 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:39:31,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:39:31,010 INFO L85 PathProgramCache]: Analyzing trace with hash 473707109, now seen corresponding path program 1 times [2023-12-02 15:39:31,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:39:31,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978657511] [2023-12-02 15:39:31,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:31,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:39:31,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:32,088 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 15:39:32,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:39:32,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978657511] [2023-12-02 15:39:32,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978657511] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:39:32,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703628496] [2023-12-02 15:39:32,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:32,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:39:32,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:39:32,092 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:39:32,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 15:39:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:33,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 3297 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 15:39:33,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:39:33,164 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 15:39:33,164 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:39:33,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703628496] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:39:33,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 15:39:33,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-12-02 15:39:33,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933162635] [2023-12-02 15:39:33,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:39:33,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 15:39:33,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:39:33,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 15:39:33,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-02 15:39:33,167 INFO L87 Difference]: Start difference. First operand 2033 states and 2884 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-02 15:39:34,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:39:34,803 INFO L93 Difference]: Finished difference Result 4050 states and 5754 transitions. [2023-12-02 15:39:34,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 15:39:34,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 158 [2023-12-02 15:39:34,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:39:34,816 INFO L225 Difference]: With dead ends: 4050 [2023-12-02 15:39:34,817 INFO L226 Difference]: Without dead ends: 2041 [2023-12-02 15:39:34,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-12-02 15:39:34,823 INFO L413 NwaCegarLoop]: 1313 mSDtfsCounter, 5 mSDsluCounter, 3922 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5235 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-02 15:39:34,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5235 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-02 15:39:34,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2041 states. [2023-12-02 15:39:34,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2041 to 2039. [2023-12-02 15:39:34,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2039 states, 1302 states have (on average 1.325652841781874) internal successors, (1726), 1334 states have internal predecessors, (1726), 581 states have call successors, (581), 155 states have call predecessors, (581), 155 states have return successors, (584), 573 states have call predecessors, (584), 579 states have call successors, (584) [2023-12-02 15:39:34,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2039 states to 2039 states and 2891 transitions. [2023-12-02 15:39:34,892 INFO L78 Accepts]: Start accepts. Automaton has 2039 states and 2891 transitions. Word has length 158 [2023-12-02 15:39:34,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:39:34,892 INFO L495 AbstractCegarLoop]: Abstraction has 2039 states and 2891 transitions. [2023-12-02 15:39:34,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-02 15:39:34,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2039 states and 2891 transitions. [2023-12-02 15:39:34,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-02 15:39:34,896 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:39:34,896 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2023-12-02 15:39:34,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 15:39:35,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 15:39:35,097 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:39:35,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:39:35,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1393823256, now seen corresponding path program 1 times [2023-12-02 15:39:35,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:39:35,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239211704] [2023-12-02 15:39:35,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:35,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:39:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:36,246 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 15:39:36,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:39:36,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239211704] [2023-12-02 15:39:36,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239211704] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:39:36,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155293332] [2023-12-02 15:39:36,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:36,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:39:36,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:39:36,249 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:39:36,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 15:39:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:37,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 3313 conjuncts, 49 conjunts are in the unsatisfiable core [2023-12-02 15:39:37,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:39:38,133 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 15:39:38,133 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:39:38,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155293332] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:39:38,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 15:39:38,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 15 [2023-12-02 15:39:38,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282024558] [2023-12-02 15:39:38,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:39:38,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 15:39:38,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:39:38,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 15:39:38,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2023-12-02 15:39:38,136 INFO L87 Difference]: Start difference. First operand 2039 states and 2891 transitions. Second operand has 11 states, 8 states have (on average 12.375) internal successors, (99), 7 states have internal predecessors, (99), 2 states have call successors, (29), 2 states have call predecessors, (29), 6 states have return successors, (25), 6 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-02 15:39:43,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:39:43,774 INFO L93 Difference]: Finished difference Result 6113 states and 8728 transitions. [2023-12-02 15:39:43,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-02 15:39:43,775 