./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--gpu--drm--qxl--qxl.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/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_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--gpu--drm--qxl--qxl.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/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_864a2ee5-501f-4338-901a-f09ab83b2dbc/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 9c916f7cd46f1890dabf82933f4e66c296f8249a4c1906e098bf8506df0bb4e4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:32:38,964 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:32:39,029 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 14:32:39,034 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:32:39,034 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:32:39,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:32:39,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:32:39,070 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:32:39,071 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:32:39,071 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:32:39,072 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:32:39,072 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:32:39,073 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:32:39,073 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:32:39,074 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:32:39,075 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:32:39,075 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:32:39,076 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:32:39,076 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:32:39,077 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:32:39,077 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:32:39,078 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:32:39,079 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:32:39,079 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:32:39,080 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:32:39,080 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:32:39,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:32:39,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:32:39,081 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:32:39,082 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:32:39,082 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:32:39,083 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:32:39,083 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:32:39,083 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:32:39,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:32:39,098 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:32:39,098 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:32:39,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:32:39,099 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:32:39,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:32:39,099 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:32:39,099 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:32:39,100 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:32:39,100 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:32:39,100 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_864a2ee5-501f-4338-901a-f09ab83b2dbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c916f7cd46f1890dabf82933f4e66c296f8249a4c1906e098bf8506df0bb4e4 [2023-12-02 14:32:39,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:32:39,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:32:39,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:32:39,329 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:32:39,330 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:32:39,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--gpu--drm--qxl--qxl.ko-entry_point.cil.out.i [2023-12-02 14:32:42,099 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:32:42,640 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:32:42,640 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--gpu--drm--qxl--qxl.ko-entry_point.cil.out.i [2023-12-02 14:32:42,694 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/data/488e85411/1fdc3345504143a9badf292046ed865b/FLAG9bdee92b9 [2023-12-02 14:32:42,706 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/data/488e85411/1fdc3345504143a9badf292046ed865b [2023-12-02 14:32:42,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:32:42,710 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:32:42,711 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:32:42,711 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:32:42,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:32:42,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:32:42" (1/1) ... [2023-12-02 14:32:42,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255163d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:32:42, skipping insertion in model container [2023-12-02 14:32:42,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:32:42" (1/1) ... [2023-12-02 14:32:42,872 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:32:48,180 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_864a2ee5-501f-4338-901a-f09ab83b2dbc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--gpu--drm--qxl--qxl.ko-entry_point.cil.out.i[546625,546638] [2023-12-02 14:32:48,272 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:32:48,362 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:32:48,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [8025-8026] [2023-12-02 14:32:48,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; cmpxchgb %2,%1": "=a" (__ret), "+m" (*__ptr): "q" (__new), "0" (__old): "memory"); [8045-8046] [2023-12-02 14:32:48,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; cmpxchgw %2,%1": "=a" (__ret), "+m" (*__ptr___0): "r" (__new), "0" (__old): "memory"); [8050-8051] [2023-12-02 14:32:48,523 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; cmpxchgl %2,%1": "=a" (__ret), "+m" (*__ptr___1): "r" (__new), "0" (__old): "memory"); [8055-8056] [2023-12-02 14:32:48,523 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; cmpxchgq %2,%1": "=a" (__ret), "+m" (*__ptr___2): "r" (__new), "0" (__old): "memory"); [8060-8061] [2023-12-02 14:32:48,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/4394/dscv_tempdir/dscv/ri/43_2a/drivers/gpu/drm/qxl/qxl_display.c"), "i" (552), "i" (12UL)); [9080-9081] [2023-12-02 14:32:48,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/4394/dscv_tempdir/dscv/ri/43_2a/drivers/gpu/drm/qxl/qxl_display.c"), "i" (747), "i" (12UL)); [9369-9370] [2023-12-02 14:32:48,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/4394/dscv_tempdir/dscv/ri/43_2a/drivers/gpu/drm/qxl/qxl_ttm.c"), "i" (342), "i" (12UL)); [10953-10954] [2023-12-02 14:32:48,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [11366-11367] [2023-12-02 14:32:48,732 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/4394/dscv_tempdir/dscv/ri/43_2a/drivers/gpu/drm/qxl/qxl_fb.c"), "i" (274), "i" (12UL)); [11790-11791] [2023-12-02 14:32:48,736 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/4394/dscv_tempdir/dscv/ri/43_2a/drivers/gpu/drm/qxl/qxl_fb.c"), "i" (368), "i" (12UL)); [11907-11908] [2023-12-02 14:32:48,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [12537] [2023-12-02 14:32:48,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [12540] [2023-12-02 14:32:48,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [12543] [2023-12-02 14:32:48,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [12546] [2023-12-02 14:32:48,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [12563-12564] [2023-12-02 14:32:48,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [12567-12568] [2023-12-02 14:32:48,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [12571-12572] [2023-12-02 14:32:48,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [12575-12576] [2023-12-02 14:32:48,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [12594] [2023-12-02 14:32:48,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [12597] [2023-12-02 14:32:48,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (val)); [12599] [2023-12-02 14:32:48,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [12604] [2023-12-02 14:32:48,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [12607] [2023-12-02 14:32:48,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [12609] [2023-12-02 14:32:48,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [12614] [2023-12-02 14:32:48,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [12617] [2023-12-02 14:32:48,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [12619] [2023-12-02 14:32:48,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [12624] [2023-12-02 14:32:48,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [12627] [2023-12-02 14:32:48,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (val)); [12629] [2023-12-02 14:32:48,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [12647] [2023-12-02 14:32:48,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [12650] [2023-12-02 14:32:48,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (- val)); [12652] [2023-12-02 14:32:48,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [12657] [2023-12-02 14:32:48,782 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [12660] [2023-12-02 14:32:48,782 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [12662] [2023-12-02 14:32:48,782 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [12667] [2023-12-02 14:32:48,782 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [12670] [2023-12-02 14:32:48,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [12672] [2023-12-02 14:32:48,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [12677] [2023-12-02 14:32:48,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [12680] [2023-12-02 14:32:48,784 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (- val)); [12682] [2023-12-02 14:32:48,786 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [12767] [2023-12-02 14:32:48,786 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [12774] [2023-12-02 14:32:48,787 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [12822] [2023-12-02 14:32:48,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [12831] [2023-12-02 14:32:48,808 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/4394/dscv_tempdir/dscv/ri/43_2a/drivers/gpu/drm/qxl/qxl_gem.c"), "i" (86), "i" (12UL)); [13398-13399] [2023-12-02 14:32:48,809 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/4394/dscv_tempdir/dscv/ri/43_2a/drivers/gpu/drm/qxl/qxl_gem.c"), "i" (87), "i" (12UL)); [13407-13408] [2023-12-02 14:32:48,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [13531] [2023-12-02 14:32:48,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [13533] [2023-12-02 14:32:48,812 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 *)"./arch/x86/include/asm/paravirt.h"), "i" (831), "i" (12UL)); [13561-13562] [2023-12-02 14:32:48,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (43UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [13567-13569] [2023-12-02 14:32:48,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [13586] [2023-12-02 14:32:48,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [13589] [2023-12-02 14:32:48,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [13592] [2023-12-02 14:32:48,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [13595] [2023-12-02 14:32:48,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [13632] [2023-12-02 14:32:48,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [13645] [2023-12-02 14:32:48,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret__): "m" (cpu_number)); [13709] [2023-12-02 14:32:48,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [13712] [2023-12-02 14:32:48,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [13715] [2023-12-02 14:32:48,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret__): "m" (cpu_number)); [13718] [2023-12-02 14:32:48,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret_____0): "m" (cpu_number)); [13729] [2023-12-02 14:32:48,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [13732] [2023-12-02 14:32:48,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [13735] [2023-12-02 14:32:48,819 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret_____0): "m" (cpu_number)); [13738] [2023-12-02 14:32:48,819 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret_____1): "m" (cpu_number)); [13749] [2023-12-02 14:32:48,819 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [13752] [2023-12-02 14:32:48,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [13755] [2023-12-02 14:32:48,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret_____1): "m" (cpu_number)); [13758] [2023-12-02 