/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 06:52:18,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 06:52:18,296 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-01 06:52:18,303 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 06:52:18,307 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 06:52:18,334 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 06:52:18,335 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 06:52:18,335 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 06:52:18,336 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 06:52:18,337 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 06:52:18,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 06:52:18,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 06:52:18,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 06:52:18,338 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 06:52:18,339 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 06:52:18,339 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 06:52:18,340 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 06:52:18,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 06:52:18,340 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 06:52:18,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 06:52:18,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 06:52:18,343 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 06:52:18,344 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 06:52:18,344 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 06:52:18,344 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 06:52:18,345 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 06:52:18,345 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 06:52:18,346 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 06:52:18,346 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 06:52:18,346 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 06:52:18,347 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 06:52:18,347 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 06:52:18,348 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 06:52:18,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 06:52:18,349 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 06:52:18,349 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 06:52:18,349 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:18,350 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 06:52:18,350 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 06:52:18,350 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 06:52:18,351 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 06:52:18,351 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 06:52:18,351 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:18,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 06:52:18,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 06:52:18,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 06:52:18,798 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 06:52:18,798 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 06:52:18,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2024-11-01 06:52:20,496 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 06:52:20,942 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 06:52:20,943 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2024-11-01 06:52:20,985 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5568208/7bf6c26afb664c9697a5e49d1ea8fdcd/FLAG75e8887df [2024-11-01 06:52:21,010 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e5568208/7bf6c26afb664c9697a5e49d1ea8fdcd [2024-11-01 06:52:21,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 06:52:21,017 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 06:52:21,020 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 06:52:21,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 06:52:21,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 06:52:21,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 06:52:21" (1/1) ... [2024-11-01 06:52:21,029 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdb55e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:52:21, skipping insertion in model container [2024-11-01 06:52:21,029 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 06:52:21" (1/1) ... [2024-11-01 06:52:21,137 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 06:52:22,146 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,154 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,160 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,164 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,178 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,185 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,187 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,189 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,190 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,191 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,193 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,194 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,201 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,220 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,221 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,221 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,222 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,222 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,223 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,230 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,231 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,243 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,244 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,258 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,260 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,260 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,263 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,264 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,267 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,272 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,275 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,277 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,278 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,278 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,279 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,280 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,281 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,283 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,289 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,292 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,317 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,318 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,325 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,325 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,326 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,342 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i[121503,121516] [2024-11-01 06:52:22,363 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,381 WARN L1053 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-01 06:52:22,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 06:52:22,416 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 06:52:22,546 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)); [3095-3096] [2024-11-01 06:52:22,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (63), "i" (12UL)); [3374-3375] [2024-11-01 06:52:22,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (65), "i" (12UL)); [3382-3383] [2024-11-01 06:52:22,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (66), "i" (12UL)); [3390-3391] [2024-11-01 06:52:22,646 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/andrianov/commit-tester-work/task-014--linux-stable--dir/work/current--X--drivers/block/virtio_blk.ko--X--defaultlinux-stable-39a1d13-1--X--101_1a--X--cpachecker/linux-stable-39a1d13-1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/101_1a/drivers/block/virtio_blk.c"), "i" (123), "i" (12UL)); [3605-3606] [2024-11-01 06:52:22,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/andrianov/commit-tester-work/task-014--linux-stable--dir/work/current--X--drivers/block/virtio_blk.ko--X--defaultlinux-stable-39a1d13-1--X--101_1a--X--cpachecker/linux-stable-39a1d13-1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/101_1a/drivers/block/virtio_blk.c"), "i" (177), "i" (12UL)); [3680-3681] [2024-11-01 06:52:22,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/andrianov/commit-tester-work/task-014--linux-stable--dir/work/current--X--drivers/block/virtio_blk.ko--X--defaultlinux-stable-39a1d13-1--X--101_1a--X--cpachecker/linux-stable-39a1d13-1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/101_1a/drivers/block/virtio_blk.c"), "i" (467), "i" (12UL)); [4002-4003] [2024-11-01 06:52:22,927 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i[121503,121516] [2024-11-01 06:52:22,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 06:52:23,014 INFO L204 MainTranslator]: Completed translation [2024-11-01 06:52:23,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:52:23 WrapperNode [2024-11-01 06:52:23,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 06:52:23,016 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 06:52:23,017 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 06:52:23,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 06:52:23,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:52:23" (1/1) ... [2024-11-01 06:52:23,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:52:23" (1/1) ... [2024-11-01 06:52:23,243 INFO L138 Inliner]: procedures = 151, calls = 525, calls flagged for inlining = 83, calls inlined = 83, statements flattened = 1673 [2024-11-01 06:52:23,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 06:52:23,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 06:52:23,245 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 06:52:23,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 06:52:23,259 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:52:23" (1/1) ... [2024-11-01 06:52:23,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:52:23" (1/1) ... [2024-11-01 06:52:23,285 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:52:23" (1/1) ... [2024-11-01 06:52:23,573 INFO L175 MemorySlicer]: Split 263 memory accesses to 10 slices as follows [2, 1, 8, 8, 192, 25, 1, 1, 21, 4]. 73 percent of accesses are in the largest equivalence class. The 31 initializations are split as follows [2, 0, 8, 8, 13, 0, 0, 0, 0, 0]. The 91 writes are split as follows [0, 1, 0, 0, 63, 3, 0, 1, 21, 2]. [2024-11-01 06:52:23,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:52:23" (1/1) ... [2024-11-01 06:52:23,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:52:23" (1/1) ... [2024-11-01 06:52:23,658 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:52:23" (1/1) ... [2024-11-01 06:52:23,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:52:23" (1/1) ... [2024-11-01 06:52:23,703 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:52:23" (1/1) ... [2024-11-01 06:52:23,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:52:23" (1/1) ... [2024-11-01 06:52:23,743 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 06:52:23,744 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 06:52:23,744 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 06:52:23,744 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 06:52:23,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:52:23" (1/1) ... [2024-11-01 06:52:23,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 06:52:23,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 06:52:23,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-01 06:52:23,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-01 06:52:23,827 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2024-11-01 06:52:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2024-11-01 06:52:23,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-01 06:52:23,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-01 06:52:23,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-01 06:52:23,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-01 06:52:23,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-01 06:52:23,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-01 06:52:23,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-11-01 06:52:23,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2024-11-01 06:52:23,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2024-11-01 06:52:23,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2024-11-01 06:52:23,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-01 06:52:23,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-01 06:52:23,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-01 06:52:23,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-01 06:52:23,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-01 06:52:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#5 [2024-11-01 06:52:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#6 [2024-11-01 06:52:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#7 [2024-11-01 06:52:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#8 [2024-11-01 06:52:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#9 [2024-11-01 06:52:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-01 06:52:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-01 06:52:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-01 06:52:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-01 06:52:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-01 06:52:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-01 06:52:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-01 06:52:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-01 06:52:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-01 06:52:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-01 06:52:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2024-11-01 06:52:23,832 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2024-11-01 06:52:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-01 06:52:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-01 06:52:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-01 06:52:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-01 06:52:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-01 06:52:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-11-01 06:52:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2024-11-01 06:52:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#7 [2024-11-01 06:52:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#8 [2024-11-01 06:52:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#9 [2024-11-01 06:52:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-01 06:52:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-01 06:52:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-01 06:52:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-01 06:52:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-01 06:52:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-01 06:52:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-01 06:52:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-01 06:52:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-01 06:52:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-01 06:52:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-01 06:52:23,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-01 06:52:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-01 06:52:23,836 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-01 06:52:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2024-11-01 06:52:23,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2024-11-01 06:52:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2024-11-01 06:52:23,836 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2024-11-01 06:52:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-01 06:52:23,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-01 06:52:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2024-11-01 06:52:23,837 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2024-11-01 06:52:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2024-11-01 06:52:23,837 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2024-11-01 06:52:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-01 06:52:23,839 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-01 06:52:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-01 06:52:23,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-01 06:52:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-01 06:52:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-01 06:52:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-01 06:52:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-01 06:52:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-01 06:52:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-01 06:52:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#6 [2024-11-01 06:52:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#7 [2024-11-01 06:52:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#8 [2024-11-01 06:52:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#9 [2024-11-01 06:52:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-01 06:52:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-01 06:52:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2024-11-01 06:52:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2024-11-01 06:52:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#4 [2024-11-01 06:52:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#5 [2024-11-01 06:52:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#6 [2024-11-01 06:52:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#7 [2024-11-01 06:52:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#8 [2024-11-01 06:52:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#9 [2024-11-01 06:52:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-01 06:52:23,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-01 06:52:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2024-11-01 06:52:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2024-11-01 06:52:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-01 06:52:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-01 06:52:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-01 06:52:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-01 06:52:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-01 06:52:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-01 06:52:23,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-01 06:52:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-01 06:52:23,843 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-01 06:52:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 06:52:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2024-11-01 06:52:23,843 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2024-11-01 06:52:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-01 06:52:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-01 06:52:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-01 06:52:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-01 06:52:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-01 06:52:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-01 06:52:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-01 06:52:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-01 06:52:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-01 06:52:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-01 06:52:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-01 06:52:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-01 06:52:23,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-01 06:52:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2024-11-01 06:52:23,846 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2024-11-01 06:52:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2024-11-01 06:52:23,846 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2024-11-01 06:52:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-01 06:52:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-01 06:52:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-01 06:52:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-01 06:52:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-01 06:52:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-01 06:52:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-01 06:52:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-01 06:52:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-01 06:52:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-01 06:52:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2024-11-01 06:52:23,847 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2024-11-01 06:52:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-01 06:52:23,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-01 06:52:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-01 06:52:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-01 06:52:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-01 06:52:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2024-11-01 06:52:23,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2024-11-01 06:52:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#5 [2024-11-01 06:52:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#6 [2024-11-01 06:52:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#7 [2024-11-01 06:52:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#8 [2024-11-01 06:52:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#9 [2024-11-01 06:52:23,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-01 06:52:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-01 06:52:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-01 06:52:23,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-01 06:52:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-01 06:52:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-01 06:52:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-01 06:52:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2024-11-01 06:52:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2024-11-01 06:52:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2024-11-01 06:52:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-01 06:52:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-01 06:52:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-01 06:52:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-01 06:52:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-01 06:52:23,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-11-01 06:52:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2024-11-01 06:52:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#7 [2024-11-01 06:52:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#8 [2024-11-01 06:52:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#9 [2024-11-01 06:52:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-01 06:52:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-01 06:52:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-01 06:52:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-01 06:52:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-01 06:52:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-01 06:52:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-01 06:52:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-01 06:52:23,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-01 06:52:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-01 06:52:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-01 06:52:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 06:52:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-01 06:52:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-01 06:52:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-01 06:52:23,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-01 06:52:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-01 06:52:23,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-01 06:52:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-01 06:52:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-01 06:52:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-01 06:52:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-01 06:52:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-01 06:52:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-01 06:52:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-01 06:52:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-01 06:52:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-01 06:52:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-01 06:52:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-01 06:52:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-11-01 06:52:23,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-11-01 06:52:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2024-11-01 06:52:23,857 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2024-11-01 06:52:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2024-11-01 06:52:23,857 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2024-11-01 06:52:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 06:52:23,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 06:52:23,857 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-01 06:52:23,857 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-01 06:52:24,431 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 06:52:24,435 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 06:52:24,537 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-01 06:52:32,856 INFO L? ?]: Removed 971 outVars from TransFormulas that were not future-live. [2024-11-01 06:52:32,856 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 06:52:32,893 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 06:52:32,893 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-01 06:52:32,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 06:52:32 BoogieIcfgContainer [2024-11-01 06:52:32,894 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 06:52:32,897 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 06:52:32,897 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 06:52:32,901 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 06:52:32,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 06:52:21" (1/3) ... [2024-11-01 06:52:32,902 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b10c447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 06:52:32, skipping insertion in model container [2024-11-01 06:52:32,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 06:52:23" (2/3) ... [2024-11-01 06:52:32,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b10c447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 06:52:32, skipping insertion in model container [2024-11-01 06:52:32,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 06:52:32" (3/3) ... [2024-11-01 06:52:32,906 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-39a1d13-1-101_1a-drivers--block--virtio_blk.ko-entry_point_ldv-val-v0.8.cil.out.i [2024-11-01 06:52:32,926 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 06:52:32,927 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 06:52:33,023 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 06:52:33,034 INFO L333 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, 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;@22bc7c8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 06:52:33,035 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 06:52:33,044 INFO L276 IsEmpty]: Start isEmpty. Operand has 457 states, 346 states have (on average 1.300578034682081) internal successors, (450), 361 states have internal predecessors, (450), 84 states have call successors, (84), 26 states have call predecessors, (84), 25 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-01 06:52:33,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-01 06:52:33,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:52:33,061 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:52:33,061 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:52:33,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:52:33,069 INFO L85 PathProgramCache]: Analyzing trace with hash -116747867, now seen corresponding path program 1 times [2024-11-01 06:52:33,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:52:33,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241060480] [2024-11-01 06:52:33,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:52:33,082 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:33,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:52:33,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:52:33,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-01 06:52:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:52:33,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-01 06:52:33,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:52:33,985 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-01 06:52:33,985 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:52:34,134 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-01 06:52:34,135 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:52:34,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241060480] [2024-11-01 06:52:34,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [241060480] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:52:34,136 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:52:34,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-01 06:52:34,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521169581] [2024-11-01 06:52:34,139 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:52:34,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-01 06:52:34,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:52:34,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-01 06:52:34,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-01 06:52:34,174 INFO L87 Difference]: Start difference. First operand has 457 states, 346 states have (on average 1.300578034682081) internal successors, (450), 361 states have internal predecessors, (450), 84 states have call successors, (84), 26 states have call predecessors, (84), 25 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-01 06:52:34,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:52:34,274 INFO L93 Difference]: Finished difference Result 909 states and 1241 transitions. [2024-11-01 06:52:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-01 06:52:34,277 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 46 [2024-11-01 06:52:34,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:52:34,296 INFO L225 Difference]: With dead ends: 909 [2024-11-01 06:52:34,296 INFO L226 Difference]: Without dead ends: 439 [2024-11-01 06:52:34,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-01 06:52:34,307 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 06:52:34,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 06:52:34,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-01 06:52:34,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-11-01 06:52:34,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 335 states have (on average 1.2686567164179106) internal successors, (425), 343 states have internal predecessors, (425), 79 states have call successors, (79), 25 states have call predecessors, (79), 24 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-01 06:52:34,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 581 transitions. [2024-11-01 06:52:34,402 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 581 transitions. Word has length 46 [2024-11-01 06:52:34,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:52:34,403 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 581 transitions. [2024-11-01 06:52:34,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-01 06:52:34,403 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 581 transitions. [2024-11-01 06:52:34,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-01 06:52:34,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:52:34,406 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:52:34,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-01 06:52:34,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:34,607 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:52:34,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:52:34,608 INFO L85 PathProgramCache]: Analyzing trace with hash -960753369, now seen corresponding path program 1 times [2024-11-01 06:52:34,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:52:34,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [720350754] [2024-11-01 06:52:34,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:52:34,609 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:34,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:52:34,611 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:52:34,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-01 06:52:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:52:35,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 06:52:35,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:52:36,296 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-01 06:52:36,297 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:52:36,933 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-01 06:52:36,933 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:52:36,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [720350754] [2024-11-01 06:52:36,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [720350754] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:52:36,934 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:52:36,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-01 06:52:36,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723040562] [2024-11-01 06:52:36,935 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:52:36,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 06:52:36,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:52:36,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 06:52:36,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:52:36,940 INFO L87 Difference]: Start difference. First operand 439 states and 581 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-01 06:52:37,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:52:37,093 INFO L93 Difference]: Finished difference Result 856 states and 1134 transitions. [2024-11-01 06:52:37,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 06:52:37,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 46 [2024-11-01 06:52:37,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:52:37,108 INFO L225 Difference]: With dead ends: 856 [2024-11-01 06:52:37,109 INFO L226 Difference]: Without dead ends: 847 [2024-11-01 06:52:37,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:52:37,112 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 536 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-01 06:52:37,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 1143 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-01 06:52:37,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-11-01 06:52:37,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 847. [2024-11-01 06:52:37,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 648 states have (on average 1.2700617283950617) internal successors, (823), 663 states have internal predecessors, (823), 151 states have call successors, (151), 48 states have call predecessors, (151), 47 states have return successors, (149), 149 states have call predecessors, (149), 149 states have call successors, (149) [2024-11-01 06:52:37,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1123 transitions. [2024-11-01 06:52:37,202 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1123 transitions. Word has length 46 [2024-11-01 06:52:37,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:52:37,203 INFO L471 AbstractCegarLoop]: Abstraction has 847 states and 1123 transitions. [2024-11-01 06:52:37,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-01 06:52:37,203 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1123 transitions. [2024-11-01 06:52:37,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-01 06:52:37,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:52:37,211 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:52:37,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-01 06:52:37,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:37,412 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:52:37,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:52:37,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1549071005, now seen corresponding path program 1 times [2024-11-01 06:52:37,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:52:37,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [122194702] [2024-11-01 06:52:37,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:52:37,413 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:37,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:52:37,416 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:52:37,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-01 06:52:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:52:38,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 06:52:38,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:52:38,351 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-01 06:52:38,351 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:52:38,981 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-01 06:52:38,981 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:52:38,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [122194702] [2024-11-01 06:52:38,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [122194702] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:52:38,981 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:52:38,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-01 06:52:38,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963077938] [2024-11-01 06:52:38,982 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:52:38,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 06:52:38,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:52:38,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 06:52:38,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:52:38,984 INFO L87 Difference]: Start difference. First operand 847 states and 1123 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-01 06:52:39,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:52:39,218 INFO L93 Difference]: Finished difference Result 2392 states and 3168 transitions. [2024-11-01 06:52:39,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 06:52:39,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 107 [2024-11-01 06:52:39,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:52:39,234 INFO L225 Difference]: With dead ends: 2392 [2024-11-01 06:52:39,234 INFO L226 Difference]: Without dead ends: 1559 [2024-11-01 06:52:39,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 06:52:39,243 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 488 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-01 06:52:39,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1147 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-01 06:52:39,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2024-11-01 06:52:39,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1551. [2024-11-01 06:52:39,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1184 states have (on average 1.271114864864865) internal successors, (1505), 1213 states have internal predecessors, (1505), 275 states have call successors, (275), 92 states have call predecessors, (275), 91 states have return successors, (273), 273 states have call predecessors, (273), 273 states have call successors, (273) [2024-11-01 06:52:39,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2053 transitions. [2024-11-01 06:52:39,369 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2053 transitions. Word has length 107 [2024-11-01 06:52:39,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:52:39,369 INFO L471 AbstractCegarLoop]: Abstraction has 1551 states and 2053 transitions. [2024-11-01 06:52:39,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-01 06:52:39,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2053 transitions. [2024-11-01 06:52:39,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-01 06:52:39,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:52:39,383 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:52:39,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-01 06:52:39,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:39,586 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:52:39,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:52:39,587 INFO L85 PathProgramCache]: Analyzing trace with hash -102768189, now seen corresponding path program 1 times [2024-11-01 06:52:39,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:52:39,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472738078] [2024-11-01 06:52:39,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:52:39,587 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:39,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:52:39,590 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:52:39,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-01 06:52:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:52:40,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-01 06:52:40,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:52:41,560 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-01 06:52:41,560 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:52:43,438 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-01 06:52:43,438 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:52:43,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472738078] [2024-11-01 06:52:43,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1472738078] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:52:43,439 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:52:43,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 5] imperfect sequences [] total 12 [2024-11-01 06:52:43,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163067413] [2024-11-01 06:52:43,439 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:52:43,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-01 06:52:43,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:52:43,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-01 06:52:43,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-01 06:52:43,442 INFO L87 Difference]: Start difference. First operand 1551 states and 2053 transitions. Second operand has 12 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 4 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-01 06:52:44,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:52:44,780 INFO L93 Difference]: Finished difference Result 3131 states and 4174 transitions. [2024-11-01 06:52:44,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-01 06:52:44,782 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 4 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) Word has length 153 [2024-11-01 06:52:44,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:52:44,799 INFO L225 Difference]: With dead ends: 3131 [2024-11-01 06:52:44,799 INFO L226 Difference]: Without dead ends: 1600 [2024-11-01 06:52:44,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-01 06:52:44,809 INFO L432 NwaCegarLoop]: 572 mSDtfsCounter, 22 mSDsluCounter, 5126 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 5698 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-01 06:52:44,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 5698 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-01 06:52:44,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2024-11-01 06:52:44,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1553. [2024-11-01 06:52:44,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1553 states, 1185 states have (on average 1.270886075949367) internal successors, (1506), 1215 states have internal predecessors, (1506), 275 states have call successors, (275), 92 states have call predecessors, (275), 92 states have return successors, (281), 273 states have call predecessors, (281), 273 states have call successors, (281) [2024-11-01 06:52:44,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1553 states to 1553 states and 2062 transitions. [2024-11-01 06:52:44,909 INFO L78 Accepts]: Start accepts. Automaton has 1553 states and 2062 transitions. Word has length 153 [2024-11-01 06:52:44,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:52:44,909 INFO L471 AbstractCegarLoop]: Abstraction has 1553 states and 2062 transitions. [2024-11-01 06:52:44,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.0) internal successors, (100), 9 states have internal predecessors, (100), 4 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) [2024-11-01 06:52:44,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1553 states and 2062 transitions. [2024-11-01 06:52:44,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-01 06:52:44,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:52:44,917 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:52:44,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-01 06:52:45,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:45,118 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:52:45,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:52:45,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1674927712, now seen corresponding path program 1 times [2024-11-01 06:52:45,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:52:45,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [726966173] [2024-11-01 06:52:45,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:52:45,119 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:45,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:52:45,123 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:52:45,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-01 06:52:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:52:45,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-01 06:52:45,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:52:46,206 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-01 06:52:46,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:52:47,426 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-01 06:52:47,426 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:52:47,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [726966173] [2024-11-01 06:52:47,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [726966173] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-01 06:52:47,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-01 06:52:47,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-01 06:52:47,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697418002] [2024-11-01 06:52:47,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-01 06:52:47,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-01 06:52:47,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:52:47,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-01 06:52:47,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-01 06:52:47,429 INFO L87 Difference]: Start difference. First operand 1553 states and 2062 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-01 06:52:47,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:52:47,617 INFO L93 Difference]: Finished difference Result 3094 states and 4112 transitions. [2024-11-01 06:52:47,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 06:52:47,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2024-11-01 06:52:47,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:52:47,630 INFO L225 Difference]: With dead ends: 3094 [2024-11-01 06:52:47,631 INFO L226 Difference]: Without dead ends: 1554 [2024-11-01 06:52:47,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-01 06:52:47,640 INFO L432 NwaCegarLoop]: 579 mSDtfsCounter, 0 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-01 06:52:47,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1731 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-01 06:52:47,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2024-11-01 06:52:47,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1554. [2024-11-01 06:52:47,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1554 states, 1186 states have (on average 1.2706576728499157) internal successors, (1507), 1216 states have internal predecessors, (1507), 275 states have call successors, (275), 92 states have call predecessors, (275), 92 states have return successors, (281), 273 states have call predecessors, (281), 273 states have call successors, (281) [2024-11-01 06:52:47,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2063 transitions. [2024-11-01 06:52:47,753 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2063 transitions. Word has length 173 [2024-11-01 06:52:47,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:52:47,754 INFO L471 AbstractCegarLoop]: Abstraction has 1554 states and 2063 transitions. [2024-11-01 06:52:47,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-01 06:52:47,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2063 transitions. [2024-11-01 06:52:47,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-01 06:52:47,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:52:47,761 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:52:47,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-01 06:52:47,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:47,962 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:52:47,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:52:47,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1297387526, now seen corresponding path program 1 times [2024-11-01 06:52:47,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:52:47,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1998535906] [2024-11-01 06:52:47,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:52:47,964 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:47,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:52:47,966 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:52:47,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-01 06:52:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:52:49,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-01 06:52:49,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:52:49,641 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 44 proven. 