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 12.375) internal successors, (99), 7 states have internal predecessors, (99), 2 states have call successors, (29), 2 states have call predecessors, (29), 6 states have return successors, (25), 6 states have call predecessors, (25), 2 states have call successors, (25) Word has length 161 [2023-12-02 15:39:43,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:39:43,805 INFO L225 Difference]: With dead ends: 6113 [2023-12-02 15:39:43,805 INFO L226 Difference]: Without dead ends: 4080 [2023-12-02 15:39:43,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2023-12-02 15:39:43,815 INFO L413 NwaCegarLoop]: 2584 mSDtfsCounter, 1474 mSDsluCounter, 21964 mSDsCounter, 0 mSdLazyCounter, 3171 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 24548 SdHoareTripleChecker+Invalid, 3175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:39:43,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 24548 Invalid, 3175 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 3171 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-12-02 15:39:43,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4080 states. [2023-12-02 15:39:44,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4080 to 4050. [2023-12-02 15:39:44,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4050 states, 2588 states have (on average 1.3265069551777435) internal successors, (3433), 2653 states have internal predecessors, (3433), 1149 states have call successors, (1149), 307 states have call predecessors, (1149), 312 states have return successors, (1175), 1137 states have call predecessors, (1175), 1147 states have call successors, (1175) [2023-12-02 15:39:44,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4050 states to 4050 states and 5757 transitions. [2023-12-02 15:39:44,112 INFO L78 Accepts]: Start accepts. Automaton has 4050 states and 5757 transitions. Word has length 161 [2023-12-02 15:39:44,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:39:44,112 INFO L495 AbstractCegarLoop]: Abstraction has 4050 states and 5757 transitions. [2023-12-02 15:39:44,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 12.375) internal successors, (99), 7 states have internal predecessors, (99), 2 states have call successors, (29), 2 states have call predecessors, (29), 6 states have return successors, (25), 6 states have call predecessors, (25), 2 states have call successors, (25) [2023-12-02 15:39:44,113 INFO L276 IsEmpty]: Start isEmpty. Operand 4050 states and 5757 transitions. [2023-12-02 15:39:44,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-02 15:39:44,120 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:39:44,120 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:39:44,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-02 15:39:44,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 15:39:44,321 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:39:44,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:39:44,321 INFO L85 PathProgramCache]: Analyzing trace with hash 215499476, now seen corresponding path program 1 times [2023-12-02 15:39:44,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:39:44,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642436279] [2023-12-02 15:39:44,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:44,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:39:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:45,374 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 15:39:45,374 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:39:45,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642436279] [2023-12-02 15:39:45,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642436279] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:39:45,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298335250] [2023-12-02 15:39:45,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:45,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:39:45,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:39:45,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:39:45,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 15:39:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:46,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 3320 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 15:39:46,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:39:46,389 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 15:39:46,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 15:39:46,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298335250] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:39:46,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 15:39:46,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2023-12-02 15:39:46,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539486149] [2023-12-02 15:39:46,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:39:46,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 15:39:46,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:39:46,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 15:39:46,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-02 15:39:46,392 INFO L87 Difference]: Start difference. First operand 4050 states and 5757 transitions. Second operand has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-02 15:39:48,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:39:48,489 INFO L93 Difference]: Finished difference Result 8128 states and 11575 transitions. [2023-12-02 15:39:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 15:39:48,490 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 164 [2023-12-02 15:39:48,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:39:48,511 INFO L225 Difference]: With dead ends: 8128 [2023-12-02 15:39:48,511 INFO L226 Difference]: Without dead ends: 4076 [2023-12-02 15:39:48,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-02 15:39:48,520 INFO L413 NwaCegarLoop]: 1312 mSDtfsCounter, 16 mSDsluCounter, 6554 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 7866 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-02 15:39:48,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 7866 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-02 15:39:48,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4076 states. [2023-12-02 15:39:48,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4076 to 4062. [2023-12-02 15:39:48,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4062 states, 2595 states have (on average 1.325626204238921) internal successors, (3440), 2660 states have internal predecessors, (3440), 1151 states have call successors, (1151), 310 states have call predecessors, (1151), 315 states have return successors, (1177), 1139 states have call predecessors, (1177), 1149 states have call successors, (1177) [2023-12-02 15:39:48,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4062 states to 4062 states and 5768 transitions. [2023-12-02 15:39:48,739 INFO L78 Accepts]: Start accepts. Automaton has 4062 states and 5768 transitions. Word has length 164 [2023-12-02 15:39:48,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:39:48,739 INFO L495 AbstractCegarLoop]: Abstraction has 4062 states and 5768 transitions. [2023-12-02 15:39:48,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2023-12-02 15:39:48,740 INFO L276 IsEmpty]: Start isEmpty. Operand 4062 states and 5768 transitions. [2023-12-02 15:39:48,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-12-02 15:39:48,747 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:39:48,747 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-12-02 15:39:48,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 15:39:48,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:39:48,948 