./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.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_758165cf-c648-4c7e-a81c-d38c57a59626/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_758165cf-c648-4c7e-a81c-d38c57a59626/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_758165cf-c648-4c7e-a81c-d38c57a59626/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_758165cf-c648-4c7e-a81c-d38c57a59626/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_758165cf-c648-4c7e-a81c-d38c57a59626/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_758165cf-c648-4c7e-a81c-d38c57a59626/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 27a3a7bacd5bfaa71ec936fdb60b09adb3a573df62752fe262468d392ed108c3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:00:55,426 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:00:55,553 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_758165cf-c648-4c7e-a81c-d38c57a59626/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 21:00:55,563 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:00:55,564 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:00:55,612 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:00:55,617 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:00:55,618 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:00:55,620 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:00:55,628 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:00:55,629 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:00:55,629 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:00:55,630 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:00:55,632 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:00:55,633 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:00:55,633 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:00:55,634 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:00:55,634 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:00:55,635 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:00:55,635 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:00:55,636 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:00:55,636 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:00:55,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:00:55,637 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:00:55,639 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:00:55,639 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:00:55,640 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:00:55,640 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:00:55,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:55,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:00:55,643 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:00:55,643 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:00:55,643 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:00:55,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:00:55,644 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:00:55,644 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:00:55,644 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:00:55,645 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:00:55,645 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:00:55,645 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_758165cf-c648-4c7e-a81c-d38c57a59626/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_758165cf-c648-4c7e-a81c-d38c57a59626/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27a3a7bacd5bfaa71ec936fdb60b09adb3a573df62752fe262468d392ed108c3 [2023-11-21 21:00:56,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:00:56,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:00:56,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:00:56,061 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:00:56,062 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:00:56,063 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_758165cf-c648-4c7e-a81c-d38c57a59626/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2023-11-21 21:00:59,532 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:01:00,299 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:01:00,300 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_758165cf-c648-4c7e-a81c-d38c57a59626/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2023-11-21 21:01:00,376 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_758165cf-c648-4c7e-a81c-d38c57a59626/bin/uautomizer-verify-bycVGegfSx/data/78ef60d5a/5cc6e95f26134bb182a26bc9602cb48e/FLAGdb8e5f217 [2023-11-21 21:01:00,398 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_758165cf-c648-4c7e-a81c-d38c57a59626/bin/uautomizer-verify-bycVGegfSx/data/78ef60d5a/5cc6e95f26134bb182a26bc9602cb48e [2023-11-21 21:01:00,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:01:00,409 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:01:00,414 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:01:00,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:01:00,421 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:01:00,422 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:01:00" (1/1) ... [2023-11-21 21:01:00,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5938f3ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:00, skipping insertion in model container [2023-11-21 21:01:00,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:01:00" (1/1) ... [2023-11-21 21:01:00,607 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:01:03,514 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_758165cf-c648-4c7e-a81c-d38c57a59626/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i[276778,276791] [2023-11-21 21:01:03,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:01:03,776 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:01:03,944 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)); [5752-5753] [2023-11-21 21:01:03,946 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [5760] [2023-11-21 21:01:03,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5781] [2023-11-21 21:01:03,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5784] [2023-11-21 21:01:03,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5787] [2023-11-21 21:01:03,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5790] [2023-11-21 21:01:04,017 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/zakharov_benchmarks/bench/cpa/work/current--X--drivers/media/firewire/firedtv.ko--X--x1linux-3.8-rc1--X--32_7a--X--cpachecker/linux-3.8-rc1/csd_deg_dscv/17/dscv_tempdir/dscv/ri/32_7a/drivers/media/firewire/firedtv-avc.c.prepared"), "i" (659), "i" (12UL)); [6630-6631] [2023-11-21 21:01:04,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [8238] [2023-11-21 21:01:04,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr)); [8245] [2023-11-21 21:01:04,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9121] [2023-11-21 21:01:04,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [9352] [2023-11-21 21:01:04,300 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"); [9748] [2023-11-21 21:01:04,312 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_758165cf-c648-4c7e-a81c-d38c57a59626/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i[276778,276791] [2023-11-21 21:01:04,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:01:04,506 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:01:04,506 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:01:04,516 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:01:04,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:04 WrapperNode [2023-11-21 21:01:04,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:01:04,519 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:01:04,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:01:04,520 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:01:04,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:04" (1/1) ... [2023-11-21 21:01:04,678 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:04" (1/1) ... [2023-11-21 21:01:04,958 INFO L138 Inliner]: procedures = 341, calls = 1955, calls flagged for inlining = 158, calls inlined = 154, statements flattened = 5557 [2023-11-21 21:01:04,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:01:04,960 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:01:04,960 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:01:04,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:01:04,994 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:04" (1/1) ... [2023-11-21 21:01:04,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:04" (1/1) ... [2023-11-21 21:01:05,058 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:04" (1/1) ... [2023-11-21 21:01:05,983 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memcpy is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 21:01:05,989 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:04" (1/1) ... [2023-11-21 21:01:05,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:04" (1/1) ... [2023-11-21 21:01:06,136 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:04" (1/1) ... [2023-11-21 21:01:06,178 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:04" (1/1) ... [2023-11-21 21:01:06,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:04" (1/1) ... [2023-11-21 21:01:06,228 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:04" (1/1) ... [2023-11-21 21:01:06,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:01:06,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:01:06,270 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:01:06,270 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:01:06,271 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:04" (1/1) ... [2023-11-21 21:01:06,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:01:06,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_758165cf-c648-4c7e-a81c-d38c57a59626/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:06,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_758165cf-c648-4c7e-a81c-d38c57a59626/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:06,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_758165cf-c648-4c7e-a81c-d38c57a59626/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:01:06,360 INFO L130 BoogieDeclarations]: Found specification of procedure queue_iso [2023-11-21 21:01:06,361 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_iso [2023-11-21 21:01:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-21 21:01:06,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-21 21:01:06,361 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_channel [2023-11-21 21:01:06,361 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_channel [2023-11-21 21:01:06,362 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_dvb_register [2023-11-21 21:01:06,363 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_dvb_register [2023-11-21 21:01:06,363 INFO L130 BoogieDeclarations]: Found specification of procedure cmp_establish_pp_connection [2023-11-21 21:01:06,364 INFO L138 BoogieDeclarations]: Found implementation of procedure cmp_establish_pp_connection [2023-11-21 21:01:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-21 21:01:06,365 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-21 21:01:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-21 21:01:06,365 INFO L130 BoogieDeclarations]: Found specification of procedure node_req [2023-11-21 21:01:06,367 INFO L138 BoogieDeclarations]: Found implementation of procedure node_req [2023-11-21 21:01:06,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 21:01:06,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 21:01:06,367 INFO L130 BoogieDeclarations]: Found specification of procedure cmp_lock [2023-11-21 21:01:06,370 INFO L138 BoogieDeclarations]: Found implementation of procedure cmp_lock [2023-11-21 21:01:06,370 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2023-11-21 21:01:06,371 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2023-11-21 21:01:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-11-21 21:01:06,371 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-11-21 21:01:06,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 21:01:06,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 21:01:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure cmp_read [2023-11-21 21:01:06,372 INFO L138 BoogieDeclarations]: Found implementation of procedure cmp_read [2023-11-21 21:01:06,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_demux_mutex_of_firedtv [2023-11-21 21:01:06,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_demux_mutex_of_firedtv [2023-11-21 21:01:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 21:01:06,373 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 21:01:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 21:01:06,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 21:01:06,373 INFO L130 BoogieDeclarations]: Found specification of procedure pad_operands [2023-11-21 21:01:06,374 INFO L138 BoogieDeclarations]: Found implementation of procedure pad_operands [2023-11-21 21:01:06,374 INFO L130 BoogieDeclarations]: Found specification of procedure avc_tuner_set_pids [2023-11-21 21:01:06,374 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_tuner_set_pids [2023-11-21 21:01:06,374 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_ca_io_poll [2023-11-21 21:01:06,375 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_ca_io_poll [2023-11-21 21:01:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2023-11-21 21:01:06,375 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2023-11-21 21:01:06,375 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_generic_release [2023-11-21 21:01:06,376 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_generic_release [2023-11-21 21:01:06,376 INFO L130 BoogieDeclarations]: Found specification of procedure clear_operands [2023-11-21 21:01:06,376 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_operands [2023-11-21 21:01:06,376 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-21 21:01:06,376 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-21 21:01:06,377 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_generic_open [2023-11-21 21:01:06,377 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_generic_open [2023-11-21 21:01:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:01:06,378 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-21 21:01:06,379 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-21 21:01:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure avc_write [2023-11-21 21:01:06,380 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_write [2023-11-21 21:01:06,380 INFO L130 BoogieDeclarations]: Found specification of procedure get_opcr [2023-11-21 21:01:06,381 INFO L138 BoogieDeclarations]: Found implementation of procedure get_opcr [2023-11-21 21:01:06,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 21:01:06,381 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-21 21:01:06,381 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-21 21:01:06,381 INFO L130 BoogieDeclarations]: Found specification of procedure collect_channels [2023-11-21 21:01:06,383 INFO L138 BoogieDeclarations]: Found implementation of procedure collect_channels [2023-11-21 21:01:06,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:01:06,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 21:01:06,384 INFO L130 BoogieDeclarations]: Found specification of procedure fw_iso_context_destroy [2023-11-21 21:01:06,384 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_iso_context_destroy [2023-11-21 21:01:06,384 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_unregister_rc [2023-11-21 21:01:06,384 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_unregister_rc [2023-11-21 21:01:06,385 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 21:01:06,385 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 21:01:06,385 INFO L130 BoogieDeclarations]: Found specification of procedure avc_tuner_status [2023-11-21 21:01:06,385 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_tuner_status [2023-11-21 21:01:06,385 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-21 21:01:06,385 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-21 21:01:06,386 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-21 21:01:06,386 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-21 21:01:06,387 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-21 21:01:06,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-21 21:01:06,387 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-21 21:01:06,387 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-21 21:01:06,387 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-21 21:01:06,388 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-21 21:01:06,388 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-21 21:01:06,388 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-21 21:01:06,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_avc_mutex_of_firedtv [2023-11-21 21:01:06,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_avc_mutex_of_firedtv [2023-11-21 21:01:06,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 21:01:06,389 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-21 21:01:06,389 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-21 21:01:06,389 INFO L130 BoogieDeclarations]: Found specification of procedure node_remove [2023-11-21 21:01:06,389 INFO L138 BoogieDeclarations]: Found implementation of procedure node_remove [2023-11-21 21:01:06,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 21:01:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-21 21:01:06,390 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-21 21:01:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure fdtv_dvb_unregister [2023-11-21 21:01:06,390 INFO L138 BoogieDeclarations]: Found implementation of procedure fdtv_dvb_unregister [2023-11-21 21:01:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure add_pid_filter [2023-11-21 21:01:06,391 INFO L138 BoogieDeclarations]: Found implementation of procedure add_pid_filter [2023-11-21 21:01:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 21:01:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure is_register_rc [2023-11-21 21:01:06,392 INFO L138 BoogieDeclarations]: Found implementation of procedure is_register_rc [2023-11-21 21:01:06,392 INFO L130 BoogieDeclarations]: Found specification of procedure dealloc_channel [2023-11-21 21:01:06,393 INFO L138 BoogieDeclarations]: Found implementation of procedure dealloc_channel [2023-11-21 21:01:06,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 21:01:06,393 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 21:01:06,393 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 21:01:06,393 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 21:01:06,394 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2023-11-21 21:01:06,395 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2023-11-21 21:01:06,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 21:01:06,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_avc_mutex_of_firedtv [2023-11-21 21:01:06,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_avc_mutex_of_firedtv [2023-11-21 21:01:06,395 INFO L130 BoogieDeclarations]: Found specification of procedure debug_fcp [2023-11-21 21:01:06,395 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_fcp [2023-11-21 21:01:06,396 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-21 21:01:06,396 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-21 21:01:06,396 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-21 21:01:06,396 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-21 21:01:06,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 21:01:06,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 21:01:06,397 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_net_release [2023-11-21 21:01:06,397 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_net_release [2023-11-21 21:01:06,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 21:01:06,398 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:01:06,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 21:01:06,398 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-21 21:01:06,399 INFO L130 BoogieDeclarations]: Found specification of procedure set_opcr [2023-11-21 21:01:06,399 INFO L138 BoogieDeclarations]: Found implementation of procedure set_opcr [2023-11-21 21:01:06,399 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-21 21:01:06,399 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-21 21:01:06,400 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-21 21:01:06,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-21 21:01:06,400 INFO L130 BoogieDeclarations]: Found specification of procedure fw_iso_buffer_destroy [2023-11-21 21:01:06,400 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_iso_buffer_destroy [2023-11-21 21:01:06,400 INFO L130 BoogieDeclarations]: Found specification of procedure node_probe [2023-11-21 21:01:06,401 INFO L138 BoogieDeclarations]: Found implementation of procedure node_probe [2023-11-21 21:01:06,401 INFO L130 BoogieDeclarations]: Found specification of procedure get_ca_object_pos [2023-11-21 21:01:06,402 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ca_object_pos [2023-11-21 21:01:06,406 INFO L130 BoogieDeclarations]: Found specification of procedure node_update [2023-11-21 21:01:06,408 INFO L138 BoogieDeclarations]: Found implementation of procedure node_update [2023-11-21 21:01:06,408 INFO L130 BoogieDeclarations]: Found specification of procedure avc_register_remote_control [2023-11-21 21:01:06,408 INFO L138 BoogieDeclarations]: Found implementation of procedure avc_register_remote_control [2023-11-21 21:01:06,409 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2023-11-21 21:01:06,409 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2023-11-21 21:01:06,410 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-21 21:01:06,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-21 21:01:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure device_of [2023-11-21 21:01:06,416 INFO L138 BoogieDeclarations]: Found implementation of procedure device_of [2023-11-21 21:01:06,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_demux_mutex_of_firedtv [2023-11-21 21:01:06,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_demux_mutex_of_firedtv [2023-11-21 21:01:06,416 INFO L130 BoogieDeclarations]: Found specification of procedure fw_core_remove_address_handler [2023-11-21 21:01:06,417 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_core_remove_address_handler [2023-11-21 21:01:06,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 21:01:06,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:01:06,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:01:07,256 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:01:07,260 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:01:19,075 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:01:24,039 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:01:24,039 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 21:01:24,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:01:24 BoogieIcfgContainer [2023-11-21 21:01:24,042 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:01:24,046 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:01:24,046 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:01:24,051 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:01:24,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:01:00" (1/3) ... [2023-11-21 21:01:24,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731e69a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:01:24, skipping insertion in model container [2023-11-21 21:01:24,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:04" (2/3) ... [2023-11-21 21:01:24,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731e69a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:01:24, skipping insertion in model container [2023-11-21 21:01:24,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:01:24" (3/3) ... [2023-11-21 21:01:24,057 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--firewire--firedtv.ko-main.cil.out.i [2023-11-21 21:01:24,081 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:01:24,081 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 21:01:24,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:01:24,200 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;@6ad59768, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:01:24,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 21:01:24,213 INFO L276 IsEmpty]: Start isEmpty. Operand has 941 states, 592 states have (on average 1.3733108108108107) internal successors, (813), 615 states have internal predecessors, (813), 279 states have call successors, (279), 68 states have call predecessors, (279), 68 states have return successors, (279), 279 states have call predecessors, (279), 279 states have call successors, (279) [2023-11-21 21:01:24,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 21:01:24,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:01:24,229 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:01:24,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:01:24,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:24,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1287400627, now seen corresponding path program 1 times [2023-11-21 21:01:24,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:24,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942075014] [2023-11-21 21:01:24,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:24,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:01:24,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:01:24,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:01:24,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942075014] [2023-11-21 21:01:24,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942075014] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:01:24,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:01:24,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:01:24,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285090386] [2023-11-21 21:01:24,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:01:24,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:01:24,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:01:24,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:01:24,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:01:24,953 INFO L87 Difference]: Start difference. First operand has 941 states, 592 states have (on average 1.3733108108108107) internal successors, (813), 615 states have internal predecessors, (813), 279 states have call successors, (279), 68 states have call predecessors, (279), 68 states have return successors, (279), 279 states have call predecessors, (279), 279 states have call successors, (279) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:01:27,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:30,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:32,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:34,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:37,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:42,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:44,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:46,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:48,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:50,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:52,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:01:54,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []