./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-32_7a-drivers--char--lp.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c68118f-a16e-4b8d-b748-ce63f7935692/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c68118f-a16e-4b8d-b748-ce63f7935692/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c68118f-a16e-4b8d-b748-ce63f7935692/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c68118f-a16e-4b8d-b748-ce63f7935692/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c68118f-a16e-4b8d-b748-ce63f7935692/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c68118f-a16e-4b8d-b748-ce63f7935692/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 96a9bd06c2a0348ab1a93991deedda2ae571d70e4f7fb0e32175d69384f432c0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:18:49,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:18:49,995 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c68118f-a16e-4b8d-b748-ce63f7935692/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:18:50,001 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:18:50,002 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:18:50,057 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:18:50,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:18:50,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:18:50,059 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:18:50,064 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:18:50,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:18:50,066 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:18:50,067 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:18:50,068 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:18:50,069 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:18:50,069 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:18:50,070 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:18:50,070 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:18:50,070 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:18:50,071 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:18:50,071 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:18:50,072 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:18:50,072 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:18:50,072 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:18:50,073 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:18:50,074 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:18:50,074 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:18:50,075 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:18:50,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:18:50,075 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:18:50,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:18:50,077 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:18:50,077 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:18:50,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:18:50,094 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:18:50,094 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:18:50,094 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:18:50,094 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:18:50,095 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:18:50,095 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8c68118f-a16e-4b8d-b748-ce63f7935692/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c68118f-a16e-4b8d-b748-ce63f7935692/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96a9bd06c2a0348ab1a93991deedda2ae571d70e4f7fb0e32175d69384f432c0 [2023-11-21 22:18:50,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:18:50,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:18:50,437 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:18:50,438 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:18:50,439 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:18:50,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c68118f-a16e-4b8d-b748-ce63f7935692/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2023-11-21 22:18:53,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:18:53,902 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:18:53,902 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c68118f-a16e-4b8d-b748-ce63f7935692/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2023-11-21 22:18:53,963 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c68118f-a16e-4b8d-b748-ce63f7935692/bin/uautomizer-verify-bycVGegfSx/data/93a257f7b/0c114a2105de4a9b835c321b8b26e2b7/FLAG2835e4e75 [2023-11-21 22:18:53,978 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c68118f-a16e-4b8d-b748-ce63f7935692/bin/uautomizer-verify-bycVGegfSx/data/93a257f7b/0c114a2105de4a9b835c321b8b26e2b7 [2023-11-21 22:18:53,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:18:53,987 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:18:53,989 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:18:53,990 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:18:53,994 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:18:53,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:53" (1/1) ... [2023-11-21 22:18:53,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20cf057c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:53, skipping insertion in model container [2023-11-21 22:18:53,996 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:53" (1/1) ... [2023-11-21 22:18:54,109 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:18:55,592 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_8c68118f-a16e-4b8d-b748-ce63f7935692/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i[147706,147719] [2023-11-21 22:18:55,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:18:55,794 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:18:55,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3376] [2023-11-21 22:18:55,890 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3384-3385] [2023-11-21 22:18:55,891 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3393-3394] [2023-11-21 22:18:55,892 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [3402-3403] [2023-11-21 22:18:55,893 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3421] [2023-11-21 22:18:55,893 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3424] [2023-11-21 22:18:55,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3427] [2023-11-21 22:18:55,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3430] [2023-11-21 22:18:55,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3451] [2023-11-21 22:18:55,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3454] [2023-11-21 22:18:55,904 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3457] [2023-11-21 22:18:55,904 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3460] [2023-11-21 22:18:56,097 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_8c68118f-a16e-4b8d-b748-ce63f7935692/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i[147706,147719] [2023-11-21 22:18:56,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:18:56,282 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:18:56,283 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:18:56,283 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:18:56,291 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:18:56,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:56 WrapperNode [2023-11-21 22:18:56,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:18:56,293 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:18:56,293 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:18:56,294 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:18:56,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:56" (1/1) ... [2023-11-21 22:18:56,397 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:56" (1/1) ... [2023-11-21 22:18:56,523 INFO L138 Inliner]: procedures = 222, calls = 892, calls flagged for inlining = 80, calls inlined = 75, statements flattened = 2700 [2023-11-21 22:18:56,524 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:18:56,525 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:18:56,525 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:18:56,525 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:18:56,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:56" (1/1) ... [2023-11-21 22:18:56,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:56" (1/1) ... [2023-11-21 22:18:56,551 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:56" (1/1) ... [2023-11-21 22:18:56,712 INFO L187 HeapSplitter]: Split 378 memory accesses to 19 slices as follows [2, 5, 5, 27, 28, 15, 15, 24, 3, 5, 6, 8, 196, 10, 3, 14, 8, 1, 3] [2023-11-21 22:18:56,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:56" (1/1) ... [2023-11-21 22:18:56,713 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:56" (1/1) ... [2023-11-21 22:18:56,796 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:56" (1/1) ... [2023-11-21 22:18:56,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:56" (1/1) ... [2023-11-21 22:18:56,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:56" (1/1) ... [2023-11-21 22:18:56,873 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:56" (1/1) ... [2023-11-21 22:18:56,903 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:18:56,904 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:18:56,904 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:18:56,904 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:18:56,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:56" (1/1) ... [2023-11-21 22:18:56,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:18:56,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c68118f-a16e-4b8d-b748-ce63f7935692/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:18:56,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c68118f-a16e-4b8d-b748-ce63f7935692/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:18:56,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c68118f-a16e-4b8d-b748-ce63f7935692/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:18:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2023-11-21 22:18:56,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2023-11-21 22:18:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-21 22:18:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure lp_error [2023-11-21 22:18:56,988 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_error [2023-11-21 22:18:56,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 22:18:56,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 22:18:56,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 22:18:56,988 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 22:18:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure lp_register [2023-11-21 22:18:56,989 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_register [2023-11-21 22:18:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2023-11-21 22:18:56,989 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2023-11-21 22:18:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-21 22:18:56,990 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-21 22:18:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release_parport [2023-11-21 22:18:56,990 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release_parport [2023-11-21 22:18:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:18:56,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:18:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 22:18:56,991 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 22:18:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 22:18:56,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 22:18:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:18:56,991 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:18:56,992 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-21 22:18:56,992 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-21 22:18:56,992 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-21 22:18:56,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-21 22:18:56,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2023-11-21 22:18:56,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2023-11-21 22:18:56,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:18:56,993 INFO L130 BoogieDeclarations]: Found specification of procedure lp_set_timeout [2023-11-21 22:18:56,993 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_set_timeout [2023-11-21 22:18:56,993 INFO L130 BoogieDeclarations]: Found specification of procedure lp_reset [2023-11-21 22:18:56,994 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_reset [2023-11-21 22:18:56,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_25 [2023-11-21 22:18:56,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_25 [2023-11-21 22:18:56,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-21 22:18:56,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-21 22:18:56,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-21 22:18:56,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-21 22:18:56,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-21 22:18:56,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-21 22:18:56,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-21 22:18:56,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-21 22:18:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-21 22:18:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-21 22:18:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-21 22:18:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-21 22:18:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-21 22:18:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-21 22:18:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-21 22:18:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-21 22:18:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-21 22:18:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-11-21 22:18:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-11-21 22:18:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-21 22:18:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-21 22:18:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-21 22:18:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-21 22:18:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-21 22:18:56,999 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-21 22:18:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure parport_write [2023-11-21 22:18:56,999 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_write [2023-11-21 22:18:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:18:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-21 22:18:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-21 22:18:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-21 22:18:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-21 22:18:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-21 22:18:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-21 22:18:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-21 22:18:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-21 22:18:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-21 22:18:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-21 22:18:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-21 22:18:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-21 22:18:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-21 22:18:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-21 22:18:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-21 22:18:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-21 22:18:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-11-21 22:18:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-11-21 22:18:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-11-21 22:18:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 22:18:57,003 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 22:18:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-21 22:18:57,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-21 22:18:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lp_mutex [2023-11-21 22:18:57,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lp_mutex [2023-11-21 22:18:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2023-11-21 22:18:57,004 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2023-11-21 22:18:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure parport_negotiate [2023-11-21 22:18:57,005 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_negotiate [2023-11-21 22:18:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure parport_release [2023-11-21 22:18:57,005 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_release [2023-11-21 22:18:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_console [2023-11-21 22:18:57,005 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_console [2023-11-21 22:18:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure parport_set_timeout [2023-11-21 22:18:57,006 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_set_timeout [2023-11-21 22:18:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:18:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 22:18:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 22:18:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 22:18:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 22:18:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 22:18:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-21 22:18:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-21 22:18:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-21 22:18:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-21 22:18:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-21 22:18:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-21 22:18:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-21 22:18:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-21 22:18:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-21 22:18:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-21 22:18:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-21 22:18:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-21 22:18:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-21 22:18:57,010 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim_or_block [2023-11-21 22:18:57,010 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim_or_block [2023-11-21 22:18:57,010 INFO L130 BoogieDeclarations]: Found specification of procedure lp_do_ioctl [2023-11-21 22:18:57,010 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_do_ioctl [2023-11-21 22:18:57,010 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2023-11-21 22:18:57,011 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2023-11-21 22:18:57,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:18:57,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 22:18:57,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 22:18:57,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 22:18:57,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 22:18:57,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 22:18:57,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-21 22:18:57,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-21 22:18:57,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-21 22:18:57,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-21 22:18:57,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-21 22:18:57,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-21 22:18:57,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-21 22:18:57,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-21 22:18:57,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-21 22:18:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-21 22:18:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-21 22:18:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-21 22:18:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-21 22:18:57,014 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-21 22:18:57,015 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-21 22:18:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 22:18:57,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 22:18:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-21 22:18:57,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-21 22:18:57,015 INFO L130 BoogieDeclarations]: Found specification of procedure lp_claim_parport_or_block [2023-11-21 22:18:57,016 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_claim_parport_or_block [2023-11-21 22:18:57,016 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2023-11-21 22:18:57,016 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2023-11-21 22:18:57,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:18:57,016 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-21 22:18:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-21 22:18:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2023-11-21 22:18:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-21 22:18:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-21 22:18:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-21 22:18:57,017 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-21 22:18:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:18:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-21 22:18:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-21 22:18:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-21 22:18:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-21 22:18:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-21 22:18:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-21 22:18:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-21 22:18:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-21 22:18:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-21 22:18:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-21 22:18:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-21 22:18:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-21 22:18:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-21 22:18:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-21 22:18:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-21 22:18:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-21 22:18:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-21 22:18:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-21 22:18:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-21 22:18:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-11-21 22:18:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-11-21 22:18:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-21 22:18:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure lp_detach [2023-11-21 22:18:57,022 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_detach [2023-11-21 22:18:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lp_mutex [2023-11-21 22:18:57,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lp_mutex [2023-11-21 22:18:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-21 22:18:57,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-21 22:18:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure lp_negotiate [2023-11-21 22:18:57,023 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_negotiate [2023-11-21 22:18:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-21 22:18:57,024 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-21 22:18:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2023-11-21 22:18:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2023-11-21 22:18:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure lp_wait_ready [2023-11-21 22:18:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_wait_ready [2023-11-21 22:18:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-21 22:18:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-21 22:18:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-11-21 22:18:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-11-21 22:18:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:18:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:18:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 22:18:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 22:18:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 22:18:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 22:18:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 22:18:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-21 22:18:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-21 22:18:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-21 22:18:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-21 22:18:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-21 22:18:57,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-21 22:18:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-21 22:18:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-21 22:18:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-21 22:18:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-21 22:18:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-21 22:18:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-21 22:18:57,062 INFO L130 BoogieDeclarations]: Found specification of procedure lp_write [2023-11-21 22:18:57,062 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_write [2023-11-21 22:18:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2023-11-21 22:18:57,063 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2023-11-21 22:18:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-21 22:18:57,063 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-21 22:18:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:18:57,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:18:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure parport_yield_blocking [2023-11-21 22:18:57,063 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_yield_blocking [2023-11-21 22:18:57,063 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-21 22:18:57,064 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-21 22:18:57,587 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:18:57,590 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:18:57,749 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 22:18:59,733 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:19:01,109 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:19:01,110 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:19:01,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:19:01 BoogieIcfgContainer [2023-11-21 22:19:01,112 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:19:01,114 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:19:01,114 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:19:01,118 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:19:01,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:18:53" (1/3) ... [2023-11-21 22:19:01,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49240452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:19:01, skipping insertion in model container [2023-11-21 22:19:01,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:56" (2/3) ... [2023-11-21 22:19:01,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49240452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:19:01, skipping insertion in model container [2023-11-21 22:19:01,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:19:01" (3/3) ... [2023-11-21 22:19:01,121 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2023-11-21 22:19:01,141 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:19:01,141 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:19:01,209 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:19:01,216 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=PETRI_NET, 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;@42a86b1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:19:01,216 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:19:01,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 690 states, 430 states have (on average 1.372093023255814) internal successors, (590), 452 states have internal predecessors, (590), 203 states have call successors, (203), 56 states have call predecessors, (203), 55 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2023-11-21 22:19:01,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-21 22:19:01,266 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:01,267 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:01,268 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:19:01,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:01,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1953424150, now seen corresponding path program 1 times [2023-11-21 22:19:01,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:01,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122202495] [2023-11-21 22:19:01,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:01,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:02,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:02,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:02,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:02,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:19:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:02,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:02,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:02,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 22:19:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:02,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:02,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:02,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 22:19:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:02,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:02,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:02,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:02,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-21 22:19:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:02,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:03,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:19:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-21 22:19:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-21 22:19:03,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-21 22:19:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-21 22:19:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-21 22:19:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-21 22:19:03,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-21 22:19:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-21 22:19:03,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-21 22:19:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,769 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2023-11-21 22:19:03,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:03,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122202495] [2023-11-21 22:19:03,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122202495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:03,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:03,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-21 22:19:03,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081558431] [2023-11-21 22:19:03,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:03,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:19:03,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:03,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:19:03,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:19:03,825 INFO L87 Difference]: Start difference. First operand has 690 states, 430 states have (on average 1.372093023255814) internal successors, (590), 452 states have internal predecessors, (590), 203 states have call successors, (203), 56 states have call predecessors, (203), 55 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-21 22:19:15,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:15,470 INFO L93 Difference]: Finished difference Result 1956 states and 2993 transitions. [2023-11-21 22:19:15,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:19:15,472 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 136 [2023-11-21 22:19:15,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:15,505 INFO L225 Difference]: With dead ends: 1956 [2023-11-21 22:19:15,505 INFO L226 Difference]: Without dead ends: 1274 [2023-11-21 22:19:15,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:19:15,522 INFO L413 NwaCegarLoop]: 1038 mSDtfsCounter, 1917 mSDsluCounter, 2748 mSDsCounter, 0 mSdLazyCounter, 2196 mSolverCounterSat, 856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 3786 SdHoareTripleChecker+Invalid, 3052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 856 IncrementalHoareTripleChecker+Valid, 2196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:15,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2053 Valid, 3786 Invalid, 3052 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [856 Valid, 2196 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2023-11-21 22:19:15,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2023-11-21 22:19:15,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 685. [2023-11-21 22:19:15,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 432 states have (on average 1.3541666666666667) internal successors, (585), 447 states have internal predecessors, (585), 198 states have call successors, (198), 55 states have call predecessors, (198), 54 states have return successors, (189), 189 states have call predecessors, (189), 189 states have call successors, (189) [2023-11-21 22:19:15,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 972 transitions. [2023-11-21 22:19:15,793 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 972 transitions. Word has length 136 [2023-11-21 22:19:15,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:15,797 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 972 transitions. [2023-11-21 22:19:15,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2023-11-21 22:19:15,798 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 972 transitions. [2023-11-21 22:19:15,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-21 22:19:15,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:15,811 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:15,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:19:15,811 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:19:15,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:15,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1330906589, now seen corresponding path program 1 times [2023-11-21 22:19:15,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:15,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596305578] [2023-11-21 22:19:15,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:15,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:19:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 22:19:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 22:19:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-21 22:19:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:19:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:16,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:17,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-21 22:19:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:17,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-21 22:19:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:17,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-21 22:19:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:17,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-21 22:19:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:17,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-21 22:19:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:17,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-21 22:19:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:17,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-21 22:19:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:17,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-21 22:19:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:17,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-21 22:19:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:17,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-21 22:19:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:17,209 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2023-11-21 22:19:17,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:17,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596305578] [2023-11-21 22:19:17,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596305578] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:17,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:17,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:19:17,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264525479] [2023-11-21 22:19:17,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:17,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:19:17,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:17,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:19:17,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:19:17,217 INFO L87 Difference]: Start difference. First operand 685 states and 972 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-21 22:19:23,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:23,876 INFO L93 Difference]: Finished difference Result 1590 states and 2249 transitions. [2023-11-21 22:19:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:19:23,877 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 139 [2023-11-21 22:19:23,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:23,888 INFO L225 Difference]: With dead ends: 1590 [2023-11-21 22:19:23,888 INFO L226 Difference]: Without dead ends: 939 [2023-11-21 22:19:23,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:19:23,893 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 915 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 909 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 1854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 909 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:23,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 1568 Invalid, 1854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [909 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-21 22:19:23,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2023-11-21 