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:39:48,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:39:48,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1311520210, now seen corresponding path program 2 times [2023-12-02 15:39:48,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:39:48,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972262431] [2023-12-02 15:39:48,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:39:48,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:39:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:39:57,238 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 15:39:57,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:39:57,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972262431] [2023-12-02 15:39:57,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972262431] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:39:57,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454478303] [2023-12-02 15:39:57,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 15:39:57,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:39:57,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:39:57,240 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:39:57,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41217a7a-023e-48dd-8c06-db609e49ca50/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 15:39:59,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-02 15:39:59,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 15:39:59,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 3352 conjuncts, 494 conjunts are in the unsatisfiable core [2023-12-02 15:39:59,265 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:40:01,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 15:40:01,914 INFO L224 Elim1Store]: Index analysis took 289 ms [2023-12-02 15:40:22,138 WARN L293 SmtUtils]: Spent 20.13s on a formula simplification. DAG size of input: 2040 DAG size of output: 1113 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-02 15:40:22,139 INFO L349 Elim1Store]: treesize reduction 3700, result has 31.0 percent of original size [2023-12-02 15:40:22,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 186 select indices, 186 select index equivalence classes, 17020 disjoint index pairs (out of 17205 index pairs), introduced 186 new quantified variables, introduced 370 case distinctions, treesize of input 939 treesize of output 2224 [2023-12-02 15:40:31,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 15:40:43,380 WARN L293 SmtUtils]: Spent 11.61s on a formula simplification that was a NOOP. DAG size: 946 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:40:45,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2023-12-02 15:40:50,953 INFO L224 Elim1Store]: Index analysis took 186 ms [2023-12-02 15:41:10,032 WARN L293 SmtUtils]: Spent 19.03s on a formula simplification. DAG size of input: 2040 DAG size of output: 1113 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-02 15:41:10,033 INFO L349 Elim1Store]: treesize reduction 3700, result has 31.0 percent of original size [2023-12-02 15:41:10,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 186 select indices, 186 select index equivalence classes, 17020 disjoint index pairs (out of 17205 index pairs), introduced 186 new quantified variables, introduced 370 case distinctions, treesize of input 939 treesize of output 2224 [2023-12-02 15:41:41,386 INFO L224 Elim1Store]: Index analysis took 169 ms [2023-12-02 15:42:01,718 WARN L293 SmtUtils]: Spent 20.29s on a formula simplification. DAG size of input: 2040 DAG size of output: 1113 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-02 15:42:01,719 INFO L349 Elim1Store]: treesize reduction 3700, result has 31.0 percent of original size [2023-12-02 15:42:01,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 186 select indices, 186 select index equivalence classes, 17020 disjoint index pairs (out of 17205 index pairs), introduced 186 new quantified variables, introduced 370 case distinctions, treesize of input 939 treesize of output 2224 [2023-12-02 15:42:45,098 WARN L293 SmtUtils]: Spent 25.23s on a formula simplification that was a NOOP. DAG size: 1318 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:42:47,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 3 [2023-12-02 15:42:59,503 INFO L224 Elim1Store]: Index analysis took 237 ms [2023-12-02 15:43:18,550 WARN L293 SmtUtils]: Spent 19.01s on a formula simplification. DAG size of input: 2040 DAG size of output: 1113 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-02 15:43:18,551 INFO L349 Elim1Store]: treesize reduction 3700, result has 31.0 percent of original size [2023-12-02 15:43:18,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 186 select indices, 186 select index equivalence classes, 17020 disjoint index pairs (out of 17205 index pairs), introduced 186 new quantified variables, introduced 370 case distinctions, treesize of input 939 treesize of output 2224 [2023-12-02 15:44:30,134 WARN L293 SmtUtils]: Spent 48.87s on a formula simplification that was a NOOP. DAG size: 1691 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:45:57,127 WARN L293 SmtUtils]: Spent 46.00s on a formula simplification that was a NOOP. DAG size: 1691 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:46:10,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 185 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 15:46:11,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 185 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 15:46:30,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 185 select indices, 185 select index equivalence classes, 17205 disjoint index pairs (out of 17020 index pairs), introduced 185 new quantified variables, introduced 0 case distinctions, treesize of input 934 treesize of output 1481 [2023-12-02 15:47:28,411 WARN L293 SmtUtils]: Spent 12.01s on a formula simplification that was a NOOP. DAG size: 950 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:47:51,643 WARN L293 SmtUtils]: Spent 11.87s on a formula simplification that was a NOOP. DAG size: 950 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:48:53,841 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 185 select indices, 185 select index equivalence classes, 17205 disjoint index pairs (out of 17020 index pairs), introduced 185 new quantified variables, introduced 0 case distinctions, treesize of input 934 treesize of output 1481 [2023-12-02 15:49:55,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 15:49:55,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 15:49:56,312 INFO L224 Elim1Store]: Index analysis took 269 ms [2023-12-02 15:50:00,491 INFO L349 Elim1Store]: treesize reduction 740, result has 50.0 percent of original size [2023-12-02 15:50:00,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 186 select indices, 186 select index equivalence classes, 17020 disjoint index pairs (out of 17205 index pairs), introduced 186 new quantified variables, introduced 185 case distinctions, treesize of input 935 treesize of output 1303 [2023-12-02 15:50:00,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 185 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-12-02 15:50:02,013 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 15:50:02,013 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:50:03,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454478303] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:50:03,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1703234956] [2023-12-02 15:50:03,635 INFO L159 IcfgInterpreter]: Started Sifa with 145 locations of interest [2023-12-02 15:50:03,635 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:50:03,639 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:50:03,645 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:50:03,646 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs