/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 bitwuzla -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 19:24:35,100 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 19:24:35,180 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 19:24:35,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 19:24:35,187 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 19:24:35,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 19:24:35,218 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 19:24:35,219 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 19:24:35,220 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 19:24:35,221 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 19:24:35,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 19:24:35,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 19:24:35,222 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 19:24:35,222 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 19:24:35,223 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 19:24:35,223 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 19:24:35,223 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 19:24:35,224 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 19:24:35,224 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 19:24:35,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 19:24:35,225 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 19:24:35,225 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 19:24:35,226 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 19:24:35,226 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 19:24:35,226 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 19:24:35,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 19:24:35,227 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 19:24:35,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 19:24:35,228 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 19:24:35,228 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 19:24:35,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 19:24:35,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 19:24:35,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 19:24:35,229 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 19:24:35,230 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 19:24:35,230 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 19:24:35,230 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 19:24:35,230 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 19:24:35,231 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 19:24:35,231 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 19:24:35,231 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 19:24:35,232 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 19:24:35,232 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-01 19:24:35,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 19:24:35,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 19:24:35,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 19:24:35,581 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 19:24:35,582 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 19:24:35,583 INFO L431 ainManager$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 19:24:37,084 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 19:24:37,486 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 19:24:37,486 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 19:24:37,524 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02ee06d2e/98637ebf4b174a02a86c53b4f3202fca/FLAG172b4a405 [2024-11-01 19:24:37,673 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02ee06d2e/98637ebf4b174a02a86c53b4f3202fca [2024-11-01 19:24:37,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 19:24:37,678 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 19:24:37,679 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 19:24:37,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 19:24:37,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 19:24:37,685 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 07:24:37" (1/1) ... [2024-11-01 19:24:37,686 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7376a44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:24:37, skipping insertion in model container [2024-11-01 19:24:37,686 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 07:24:37" (1/1) ... [2024-11-01 19:24:37,766 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 19:24:38,410 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 19:24:38,415 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 19:24:38,419 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 19:24:38,419 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 19:24:38,431 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 19:24:38,438 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 19:24:38,439 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 19:24:38,441 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 19:24:38,442 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 19:24:38,443 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 19:24:38,445 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 19:24:38,445 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 19:24:38,451 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 19:24:38,461 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 19:24:38,461 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 19:24:38,462 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 19:24:38,462 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 19:24:38,463 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 19:24:38,464 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 19:24:38,470 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 19:24:38,472 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 19:24:38,478 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 19:24:38,479 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 19:24:38,492 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 19:24:38,493 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 19:24:38,494 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 19:24:38,499 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 19:24:38,500 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 19:24:38,507 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 19:24:38,514 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 19:24:38,521 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 19:24:38,523 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 19:24:38,523 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 19:24:38,526 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 19:24:38,527 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 19:24:38,528 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 19:24:38,529 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 19:24:38,534 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 19:24:38,540 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 19:24:38,542 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 19:24:38,555 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 19:24:38,556 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 19:24:38,559 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 19:24:38,559 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 19:24:38,559 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 19:24:38,573 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 19:24:38,593 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 19:24:38,608 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 19:24:38,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 19:24:38,629 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 19:24:38,713 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 19:24:38,740 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 19:24:38,741 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 19:24:38,742 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 19:24:38,830 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 19:24:38,842 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 19:24:38,916 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 19:24:38,931 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 19:24:38,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 19:24:39,038 INFO L204 MainTranslator]: Completed translation [2024-11-01 19:24:39,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:24:39 WrapperNode [2024-11-01 19:24:39,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 19:24:39,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 19:24:39,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 19:24:39,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 19:24:39,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:24:39" (1/1) ... [2024-11-01 19:24:39,108 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:24:39" (1/1) ... [2024-11-01 19:24:39,215 INFO L138 Inliner]: procedures = 151, calls = 525, calls flagged for inlining = 83, calls inlined = 83, statements flattened = 1673 [2024-11-01 19:24:39,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 19:24:39,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 19:24:39,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 19:24:39,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 19:24:39,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:24:39" (1/1) ... [2024-11-01 19:24:39,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:24:39" (1/1) ... [2024-11-01 19:24:39,244 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:24:39" (1/1) ... [2024-11-01 19:24:39,445 INFO L175 MemorySlicer]: Split 263 memory accesses to 10 slices as follows [192, 2, 4, 8, 8, 25, 21, 1, 1, 1]. 73 percent of accesses are in the largest equivalence class. The 31 initializations are split as follows [13, 2, 0, 8, 8, 0, 0, 0, 0, 0]. The 91 writes are split as follows [63, 0, 2, 0, 0, 3, 21, 1, 0, 1]. [2024-11-01 19:24:39,446 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:24:39" (1/1) ... [2024-11-01 19:24:39,446 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:24:39" (1/1) ... [2024-11-01 19:24:39,538 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:24:39" (1/1) ... [2024-11-01 19:24:39,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:24:39" (1/1) ... [2024-11-01 19:24:39,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:24:39" (1/1) ... [2024-11-01 19:24:39,584 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:24:39" (1/1) ... [2024-11-01 19:24:39,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 19:24:39,610 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 19:24:39,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 19:24:39,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 19:24:39,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:24:39" (1/1) ... [2024-11-01 19:24:39,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 19:24:39,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 19:24:39,641 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 19:24:39,649 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 19:24:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_segment_size [2024-11-01 19:24:39,675 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_segment_size [2024-11-01 19:24:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-01 19:24:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-01 19:24:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-01 19:24:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-01 19:24:39,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-01 19:24:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-01 19:24:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-11-01 19:24:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2024-11-01 19:24:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2024-11-01 19:24:39,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#9 [2024-11-01 19:24:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-01 19:24:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-01 19:24:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-01 19:24:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-01 19:24:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-01 19:24:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#5 [2024-11-01 19:24:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#6 [2024-11-01 19:24:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#7 [2024-11-01 19:24:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#8 [2024-11-01 19:24:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#9 [2024-11-01 19:24:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-01 19:24:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-01 19:24:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-01 19:24:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-01 19:24:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-01 19:24:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-01 19:24:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-01 19:24:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-01 19:24:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-01 19:24:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-01 19:24:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_config_buf [2024-11-01 19:24:39,679 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_config_buf [2024-11-01 19:24:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-01 19:24:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-01 19:24:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-01 19:24:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-01 19:24:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-01 19:24:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-11-01 19:24:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2024-11-01 19:24:39,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#7 [2024-11-01 19:24:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#8 [2024-11-01 19:24:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#9 [2024-11-01 19:24:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-01 19:24:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-01 19:24:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-01 19:24:39,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-01 19:24:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-01 19:24:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-01 19:24:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-01 19:24:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-01 19:24:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-01 19:24:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-01 19:24:39,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-01 19:24:39,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-01 19:24:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-01 19:24:39,682 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-01 19:24:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2024-11-01 19:24:39,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~X~C_UINT~TO~VOID [2024-11-01 19:24:39,682 INFO L130 BoogieDeclarations]: Found specification of procedure req_get_ioprio [2024-11-01 19:24:39,683 INFO L138 BoogieDeclarations]: Found implementation of procedure req_get_ioprio [2024-11-01 19:24:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-01 19:24:39,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-01 19:24:39,683 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2024-11-01 19:24:39,684 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2024-11-01 19:24:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2024-11-01 19:24:39,684 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2024-11-01 19:24:39,684 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-01 19:24:39,685 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-01 19:24:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-01 19:24:39,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-01 19:24:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-01 19:24:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-01 19:24:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-01 19:24:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-01 19:24:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-01 19:24:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-01 19:24:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#6 [2024-11-01 19:24:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#7 [2024-11-01 19:24:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#8 [2024-11-01 19:24:39,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#9 [2024-11-01 19:24:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-01 19:24:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-01 19:24:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2024-11-01 19:24:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2024-11-01 19:24:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#4 [2024-11-01 19:24:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#5 [2024-11-01 19:24:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#6 [2024-11-01 19:24:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#7 [2024-11-01 19:24:39,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#8 [2024-11-01 19:24:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#9 [2024-11-01 19:24:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-01 19:24:39,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-01 19:24:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure index_to_minor [2024-11-01 19:24:39,687 INFO L138 BoogieDeclarations]: Found implementation of procedure index_to_minor [2024-11-01 19:24:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-01 19:24:39,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-01 19:24:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-01 19:24:39,688 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-01 19:24:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-01 19:24:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-01 19:24:39,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-01 19:24:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-01 19:24:39,688 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-01 19:24:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 19:24:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure virtio_has_feature [2024-11-01 19:24:39,688 INFO L138 BoogieDeclarations]: Found implementation of procedure virtio_has_feature [2024-11-01 19:24:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-01 19:24:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-01 19:24:39,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-01 19:24:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-01 19:24:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-01 19:24:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-01 19:24:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-01 19:24:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-01 19:24:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-01 19:24:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-01 19:24:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-01 19:24:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-01 19:24:39,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-01 19:24:39,689 INFO L130 BoogieDeclarations]: Found specification of procedure virtblk_remove [2024-11-01 19:24:39,689 INFO L138 BoogieDeclarations]: Found implementation of procedure virtblk_remove [2024-11-01 19:24:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2024-11-01 19:24:39,690 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2024-11-01 19:24:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-01 19:24:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-01 19:24:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-01 19:24:39,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-01 19:24:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-01 19:24:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-01 19:24:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-01 19:24:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-01 19:24:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-01 19:24:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-01 19:24:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2024-11-01 19:24:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2024-11-01 19:24:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-01 19:24:39,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-01 19:24:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-01 19:24:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-01 19:24:39,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-01 19:24:39,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2024-11-01 19:24:39,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2024-11-01 19:24:39,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#5 [2024-11-01 19:24:39,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#6 [2024-11-01 19:24:39,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#7 [2024-11-01 19:24:39,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#8 [2024-11-01 19:24:39,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#9 [2024-11-01 19:24:39,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-01 19:24:39,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-01 19:24:39,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-01 19:24:39,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-01 19:24:39,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-01 19:24:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-01 19:24:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-01 19:24:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2024-11-01 19:24:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2024-11-01 19:24:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#9 [2024-11-01 19:24:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-01 19:24:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-01 19:24:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#2 [2024-11-01 19:24:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#3 [2024-11-01 19:24:39,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#4 [2024-11-01 19:24:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#5 [2024-11-01 19:24:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#6 [2024-11-01 19:24:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#7 [2024-11-01 19:24:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#8 [2024-11-01 19:24:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#9 [2024-11-01 19:24:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-01 19:24:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-01 19:24:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-01 19:24:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-01 19:24:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-01 19:24:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-01 19:24:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-01 19:24:39,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-01 19:24:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-01 19:24:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-01 19:24:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-01 19:24:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 19:24:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-01 19:24:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-01 19:24:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-01 19:24:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-01 19:24:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-01 19:24:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-01 19:24:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-01 19:24:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-01 19:24:39,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-01 19:24:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-01 19:24:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-01 19:24:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-01 19:24:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-01 19:24:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-01 19:24:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-01 19:24:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-01 19:24:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-01 19:24:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-11-01 19:24:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-11-01 19:24:39,698 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2024-11-01 19:24:39,698 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2024-11-01 19:24:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_ordered [2024-11-01 19:24:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_ordered [2024-11-01 19:24:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 19:24:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 19:24:39,699 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-01 19:24:39,699 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-01 19:24:40,255 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 19:24:40,258 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 19:24:40,348 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-01 19:24:47,585 INFO L? ?]: Removed 971 outVars from TransFormulas that were not future-live. [2024-11-01 19:24:47,585 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 19:24:47,604 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 19:24:47,605 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-01 19:24:47,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 07:24:47 BoogieIcfgContainer [2024-11-01 19:24:47,605 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 19:24:47,607 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 19:24:47,607 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 19:24:47,610 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 19:24:47,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 07:24:37" (1/3) ... [2024-11-01 19:24:47,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f57f327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 07:24:47, skipping insertion in model container [2024-11-01 19:24:47,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 07:24:39" (2/3) ... [2024-11-01 19:24:47,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f57f327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 07:24:47, skipping insertion in model container [2024-11-01 19:24:47,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 07:24:47" (3/3) ... [2024-11-01 19:24:47,612 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 19:24:47,629 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 19:24:47,630 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 19:24:47,716 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 19:24:47,723 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;@5cdf8798, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 19:24:47,723 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 19:24:47,730 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 19:24:47,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-01 19:24:47,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:24:47,740 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 19:24:47,740 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:24:47,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:24:47,745 INFO L85 PathProgramCache]: Analyzing trace with hash -116747867, now seen corresponding path program 1 times [2024-11-01 19:24:47,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:24:47,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581658287] [2024-11-01 19:24:47,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:24:47,755 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:24:47,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:24:47,758 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:24:47,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-01 19:24:48,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:24:48,297 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-01 19:24:48,303 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:24:48,318 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 19:24:48,318 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:24:48,453 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 19:24:48,454 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:24:48,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581658287] [2024-11-01 19:24:48,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [581658287] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:24:48,455 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:24:48,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-01 19:24:48,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402658222] [2024-11-01 19:24:48,458 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:24:48,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-01 19:24:48,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:24:48,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-01 19:24:48,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-01 19:24:48,485 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 19:24:48,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:24:48,561 INFO L93 Difference]: Finished difference Result 909 states and 1241 transitions. [2024-11-01 19:24:48,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-01 19:24:48,564 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 19:24:48,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:24:48,582 INFO L225 Difference]: With dead ends: 909 [2024-11-01 19:24:48,583 INFO L226 Difference]: Without dead ends: 439 [2024-11-01 19:24:48,595 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 19:24:48,599 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 19:24:48,603 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 19:24:48,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-01 19:24:48,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-11-01 19:24:48,692 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 19:24:48,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 581 transitions. [2024-11-01 19:24:48,705 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 581 transitions. Word has length 46 [2024-11-01 19:24:48,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:24:48,706 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 581 transitions. [2024-11-01 19:24:48,706 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 19:24:48,706 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 581 transitions. [2024-11-01 19:24:48,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-01 19:24:48,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:24:48,712 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 19:24:48,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-01 19:24:48,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:24:48,914 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:24:48,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:24:48,914 INFO L85 PathProgramCache]: Analyzing trace with hash -960753369, now seen corresponding path program 1 times [2024-11-01 19:24:48,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:24:48,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [611265984] [2024-11-01 19:24:48,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:24:48,915 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:24:48,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:24:48,916 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:24:48,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-01 19:24:49,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:24:49,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-01 19:24:49,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:24:49,637 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 19:24:49,638 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:24:50,140 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-01 19:24:50,141 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:24:50,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [611265984] [2024-11-01 19:24:50,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [611265984] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-01 19:24:50,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-01 19:24:50,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-01 19:24:50,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800358884] [2024-11-01 19:24:50,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-01 19:24:50,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-01 19:24:50,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:24:50,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-01 19:24:50,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-01 19:24:50,144 INFO L87 Difference]: Start difference. First operand 439 states and 581 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-01 19:24:50,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:24:50,328 INFO L93 Difference]: Finished difference Result 876 states and 1160 transitions. [2024-11-01 19:24:50,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 19:24:50,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2024-11-01 19:24:50,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:24:50,339 INFO L225 Difference]: With dead ends: 876 [2024-11-01 19:24:50,339 INFO L226 Difference]: Without dead ends: 440 [2024-11-01 19:24:50,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 86 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 19:24:50,345 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 19:24:50,346 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 19:24:50,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-11-01 19:24:50,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2024-11-01 19:24:50,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 336 states have (on average 1.2678571428571428) internal successors, (426), 344 states have internal predecessors, (426), 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 19:24:50,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 582 transitions. [2024-11-01 19:24:50,395 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 582 transitions. Word has length 46 [2024-11-01 19:24:50,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:24:50,397 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 582 transitions. [2024-11-01 19:24:50,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-01 19:24:50,398 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 582 transitions. [2024-11-01 19:24:50,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-01 19:24:50,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:24:50,400 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 19:24:50,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-01 19:24:50,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:24:50,605 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:24:50,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:24:50,606 INFO L85 PathProgramCache]: Analyzing trace with hash 2028909633, now seen corresponding path program 1 times [2024-11-01 19:24:50,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:24:50,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1863736189] [2024-11-01 19:24:50,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:24:50,606 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:24:50,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:24:50,608 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:24:50,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-01 19:24:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:24:51,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-01 19:24:51,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:24:51,339 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-01 19:24:51,339 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:24:52,017 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-01 19:24:52,018 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:24:52,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1863736189] [2024-11-01 19:24:52,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1863736189] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 19:24:52,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 19:24:52,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-01 19:24:52,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204139553] [2024-11-01 19:24:52,019 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 19:24:52,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-01 19:24:52,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:24:52,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-01 19:24:52,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-01 19:24:52,020 INFO L87 Difference]: Start difference. First operand 440 states and 582 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-01 19:24:52,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:24:52,773 INFO L93 Difference]: Finished difference Result 887 states and 1175 transitions. [2024-11-01 19:24:52,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-01 19:24:52,775 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 48 [2024-11-01 19:24:52,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:24:52,779 INFO L225 Difference]: With dead ends: 887 [2024-11-01 19:24:52,779 INFO L226 Difference]: Without dead ends: 450 [2024-11-01 19:24:52,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 88 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 19:24:52,784 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 5 mSDsluCounter, 2872 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3450 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-01 19:24:52,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3450 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-01 19:24:52,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-01 19:24:52,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2024-11-01 19:24:52,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 345 states have (on average 1.2695652173913043) internal successors, (438), 353 states have internal predecessors, (438), 79 states have call successors, (79), 26 states have call predecessors, (79), 25 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-01 19:24:52,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 594 transitions. [2024-11-01 19:24:52,807 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 594 transitions. Word has length 48 [2024-11-01 19:24:52,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:24:52,808 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 594 transitions. [2024-11-01 19:24:52,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-01 19:24:52,808 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 594 transitions. [2024-11-01 19:24:52,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-01 19:24:52,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:24:52,810 INFO L215 NwaCegarLoop]: trace histogram [6, 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 19:24:52,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Forceful destruction successful, exit code 0 [2024-11-01 19:24:53,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:24:53,011 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:24:53,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:24:53,012 INFO L85 PathProgramCache]: Analyzing trace with hash 709441479, now seen corresponding path program 2 times [2024-11-01 19:24:53,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:24:53,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [612139470] [2024-11-01 19:24:53,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:24:53,012 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:24:53,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:24:53,014 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:24:53,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-01 19:24:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:24:53,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-01 19:24:53,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:24:54,170 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-01 19:24:54,170 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:24:55,548 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-01 19:24:55,549 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:24:55,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [612139470] [2024-11-01 19:24:55,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [612139470] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 19:24:55,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 19:24:55,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-01 19:24:55,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197336056] [2024-11-01 19:24:55,549 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 19:24:55,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-01 19:24:55,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:24:55,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-01 19:24:55,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-01 19:24:55,551 INFO L87 Difference]: Start difference. First operand 450 states and 594 transitions. Second operand has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-01 19:24:57,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:24:57,759 INFO L93 Difference]: Finished difference Result 897 states and 1188 transitions. [2024-11-01 19:24:57,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-01 19:24:57,762 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2024-11-01 19:24:57,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:24:57,766 INFO L225 Difference]: With dead ends: 897 [2024-11-01 19:24:57,766 INFO L226 Difference]: Without dead ends: 456 [2024-11-01 19:24:57,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=144, Invalid=276, Unknown=0, NotChecked=0, Total=420 [2024-11-01 19:24:57,771 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 10 mSDsluCounter, 4023 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4601 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-01 19:24:57,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4601 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-01 19:24:57,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-01 19:24:57,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2024-11-01 19:24:57,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 351 states have (on average 1.2678062678062678) internal successors, (445), 359 states have internal predecessors, (445), 79 states have call successors, (79), 26 states have call predecessors, (79), 25 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-01 19:24:57,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 601 transitions. [2024-11-01 19:24:57,795 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 601 transitions. Word has length 52 [2024-11-01 19:24:57,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:24:57,796 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 601 transitions. [2024-11-01 19:24:57,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.7857142857142856) internal successors, (53), 14 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-01 19:24:57,796 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 601 transitions. [2024-11-01 19:24:57,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-01 19:24:57,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:24:57,798 INFO L215 NwaCegarLoop]: trace histogram [10, 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 19:24:57,811 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0 [2024-11-01 19:24:57,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:24:57,999 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:24:58,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:24:58,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1697453561, now seen corresponding path program 3 times [2024-11-01 19:24:58,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:24:58,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [242207175] [2024-11-01 19:24:58,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:24:58,000 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:24:58,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:24:58,003 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:24:58,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-01 19:24:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:24:58,475 INFO L255 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-01 19:24:58,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:24:58,829 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-01 19:24:58,829 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:24:59,577 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-01 19:24:59,578 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:24:59,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [242207175] [2024-11-01 19:24:59,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [242207175] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 19:24:59,578 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 19:24:59,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-01 19:24:59,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803568829] [2024-11-01 19:24:59,578 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 19:24:59,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-01 19:24:59,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:24:59,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-01 19:24:59,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-01 19:24:59,580 INFO L87 Difference]: Start difference. First operand 456 states and 601 transitions. Second operand has 10 states, 10 states have (on average 4.4) internal successors, (44), 10 states have internal predecessors, (44), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-01 19:25:00,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:25:00,176 INFO L93 Difference]: Finished difference Result 888 states and 1172 transitions. [2024-11-01 19:25:00,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-01 19:25:00,178 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 10 states have internal predecessors, (44), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2024-11-01 19:25:00,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:25:00,182 INFO L225 Difference]: With dead ends: 888 [2024-11-01 19:25:00,182 INFO L226 Difference]: Without dead ends: 456 [2024-11-01 19:25:00,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2024-11-01 19:25:00,184 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 6 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2305 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 19:25:00,184 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2305 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-01 19:25:00,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-01 19:25:00,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2024-11-01 19:25:00,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 351 states have (on average 1.2564102564102564) internal successors, (441), 359 states have internal predecessors, (441), 79 states have call successors, (79), 26 states have call predecessors, (79), 25 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-01 19:25:00,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 597 transitions. [2024-11-01 19:25:00,202 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 597 transitions. Word has length 56 [2024-11-01 19:25:00,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:25:00,203 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 597 transitions. [2024-11-01 19:25:00,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 10 states have internal predecessors, (44), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-01 19:25:00,203 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 597 transitions. [2024-11-01 19:25:00,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-01 19:25:00,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:25:00,204 INFO L215 NwaCegarLoop]: trace histogram [12, 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 19:25:00,217 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0 [2024-11-01 19:25:00,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:25:00,405 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:25:00,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:25:00,406 INFO L85 PathProgramCache]: Analyzing trace with hash 944801383, now seen corresponding path program 4 times [2024-11-01 19:25:00,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:25:00,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069229795] [2024-11-01 19:25:00,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:25:00,406 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:25:00,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:25:00,407 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:25:00,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Waiting until timeout for monitored process [2024-11-01 19:25:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:25:00,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 19:25:00,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:25:00,982 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-01 19:25:00,982 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:25:01,226 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-01 19:25:01,226 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:25:01,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2069229795] [2024-11-01 19:25:01,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2069229795] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:25:01,227 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:25:01,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-01 19:25:01,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398389812] [2024-11-01 19:25:01,227 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:25:01,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-01 19:25:01,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:25:01,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-01 19:25:01,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-01 19:25:01,228 INFO L87 Difference]: Start difference. First operand 456 states and 597 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-01 19:25:05,248 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 19:25:07,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:25:07,177 INFO L93 Difference]: Finished difference Result 1686 states and 2235 transitions. [2024-11-01 19:25:07,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 19:25:07,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 58 [2024-11-01 19:25:07,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:25:07,187 INFO L225 Difference]: With dead ends: 1686 [2024-11-01 19:25:07,187 INFO L226 Difference]: Without dead ends: 1261 [2024-11-01 19:25:07,190 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-01 19:25:07,191 INFO L432 NwaCegarLoop]: 582 mSDtfsCounter, 1081 mSDsluCounter, 1479 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 2061 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-01 19:25:07,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 2061 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 174 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2024-11-01 19:25:07,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2024-11-01 19:25:07,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1255. [2024-11-01 19:25:07,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 964 states have (on average 1.2686721991701244) internal successors, (1223), 986 states have internal predecessors, (1223), 221 states have call successors, (221), 70 states have call predecessors, (221), 69 states have return successors, (219), 219 states have call predecessors, (219), 219 states have call successors, (219) [2024-11-01 19:25:07,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1663 transitions. [2024-11-01 19:25:07,252 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1663 transitions. Word has length 58 [2024-11-01 19:25:07,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:25:07,254 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1663 transitions. [2024-11-01 19:25:07,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-01 19:25:07,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1663 transitions. [2024-11-01 19:25:07,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-01 19:25:07,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:25:07,256 INFO L215 NwaCegarLoop]: trace histogram [12, 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] [2024-11-01 19:25:07,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Ended with exit code 0 [2024-11-01 19:25:07,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:25:07,460 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:25:07,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:25:07,460 INFO L85 PathProgramCache]: Analyzing trace with hash 681581813, now seen corresponding path program 1 times [2024-11-01 19:25:07,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:25:07,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212406728] [2024-11-01 19:25:07,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:25:07,461 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:25:07,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:25:07,462 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:25:07,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Waiting until timeout for monitored process [2024-11-01 19:25:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:25:07,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 19:25:07,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:25:08,663 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-01 19:25:08,663 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:25:09,117 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-01 19:25:09,117 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:25:09,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212406728] [2024-11-01 19:25:09,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [212406728] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:25:09,118 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:25:09,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2024-11-01 19:25:09,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477311489] [2024-11-01 19:25:09,118 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:25:09,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 19:25:09,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:25:09,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 19:25:09,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 19:25:09,119 INFO L87 Difference]: Start difference. First operand 1255 states and 1663 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 19:25:09,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:25:09,230 INFO L93 Difference]: Finished difference Result 2445 states and 3250 transitions. [2024-11-01 19:25:09,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 19:25:09,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 61 [2024-11-01 19:25:09,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:25:09,247 INFO L225 Difference]: With dead ends: 2445 [2024-11-01 19:25:09,247 INFO L226 Difference]: Without dead ends: 2436 [2024-11-01 19:25:09,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 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 19:25:09,250 INFO L432 NwaCegarLoop]: 593 mSDtfsCounter, 532 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 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, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 19:25:09,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 1143 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 19:25:09,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2436 states. [2024-11-01 19:25:09,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 2436. [2024-11-01 19:25:09,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2436 states, 1872 states have (on average 1.2713675213675213) internal successors, (2380), 1915 states have internal predecessors, (2380), 429 states have call successors, (429), 135 states have call predecessors, (429), 134 states have return successors, (427), 427 states have call predecessors, (427), 427 states have call successors, (427) [2024-11-01 19:25:09,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2436 states to 2436 states and 3236 transitions. [2024-11-01 19:25:09,369 INFO L78 Accepts]: Start accepts. Automaton has 2436 states and 3236 transitions. Word has length 61 [2024-11-01 19:25:09,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:25:09,369 INFO L471 AbstractCegarLoop]: Abstraction has 2436 states and 3236 transitions. [2024-11-01 19:25:09,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 19:25:09,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2436 states and 3236 transitions. [2024-11-01 19:25:09,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-01 19:25:09,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:25:09,376 INFO L215 NwaCegarLoop]: trace histogram [12, 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, 1, 1] [2024-11-01 19:25:09,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Ended with exit code 0 [2024-11-01 19:25:09,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:25:09,581 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:25:09,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:25:09,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1251422783, now seen corresponding path program 1 times [2024-11-01 19:25:09,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:25:09,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [788491533] [2024-11-01 19:25:09,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:25:09,582 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:25:09,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:25:09,584 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:25:09,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Waiting until timeout for monitored process [2024-11-01 19:25:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:25:10,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-01 19:25:10,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:25:10,335 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-01 19:25:10,336 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:25:10,839 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-01 19:25:10,839 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:25:10,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [788491533] [2024-11-01 19:25:10,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [788491533] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:25:10,840 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:25:10,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-01 19:25:10,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809535366] [2024-11-01 19:25:10,840 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:25:10,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-01 19:25:10,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:25:10,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-01 19:25:10,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-01 19:25:10,842 INFO L87 Difference]: Start difference. First operand 2436 states and 3236 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 19:25:11,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:25:11,120 INFO L93 Difference]: Finished difference Result 6897 states and 9162 transitions. [2024-11-01 19:25:11,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-01 19:25:11,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 122 [2024-11-01 19:25:11,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:25:11,158 INFO L225 Difference]: With dead ends: 6897 [2024-11-01 19:25:11,158 INFO L226 Difference]: Without dead ends: 4502 [2024-11-01 19:25:11,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 241 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 19:25:11,172 INFO L432 NwaCegarLoop]: 594 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, 1149 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 19:25:11,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1149 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-01 19:25:11,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4502 states. [2024-11-01 19:25:11,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4502 to 4494. [2024-11-01 19:25:11,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4494 states, 3438 states have (on average 1.2705061082024434) internal successors, (4368), 3523 states have internal predecessors, (4368), 795 states have call successors, (795), 261 states have call predecessors, (795), 260 states have return successors, (793), 793 states have call predecessors, (793), 793 states have call successors, (793) [2024-11-01 19:25:11,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4494 states to 4494 states and 5956 transitions. [2024-11-01 19:25:11,420 INFO L78 Accepts]: Start accepts. Automaton has 4494 states and 5956 transitions. Word has length 122 [2024-11-01 19:25:11,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:25:11,420 INFO L471 AbstractCegarLoop]: Abstraction has 4494 states and 5956 transitions. [2024-11-01 19:25:11,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 19:25:11,421 INFO L276 IsEmpty]: Start isEmpty. Operand 4494 states and 5956 transitions. [2024-11-01 19:25:11,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-01 19:25:11,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:25:11,431 INFO L215 NwaCegarLoop]: trace histogram [12, 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 19:25:11,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Forceful destruction successful, exit code 0 [2024-11-01 19:25:11,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:25:11,632 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:25:11,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:25:11,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1818712957, now seen corresponding path program 1 times [2024-11-01 19:25:11,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:25:11,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649749178] [2024-11-01 19:25:11,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:25:11,633 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:25:11,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:25:11,634 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:25:11,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (10)] Waiting until timeout for monitored process [2024-11-01 19:25:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:25:12,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 868 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-01 19:25:12,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:25:12,707 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-01 19:25:12,708 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:25:13,664 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-01 19:25:13,664 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:25:13,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649749178] [2024-11-01 19:25:13,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [649749178] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:25:13,665 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:25:13,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 19:25:13,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625250958] [2024-11-01 19:25:13,665 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:25:13,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 19:25:13,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:25:13,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 19:25:13,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 19:25:13,667 INFO L87 Difference]: Start difference. First operand 4494 states and 5956 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-01 19:25:17,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-01 19:25:21,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-01 19:25:22,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:25:22,004 INFO L93 Difference]: Finished difference Result 7848 states and 10406 transitions. [2024-11-01 19:25:22,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-01 19:25:22,004 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 165 [2024-11-01 19:25:22,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:25:22,036 INFO L225 Difference]: With dead ends: 7848 [2024-11-01 19:25:22,036 INFO L226 Difference]: Without dead ends: 3387 [2024-11-01 19:25:22,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 324 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 19:25:22,056 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, 8.2s IncrementalHoareTripleChecker+Time [2024-11-01 19:25:22,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2893 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2024-11-01 19:25:22,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3387 states. [2024-11-01 19:25:22,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3387 to 3362. [2024-11-01 19:25:22,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3362 states, 2568 states have (on average 1.2686915887850467) internal successors, (3258), 2632 states have internal predecessors, (3258), 596 states have call successors, (596), 198 states have call predecessors, (596), 197 states have return successors, (594), 594 states have call predecessors, (594), 594 states have call successors, (594) [2024-11-01 19:25:22,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3362 states to 3362 states and 4448 transitions. [2024-11-01 19:25:22,207 INFO L78 Accepts]: Start accepts. Automaton has 3362 states and 4448 transitions. Word has length 165 [2024-11-01 19:25:22,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:25:22,208 INFO L471 AbstractCegarLoop]: Abstraction has 3362 states and 4448 transitions. [2024-11-01 19:25:22,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-01 19:25:22,209 INFO L276 IsEmpty]: Start isEmpty. Operand 3362 states and 4448 transitions. [2024-11-01 19:25:22,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-01 19:25:22,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:25:22,216 INFO L215 NwaCegarLoop]: trace histogram [12, 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, 1] [2024-11-01 19:25:22,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (10)] Forceful destruction successful, exit code 0 [2024-11-01 19:25:22,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:25:22,416 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:25:22,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:25:22,417 INFO L85 PathProgramCache]: Analyzing trace with hash -2055869236, now seen corresponding path program 1 times [2024-11-01 19:25:22,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:25:22,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [994768559] [2024-11-01 19:25:22,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:25:22,418 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:25:22,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:25:22,420 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:25:22,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (11)] Waiting until timeout for monitored process [2024-11-01 19:25:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 19:25:23,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-01 19:25:23,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 19:25:23,276 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-01 19:25:23,276 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 19:25:24,186 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-01 19:25:24,186 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 19:25:24,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [994768559] [2024-11-01 19:25:24,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [994768559] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 19:25:24,186 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 19:25:24,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2024-11-01 19:25:24,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787755654] [2024-11-01 19:25:24,186 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 19:25:24,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-01 19:25:24,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 19:25:24,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-01 19:25:24,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-01 19:25:24,188 INFO L87 Difference]: Start difference. First operand 3362 states and 4448 transitions. Second operand has 8 states, 8 states have (on average 12.375) internal successors, (99), 6 states have internal predecessors, (99), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-01 19:25:24,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 19:25:24,480 INFO L93 Difference]: Finished difference Result 6364 states and 8486 transitions. [2024-11-01 19:25:24,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-01 19:25:24,481 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 6 states have internal predecessors, (99), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 166 [2024-11-01 19:25:24,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 19:25:24,505 INFO L225 Difference]: With dead ends: 6364 [2024-11-01 19:25:24,506 INFO L226 Difference]: Without dead ends: 3380 [2024-11-01 19:25:24,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-01 19:25:24,516 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 0 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2886 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-01 19:25:24,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2886 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-01 19:25:24,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3380 states. [2024-11-01 19:25:24,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3380 to 3366. [2024-11-01 19:25:24,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3366 states, 2570 states have (on average 1.2684824902723735) internal successors, (3260), 2636 states have internal predecessors, (3260), 596 states have call successors, (596), 198 states have call predecessors, (596), 199 states have return successors, (610), 594 states have call predecessors, (610), 594 states have call successors, (610) [2024-11-01 19:25:24,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3366 states to 3366 states and 4466 transitions. [2024-11-01 19:25:24,664 INFO L78 Accepts]: Start accepts. Automaton has 3366 states and 4466 transitions. Word has length 166 [2024-11-01 19:25:24,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 19:25:24,664 INFO L471 AbstractCegarLoop]: Abstraction has 3366 states and 4466 transitions. [2024-11-01 19:25:24,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.375) internal successors, (99), 6 states have internal predecessors, (99), 2 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-01 19:25:24,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3366 states and 4466 transitions. [2024-11-01 19:25:24,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-01 19:25:24,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 19:25:24,672 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 19:25:24,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (11)] Ended with exit code 0 [2024-11-01 19:25:24,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:25:24,873 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 19:25:24,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 19:25:24,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1280871145, now seen corresponding path program 1 times [2024-11-01 19:25:24,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 19:25:24,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116437188] [2024-11-01 19:25:24,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 19:25:24,873 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 19:25:24,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:25:24,875 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 19:25:24,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (12)] Waiting until timeout for monitored process [2024-11-01 19:25:25,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (12)] Forceful destruction successful, exit code 0 [2024-11-01 19:25:25,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 19:25:25,703 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (12) with exit command (exit)) Unexpected Exception while parsing No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:88) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:128) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:113) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (12) with exit command (exit)) Unexpected Exception while parsing No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:271) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 29 more Caused by: java.lang.Exception: Can't recover from previous error(s) at com.github.jhoenicke.javacup.runtime.LRParser.report_fatal_error(LRParser.java:281) at com.github.jhoenicke.javacup.runtime.LRParser.unrecovered_syntax_error(LRParser.java:330) at com.github.jhoenicke.javacup.runtime.LRParser.error_recovery(LRParser.java:624) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:401) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 36 more [2024-11-01 19:25:25,706 INFO L158 Benchmark]: Toolchain (without parser) took 48028.09ms. Allocated memory was 183.5MB in the beginning and 371.2MB in the end (delta: 187.7MB). Free memory was 133.0MB in the beginning and 286.3MB in the end (delta: -153.4MB). Peak memory consumption was 235.4MB. Max. memory is 8.0GB. [2024-11-01 19:25:25,706 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory was 158.9MB in the beginning and 158.8MB in the end (delta: 141.7kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 19:25:25,706 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1361.15ms. Allocated memory was 183.5MB in the beginning and 272.6MB in the end (delta: 89.1MB). Free memory was 132.5MB in the beginning and 232.1MB in the end (delta: -99.6MB). Peak memory consumption was 105.3MB. Max. memory is 8.0GB. [2024-11-01 19:25:25,707 INFO L158 Benchmark]: Boogie Procedure Inliner took 174.74ms. Allocated memory is still 272.6MB. Free memory was 232.1MB in the beginning and 221.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2024-11-01 19:25:25,707 INFO L158 Benchmark]: Boogie Preprocessor took 391.99ms. Allocated memory is still 272.6MB. Free memory was 221.2MB in the beginning and 220.5MB in the end (delta: 645.1kB). Peak memory consumption was 53.6MB. Max. memory is 8.0GB. [2024-11-01 19:25:25,707 INFO L158 Benchmark]: RCFGBuilder took 7995.12ms. Allocated memory is still 272.6MB. Free memory was 220.5MB in the beginning and 193.8MB in the end (delta: 26.7MB). Peak memory consumption was 105.4MB. Max. memory is 8.0GB. [2024-11-01 19:25:25,707 INFO L158 Benchmark]: TraceAbstraction took 38098.39ms. Allocated memory was 272.6MB in the beginning and 371.2MB in the end (delta: 98.6MB). Free memory was 193.2MB in the beginning and 286.3MB in the end (delta: -93.1MB). Peak memory consumption was 206.0MB. Max. memory is 8.0GB. [2024-11-01 19:25:25,710 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory was 158.9MB in the beginning and 158.8MB in the end (delta: 141.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1361.15ms. Allocated memory was 183.5MB in the beginning and 272.6MB in the end (delta: 89.1MB). Free memory was 132.5MB in the beginning and 232.1MB in the end (delta: -99.6MB). Peak memory consumption was 105.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 174.74ms. Allocated memory is still 272.6MB. Free memory was 232.1MB in the beginning and 221.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 391.99ms. Allocated memory is still 272.6MB. Free memory was 221.2MB in the beginning and 220.5MB in the end (delta: 645.1kB). Peak memory consumption was 53.6MB. Max. memory is 8.0GB. * RCFGBuilder took 7995.12ms. Allocated memory is still 272.6MB. Free memory was 220.5MB in the beginning and 193.8MB in the end (delta: 26.7MB). Peak memory consumption was 105.4MB. Max. memory is 8.0GB. * TraceAbstraction took 38098.39ms. Allocated memory was 272.6MB in the beginning and 371.2MB in the end (delta: 98.6MB). Free memory was 193.2MB in the beginning and 286.3MB in the end (delta: -93.1MB). Peak memory consumption was 206.0MB. 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: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (12) with exit command (exit)) Unexpected Exception while parsing No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (12) with exit command (exit)) Unexpected Exception while parsing No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-01 19:25:25,760 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...