22:19:24,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 878. [2023-11-21 22:19:24,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 878 states, 567 states have (on average 1.3615520282186948) internal successors, (772), 584 states have internal predecessors, (772), 233 states have call successors, (233), 78 states have call predecessors, (233), 77 states have return successors, (224), 223 states have call predecessors, (224), 224 states have call successors, (224) [2023-11-21 22:19:24,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1229 transitions. [2023-11-21 22:19:24,078 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1229 transitions. Word has length 139 [2023-11-21 22:19:24,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:24,082 INFO L495 AbstractCegarLoop]: Abstraction has 878 states and 1229 transitions. [2023-11-21 22:19:24,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-21 22:19:24,082 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1229 transitions. [2023-11-21 22:19:24,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-21 22:19:24,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:24,086 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:24,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:19:24,086 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:19:24,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:24,087 INFO L85 PathProgramCache]: Analyzing trace with hash 276310036, now seen corresponding path program 1 times [2023-11-21 22:19:24,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:24,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649560322] [2023-11-21 22:19:24,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:24,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:19:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:24,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 22:19:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 22:19:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-21 22:19:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:19:24,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:24,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:25,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-21 22:19:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:25,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-21 22:19:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:25,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-21 22:19:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:25,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-21 22:19:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:25,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-21 22:19:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:25,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-21 22:19:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:25,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-21 22:19:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:25,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-21 22:19:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:25,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-21 22:19:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:25,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-21 22:19:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:25,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-21 22:19:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:25,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-21 22:19:25,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:25,419 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2023-11-21 22:19:25,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:25,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649560322] [2023-11-21 22:19:25,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649560322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:25,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:25,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:19:25,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276449018] [2023-11-21 22:19:25,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:25,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:19:25,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:25,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:19:25,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:19:25,422 INFO L87 Difference]: Start difference. First operand 878 states and 1229 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-21 22:19:36,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:36,242 INFO L93 Difference]: Finished difference Result 2541 states and 3570 transitions. [2023-11-21 22:19:36,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-21 22:19:36,243 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 141 [2023-11-21 22:19:36,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:36,257 INFO L225 Difference]: With dead ends: 2541 [2023-11-21 22:19:36,257 INFO L226 Difference]: Without dead ends: 1697 [2023-11-21 22:19:36,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-11-21 22:19:36,262 INFO L413 NwaCegarLoop]: 472 mSDtfsCounter, 2227 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 1995 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2365 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 3676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1995 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:36,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2365 Valid, 1264 Invalid, 3676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1995 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-11-21 22:19:36,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2023-11-21 22:19:36,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1615. [2023-11-21 22:19:36,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1615 states, 1045 states have (on average 1.3607655502392344) internal successors, (1422), 1069 states have internal predecessors, (1422), 421 states have call successors, (421), 149 states have call predecessors, (421), 148 states have return successors, (412), 411 states have call predecessors, (412), 412 states have call successors, (412) [2023-11-21 22:19:36,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1615 states to 1615 states and 2255 transitions. [2023-11-21 22:19:36,522 INFO L78 Accepts]: Start accepts. Automaton has 1615 states and 2255 transitions. Word has length 141 [2023-11-21 22:19:36,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:36,523 INFO L495 AbstractCegarLoop]: Abstraction has 1615 states and 2255 transitions. [2023-11-21 22:19:36,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-21 22:19:36,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1615 states and 2255 transitions. [2023-11-21 22:19:36,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-21 22:19:36,527 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:36,528 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:36,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:19:36,528 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:19:36,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:36,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1920930530, now seen corresponding path program 1 times [2023-11-21 22:19:36,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:36,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618559606] [2023-11-21 22:19:36,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:36,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:19:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 22:19:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 22:19:37,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-21 22:19:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:37,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-21 22:19:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:19:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:19:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-21 22:19:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-21 22:19:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-21 22:19:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-21 22:19:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-21 22:19:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-21 22:19:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-21 22:19:37,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-21 22:19:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-21 22:19:37,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-21 22:19:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:37,928 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2023-11-21 22:19:37,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:37,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618559606] [2023-11-21 22:19:37,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618559606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:37,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:37,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:19:37,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765706893] [2023-11-21 22:19:37,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:37,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:19:37,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:37,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:19:37,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:19:37,933 INFO L87 Difference]: Start difference. First operand 1615 states and 2255 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)