14:32:48,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%1,%0": "=q" (pfo_ret_____2): "m" (cpu_number)); [13769] [2023-12-02 14:32:48,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [13772] [2023-12-02 14:32:48,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [13775] [2023-12-02 14:32:48,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%1,%0": "=r" (pfo_ret_____2): "m" (cpu_number)); [13778] [2023-12-02 14:32:48,825 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [13943] [2023-12-02 14:32:48,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [14028] [2023-12-02 14:32:48,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [15752] [2023-12-02 14:32:48,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [16057] [2023-12-02 14:32:48,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" ((qdev->ram_header)->int_pending): : "memory", "cc"); [16106-16107] [2023-12-02 14:32:48,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" ((qdev->ram_header)->int_pending): : "memory", "cc"); [16110-16111] [2023-12-02 14:32:48,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" ((qdev->ram_header)->int_pending): : "memory", "cc"); [16114-16115] [2023-12-02 14:32:48,922 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" ((qdev->ram_header)->int_pending): : "memory", "cc"); [16118-16119] [2023-12-02 14:32:48,931 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/4394/dscv_tempdir/dscv/ri/43_2a/drivers/gpu/drm/qxl/qxl_dumb.c"), "i" (78), "i" (12UL)); [16485-16486] [2023-12-02 14:32:48,933 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [16568] [2023-12-02 14:32:48,934 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [16571] [2023-12-02 14:32:48,934 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [16574] [2023-12-02 14:32:48,934 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [16577] [2023-12-02 14:32:48,992 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_864a2ee5-501f-4338-901a-f09ab83b2dbc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--gpu--drm--qxl--qxl.ko-entry_point.cil.out.i[546625,546638] [2023-12-02 14:32:49,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:32:49,450 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:32:49,450 WARN L675 CHandler]: The function __bad_size_call_parameter is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:32:49,450 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:32:49,450 WARN L675 CHandler]: The function __cmpxchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:32:49,450 WARN L675 CHandler]: The function vsnprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:32:49,450 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:32:49,451 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:32:49,458 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:32:49,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:32:49 WrapperNode [2023-12-02 14:32:49,459 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:32:49,460 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:32:49,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:32:49,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:32:49,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:32:49" (1/1) ... [2023-12-02 14:32:49,576 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:32:49" (1/1) ... [2023-12-02 14:32:49,891 INFO L138 Inliner]: procedures = 759, calls = 5139, calls flagged for inlining = 341, calls inlined = 314, statements flattened = 12135 [2023-12-02 14:32:49,892 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:32:49,893 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:32:49,893 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:32:49,893 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:32:49,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:32:49" (1/1) ... [2023-12-02 14:32:49,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:32:49" (1/1) ... [2023-12-02 14:32:49,946 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:32:49" (1/1) ... [2023-12-02 14:32:49,947 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:32:49" (1/1) ... [2023-12-02 14:32:50,194 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:32:49" (1/1) ... [2023-12-02 14:32:50,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:32:49" (1/1) ... [2023-12-02 14:32:50,322 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:32:49" (1/1) ... [2023-12-02 14:32:50,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:32:49" (1/1) ... [2023-12-02 14:32:50,423 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:32:50,423 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:32:50,424 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:32:50,424 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:32:50,424 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:32:49" (1/1) ... [2023-12-02 14:32:50,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:32:50,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:32:50,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:32:50,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:32:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-12-02 14:32:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-12-02 14:32:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_unpin [2023-12-02 14:32:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_unpin [2023-12-02 14:32:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_ref [2023-12-02 14:32:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_ref [2023-12-02 14:32:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_fbdev_set_suspend [2023-12-02 14:32:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_fbdev_set_suspend [2023-12-02 14:32:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_work_265 [2023-12-02 14:32:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_work_265 [2023-12-02 14:32:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_io_reset [2023-12-02 14:32:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_io_reset [2023-12-02 14:32:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-12-02 14:32:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_create [2023-12-02 14:32:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_create [2023-12-02 14:32:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_unreserve___1 [2023-12-02 14:32:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_unreserve___1 [2023-12-02 14:32:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_unreserve___0 [2023-12-02 14:32:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_unreserve___0 [2023-12-02 14:32:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 14:32:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 14:32:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_allocate_chunk [2023-12-02 14:32:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_allocate_chunk [2023-12-02 14:32:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-12-02 14:32:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-12-02 14:32:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-12-02 14:32:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-12-02 14:32:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 14:32:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 14:32:50,495 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_mmap_offset [2023-12-02 14:32:50,495 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_mmap_offset [2023-12-02 14:32:50,495 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_alloc_release_reserved [2023-12-02 14:32:50,495 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_alloc_release_reserved [2023-12-02 14:32:50,495 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2023-12-02 14:32:50,495 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2023-12-02 14:32:50,495 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-12-02 14:32:50,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-12-02 14:32:50,496 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_probe_single_connector_modes_nomerge [2023-12-02 14:32:50,496 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_probe_single_connector_modes_nomerge [2023-12-02 14:32:50,496 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_conn_mode_valid [2023-12-02 14:32:50,496 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_conn_mode_valid [2023-12-02 14:32:50,496 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_surface_evict_locked [2023-12-02 14:32:50,496 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_surface_evict_locked [2023-12-02 14:32:50,497 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2023-12-02 14:32:50,497 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2023-12-02 14:32:50,497 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_physical_address [2023-12-02 14:32:50,497 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_physical_address [2023-12-02 14:32:50,497 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2023-12-02 14:32:50,497 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2023-12-02 14:32:50,498 INFO L130 BoogieDeclarations]: Found specification of procedure drm_err [2023-12-02 14:32:50,498 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_err [2023-12-02 14:32:50,498 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_kunmap [2023-12-02 14:32:50,498 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_kunmap [2023-12-02 14:32:50,498 INFO L130 BoogieDeclarations]: Found specification of procedure drm_modeset_unlock_all [2023-12-02 14:32:50,498 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_modeset_unlock_all [2023-12-02 14:32:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_garbage_collect [2023-12-02 14:32:50,499 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_garbage_collect [2023-12-02 14:32:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_sub [2023-12-02 14:32:50,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_sub [2023-12-02 14:32:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_move_notify [2023-12-02 14:32:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_move_notify [2023-12-02 14:32:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_ring_init_hdr [2023-12-02 14:32:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_ring_init_hdr [2023-12-02 14:32:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-12-02 14:32:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-12-02 14:32:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_io_update_area [2023-12-02 14:32:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_io_update_area [2023-12-02 14:32:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_eu_backoff_reservation [2023-12-02 14:32:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_eu_backoff_reservation [2023-12-02 14:32:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_dirty_update [2023-12-02 14:32:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_dirty_update [2023-12-02 14:32:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_surface_evict [2023-12-02 14:32:50,502 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_surface_evict [2023-12-02 14:32:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_evict_flags [2023-12-02 14:32:50,502 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_evict_flags [2023-12-02 14:32:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-12-02 14:32:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_gem_object_close [2023-12-02 14:32:50,502 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_gem_object_close [2023-12-02 14:32:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_drawable [2023-12-02 14:32:50,502 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_drawable [2023-12-02 14:32:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_conn_set_property [2023-12-02 14:32:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_conn_set_property [2023-12-02 14:32:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure drm_object_attach_property [2023-12-02 14:32:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_object_attach_property [2023-12-02 14:32:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-12-02 14:32:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-12-02 14:32:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure idr_init [2023-12-02 14:32:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_init [2023-12-02 14:32:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-12-02 14:32:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_fb_work [2023-12-02 14:32:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_fb_work [2023-12-02 14:32:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-12-02 14:32:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-12-02 14:32:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_alloc_bo_reserved [2023-12-02 14:32:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_alloc_bo_reserved [2023-12-02 14:32:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-12-02 14:32:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-12-02 14:32:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure idr_preload_end [2023-12-02 14:32:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_preload_end [2023-12-02 14:32:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 14:32:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure setup_hw_slot [2023-12-02 14:32:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_hw_slot [2023-12-02 14:32:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-12-02 14:32:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-12-02 14:32:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure drm_object_property_set_value [2023-12-02 14:32:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_object_property_set_value [2023-12-02 14:32:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_image_init [2023-12-02 14:32:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_image_init [2023-12-02 14:32:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-12-02 14:32:50,506 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-12-02 14:32:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure drm_modeset_lock_all [2023-12-02 14:32:50,506 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_modeset_lock_all [2023-12-02 14:32:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_gem_object_free [2023-12-02 14:32:50,506 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_gem_object_free [2023-12-02 14:32:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_io_cmd [2023-12-02 14:32:50,506 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_io_cmd [2023-12-02 14:32:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_release_list_add [2023-12-02 14:32:50,506 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_release_list_add [2023-12-02 14:32:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure io_mapping_create_wc [2023-12-02 14:32:50,507 INFO L138 BoogieDeclarations]: Found implementation of procedure io_mapping_create_wc [2023-12-02 14:32:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fb_helper_fini [2023-12-02 14:32:50,507 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fb_helper_fini [2023-12-02 14:32:50,507 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-12-02 14:32:50,507 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-12-02 14:32:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-12-02 14:32:50,508 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-12-02 14:32:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 14:32:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_gem_object_open [2023-12-02 14:32:50,508 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_gem_object_open [2023-12-02 14:32:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure drm_open [2023-12-02 14:32:50,508 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_open [2023-12-02 14:32:50,508 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_release_free_list [2023-12-02 14:32:50,508 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_release_free_list [2023-12-02 14:32:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_unref [2023-12-02 14:32:50,509 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_unref [2023-12-02 14:32:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-12-02 14:32:50,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-12-02 14:32:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure drm_global_item_unref [2023-12-02 14:32:50,509 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_global_item_unref [2023-12-02 14:32:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure drm_mode_probed_add [2023-12-02 14:32:50,509 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_mode_probed_add [2023-12-02 14:32:50,509 INFO L130 BoogieDeclarations]: Found specification of procedure drm_pci_set_busid [2023-12-02 14:32:50,509 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_pci_set_busid [2023-12-02 14:32:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_fb_copyarea [2023-12-02 14:32:50,510 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_fb_copyarea [2023-12-02 14:32:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 14:32:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_draw_opaque_fb [2023-12-02 14:32:50,510 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_draw_opaque_fb [2023-12-02 14:32:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure trace_fence_emit [2023-12-02 14:32:50,510 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_fence_emit [2023-12-02 14:32:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_crtc_cursor_set2 [2023-12-02 14:32:50,511 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_crtc_cursor_set2 [2023-12-02 14:32:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_image_alloc_objects [2023-12-02 14:32:50,511 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_image_alloc_objects [2023-12-02 14:32:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_release_fence_buffer_objects [2023-12-02 14:32:50,511 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_release_fence_buffer_objects [2023-12-02 14:32:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 14:32:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_mem_io_lock [2023-12-02 14:32:50,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_mem_io_lock [2023-12-02 14:32:50,512 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_check_id [2023-12-02 14:32:50,512 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_check_id [2023-12-02 14:32:50,512 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_push_cursor_ring_release [2023-12-02 14:32:50,512 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_push_cursor_ring_release [2023-12-02 14:32:50,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 14:32:50,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 14:32:50,512 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_kmap_atomic_page [2023-12-02 14:32:50,512 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_kmap_atomic_page [2023-12-02 14:32:50,512 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_unreserve [2023-12-02 14:32:50,513 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_unreserve [2023-12-02 14:32:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2023-12-02 14:32:50,513 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2023-12-02 14:32:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_release_free [2023-12-02 14:32:50,513 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_release_free [2023-12-02 14:32:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_push_command_ring_release [2023-12-02 14:32:50,513 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_push_command_ring_release [2023-12-02 14:32:50,513 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-12-02 14:32:50,513 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-12-02 14:32:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-12-02 14:32:50,514 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-12-02 14:32:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure setup_slot [2023-12-02 14:32:50,514 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_slot [2023-12-02 14:32:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_debugfs_takedown [2023-12-02 14:32:50,514 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_debugfs_takedown [2023-12-02 14:32:50,514 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_framebuffer_surface_dirty [2023-12-02 14:32:50,515 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_framebuffer_surface_dirty [2023-12-02 14:32:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fb_helper_pan_display [2023-12-02 14:32:50,515 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fb_helper_pan_display [2023-12-02 14:32:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_enc_prepare [2023-12-02 14:32:50,515 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_enc_prepare [2023-12-02 14:32:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_crtc_dpms [2023-12-02 14:32:50,516 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_crtc_dpms [2023-12-02 14:32:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-12-02 14:32:50,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-12-02 14:32:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-12-02 14:32:50,516 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-12-02 14:32:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_kmap [2023-12-02 14:32:50,517 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_kmap [2023-12-02 14:32:50,517 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference [2023-12-02 14:32:50,517 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference [2023-12-02 14:32:50,517 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_crtc_page_flip [2023-12-02 14:32:50,517 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_crtc_page_flip [2023-12-02 14:32:50,517 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_io_log [2023-12-02 14:32:50,518 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_io_log [2023-12-02 14:32:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-12-02 14:32:50,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-12-02 14:32:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 14:32:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure drm_debugfs_create_files [2023-12-02 14:32:50,518 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_debugfs_create_files [2023-12-02 14:32:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_queue_garbage_collect [2023-12-02 14:32:50,519 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_queue_garbage_collect [2023-12-02 14:32:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure fence_release [2023-12-02 14:32:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_evict_mm [2023-12-02 14:32:50,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_evict_mm [2023-12-02 14:32:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:32:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_monitors_config_set [2023-12-02 14:32:50,519 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_monitors_config_set [2023-12-02 14:32:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_ref [2023-12-02 14:32:50,519 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_ref [2023-12-02 14:32:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 14:32:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-12-02 14:32:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_ttm_placement_from_domain [2023-12-02 14:32:50,520 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_ttm_placement_from_domain [2023-12-02 14:32:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 14:32:50,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 14:32:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure drm_debugfs_remove_files [2023-12-02 14:32:50,520 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_debugfs_remove_files [2023-12-02 14:32:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2023-12-02 14:32:50,521 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2023-12-02 14:32:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_add_to_lru [2023-12-02 14:32:50,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_add_to_lru [2023-12-02 14:32:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_pci_probe [2023-12-02 14:32:50,521 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_pci_probe [2023-12-02 14:32:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_send_monitors_config [2023-12-02 14:32:50,521 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_send_monitors_config [2023-12-02 14:32:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure free_drawable [2023-12-02 14:32:50,521 INFO L138 BoogieDeclarations]: Found implementation of procedure free_drawable [2023-12-02 14:32:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_gem_prime_unpin [2023-12-02 14:32:50,522 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_gem_prime_unpin [2023-12-02 14:32:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fb_helper_setcmap [2023-12-02 14:32:50,522 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fb_helper_setcmap [2023-12-02 14:32:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_gem_prime_vunmap [2023-12-02 14:32:50,522 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_gem_prime_vunmap [2023-12-02 14:32:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_validate [2023-12-02 14:32:50,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_validate [2023-12-02 14:32:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-12-02 14:32:50,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-12-02 14:32:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-12-02 14:32:50,523 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-12-02 14:32:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_release_alloc [2023-12-02 14:32:50,523 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_release_alloc [2023-12-02 14:32:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_crtc_cursor_move [2023-12-02 14:32:50,523 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_crtc_cursor_move [2023-12-02 14:32:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_gem_object_create_with_handle [2023-12-02 14:32:50,523 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_gem_object_create_with_handle [2023-12-02 14:32:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure drm_release [2023-12-02 14:32:50,524 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_release [2023-12-02 14:32:50,524 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf [2023-12-02 14:32:50,524 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-12-02 14:32:50,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-12-02 14:32:50,524 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_nop_signaling [2023-12-02 14:32:50,524 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_nop_signaling [2023-12-02 14:32:50,524 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-12-02 14:32:50,524 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-12-02 14:32:50,525 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_crtc_mode_fixup [2023-12-02 14:32:50,525 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_crtc_mode_fixup [2023-12-02 14:32:50,525 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-12-02 14:32:50,525 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-12-02 14:32:50,525 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_hw_surface_dealloc [2023-12-02 14:32:50,525 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_hw_surface_dealloc [2023-12-02 14:32:50,525 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-12-02 14:32:50,525 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-12-02 14:32:50,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:32:50,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:32:50,526 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_ring_create [2023-12-02 14:32:50,526 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_ring_create [2023-12-02 14:32:50,526 INFO L130 BoogieDeclarations]: Found specification of procedure idr_preload [2023-12-02 14:32:50,526 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_preload [2023-12-02 14:32:50,526 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2023-12-02 14:32:50,526 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-12-02 14:32:50,526 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-12-02 14:32:50,527 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_conn_save [2023-12-02 14:32:50,527 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_conn_save [2023-12-02 14:32:50,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 14:32:50,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 14:32:50,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 14:32:50,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 14:32:50,527 INFO L130 BoogieDeclarations]: Found specification of procedure drm_cvt_mode [2023-12-02 14:32:50,527 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_cvt_mode [2023-12-02 14:32:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_destroy_monitors_object [2023-12-02 14:32:50,528 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_destroy_monitors_object [2023-12-02 14:32:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure io_mapping_free [2023-12-02 14:32:50,528 INFO L138 BoogieDeclarations]: Found implementation of procedure io_mapping_free [2023-12-02 14:32:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-12-02 14:32:50,528 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-12-02 14:32:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure qxlfb_destroy_pinned_object [2023-12-02 14:32:50,528 INFO L138 BoogieDeclarations]: Found implementation of procedure qxlfb_destroy_pinned_object [2023-12-02 14:32:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2023-12-02 14:32:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_release_backoff_reserve_list [2023-12-02 14:32:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_release_backoff_reserve_list [2023-12-02 14:32:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_release_reserve_list [2023-12-02 14:32:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_release_reserve_list [2023-12-02 14:32:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_kunmap_atomic_page [2023-12-02 14:32:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_kunmap_atomic_page [2023-12-02 14:32:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_crtc_disable [2023-12-02 14:32:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_crtc_disable [2023-12-02 14:32:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_check_header [2023-12-02 14:32:50,530 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_check_header [2023-12-02 14:32:50,530 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_ring_free [2023-12-02 14:32:50,530 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_ring_free [2023-12-02 14:32:50,530 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-12-02 14:32:50,530 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-12-02 14:32:50,530 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-12-02 14:32:50,530 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-12-02 14:32:50,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-12-02 14:32:50,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-12-02 14:32:50,531 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_fb_imageblit [2023-12-02 14:32:50,531 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_fb_imageblit [2023-12-02 14:32:50,531 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_ttm_io_mem_reserve [2023-12-02 14:32:50,532 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_ttm_io_mem_reserve [2023-12-02 14:32:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-12-02 14:32:50,532 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-12-02 14:32:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 14:32:50,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 14:32:50,532 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 14:32:50,533 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 14:32:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_palette_object [2023-12-02 14:32:50,533 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_palette_object [2023-12-02 14:32:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find_slowpath [2023-12-02 14:32:50,533 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find_slowpath [2023-12-02 14:32:50,533 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_unreference_unlocked [2023-12-02 14:32:50,534 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_unreference_unlocked [2023-12-02 14:32:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_draw_dirty_fb [2023-12-02 14:32:50,534 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_draw_dirty_fb [2023-12-02 14:32:50,534 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_framebuffer_init [2023-12-02 14:32:50,534 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_framebuffer_init [2023-12-02 14:32:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-12-02 14:32:50,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-12-02 14:32:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2023-12-02 14:32:50,535 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2023-12-02 14:32:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_crtc_prepare [2023-12-02 14:32:50,535 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_crtc_prepare [2023-12-02 14:32:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_pin [2023-12-02 14:32:50,536 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_pin [2023-12-02 14:32:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 14:32:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_free [2023-12-02 14:32:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_drm_freeze [2023-12-02 14:32:50,536 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_drm_freeze [2023-12-02 14:32:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-12-02 14:32:50,537 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-12-02 14:32:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_driver_unload [2023-12-02 14:32:50,537 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_driver_unload [2023-12-02 14:32:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_global_release [2023-12-02 14:32:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_alloc_surface_release_reserved [2023-12-02 14:32:50,537 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_alloc_surface_release_reserved [2023-12-02 14:32:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 14:32:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_mmap [2023-12-02 14:32:50,538 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_mmap [2023-12-02 14:32:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_pci_remove [2023-12-02 14:32:50,538 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_pci_remove [2023-12-02 14:32:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_gc_work [2023-12-02 14:32:50,538 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_gc_work [2023-12-02 14:32:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_2 [2023-12-02 14:32:50,538 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_2 [2023-12-02 14:32:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-12-02 14:32:50,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-12-02 14:32:50,539 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2023-12-02 14:32:50,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2023-12-02 14:32:50,539 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_conn_detect [2023-12-02 14:32:50,539 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_conn_detect [2023-12-02 14:32:50,539 INFO L130 BoogieDeclarations]: Found specification of procedure fence_put [2023-12-02 14:32:50,539 INFO L138 BoogieDeclarations]: Found implementation of procedure fence_put [2023-12-02 14:32:50,539 INFO L130 BoogieDeclarations]: Found specification of procedure list_is_singular [2023-12-02 14:32:50,539 INFO L138 BoogieDeclarations]: Found implementation of procedure list_is_singular [2023-12-02 14:32:50,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 14:32:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 14:32:50,540 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 14:32:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure drm_ut_debug_printk [2023-12-02 14:32:50,540 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_ut_debug_printk [2023-12-02 14:32:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_fb_fillrect [2023-12-02 14:32:50,540 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_fb_fillrect [2023-12-02 14:32:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-12-02 14:32:50,540 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-12-02 14:32:50,540 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_reap_surface_id [2023-12-02 14:32:50,540 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_reap_surface_id [2023-12-02 14:32:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_enc_commit [2023-12-02 14:32:50,541 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_enc_commit [2023-12-02 14:32:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-12-02 14:32:50,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-12-02 14:32:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-12-02 14:32:50,541 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-12-02 14:32:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_hw_surface_alloc [2023-12-02 14:32:50,541 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_hw_surface_alloc [2023-12-02 14:32:50,541 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_enc_destroy [2023-12-02 14:32:50,542 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_enc_destroy [2023-12-02 14:32:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-12-02 14:32:50,542 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-12-02 14:32:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-12-02 14:32:50,542 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-12-02 14:32:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2023-12-02 14:32:50,542 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2023-12-02 14:32:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-12-02 14:32:50,542 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-12-02 14:32:50,542 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2023-12-02 14:32:50,543 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2023-12-02 14:32:50,543 INFO L130 BoogieDeclarations]: Found specification of procedure fence_signal [2023-12-02 14:32:50,543 INFO L138 BoogieDeclarations]: Found implementation of procedure fence_signal [2023-12-02 14:32:50,543 INFO L130 BoogieDeclarations]: Found specification of procedure fence_is_signaled [2023-12-02 14:32:50,543 INFO L138 BoogieDeclarations]: Found implementation of procedure fence_is_signaled [2023-12-02 14:32:50,543 INFO L130 BoogieDeclarations]: Found specification of procedure make_drawable [2023-12-02 14:32:50,543 INFO L138 BoogieDeclarations]: Found implementation of procedure make_drawable [2023-12-02 14:32:50,544 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_ttm_backend_bind [2023-12-02 14:32:50,544 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_ttm_backend_bind [2023-12-02 14:32:50,544 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_reap_surf [2023-12-02 14:32:50,544 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_reap_surf [2023-12-02 14:32:50,544 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-12-02 14:32:50,544 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-12-02 14:32:50,544 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_ttm_io_mem_free [2023-12-02 14:32:50,545 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_ttm_io_mem_free [2023-12-02 14:32:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2023-12-02 14:32:50,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2023-12-02 14:32:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure __ttm_bo_unreserve [2023-12-02 14:32:50,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __ttm_bo_unreserve [2023-12-02 14:32:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_init_mm [2023-12-02 14:32:50,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_init_mm [2023-12-02 14:32:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put_mutex [2023-12-02 14:32:50,545 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put_mutex [2023-12-02 14:32:50,545 INFO L130 BoogieDeclarations]: Found specification of procedure drm_helper_connector_dpms [2023-12-02 14:32:50,546 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_helper_connector_dpms [2023-12-02 14:32:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_mode_dumb_mmap [2023-12-02 14:32:50,546 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_mode_dumb_mmap [2023-12-02 14:32:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_ttm_backend_destroy [2023-12-02 14:32:50,546 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_ttm_backend_destroy [2023-12-02 14:32:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure drm_fb_helper_check_var [2023-12-02 14:32:50,546 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_fb_helper_check_var [2023-12-02 14:32:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_bo_clean_mm [2023-12-02 14:32:50,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_bo_clean_mm [2023-12-02 14:32:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_check_idle [2023-12-02 14:32:50,546 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_check_idle [2023-12-02 14:32:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_user_framebuffer_destroy [2023-12-02 14:32:50,547 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_user_framebuffer_destroy [2023-12-02 14:32:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 14:32:50,547 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 14:32:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_handle_create [2023-12-02 14:32:50,547 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_handle_create [2023-12-02 14:32:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_gpu_offset [2023-12-02 14:32:50,547 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_gpu_offset [2023-12-02 14:32:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 14:32:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_deferred_io [2023-12-02 14:32:50,547 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_deferred_io [2023-12-02 14:32:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 14:32:50,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 14:32:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_conn_destroy [2023-12-02 14:32:50,548 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_conn_destroy [2023-12-02 14:32:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_conn_restore [2023-12-02 14:32:50,548 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_conn_restore [2023-12-02 14:32:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure drm_framebuffer_cleanup [2023-12-02 14:32:50,549 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_framebuffer_cleanup [2023-12-02 14:32:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_ttm_bo_destroy [2023-12-02 14:32:50,549 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_ttm_bo_destroy [2023-12-02 14:32:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_release_validate_bo [2023-12-02 14:32:50,549 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_release_validate_bo [2023-12-02 14:32:50,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-12-02 14:32:50,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-12-02 14:32:50,550 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_surface_id_alloc [2023-12-02 14:32:50,550 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_surface_id_alloc [2023-12-02 14:32:50,550 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2023-12-02 14:32:50,550 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2023-12-02 14:32:50,550 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-12-02 14:32:50,550 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-12-02 14:32:50,550 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_fb_dirty_flush [2023-12-02 14:32:50,550 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_fb_dirty_flush [2023-12-02 14:32:50,550 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-12-02 14:32:50,550 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-12-02 14:32:50,550 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_add [2023-12-02 14:32:50,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_add [2023-12-02 14:32:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_create_monitors_object [2023-12-02 14:32:50,551 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_create_monitors_object [2023-12-02 14:32:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_release_unmap [2023-12-02 14:32:50,551 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_release_unmap [2023-12-02 14:32:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure ttm_mem_io_unlock [2023-12-02 14:32:50,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ttm_mem_io_unlock [2023-12-02 14:32:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure drm_crtc_helper_set_config [2023-12-02 14:32:50,551 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_crtc_helper_set_config [2023-12-02 14:32:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2023-12-02 14:32:50,551 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2023-12-02 14:32:50,551 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-12-02 14:32:50,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-12-02 14:32:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_verify_access [2023-12-02 14:32:50,552 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_verify_access [2023-12-02 14:32:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_gem_object_create [2023-12-02 14:32:50,552 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_gem_object_create [2023-12-02 14:32:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2023-12-02 14:32:50,552 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2023-12-02 14:32:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_crtc_destroy [2023-12-02 14:32:50,552 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_crtc_destroy [2023-12-02 14:32:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_crtc_mode_set [2023-12-02 14:32:50,552 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_crtc_mode_set [2023-12-02 14:32:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_fb_find_or_create_single [2023-12-02 14:32:50,552 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_fb_find_or_create_single [2023-12-02 14:32:50,552 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_crtc_commit [2023-12-02 14:32:50,553 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_crtc_commit [2023-12-02 14:32:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_image_free_objects [2023-12-02 14:32:50,553 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_image_free_objects [2023-12-02 14:32:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure drm_poll [2023-12-02 14:32:50,553 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_poll [2023-12-02 14:32:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_io_cmd_user [2023-12-02 14:32:50,553 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_io_cmd_user [2023-12-02 14:32:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_2 [2023-12-02 14:32:50,553 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_2 [2023-12-02 14:32:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-12-02 14:32:50,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-12-02 14:32:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_ttm_tt_unpopulate [2023-12-02 14:32:50,553 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_ttm_tt_unpopulate [2023-12-02 14:32:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_release_map [2023-12-02 14:32:50,554 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_release_map [2023-12-02 14:32:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure drm_gem_object_lookup [2023-12-02 14:32:50,554 INFO L138 BoogieDeclarations]: Found implementation of procedure drm_gem_object_lookup [2023-12-02 14:32:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_drm_resume [2023-12-02 14:32:50,554 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_drm_resume [2023-12-02 14:32:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-12-02 14:32:50,554 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-12-02 14:32:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-12-02 14:32:50,554 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-12-02 14:32:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_client_monitors_config_work_func [2023-12-02 14:32:50,554 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_client_monitors_config_work_func [2023-12-02 14:32:50,554 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_ring_push [2023-12-02 14:32:50,555 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_ring_push [2023-12-02 14:32:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_pm_freeze [2023-12-02 14:32:50,555 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_pm_freeze [2023-12-02 14:32:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_get_qdev [2023-12-02 14:32:50,555 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_get_qdev [2023-12-02 14:32:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:32:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-12-02 14:32:50,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-12-02 14:32:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure idr_replace [2023-12-02 14:32:50,555 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_replace [2023-12-02 14:32:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_gem_prime_mmap [2023-12-02 14:32:50,555 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_gem_prime_mmap [2023-12-02 14:32:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_bo_reserve [2023-12-02 14:32:50,556 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_bo_reserve [2023-12-02 14:32:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure qxl_ttm_bo_is_qxl_bo [2023-12-02 14:32:50,556 INFO L138 BoogieDeclarations]: Found implementation of procedure qxl_ttm_bo_is_qxl_bo [2023-12-02 14:32:50,556 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-12-02 14:32:50,556 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-12-02 14:32:52,049 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:32:52,054 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:32:52,391 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 14:33:09,852 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:33:13,262 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:33:13,262 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 14:33:13,265 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:33:13 BoogieIcfgContainer [2023-12-02 14:33:13,265 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:33:13,268 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:33:13,268 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:33:13,272 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:33:13,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:32:42" (1/3) ... [2023-12-02 14:33:13,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccc67c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:33:13, skipping insertion in model container [2023-12-02 14:33:13,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:32:49" (2/3) ... [2023-12-02 14:33:13,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ccc67c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:33:13, skipping insertion in model container [2023-12-02 14:33:13,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:33:13" (3/3) ... [2023-12-02 14:33:13,274 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--gpu--drm--qxl--qxl.ko-entry_point.cil.out.i [2023-12-02 14:33:13,295 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:33:13,295 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 14:33:13,405 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:33:13,412 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;@3ad1ce21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:33:13,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 14:33:13,430 INFO L276 IsEmpty]: Start isEmpty. Operand has 3727 states, 2298 states have (on average 1.3320278503046128) internal successors, (3061), 2388 states have internal predecessors, (3061), 1169 states have call successors, (1169), 259 states have call predecessors, (1169), 258 states have return successors, (1149), 1118 states have call predecessors, (1149), 1149 states have call successors, (1149) [2023-12-02 14:33:13,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-12-02 14:33:13,461 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:33:13,463 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 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] [2023-12-02 14:33:13,463 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:33:13,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:33:13,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1950647833, now seen corresponding path program 1 times [2023-12-02 14:33:13,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:33:13,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117872023] [2023-12-02 14:33:13,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:33:13,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:33:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:33:14,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1551 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2023-12-02 14:33:14,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:33:14,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117872023] [2023-12-02 14:33:14,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117872023] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:33:14,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:33:14,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:33:14,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251887083] [2023-12-02 14:33:14,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:33:14,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:33:14,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:33:14,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:33:14,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:33:14,882 INFO L87 Difference]: Start difference. First operand has 3727 states, 2298 states have (on average 1.3320278503046128) internal successors, (3061), 2388 states have internal predecessors, (3061), 1169 states have call successors, (1169), 259 states have call predecessors, (1169), 258 states have return successors, (1149), 1118 states have call predecessors, (1149), 1149 states have call successors, (1149) Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2023-12-02 14:33:20,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:33:25,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:33:27,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:33:27,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:33:27,585 INFO L93 Difference]: Finished difference Result 10440 states and 15374 transitions. [2023-12-02 14:33:27,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:33:27,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 336 [2023-12-02 14:33:27,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:33:27,649 INFO L225 Difference]: With dead ends: 10440 [2023-12-02 14:33:27,649 INFO L226 Difference]: Without dead ends: 6716 [2023-12-02 14:33:27,675 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 14:33:27,678 INFO L413 NwaCegarLoop]: 4895 mSDtfsCounter, 4455 mSDsluCounter, 4755 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4455 SdHoareTripleChecker+Valid, 9650 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-12-02 14:33:27,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4455 Valid, 9650 Invalid, 1011 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1006 Invalid, 3 Unknown, 0 Unchecked, 12.2s Time] [2023-12-02 14:33:27,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6716 states. [2023-12-02 14:33:27,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6716 to 6711. [2023-12-02 14:33:28,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6711 states, 4170 states have (on average 1.3227817745803356) internal successors, (5516), 4296 states have internal predecessors, (5516), 2060 states have call successors, (2060), 481 states have call predecessors, (2060), 480 states have return successors, (2058), 1995 states have call predecessors, (2058), 2058 states have call successors, (2058) [2023-12-02 14:33:28,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6711 states to 6711 states and 9634 transitions. [2023-12-02 14:33:28,051 INFO L78 Accepts]: Start accepts. Automaton has 6711 states and 9634 transitions. Word has length 336 [2023-12-02 14:33:28,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:33:28,053 INFO L495 AbstractCegarLoop]: Abstraction has 6711 states and 9634 transitions. [2023-12-02 14:33:28,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2023-12-02 14:33:28,054 INFO L276 IsEmpty]: Start isEmpty. Operand 6711 states and 9634 transitions. [2023-12-02 14:33:28,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2023-12-02 14:33:28,062 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:33:28,062 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 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] [2023-12-02 14:33:28,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:33:28,063 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:33:28,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:33:28,063 INFO L85 PathProgramCache]: Analyzing trace with hash 552147032, now seen corresponding path program 1 times [2023-12-02 14:33:28,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:33:28,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097969796] [2023-12-02 14:33:28,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:33:28,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:33:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:33:28,766 INFO L134 CoverageAnalysis]: Checked inductivity of 1551 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1551 trivial. 0 not checked. [2023-12-02 14:33:28,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:33:28,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097969796] [2023-12-02 14:33:28,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097969796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:33:28,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:33:28,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:33:28,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554251957] [2023-12-02 14:33:28,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:33:28,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:33:28,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:33:28,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:33:28,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:33:28,771 INFO L87 Difference]: Start difference. First operand 6711 states and 9634 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-02 14:33:30,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:33:36,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:33:40,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:33:42,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:33:44,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:33:44,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:33:44,684 INFO L93 Difference]: Finished difference Result 19689 states and 28246 transitions. [2023-12-02 14:33:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:33:44,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 345 [2023-12-02 14:33:44,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:33:44,765 INFO L225 Difference]: With dead ends: 19689 [2023-12-02 14:33:44,766 INFO L226 Difference]: Without dead ends: 13039 [2023-12-02 14:33:44,794 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 14:33:44,795 INFO L413 NwaCegarLoop]: 5604 mSDtfsCounter, 5081 mSDsluCounter, 4736 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5081 SdHoareTripleChecker+Valid, 10340 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2023-12-02 14:33:44,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5081 Valid, 10340 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1049 Invalid, 4 Unknown, 0 Unchecked, 15.4s Time] [2023-12-02 14:33:44,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13039 states. [2023-12-02 14:33:45,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13039 to 13033. [2023-12-02 14:33:45,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13033 states, 8107 states have (on average 1.3230541507339337) internal successors, (10726), 8359 states have internal predecessors, (10726), 3986 states have call successors, (3986), 940 states have call predecessors, (3986), 939 states have return successors, (3984), 3857 states have call predecessors, (3984), 3984 states have call successors, (3984) [2023-12-02 14:33:45,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13033 states to 13033 states and 18696 transitions. [2023-12-02 14:33:45,506 INFO L78 Accepts]: Start accepts. Automaton has 13033 states and 18696 transitions. Word has length 345 [2023-12-02 14:33:45,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:33:45,508 INFO L495 AbstractCegarLoop]: Abstraction has 13033 states and 18696 transitions. [2023-12-02 14:33:45,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-02 14:33:45,509 INFO L276 IsEmpty]: Start isEmpty. Operand 13033 states and 18696 transitions. [2023-12-02 14:33:45,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2023-12-02 14:33:45,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:33:45,516 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 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 14:33:45,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:33:45,516 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:33:45,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:33:45,517 INFO L85 PathProgramCache]: Analyzing trace with hash 339989636, now seen corresponding path program 1 times [2023-12-02 14:33:45,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:33:45,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713391181] [2023-12-02 14:33:45,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:33:45,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:33:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:33:45,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:33:45,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713391181] [2023-12-02 14:33:45,914 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-02 14:33:45,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784348711] [2023-12-02 14:33:45,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:33:45,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:33:45,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:33:45,915 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:33:45,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 14:33:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:33:48,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 5733 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 14:33:48,120 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:33:48,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1841 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 1561 trivial. 0 not checked. [2023-12-02 14:33:48,252 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:33:48,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784348711] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:33:48,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:33:48,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:33:48,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346980610] [2023-12-02 14:33:48,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:33:48,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:33:48,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:33:48,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:33:48,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:33:48,254 INFO L87 Difference]: Start difference. First operand 13033 states and 18696 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-02 14:33:50,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:33:54,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:33:59,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:34:01,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:34:01,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:34:01,988 INFO L93 Difference]: Finished difference Result 38425 states and 55081 transitions. [2023-12-02 14:34:01,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:34:01,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 369 [2023-12-02 14:34:01,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:34:02,125 INFO L225 Difference]: With dead ends: 38425 [2023-12-02 14:34:02,125 INFO L226 Difference]: Without dead ends: 25453 [2023-12-02 14:34:02,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 367 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 14:34:02,180 INFO L413 NwaCegarLoop]: 5872 mSDtfsCounter, 5060 mSDsluCounter, 4744 mSDsCounter, 0 mSdLazyCounter, 1089 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5060 SdHoareTripleChecker+Valid, 10616 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1089 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:34:02,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5060 Valid, 10616 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1089 Invalid, 4 Unknown, 0 Unchecked, 13.1s Time] [2023-12-02 14:34:02,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25453 states. [2023-12-02 14:34:03,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25453 to 25450. [2023-12-02 14:34:03,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25450 states, 15856 states have (on average 1.3251765893037335) internal successors, (21012), 16342 states have internal predecessors, (21012), 7730 states have call successors, (7730), 1864 states have call predecessors, (7730), 1863 states have return successors, (7728), 7477 states have call predecessors, (7728), 7728 states have call successors, (7728) [2023-12-02 14:34:03,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25450 states to 25450 states and 36470 transitions. [2023-12-02 14:34:03,171 INFO L78 Accepts]: Start accepts. Automaton has 25450 states and 36470 transitions. Word has length 369 [2023-12-02 14:34:03,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:34:03,172 INFO L495 AbstractCegarLoop]: Abstraction has 25450 states and 36470 transitions. [2023-12-02 14:34:03,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-12-02 14:34:03,173 INFO L276 IsEmpty]: Start isEmpty. Operand 25450 states and 36470 transitions. [2023-12-02 14:34:03,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2023-12-02 14:34:03,181 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:34:03,181 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 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 14:34:03,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 14:34:03,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:34:03,382 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:34:03,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:34:03,383 INFO L85 PathProgramCache]: Analyzing trace with hash 485104488, now seen corresponding path program 1 times [2023-12-02 14:34:03,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:34:03,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986623292] [2023-12-02 14:34:03,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:34:03,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:34:03,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:34:04,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2156 trivial. 0 not checked. [2023-12-02 14:34:04,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:34:04,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986623292] [2023-12-02 14:34:04,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986623292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:34:04,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:34:04,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:34:04,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179368715] [2023-12-02 14:34:04,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:34:04,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:34:04,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:34:04,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:34:04,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:34:04,138 INFO L87 Difference]: Start difference. First operand 25450 states and 36470 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-02 14:34:06,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:34:09,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:34:11,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:34:16,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:34:18,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:34:19,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:34:19,404 INFO L93 Difference]: Finished difference Result 75915 states and 108762 transitions. [2023-12-02 14:34:19,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:34:19,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 393 [2023-12-02 14:34:19,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:34:19,581 INFO L225 Difference]: With dead ends: 75915 [2023-12-02 14:34:19,581 INFO L226 Difference]: Without dead ends: 50526 [2023-12-02 14:34:19,684 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 14:34:19,685 INFO L413 NwaCegarLoop]: 6012 mSDtfsCounter, 5222 mSDsluCounter, 4739 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5222 SdHoareTripleChecker+Valid, 10751 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:34:19,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5222 Valid, 10751 Invalid, 1105 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1099 Invalid, 4 Unknown, 0 Unchecked, 14.0s Time] [2023-12-02 14:34:19,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50526 states. [2023-12-02 14:34:22,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50526 to 50520. [2023-12-02 14:34:22,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50520 states, 31478 states have (on average 1.3255607090666497) internal successors, (41726), 32450 states have internal predecessors, (41726), 15323 states have call successors, (15323), 3719 states have call predecessors, (15323), 3718 states have return successors, (15321), 14818 states have call predecessors, (15321), 15321 states have call successors, (15321) [2023-12-02 14:34:22,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50520 states to 50520 states and 72370 transitions. [2023-12-02 14:34:22,428 INFO L78 Accepts]: Start accepts. Automaton has 50520 states and 72370 transitions. Word has length 393 [2023-12-02 14:34:22,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:34:22,430 INFO L495 AbstractCegarLoop]: Abstraction has 50520 states and 72370 transitions. [2023-12-02 14:34:22,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-12-02 14:34:22,430 INFO L276 IsEmpty]: Start isEmpty. Operand 50520 states and 72370 transitions. [2023-12-02 14:34:22,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2023-12-02 14:34:22,436 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:34:22,437 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 14, 14, 14, 14, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:34:22,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 14:34:22,437 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:34:22,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:34:22,438 INFO L85 PathProgramCache]: Analyzing trace with hash 656371201, now seen corresponding path program 1 times [2023-12-02 14:34:22,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:34:22,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918300260] [2023-12-02 14:34:22,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:34:22,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:34:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:34:23,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2009 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2009 trivial. 0 not checked. [2023-12-02 14:34:23,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:34:23,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918300260] [2023-12-02 14:34:23,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918300260] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:34:23,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:34:23,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:34:23,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684873731] [2023-12-02 14:34:23,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:34:23,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:34:23,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:34:23,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:34:23,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:34:23,158 INFO L87 Difference]: Start difference. First operand 50520 states and 72370 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-02 14:34:25,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:34:29,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:34:36,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:34:38,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:34:39,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:34:39,695 INFO L93 Difference]: Finished difference Result 150851 states and 216052 transitions. [2023-12-02 14:34:39,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:34:39,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 383 [2023-12-02 14:34:39,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:34:40,219 INFO L225 Difference]: With dead ends: 150851 [2023-12-02 14:34:40,219 INFO L226 Difference]: Without dead ends: 100392 [2023-12-02 14:34:40,346 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 14:34:40,347 INFO L413 NwaCegarLoop]: 6068 mSDtfsCounter, 5185 mSDsluCounter, 4745 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5185 SdHoareTripleChecker+Valid, 10813 SdHoareTripleChecker+Invalid, 1103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-12-02 14:34:40,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5185 Valid, 10813 Invalid, 1103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1097 Invalid, 4 Unknown, 0 Unchecked, 13.9s Time] [2023-12-02 14:34:40,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100392 states. [2023-12-02 14:34:43,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100392 to 100380. [2023-12-02 14:34:43,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100380 states, 62570 states have (on average 1.3262905545788717) internal successors, (82986), 64514 states have internal predecessors, (82986), 30381 states have call successors, (30381), 7429 states have call predecessors, (30381), 7428 states have return successors, (30379), 29372 states have call predecessors, (30379), 30379 states have call successors, (30379) [2023-12-02 14:34:44,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100380 states to 100380 states and 143746 transitions. [2023-12-02 14:34:44,436 INFO L78 Accepts]: Start accepts. Automaton has 100380 states and 143746 transitions. Word has length 383 [2023-12-02 14:34:44,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:34:44,437 INFO L495 AbstractCegarLoop]: Abstraction has 100380 states and 143746 transitions. [2023-12-02 14:34:44,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-12-02 14:34:44,437 INFO L276 IsEmpty]: Start isEmpty. Operand 100380 states and 143746 transitions. [2023-12-02 14:34:44,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2023-12-02 14:34:44,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:34:44,449 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 18, 18, 18, 18, 18, 18, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:34:44,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 14:34:44,449 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:34:44,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:34:44,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1611303893, now seen corresponding path program 1 times [2023-12-02 14:34:44,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:34:44,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424289775] [2023-12-02 14:34:44,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:34:44,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:34:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:34:45,447 INFO L134 CoverageAnalysis]: Checked inductivity of 3151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3151 trivial. 0 not checked. [2023-12-02 14:34:45,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:34:45,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424289775] [2023-12-02 14:34:45,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424289775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:34:45,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:34:45,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:34:45,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289888113] [2023-12-02 14:34:45,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:34:45,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:34:45,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:34:45,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:34:45,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:34:45,450 INFO L87 Difference]: Start difference. First operand 100380 states and 143746 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2023-12-02 14:34:49,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:34:59,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:35:01,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:35:03,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:35:03,741 INFO L93 Difference]: Finished difference Result 294148 states and 420583 transitions. [2023-12-02 14:35:03,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:35:03,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 448 [2023-12-02 14:35:03,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:35:04,779 INFO L225 Difference]: With dead ends: 294148 [2023-12-02 14:35:04,779 INFO L226 Difference]: Without dead ends: 193829 [2023-12-02 14:35:05,057 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 14:35:05,058 INFO L413 NwaCegarLoop]: 6187 mSDtfsCounter, 5014 mSDsluCounter, 4721 mSDsCounter, 0 mSdLazyCounter, 1127 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5014 SdHoareTripleChecker+Valid, 10908 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1127 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-12-02 14:35:05,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5014 Valid, 10908 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1127 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time] [2023-12-02 14:35:05,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193829 states. [2023-12-02 14:35:12,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193829 to 193824. [2023-12-02 14:35:12,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193824 states, 121024 states have (on average 1.3273400317292439) internal successors, (160640), 124768 states have internal predecessors, (160640), 58127 states have call successors, (58127), 14673 states have call predecessors, (58127), 14672 states have return successors, (58125), 56110 states have call predecessors, (58125), 58125 states have call successors, (58125) [2023-12-02 14:35:13,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193824 states to 193824 states and 276892 transitions. [2023-12-02 14:35:13,512 INFO L78 Accepts]: Start accepts. Automaton has 193824 states and 276892 transitions. Word has length 448 [2023-12-02 14:35:13,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:35:13,513 INFO L495 AbstractCegarLoop]: Abstraction has 193824 states and 276892 transitions. [2023-12-02 14:35:13,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2023-12-02 14:35:13,513 INFO L276 IsEmpty]: Start isEmpty. Operand 193824 states and 276892 transitions. [2023-12-02 14:35:13,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2023-12-02 14:35:13,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:35:13,519 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:35:13,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 14:35:13,519 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:35:13,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:35:13,519 INFO L85 PathProgramCache]: Analyzing trace with hash -815713272, now seen corresponding path program 1 times [2023-12-02 14:35:13,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:35:13,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041108182] [2023-12-02 14:35:13,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:35:13,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:35:13,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:35:13,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:35:13,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041108182] [2023-12-02 14:35:13,882 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-02 14:35:13,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724453612] [2023-12-02 14:35:13,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:35:13,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:35:13,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:35:13,886 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:35:13,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 14:35:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:35:16,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 6716 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 14:35:16,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:35:16,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 1568 trivial. 0 not checked. [2023-12-02 14:35:16,209 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 14:35:16,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724453612] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:35:16,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:35:16,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:35:16,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044864105] [2023-12-02 14:35:16,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:35:16,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:35:16,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:35:16,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:35:16,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:35:16,213 INFO L87 Difference]: Start difference. First operand 193824 states and 276892 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2023-12-02 14:35:20,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:35:35,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:35:36,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:35:39,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:35:39,728 INFO L93 Difference]: Finished difference Result 578391 states and 826048 transitions. [2023-12-02 14:35:39,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:35:39,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) Word has length 435 [2023-12-02 14:35:39,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:35:41,532 INFO L225 Difference]: With dead ends: 578391 [2023-12-02 14:35:41,532 INFO L226 Difference]: Without dead ends: 384628 [2023-12-02 14:35:42,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 433 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 14:35:42,279 INFO L413 NwaCegarLoop]: 6362 mSDtfsCounter, 5145 mSDsluCounter, 4742 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5145 SdHoareTripleChecker+Valid, 11104 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:35:42,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5145 Valid, 11104 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1118 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2023-12-02 14:35:42,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384628 states. [2023-12-02 14:35:57,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384628 to 384608. [2023-12-02 14:35:57,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384608 states, 240016 states have (on average 1.32637824145057) internal successors, (318352), 247440 states have internal predecessors, (318352), 115375 states have call successors, (115375), 29217 states have call predecessors, (115375), 29216 states have return successors, (115373), 111342 states have call predecessors, (115373), 115373 states have call successors, (115373) [2023-12-02 14:36:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384608 states to 384608 states and 549100 transitions. [2023-12-02 14:36:00,206 INFO L78 Accepts]: Start accepts. Automaton has 384608 states and 549100 transitions. Word has length 435 [2023-12-02 14:36:00,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:36:00,207 INFO L495 AbstractCegarLoop]: Abstraction has 384608 states and 549100 transitions. [2023-12-02 14:36:00,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48) [2023-12-02 14:36:00,208 INFO L276 IsEmpty]: Start isEmpty. Operand 384608 states and 549100 transitions. [2023-12-02 14:36:00,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2023-12-02 14:36:00,213 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:36:00,213 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 17, 17, 17, 17, 17, 17, 17, 17, 17, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:36:00,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 14:36:00,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864a2ee5-501f-4338-901a-f09ab83b2dbc/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:36:00,414 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:36:00,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:36:00,415 INFO L85 PathProgramCache]: Analyzing trace with hash 2115586639, now seen corresponding path program 1 times [2023-12-02 14:36:00,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:36:00,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753153733] [2023-12-02 14:36:00,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:36:00,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:36:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:36:00,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2842 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2842 trivial. 0 not checked. [2023-12-02 14:36:00,915 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:36:00,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753153733] [2023-12-02 14:36:00,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753153733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:36:00,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:36:00,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:36:00,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143996844] [2023-12-02 14:36:00,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:36:00,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:36:00,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:36:00,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:36:00,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:36:00,918 INFO L87 Difference]: Start difference. First operand 384608 states and 549100 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2023-12-02 14:36:02,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:36:04,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:36:30,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:36:32,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 14:36:39,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:36:39,868 INFO L93 Difference]: Finished difference Result 1140170 states and 1626349 transitions. [2023-12-02 14:36:39,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:36:39,869 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 451 [2023-12-02 14:36:39,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:36:43,601 INFO L225 Difference]: With dead ends: 1140170 [2023-12-02 14:36:43,601 INFO L226 Difference]: Without dead ends: 755623 [2023-12-02 14:36:44,712 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 14:36:44,713 INFO L413 NwaCegarLoop]: 8076 mSDtfsCounter, 5082 mSDsluCounter, 4722 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5082 SdHoareTripleChecker+Valid, 12798 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2023-12-02 14:36:44,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5082 Valid, 12798 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1287 Invalid, 2 Unknown, 0 Unchecked, 13.5s Time] [2023-12-02 14:36:45,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755623 states.