1 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-01 06:52:49,642 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:52:50,960 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-01 06:52:50,960 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:52:50,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1998535906] [2024-11-01 06:52:50,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1998535906] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 06:52:50,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 06:52:50,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-01 06:52:50,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78457942] [2024-11-01 06:52:50,961 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 06:52:50,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-01 06:52:50,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:52:50,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-01 06:52:50,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-01 06:52:50,963 INFO L87 Difference]: Start difference. First operand 1554 states and 2063 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-01 06:52:51,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:52:51,705 INFO L93 Difference]: Finished difference Result 3105 states and 4127 transitions. [2024-11-01 06:52:51,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-01 06:52:51,707 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 175 [2024-11-01 06:52:51,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:52:51,720 INFO L225 Difference]: With dead ends: 3105 [2024-11-01 06:52:51,720 INFO L226 Difference]: Without dead ends: 1564 [2024-11-01 06:52:51,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-01 06:52:51,729 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 5 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2304 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-01 06:52:51,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2304 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-01 06:52:51,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2024-11-01 06:52:51,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1564. [2024-11-01 06:52:51,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1564 states, 1195 states have (on average 1.2711297071129708) internal successors, (1519), 1225 states have internal predecessors, (1519), 275 states have call successors, (275), 93 states have call predecessors, (275), 93 states have return successors, (281), 273 states have call predecessors, (281), 273 states have call successors, (281) [2024-11-01 06:52:51,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1564 states to 1564 states and 2075 transitions. [2024-11-01 06:52:51,794 INFO L78 Accepts]: Start accepts. Automaton has 1564 states and 2075 transitions. Word has length 175 [2024-11-01 06:52:51,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:52:51,794 INFO L471 AbstractCegarLoop]: Abstraction has 1564 states and 2075 transitions. [2024-11-01 06:52:51,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 8 states have internal predecessors, (119), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-01 06:52:51,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1564 states and 2075 transitions. [2024-11-01 06:52:51,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-01 06:52:51,801 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:52:51,801 INFO L215 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:52:51,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-01 06:52:52,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:52,002 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:52:52,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:52:52,003 INFO L85 PathProgramCache]: Analyzing trace with hash -2029853760, now seen corresponding path program 2 times [2024-11-01 06:52:52,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:52:52,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332403521] [2024-11-01 06:52:52,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:52:52,003 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:52,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:52:52,005 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:52:52,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-01 06:52:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:52:53,304 INFO L255 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-01 06:52:53,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:52:54,019 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 55 proven. 10 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-01 06:52:54,019 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:52:56,039 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-01 06:52:56,040 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:52:56,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332403521] [2024-11-01 06:52:56,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [332403521] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 06:52:56,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 06:52:56,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-01 06:52:56,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719413950] [2024-11-01 06:52:56,040 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 06:52:56,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-01 06:52:56,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:52:56,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-01 06:52:56,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-01 06:52:56,042 INFO L87 Difference]: Start difference. First operand 1564 states and 2075 transitions. Second operand has 14 states, 14 states have (on average 8.928571428571429) internal successors, (125), 14 states have internal predecessors, (125), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-01 06:52:58,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:52:58,103 INFO L93 Difference]: Finished difference Result 3115 states and 4140 transitions. [2024-11-01 06:52:58,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-01 06:52:58,105 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.928571428571429) internal successors, (125), 14 states have internal predecessors, (125), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 179 [2024-11-01 06:52:58,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:52:58,118 INFO L225 Difference]: With dead ends: 3115 [2024-11-01 06:52:58,118 INFO L226 Difference]: Without dead ends: 1570 [2024-11-01 06:52:58,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 344 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2024-11-01 06:52:58,127 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 5 mSDsluCounter, 2877 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3455 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-01 06:52:58,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3455 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-01 06:52:58,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2024-11-01 06:52:58,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1570. [2024-11-01 06:52:58,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1201 states have (on average 1.2706078268109908) internal successors, (1526), 1231 states have internal predecessors, (1526), 275 states have call successors, (275), 93 states have call predecessors, (275), 93 states have return successors, (281), 273 states have call predecessors, (281), 273 states have call successors, (281) [2024-11-01 06:52:58,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 2082 transitions. [2024-11-01 06:52:58,196 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 2082 transitions. Word has length 179 [2024-11-01 06:52:58,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:52:58,196 INFO L471 AbstractCegarLoop]: Abstraction has 1570 states and 2082 transitions. [2024-11-01 06:52:58,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.928571428571429) internal successors, (125), 14 states have internal predecessors, (125), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-01 06:52:58,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 2082 transitions. [2024-11-01 06:52:58,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-01 06:52:58,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:52:58,203 INFO L215 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:52:58,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-01 06:52:58,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:58,404 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:52:58,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:52:58,404 INFO L85 PathProgramCache]: Analyzing trace with hash 2067655040, now seen corresponding path program 3 times [2024-11-01 06:52:58,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:52:58,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1406801858] [2024-11-01 06:52:58,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:52:58,405 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:52:58,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:52:58,406 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:52:58,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-01 06:52:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:52:59,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-01 06:52:59,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:53:00,156 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-01 06:53:00,156 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:53:01,666 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-01 06:53:01,666 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:53:01,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1406801858] [2024-11-01 06:53:01,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1406801858] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 06:53:01,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 06:53:01,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-01 06:53:01,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971733161] [2024-11-01 06:53:01,667 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 06:53:01,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-01 06:53:01,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:53:01,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-01 06:53:01,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-01 06:53:01,669 INFO L87 Difference]: Start difference. First operand 1570 states and 2082 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-01 06:53:02,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:53:02,407 INFO L93 Difference]: Finished difference Result 3106 states and 4124 transitions. [2024-11-01 06:53:02,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-01 06:53:02,408 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 183 [2024-11-01 06:53:02,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:53:02,421 INFO L225 Difference]: With dead ends: 3106 [2024-11-01 06:53:02,422 INFO L226 Difference]: Without dead ends: 1570 [2024-11-01 06:53:02,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-01 06:53:02,430 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 5 mSDsluCounter, 2304 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2881 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-01 06:53:02,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2881 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-01 06:53:02,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2024-11-01 06:53:02,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1570. [2024-11-01 06:53:02,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1570 states, 1201 states have (on average 1.2672772689425478) internal successors, (1522), 1231 states have internal predecessors, (1522), 275 states have call successors, (275), 93 states have call predecessors, (275), 93 states have return successors, (281), 273 states have call predecessors, (281), 273 states have call successors, (281) [2024-11-01 06:53:02,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1570 states to 1570 states and 2078 transitions. [2024-11-01 06:53:02,501 INFO L78 Accepts]: Start accepts. Automaton has 1570 states and 2078 transitions. Word has length 183 [2024-11-01 06:53:02,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:53:02,501 INFO L471 AbstractCegarLoop]: Abstraction has 1570 states and 2078 transitions. [2024-11-01 06:53:02,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 2 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-01 06:53:02,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1570 states and 2078 transitions. [2024-11-01 06:53:02,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-01 06:53:02,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:53:02,506 INFO L215 NwaCegarLoop]: trace histogram [12, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:53:02,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-01 06:53:02,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:53:02,707 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:53:02,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:53:02,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1313947936, now seen corresponding path program 4 times [2024-11-01 06:53:02,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:53:02,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776699097] [2024-11-01 06:53:02,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:53:02,708 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:53:02,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:53:02,711 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:53:02,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-01 06:53:04,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 06:53:04,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-01 06:53:04,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 06:53:04,675 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-01 06:53:04,675 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 06:53:05,827 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-01 06:53:05,828 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 06:53:05,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776699097] [2024-11-01 06:53:05,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1776699097] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 06:53:05,828 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 06:53:05,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 06:53:05,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372659899] [2024-11-01 06:53:05,828 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 06:53:05,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 06:53:05,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 06:53:05,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 06:53:05,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 06:53:05,830 INFO L87 Difference]: Start difference. First operand 1570 states and 2078 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2024-11-01 06:53:09,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-01 06:53:13,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-01 06:53:14,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 06:53:14,200 INFO L93 Difference]: Finished difference Result 3123 states and 4142 transitions. [2024-11-01 06:53:14,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-01 06:53:14,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 185 [2024-11-01 06:53:14,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 06:53:14,215 INFO L225 Difference]: With dead ends: 3123 [2024-11-01 06:53:14,215 INFO L226 Difference]: Without dead ends: 1586 [2024-11-01 06:53:14,223 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 06:53:14,225 INFO L432 NwaCegarLoop]: 582 mSDtfsCounter, 11 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-01 06:53:14,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2893 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2024-11-01 06:53:14,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2024-11-01 06:53:14,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1561. [2024-11-01 06:53:14,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1192 states have (on average 1.2634228187919463) internal successors, (1506), 1222 states have internal predecessors, (1506), 275 states have call successors, (275), 93 states have call predecessors, (275), 93 states have return successors, (281), 273 states have call predecessors, (281), 273 states have call successors, (281) [2024-11-01 06:53:14,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2062 transitions. [2024-11-01 06:53:14,300 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2062 transitions. Word has length 185 [2024-11-01 06:53:14,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 06:53:14,301 INFO L471 AbstractCegarLoop]: Abstraction has 1561 states and 2062 transitions. [2024-11-01 06:53:14,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 4 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2024-11-01 06:53:14,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2062 transitions. [2024-11-01 06:53:14,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-01 06:53:14,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 06:53:14,308 INFO L215 NwaCegarLoop]: trace histogram [12, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 06:53:14,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2024-11-01 06:53:14,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:53:14,509 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 06:53:14,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 06:53:14,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1280871145, now seen corresponding path program 1 times [2024-11-01 06:53:14,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 06:53:14,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [364461239] [2024-11-01 06:53:14,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 06:53:14,510 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-01 06:53:14,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-01 06:53:14,513 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-01 06:53:14,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-01 06:53:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-01 06:53:27,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-01 06:53:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-01 06:53:39,688 INFO L130 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2024-11-01 06:53:39,688 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-01 06:53:39,690 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-01 06:53:39,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-01 06:53:39,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-01 06:53:39,895 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1] [2024-11-01 06:53:40,074 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-01 06:53:40,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.11 06:53:40 BoogieIcfgContainer [2024-11-01 06:53:40,086 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-01 06:53:40,087 INFO L158 Benchmark]: Toolchain (without parser) took 79070.46ms. Allocated memory was 194.0MB in the beginning and 486.5MB in the end (delta: 292.6MB). Free memory was 145.1MB in the beginning and 194.4MB in the end (delta: -49.3MB). Peak memory consumption was 244.8MB. Max. memory is 8.0GB. [2024-11-01 06:53:40,087 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 194.0MB. Free memory was 170.5MB in the beginning and 170.3MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 06:53:40,087 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1995.68ms. Allocated memory was 194.0MB in the beginning and 343.9MB in the end (delta: 149.9MB). Free memory was 145.1MB in the beginning and 295.6MB in the end (delta: -150.5MB). Peak memory consumption was 114.8MB. Max. memory is 8.0GB. [2024-11-01 06:53:40,087 INFO L158 Benchmark]: Boogie Procedure Inliner took 227.25ms. Allocated memory is still 343.9MB. Free memory was 295.1MB in the beginning and 284.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2024-11-01 06:53:40,087 INFO L158 Benchmark]: Boogie Preprocessor took 497.89ms. Allocated memory is still 343.9MB. Free memory was 284.6MB in the beginning and 267.7MB in the end (delta: 16.9MB). Peak memory consumption was 31.6MB. Max. memory is 8.0GB. [2024-11-01 06:53:40,087 INFO L158 Benchmark]: RCFGBuilder took 9149.71ms. Allocated memory is still 343.9MB. Free memory was 267.7MB in the beginning and 230.1MB in the end (delta: 37.6MB). Peak memory consumption was 77.4MB. Max. memory is 8.0GB. [2024-11-01 06:53:40,088 INFO L158 Benchmark]: TraceAbstraction took 67189.40ms. Allocated memory was 343.9MB in the beginning and 486.5MB in the end (delta: 142.6MB). Free memory was 229.6MB in the beginning and 194.4MB in the end (delta: 35.1MB). Peak memory consumption was 178.3MB. Max. memory is 8.0GB. [2024-11-01 06:53:40,093 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 194.0MB. Free memory was 170.5MB in the beginning and 170.3MB in the end (delta: 157.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1995.68ms. Allocated memory was 194.0MB in the beginning and 343.9MB in the end (delta: 149.9MB). Free memory was 145.1MB in the beginning and 295.6MB in the end (delta: -150.5MB). Peak memory consumption was 114.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 227.25ms. Allocated memory is still 343.9MB. Free memory was 295.1MB in the beginning and 284.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 497.89ms. Allocated memory is still 343.9MB. Free memory was 284.6MB in the beginning and 267.7MB in the end (delta: 16.9MB). Peak memory consumption was 31.6MB. Max. memory is 8.0GB. * RCFGBuilder took 9149.71ms. Allocated memory is still 343.9MB. Free memory was 267.7MB in the beginning and 230.1MB in the end (delta: 37.6MB). Peak memory consumption was 77.4MB. Max. memory is 8.0GB. * TraceAbstraction took 67189.40ms. Allocated memory was 343.9MB in the beginning and 486.5MB in the end (delta: 142.6MB). Free memory was 229.6MB in the beginning and 194.4MB in the end (delta: 35.1MB). Peak memory consumption was 178.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3095]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [3095-3096] - GenericResultAtLocation [Line: 3374]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (63), "i" (12UL)); [3374-3375] - GenericResultAtLocation [Line: 3382]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (65), "i" (12UL)); [3382-3383] - GenericResultAtLocation [Line: 3390]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (66), "i" (12UL)); [3390-3391] - GenericResultAtLocation [Line: 3605]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/andrianov/commit-tester-work/task-014--linux-stable--dir/work/current--X--drivers/block/virtio_blk.ko--X--defaultlinux-stable-39a1d13-1--X--101_1a--X--cpachecker/linux-stable-39a1d13-1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/101_1a/drivers/block/virtio_blk.c"), "i" (123), "i" (12UL)); [3605-3606] - GenericResultAtLocation [Line: 3680]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/andrianov/commit-tester-work/task-014--linux-stable--dir/work/current--X--drivers/block/virtio_blk.ko--X--defaultlinux-stable-39a1d13-1--X--101_1a--X--cpachecker/linux-stable-39a1d13-1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/101_1a/drivers/block/virtio_blk.c"), "i" (177), "i" (12UL)); [3680-3681] - GenericResultAtLocation [Line: 4002]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/ldvuser/andrianov/commit-tester-work/task-014--linux-stable--dir/work/current--X--drivers/block/virtio_blk.ko--X--defaultlinux-stable-39a1d13-1--X--101_1a--X--cpachecker/linux-stable-39a1d13-1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/101_1a/drivers/block/virtio_blk.c"), "i" (467), "i" (12UL)); [4002-4003] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 4236]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of large string literal at line 4024. Possible FailurePath: [L3355] int LDV_IN_INTERRUPT = 1; [L3356] struct block_device *virtblk_fops_group0 ; [L3357] int ldv_state_variable_2 ; [L3358] int ref_cnt ; [L3359] int ldv_state_variable_1 ; [L3360] struct virtio_device *virtio_blk_group0 ; [L3361] int ldv_state_variable_0 ; [L3492] static int major ; [L3493] static int index ; [L3818-L3819] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L3818-L3819] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L3818-L3819] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L3818-L3819] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L3818-L3819] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L3818-L3819] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L3818-L3819] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L3818-L3819] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L3818-L3819] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L3818-L3819] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L3818-L3819] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L3818-L3819] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L3818-L3819] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L3818-L3819] static struct block_device_operations const virtblk_fops = {0, 0, & virtblk_ioctl, 0, 0, 0, 0, 0, 0, & virtblk_getgeo, 0, & __this_module}; [L4018-L4019] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4018-L4019] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4018-L4019] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4018-L4019] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4018-L4019] static struct virtio_device_id const id_table[2U] = { {2U, 4294967295U}, {0U, 0U}}; [L4020-L4023] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4020-L4023] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4020-L4023] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4020-L4023] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4020-L4023] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4020-L4023] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4020-L4023] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4020-L4023] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4020-L4023] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4020-L4023] static unsigned int features[9U] = { 0U, 2U, 1U, 4U, 5U, 6U, 7U, 9U, 10U}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4024-L4025] static struct virtio_driver virtio_blk = {{"virtio_blk", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, (struct virtio_device_id const *)(& id_table), (unsigned int const *)(& features), 9U, & virtblk_probe, & virtblk_remove, 0}; [L4047] struct virtio_device_id const __mod_virtio_device_table ; [L4048] int ldv_retval_0 ; [L4049] int ldv_retval_1 ; [L4283] int ldv_blk_rq = 0; VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4072] unsigned long ldvarg1 ; [L4073] fmode_t ldvarg3 ; [L4074] struct hd_geometry *ldvarg0 ; [L4075] void *tmp ; [L4076] unsigned int ldvarg2 ; [L4077] int tmp___0 ; [L4078] int tmp___1 ; [L4079] int tmp___2 ; [L4080] int tmp___3 ; VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg1={-9223371968135299065:0}, ldvarg3={-4611686018427387902:0}, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4082] CALL, EXPR ldv_init_zalloc(16UL) VAL [LDV_IN_INTERRUPT=1, \old(size)=16, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3290] void *p ; [L3291] void *tmp ; [L3293] EXPR, FCALL calloc(1UL, size) VAL [LDV_IN_INTERRUPT=1, \old(size)=16, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, size=16, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3293] tmp = calloc(1UL, size) [L3294] p = tmp VAL [LDV_IN_INTERRUPT=1, \old(size)=16, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, p={2305843009213693952:0}, ref_cnt=0, size=16, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3295] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [LDV_IN_INTERRUPT=1, \old(cond)=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3249] COND FALSE !(!cond) VAL [LDV_IN_INTERRUPT=1, \old(cond)=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3295] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [LDV_IN_INTERRUPT=1, \old(size)=16, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, p={2305843009213693952:0}, ref_cnt=0, size=16, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3296] return (p); VAL [LDV_IN_INTERRUPT=1, \old(size)=16, \result={2305843009213693952:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, size=16, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4082] RET, EXPR ldv_init_zalloc(16UL) VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg1={-9223371968135299065:0}, ldvarg3={-4611686018427387902:0}, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4082] tmp = ldv_init_zalloc(16UL) [L4083] ldvarg0 = (struct hd_geometry *)tmp [L4084] FCALL ldv_initialize() [L4085] CALL ldv_memset((void *)(& ldvarg1), 0, 8UL) VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3301] void *tmp ; [L3303] EXPR, FCALL memset(s, c, n) [L3303] tmp = memset(s, c, n) [L3304] return (tmp); VAL [LDV_IN_INTERRUPT=1, \old(c)=0, \old(n)=8, \old(s)={-9223371968135299065:0}, \result={-9223371968135299065:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4085] RET ldv_memset((void *)(& ldvarg1), 0, 8UL) VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={2305843009213693952:0}, ldvarg1={-9223371968135299065:0}, ldvarg3={-4611686018427387902:0}, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4086] CALL ldv_memset((void *)(& ldvarg3), 0, 4UL) VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3301] void *tmp ; [L3303] EXPR, FCALL memset(s, c, n) [L3303] tmp = memset(s, c, n) [L3304] return (tmp); VAL [LDV_IN_INTERRUPT=1, \old(c)=0, \old(n)=4, \old(s)={-4611686018427387902:0}, \result={-4611686018427387902:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4086] RET ldv_memset((void *)(& ldvarg3), 0, 4UL) VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={2305843009213693952:0}, ldvarg1={-9223371968135299065:0}, ldvarg3={-4611686018427387902:0}, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4087] ldvarg2 = __VERIFIER_nondet_ulong () [L4088] ldv_state_variable_1 = 0 [L4089] ref_cnt = 0 [L4090] ldv_state_variable_0 = 1 [L4091] ldv_state_variable_2 = 0 VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={2305843009213693952:0}, ldvarg1={-9223371968135299065:0}, ldvarg2=1447184708, ldvarg3={-4611686018427387902:0}, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4093] tmp___0 = __VERIFIER_nondet_int() [L4095] case 0: VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={2305843009213693952:0}, ldvarg1={-9223371968135299065:0}, ldvarg2=1447184708, ldvarg3={-4611686018427387902:0}, major=0, ref_cnt=0, tmp___0=1, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4095] case 0: [L4125] case 1: [L4127] tmp___2 = __VERIFIER_nondet_int() [L4129] case 0: VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={2305843009213693952:0}, ldvarg1={-9223371968135299065:0}, ldvarg2=1447184708, ldvarg3={-4611686018427387902:0}, major=0, ref_cnt=0, tmp___0=1, tmp___2=1, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4125] case 1: [L4137] case 1: VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={2305843009213693952:0}, ldvarg1={-9223371968135299065:0}, ldvarg2=1447184708, ldvarg3={-4611686018427387902:0}, major=0, ref_cnt=0, tmp___0=1, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4125] case 1: [L4139] CALL, EXPR init() [L4028] int tmp ; [L4030] CALL, EXPR register_blkdev(0U, "virtblk") [L4472] return __VERIFIER_nondet_int(); [L4030] RET, EXPR register_blkdev(0U, "virtblk") [L4030] major = register_blkdev(0U, "virtblk") [L4031] COND FALSE !(major < 0) [L4035] CALL, EXPR register_virtio_driver(& virtio_blk) [L4476] return __VERIFIER_nondet_int(); [L4035] RET, EXPR register_virtio_driver(& virtio_blk) [L4035] tmp = register_virtio_driver(& virtio_blk) [L4036] return (tmp); VAL [LDV_IN_INTERRUPT=1, \result=0, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4139] RET, EXPR init() [L4139] ldv_retval_1 = init() [L4125] case 1: [L4141] ldv_state_variable_0 = 3 [L4142] ldv_state_variable_2 = 1 [L4143] CALL ldv_initialize_block_device_operations_2() [L4063] void *tmp ; VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4065] CALL, EXPR ldv_init_zalloc(464UL) VAL [LDV_IN_INTERRUPT=1, \old(size)=464, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3290] void *p ; [L3291] void *tmp ; [L3293] EXPR, FCALL calloc(1UL, size) VAL [LDV_IN_INTERRUPT=1, \old(size)=464, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, ref_cnt=0, size=464, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3293] tmp = calloc(1UL, size) [L3294] p = tmp VAL [LDV_IN_INTERRUPT=1, \old(size)=464, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, p={2050:0}, ref_cnt=0, size=464, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3295] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [LDV_IN_INTERRUPT=1, \old(cond)=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3249] COND FALSE !(!cond) VAL [LDV_IN_INTERRUPT=1, \old(cond)=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3295] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [LDV_IN_INTERRUPT=1, \old(size)=464, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, p={2050:0}, ref_cnt=0, size=464, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3296] return (p); VAL [LDV_IN_INTERRUPT=1, \old(size)=464, \result={2050:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, ref_cnt=0, size=464, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4065] RET, EXPR ldv_init_zalloc(464UL) VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={0:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4065] tmp = ldv_init_zalloc(464UL) [L4066] virtblk_fops_group0 = (struct block_device *)tmp VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4143] RET ldv_initialize_block_device_operations_2() [L4144] ldv_state_variable_1 = 1 [L4145] CALL ldv_initialize_virtio_driver_1() [L4054] void *tmp ; VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4056] CALL, EXPR ldv_init_zalloc(1048UL) VAL [LDV_IN_INTERRUPT=1, \old(size)=1048, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3290] void *p ; [L3291] void *tmp ; [L3293] EXPR, FCALL calloc(1UL, size) VAL [LDV_IN_INTERRUPT=1, \old(size)=1048, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, size=1048, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3293] tmp = calloc(1UL, size) [L3294] p = tmp VAL [LDV_IN_INTERRUPT=1, \old(size)=1048, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, p={131075:0}, ref_cnt=0, size=1048, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3295] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [LDV_IN_INTERRUPT=1, \old(cond)=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3249] COND FALSE !(!cond) VAL [LDV_IN_INTERRUPT=1, \old(cond)=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3295] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [LDV_IN_INTERRUPT=1, \old(size)=1048, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, p={131075:0}, ref_cnt=0, size=1048, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L3296] return (p); VAL [LDV_IN_INTERRUPT=1, \old(size)=1048, \result={131075:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, size=1048, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4056] RET, EXPR ldv_init_zalloc(1048UL) VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={0:0}] [L4056] tmp = ldv_init_zalloc(1048UL) [L4057] virtio_blk_group0 = (struct virtio_device *)tmp VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4145] RET ldv_initialize_virtio_driver_1() [L4125] case 1: VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={2305843009213693952:0}, ldvarg1={-9223371968135299065:0}, ldvarg2=1447184708, ldvarg3={-4611686018427387902:0}, major=0, ref_cnt=0, tmp___0=1, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4093] tmp___0 = __VERIFIER_nondet_int() [L4095] case 0: VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={2305843009213693952:0}, ldvarg1={-9223371968135299065:0}, ldvarg2=1447184708, ldvarg3={-4611686018427387902:0}, major=0, ref_cnt=0, tmp___0=2, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4095] case 0: [L4125] case 1: [L4163] case 2: VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={2305843009213693952:0}, ldvarg1={-9223371968135299065:0}, ldvarg2=1447184708, ldvarg3={-4611686018427387902:0}, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4163] case 2: VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4163] case 2: [L4165] tmp___3 = __VERIFIER_nondet_int() [L4167] case 0: VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={2305843009213693952:0}, ldvarg1={-9223371968135299065:0}, ldvarg2=1447184708, ldvarg3={-4611686018427387902:0}, major=0, ref_cnt=0, tmp___3=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4163] case 2: VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4163] case 2: [L4169] EXPR \read(ldvarg3) [L4169] EXPR \read(ldvarg1) [L4169] CALL virtblk_ioctl(virtblk_fops_group0, ldvarg3, ldvarg2, ldvarg1) [L3756] struct gendisk *disk ; [L3757] struct virtio_blk *vblk ; [L3758] void *usr_data ; [L3759] char id_str[20U] ; [L3760] int err ; [L3761] int tmp ; [L3762] bool tmp___0 ; [L3763] int tmp___1 ; [L3764] int tmp___2 ; [L3766] EXPR bdev->bd_disk [L3766] disk = bdev->bd_disk [L3767] EXPR disk->private_data [L3767] vblk = (struct virtio_blk *)disk->private_data [L3768] COND TRUE cmd == 1447184708U [L3769] usr_data = (void *)data [L3770] CALL, EXPR virtblk_get_id(disk, (char *)(& id_str)) [L3723] struct virtio_blk *vblk ; [L3724] struct request *req ; [L3725] struct bio *bio ; [L3726] long tmp ; [L3727] long tmp___0 ; [L3728] long tmp___1 ; [L3729] long tmp___2 ; [L3730] int tmp___3 ; [L3732] EXPR disk->private_data [L3732] vblk = (struct virtio_blk *)disk->private_data [L3733] EXPR vblk->disk [L3733] EXPR (vblk->disk)->queue [L3733] CALL, EXPR bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L4381] CALL, EXPR ldv_malloc(sizeof(struct bio)) VAL [LDV_IN_INTERRUPT=1, \old(size)=112, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3254] void *p ; [L3255] void *tmp ; [L3256] int tmp___0 ; [L3258] tmp___0 = __VERIFIER_nondet_int() [L3259] COND TRUE tmp___0 != 0 [L3260] return ((void *)0); VAL [LDV_IN_INTERRUPT=1, \old(size)=112, \result={0:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, size=112, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4381] RET, EXPR ldv_malloc(sizeof(struct bio)) VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4381] return ldv_malloc(sizeof(struct bio)); [L3733] RET, EXPR bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L3733] bio = bio_map_kern((vblk->disk)->queue, (void *)id_str, 20U, 208U) [L3734] CALL, EXPR IS_ERR((void const *)bio) VAL [LDV_IN_INTERRUPT=1, \old(ptr)={0:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4216] bool tmp ; VAL [LDV_IN_INTERRUPT=1, \old(ptr)={0:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={0:0}, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4218] CALL, EXPR ldv_is_err(ptr) VAL [LDV_IN_INTERRUPT=1, \old(ptr)={0:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4242] return ((unsigned long )ptr > 2012UL); VAL [LDV_IN_INTERRUPT=1, \old(ptr)={0:0}, \result=0, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4218] RET, EXPR ldv_is_err(ptr) VAL [LDV_IN_INTERRUPT=1, \old(ptr)={0:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={0:0}, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4218] tmp = ldv_is_err(ptr) [L4219] return ((long )tmp); VAL [LDV_IN_INTERRUPT=1, \old(ptr)={0:0}, \result=0, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={0:0}, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3734] RET, EXPR IS_ERR((void const *)bio) VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, bio={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, vblk={71:-1152921504606846984}, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3734] tmp___0 = IS_ERR((void const *)bio) [L3735] COND FALSE !(tmp___0 != 0L) [L3740] EXPR vblk->disk [L3740] EXPR (vblk->disk)->queue [L3740] CALL, EXPR ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L4225] struct request *tmp ; [L4227] CALL, EXPR ldv_blk_make_request(ldv_func_arg3) [L4309] struct request *res ; [L4310] long tmp___0 ; VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4312] COND FALSE !(ldv_blk_rq != 0) VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4316] CALL, EXPR ldv_malloc(sizeof(struct request)) VAL [LDV_IN_INTERRUPT=1, \old(size)=322, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3254] void *p ; [L3255] void *tmp ; [L3256] int tmp___0 ; [L3258] tmp___0 = __VERIFIER_nondet_int() [L3259] COND FALSE !(tmp___0 != 0) [L3262] tmp = malloc(size) [L3263] p = tmp VAL [LDV_IN_INTERRUPT=1, \old(size)=322, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, p={71:0}, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3264] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [LDV_IN_INTERRUPT=1, \old(cond)=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3249] COND FALSE !(!cond) VAL [LDV_IN_INTERRUPT=1, \old(cond)=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3264] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [LDV_IN_INTERRUPT=1, \old(size)=322, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, p={71:0}, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3265] CALL, EXPR IS_ERR(p) VAL [LDV_IN_INTERRUPT=1, \old(ptr)={71:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4216] bool tmp ; VAL [LDV_IN_INTERRUPT=1, \old(ptr)={71:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={71:0}, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4218] CALL, EXPR ldv_is_err(ptr) VAL [LDV_IN_INTERRUPT=1, \old(ptr)={71:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4242] return ((unsigned long )ptr > 2012UL); VAL [LDV_IN_INTERRUPT=1, \old(ptr)={71:0}, \result=0, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4218] RET, EXPR ldv_is_err(ptr) VAL [LDV_IN_INTERRUPT=1, \old(ptr)={71:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={71:0}, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4218] tmp = ldv_is_err(ptr) [L4219] return ((long )tmp); VAL [LDV_IN_INTERRUPT=1, \old(ptr)={71:0}, \result=0, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={71:0}, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3265] RET, EXPR IS_ERR(p) VAL [LDV_IN_INTERRUPT=1, \old(size)=322, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, p={71:0}, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3265] CALL assume_abort_if_not(IS_ERR(p) == 0) VAL [LDV_IN_INTERRUPT=1, \old(cond)=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3249] COND FALSE !(!cond) VAL [LDV_IN_INTERRUPT=1, \old(cond)=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3265] RET assume_abort_if_not(IS_ERR(p) == 0) VAL [LDV_IN_INTERRUPT=1, \old(size)=322, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, p={71:0}, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3266] return (p); VAL [LDV_IN_INTERRUPT=1, \old(size)=322, \result={71:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4316] RET, EXPR ldv_malloc(sizeof(struct request)) VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4316] res = ldv_malloc(sizeof(struct request)) [L4317] COND FALSE !((unsigned long )res == (unsigned long )((struct request *)0)) VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, res={71:0}, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4321] CALL, EXPR IS_ERR___0((void const *)res) [L4277] long tmp ; VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={71:0}, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4279] CALL, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [LDV_IN_INTERRUPT=1, \old(c)=0, \old(exp)=0, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3333] return (exp); VAL [LDV_IN_INTERRUPT=1, \old(c)=0, \old(exp)=0, \result=0, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4279] RET, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={71:0}, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4279] tmp = ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) [L4280] return (tmp); VAL [LDV_IN_INTERRUPT=1, \result=0, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={71:0}, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4321] RET, EXPR IS_ERR___0((void const *)res) [L4321] tmp___0 = IS_ERR___0((void const *)res) [L4322] COND TRUE tmp___0 == 0L [L4323] ldv_blk_rq = 1 VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, res={71:0}, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4326] return (res); VAL [LDV_IN_INTERRUPT=1, \result={71:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4227] RET, EXPR ldv_blk_make_request(ldv_func_arg3) [L4227] tmp = ldv_blk_make_request(ldv_func_arg3) [L4228] return (tmp); VAL [LDV_IN_INTERRUPT=1, \result={71:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3740] RET, EXPR ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L3740] req = ldv_blk_make_request_5((vblk->disk)->queue, bio, 208U) [L3741] CALL, EXPR IS_ERR((void const *)req) VAL [LDV_IN_INTERRUPT=1, \old(ptr)={71:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4216] bool tmp ; VAL [LDV_IN_INTERRUPT=1, \old(ptr)={71:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={71:0}, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4218] CALL, EXPR ldv_is_err(ptr) VAL [LDV_IN_INTERRUPT=1, \old(ptr)={71:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4242] return ((unsigned long )ptr > 2012UL); VAL [LDV_IN_INTERRUPT=1, \old(ptr)={71:0}, \result=0, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4218] RET, EXPR ldv_is_err(ptr) VAL [LDV_IN_INTERRUPT=1, \old(ptr)={71:0}, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={71:0}, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4218] tmp = ldv_is_err(ptr) [L4219] return ((long )tmp); VAL [LDV_IN_INTERRUPT=1, \old(ptr)={71:0}, \result=0, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ptr={71:0}, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3741] RET, EXPR IS_ERR((void const *)req) VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, bio={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, req={71:0}, vblk={71:-1152921504606846984}, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3741] tmp___2 = IS_ERR((void const *)req) [L3742] COND FALSE !(tmp___2 != 0L) [L3748] req->cmd_type = 7 [L3749] EXPR vblk->disk [L3749] EXPR (vblk->disk)->queue [L3749] EXPR vblk->disk [L3749] CALL, EXPR blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L4391] return __VERIFIER_nondet_int(); [L3749] RET, EXPR blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3749] tmp___3 = blk_execute_rq((vblk->disk)->queue, vblk->disk, req, 0) [L3750] return (tmp___3); VAL [LDV_IN_INTERRUPT=1, \result=1, __this_module={0:0}, bio={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3770] RET, EXPR virtblk_get_id(disk, (char *)(& id_str)) [L3770] err = virtblk_get_id(disk, (char *)(& id_str)) [L3771] COND FALSE !(err == 0) VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, err=1, features={10:0}, id_str={-9223372036854775806:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, mode=0, ref_cnt=0, usr_data={0:0}, vblk={71:-1152921504606846984}, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L3779] return (err); [L3779] return (err); VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, mode=0, ref_cnt=0, usr_data={0:0}, vblk={71:-1152921504606846984}, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4169] RET virtblk_ioctl(virtblk_fops_group0, ldvarg3, ldvarg2, ldvarg1) [L4170] ldv_state_variable_2 = 1 VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={2305843009213693952:0}, ldvarg1={-9223371968135299065:0}, ldvarg2=1447184708, ldvarg3={-4611686018427387902:0}, major=0, ref_cnt=0, tmp___3=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4093] tmp___0 = __VERIFIER_nondet_int() [L4095] case 0: VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={2305843009213693952:0}, ldvarg1={-9223371968135299065:0}, ldvarg2=1447184708, ldvarg3={-4611686018427387902:0}, major=0, ref_cnt=0, tmp___0=1, tmp___3=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4095] case 0: [L4125] case 1: [L4127] tmp___2 = __VERIFIER_nondet_int() [L4129] case 0: VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={2305843009213693952:0}, ldvarg1={-9223371968135299065:0}, ldvarg2=1447184708, ldvarg3={-4611686018427387902:0}, major=0, ref_cnt=0, tmp___0=1, tmp___2=0, tmp___3=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4125] case 1: [L4131] CALL fini() [L4042] FCALL unregister_blkdev((unsigned int )major, "virtblk") [L4043] FCALL unregister_virtio_driver(& virtio_blk) [L4131] RET fini() [L4132] ldv_state_variable_0 = 2 VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={2305843009213693952:0}, ldvarg1={-9223371968135299065:0}, ldvarg2=1447184708, ldvarg3={-4611686018427387902:0}, major=0, ref_cnt=0, tmp___0=1, tmp___2=0, tmp___3=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4194] CALL ldv_check_final_state() [L4343] COND TRUE ldv_blk_rq != 0 VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4344] CALL ldv_error() VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] [L4236] reach_error() VAL [LDV_IN_INTERRUPT=1, __this_module={0:0}, features={10:0}, id_table={9:0}, index=0, ldv_blk_rq=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, major=0, ref_cnt=0, virtblk_fops={8:0}, virtblk_fops_group0={2050:0}, virtio_blk={11:0}, virtio_blk_group0={131075:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 458 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66.9s, OverallIterations: 10, TraceHistogramMax: 12, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.1s, AutomataDifference: 14.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 1079 SdHoareTripleChecker+Valid, 11.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1072 mSDsluCounter, 21860 SdHoareTripleChecker+Invalid, 11.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16601 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 391 IncrementalHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 5259 mSDtfsCounter, 391 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2491 GetRequests, 2430 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1570occurred in iteration=7, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 80 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.1s SsaConstructionTime, 16.1s SatisfiabilityAnalysisTime, 15.0s InterpolantComputationTime, 1433 NumberOfCodeBlocks, 1433 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2476 ConstructedInterpolants, 0 QuantifiedInterpolants, 3026 SizeOfPredicates, 6 NumberOfNonLiveVariables, 6372 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 1657/1714 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-01 06:53:40,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...