./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 62cb578dfe3af17ed98c8454048d798a874692901bcf05dac12a80fa481c23e6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:27:32,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:27:32,429 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:27:32,437 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:27:32,438 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:27:32,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:27:32,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:27:32,485 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:27:32,486 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:27:32,488 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:27:32,489 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:27:32,490 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:27:32,491 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:27:32,496 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:27:32,497 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:27:32,498 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:27:32,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:27:32,500 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:27:32,501 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:27:32,501 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:27:32,501 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:27:32,502 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:27:32,504 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:27:32,505 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:27:32,505 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:27:32,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:27:32,506 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:27:32,507 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:27:32,507 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:27:32,508 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:27:32,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:27:32,509 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:27:32,510 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:27:32,510 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:27:32,510 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:27:32,510 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:27:32,511 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62cb578dfe3af17ed98c8454048d798a874692901bcf05dac12a80fa481c23e6 [2023-11-12 02:27:32,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:27:32,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:27:32,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:27:32,820 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:27:32,821 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:27:32,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/ldv-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i [2023-11-12 02:27:36,003 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:27:36,527 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:27:36,528 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/sv-benchmarks/c/ldv-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i [2023-11-12 02:27:36,571 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/data/ef23cc1ce/33ee0337e0f84ba6ae470561e1d81e0e/FLAGed306dbf0 [2023-11-12 02:27:36,594 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/data/ef23cc1ce/33ee0337e0f84ba6ae470561e1d81e0e [2023-11-12 02:27:36,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:27:36,602 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:27:36,606 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:36,607 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:27:36,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:27:36,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:36" (1/1) ... [2023-11-12 02:27:36,615 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c85853b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:36, skipping insertion in model container [2023-11-12 02:27:36,615 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:27:36" (1/1) ... [2023-11-12 02:27:36,745 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:27:38,225 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/sv-benchmarks/c/ldv-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i[176586,176599] [2023-11-12 02:27:38,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:38,307 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:27:38,390 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsf %1,%0": "=r" (word): "r" (~ word)); [2784] [2023-11-12 02:27:38,416 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" ((module->refptr)->incs)); [3206] [2023-11-12 02:27:38,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" ((module->refptr)->incs)); [3209] [2023-11-12 02:27:38,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" ((module->refptr)->incs): "qi" (1U)); [3211] [2023-11-12 02:27:38,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" ((module->refptr)->incs)); [3216] [2023-11-12 02:27:38,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" ((module->refptr)->incs)); [3219] [2023-11-12 02:27:38,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" ((module->refptr)->incs): "ri" (1U)); [3221] [2023-11-12 02:27:38,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" ((module->refptr)->incs)); [3226] [2023-11-12 02:27:38,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" ((module->refptr)->incs)); [3229] [2023-11-12 02:27:38,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" ((module->refptr)->incs): "ri" (1U)); [3231] [2023-11-12 02:27:38,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" ((module->refptr)->incs)); [3236] [2023-11-12 02:27:38,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" ((module->refptr)->incs)); [3239] [2023-11-12 02:27:38,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" ((module->refptr)->incs): "re" (1U)); [3241] [2023-11-12 02:27:38,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" ((module->refptr)->incs)); [3254] [2023-11-12 02:27:38,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" ((module->refptr)->incs)); [3257] [2023-11-12 02:27:38,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" ((module->refptr)->incs): "qi" (1U)); [3259] [2023-11-12 02:27:38,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" ((module->refptr)->incs)); [3264] [2023-11-12 02:27:38,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" ((module->refptr)->incs)); [3267] [2023-11-12 02:27:38,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" ((module->refptr)->incs): "ri" (1U)); [3269] [2023-11-12 02:27:38,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" ((module->refptr)->incs)); [3274] [2023-11-12 02:27:38,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" ((module->refptr)->incs)); [3277] [2023-11-12 02:27:38,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" ((module->refptr)->incs): "ri" (1U)); [3279] [2023-11-12 02:27:38,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" ((module->refptr)->incs)); [3284] [2023-11-12 02:27:38,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" ((module->refptr)->incs)); [3287] [2023-11-12 02:27:38,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" ((module->refptr)->incs): "re" (1U)); [3289] [2023-11-12 02:27:38,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" ((module->refptr)->incs)); [3302] [2023-11-12 02:27:38,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" ((module->refptr)->incs)); [3305] [2023-11-12 02:27:38,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" ((module->refptr)->incs): "qi" (1U)); [3307] [2023-11-12 02:27:38,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" ((module->refptr)->incs)); [3312] [2023-11-12 02:27:38,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" ((module->refptr)->incs)); [3315] [2023-11-12 02:27:38,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" ((module->refptr)->incs): "ri" (1U)); [3317] [2023-11-12 02:27:38,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" ((module->refptr)->incs)); [3322] [2023-11-12 02:27:38,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" ((module->refptr)->incs)); [3325] [2023-11-12 02:27:38,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" ((module->refptr)->incs): "ri" (1U)); [3327] [2023-11-12 02:27:38,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" ((module->refptr)->incs)); [3332] [2023-11-12 02:27:38,432 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" ((module->refptr)->incs)); [3335] [2023-11-12 02:27:38,433 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" ((module->refptr)->incs): "re" (1U)); [3337] [2023-11-12 02:27:38,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" ((module->refptr)->incs)); [3350] [2023-11-12 02:27:38,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" ((module->refptr)->incs)); [3353] [2023-11-12 02:27:38,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" ((module->refptr)->incs): "qi" (1U)); [3355] [2023-11-12 02:27:38,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" ((module->refptr)->incs)); [3360] [2023-11-12 02:27:38,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" ((module->refptr)->incs)); [3363] [2023-11-12 02:27:38,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" ((module->refptr)->incs): "ri" (1U)); [3365] [2023-11-12 02:27:38,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" ((module->refptr)->incs)); [3370] [2023-11-12 02:27:38,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" ((module->refptr)->incs)); [3373] [2023-11-12 02:27:38,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" ((module->refptr)->incs): "ri" (1U)); [3375] [2023-11-12 02:27:38,438 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" ((module->refptr)->incs)); [3380] [2023-11-12 02:27:38,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" ((module->refptr)->incs)); [3383] [2023-11-12 02:27:38,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" ((module->refptr)->incs): "re" (1U)); [3385] [2023-11-12 02:27:38,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_1": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [3978] [2023-11-12 02:27:38,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_2": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [3981] [2023-11-12 02:27:38,611 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_4": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [3984] [2023-11-12 02:27:38,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_8": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [3987] [2023-11-12 02:27:38,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_X": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [3990] [2023-11-12 02:27:38,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [4008] [2023-11-12 02:27:38,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [4011] [2023-11-12 02:27:38,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [4014] [2023-11-12 02:27:38,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [4017] [2023-11-12 02:27:38,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [4020] [2023-11-12 02:27:38,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [4030-4031] [2023-11-12 02:27:38,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [4034-4035] [2023-11-12 02:27:38,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [4038-4039] [2023-11-12 02:27:38,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [4042-4043] [2023-11-12 02:27:38,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [4046-4047] [2023-11-12 02:27:38,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [4057-4058] [2023-11-12 02:27:38,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [4061-4062] [2023-11-12 02:27:38,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [4065-4066] [2023-11-12 02:27:38,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [4069-4070] [2023-11-12 02:27:38,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [4073-4074] [2023-11-12 02:27:38,621 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [4089-4090] [2023-11-12 02:27:38,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [4093-4094] [2023-11-12 02:27:38,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [4097-4098] [2023-11-12 02:27:38,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [4101-4102] [2023-11-12 02:27:38,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [4105-4106] [2023-11-12 02:27:38,624 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___3): "0" (__pu_val___3), "c" (p): "ebx"); [4121-4122] [2023-11-12 02:27:38,624 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___3): "0" (__pu_val___3), "c" (p): "ebx"); [4125-4126] [2023-11-12 02:27:38,624 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___3): "0" (__pu_val___3), "c" (p): "ebx"); [4129-4130] [2023-11-12 02:27:38,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___3): "0" (__pu_val___3), "c" (p): "ebx"); [4133-4134] [2023-11-12 02:27:38,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___3): "0" (__pu_val___3), "c" (p): "ebx"); [4137-4138] [2023-11-12 02:27:38,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___4): "0" (__pu_val___4), "c" (p): "ebx"); [4153-4154] [2023-11-12 02:27:38,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___4): "0" (__pu_val___4), "c" (p): "ebx"); [4157-4158] [2023-11-12 02:27:38,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___4): "0" (__pu_val___4), "c" (p): "ebx"); [4161-4162] [2023-11-12 02:27:38,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___4): "0" (__pu_val___4), "c" (p): "ebx"); [4165-4166] [2023-11-12 02:27:38,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___4): "0" (__pu_val___4), "c" (p): "ebx"); [4169-4170] [2023-11-12 02:27:38,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___5): "0" (__pu_val___5), "c" (p): "ebx"); [4185-4186] [2023-11-12 02:27:38,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___5): "0" (__pu_val___5), "c" (p): "ebx"); [4189-4190] [2023-11-12 02:27:38,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___5): "0" (__pu_val___5), "c" (p): "ebx"); [4193-4194] [2023-11-12 02:27:38,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___5): "0" (__pu_val___5), "c" (p): "ebx"); [4197-4198] [2023-11-12 02:27:38,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___5): "0" (__pu_val___5), "c" (p): "ebx"); [4201-4202] [2023-11-12 02:27:38,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___6): "0" (__pu_val___6), "c" (p): "ebx"); [4217-4218] [2023-11-12 02:27:38,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___6): "0" (__pu_val___6), "c" (p): "ebx"); [4221-4222] [2023-11-12 02:27:38,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___6): "0" (__pu_val___6), "c" (p): "ebx"); [4225-4226] [2023-11-12 02:27:38,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___6): "0" (__pu_val___6), "c" (p): "ebx"); [4229-4230] [2023-11-12 02:27:38,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___6): "0" (__pu_val___6), "c" (p): "ebx"); [4233-4234] [2023-11-12 02:27:38,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_1": "=a" (__ret_gu___0), "=d" (__val_gu___0): "0" (p)); [4246] [2023-11-12 02:27:38,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_2": "=a" (__ret_gu___0), "=d" (__val_gu___0): "0" (p)); [4249] [2023-11-12 02:27:38,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_4": "=a" (__ret_gu___0), "=d" (__val_gu___0): "0" (p)); [4252] [2023-11-12 02:27:38,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_8": "=a" (__ret_gu___0), "=d" (__val_gu___0): "0" (p)); [4255] [2023-11-12 02:27:38,637 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_X": "=a" (__ret_gu___0), "=d" (__val_gu___0): "0" (p)); [4258] [2023-11-12 02:27:38,638 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___7): "0" (__pu_val___7), "c" (p): "ebx"); [4276-4277] [2023-11-12 02:27:38,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___7): "0" (__pu_val___7), "c" (p): "ebx"); [4280-4281] [2023-11-12 02:27:38,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___7): "0" (__pu_val___7), "c" (p): "ebx"); [4284-4285] [2023-11-12 02:27:38,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___7): "0" (__pu_val___7), "c" (p): "ebx"); [4288-4289] [2023-11-12 02:27:38,641 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___7): "0" (__pu_val___7), "c" (p): "ebx"); [4292-4293] [2023-11-12 02:27:38,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___8): "0" (__pu_val___8), "c" (p): "ebx"); [4309-4310] [2023-11-12 02:27:38,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___8): "0" (__pu_val___8), "c" (p): "ebx"); [4313-4314] [2023-11-12 02:27:38,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___8): "0" (__pu_val___8), "c" (p): "ebx"); [4317-4318] [2023-11-12 02:27:38,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___8): "0" (__pu_val___8), "c" (p): "ebx"); [4321-4322] [2023-11-12 02:27:38,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___8): "0" (__pu_val___8), "c" (p): "ebx"); [4325-4326] [2023-11-12 02:27:38,775 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/sv-benchmarks/c/ldv-commit-tester/m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i[176586,176599] [2023-11-12 02:27:38,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:27:38,853 WARN L672 CHandler]: The function __bad_size_call_parameter is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:38,853 WARN L672 CHandler]: The function kmem_cache_alloc_notrace is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:38,854 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:38,855 WARN L672 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:27:38,863 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:27:38,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:38 WrapperNode [2023-11-12 02:27:38,863 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:27:38,865 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:38,865 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:27:38,865 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:27:38,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:38" (1/1) ... [2023-11-12 02:27:38,969 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:38" (1/1) ... [2023-11-12 02:27:39,170 INFO L138 Inliner]: procedures = 186, calls = 1575, calls flagged for inlining = 91, calls inlined = 88, statements flattened = 4670 [2023-11-12 02:27:39,171 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:27:39,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:27:39,173 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:27:39,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:27:39,183 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:38" (1/1) ... [2023-11-12 02:27:39,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:38" (1/1) ... [2023-11-12 02:27:39,217 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:38" (1/1) ... [2023-11-12 02:27:39,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:38" (1/1) ... [2023-11-12 02:27:39,343 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:38" (1/1) ... [2023-11-12 02:27:39,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:38" (1/1) ... [2023-11-12 02:27:39,400 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:38" (1/1) ... [2023-11-12 02:27:39,417 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:38" (1/1) ... [2023-11-12 02:27:39,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:27:39,444 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:27:39,444 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:27:39,445 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:27:39,445 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:38" (1/1) ... [2023-11-12 02:27:39,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:27:39,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:39,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:27:39,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:27:39,523 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_get_volume1_sw [2023-11-12 02:27:39,523 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_get_volume1_sw [2023-11-12 02:27:39,524 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_file_remove [2023-11-12 02:27:39,524 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_file_remove [2023-11-12 02:27:39,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:27:39,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-12 02:27:39,524 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-12 02:27:39,524 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_get_recsrc2 [2023-11-12 02:27:39,524 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_get_recsrc2 [2023-11-12 02:27:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ctl_find_numid [2023-11-12 02:27:39,525 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ctl_find_numid [2023-11-12 02:27:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_conv [2023-11-12 02:27:39,525 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_conv [2023-11-12 02:27:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:27:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-12 02:27:39,526 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-12 02:27:39,526 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_build_input [2023-11-12 02:27:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_build_input [2023-11-12 02:27:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:27:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:27:39,527 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2023-11-12 02:27:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 02:27:39,528 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 02:27:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_test_id [2023-11-12 02:27:39,528 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_test_id [2023-11-12 02:27:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:27:39,528 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-12 02:27:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-12 02:27:39,529 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-11-12 02:27:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-11-12 02:27:39,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 02:27:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 02:27:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_get_volume1_vol [2023-11-12 02:27:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_get_volume1_vol [2023-11-12 02:27:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure snd_info_free_entry [2023-11-12 02:27:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_info_free_entry [2023-11-12 02:27:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:27:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:27:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 02:27:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 02:27:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_release [2023-11-12 02:27:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_release [2023-11-12 02:27:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:27:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_conv2 [2023-11-12 02:27:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_conv2 [2023-11-12 02:27:39,532 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_conv1 [2023-11-12 02:27:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_conv1 [2023-11-12 02:27:39,532 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2023-11-12 02:27:39,532 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2023-11-12 02:27:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2023-11-12 02:27:39,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:27:39,533 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2023-11-12 02:27:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2023-11-12 02:27:39,533 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-11-12 02:27:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-11-12 02:27:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:27:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:27:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-12 02:27:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-12 02:27:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure mixer_slot_clear [2023-11-12 02:27:39,534 INFO L138 BoogieDeclarations]: Found implementation of procedure mixer_slot_clear [2023-11-12 02:27:39,535 INFO L130 BoogieDeclarations]: Found specification of procedure snd_ctl_notify [2023-11-12 02:27:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_ctl_notify [2023-11-12 02:27:39,535 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:27:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-12 02:27:39,535 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_ioctl1 [2023-11-12 02:27:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_ioctl1 [2023-11-12 02:27:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2023-11-12 02:27:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2023-11-12 02:27:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_down_read_controls_rwsem_of_snd_card [2023-11-12 02:27:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_down_read_controls_rwsem_of_snd_card [2023-11-12 02:27:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:27:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2023-11-12 02:27:39,537 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2023-11-12 02:27:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-12 02:27:39,537 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-12 02:27:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_put_volume1_sw [2023-11-12 02:27:39,538 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_put_volume1_sw [2023-11-12 02:27:39,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_up_read_controls_rwsem_of_snd_card [2023-11-12 02:27:39,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_up_read_controls_rwsem_of_snd_card [2023-11-12 02:27:39,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:27:39,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:27:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_build_test [2023-11-12 02:27:39,539 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_build_test [2023-11-12 02:27:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure trace_kmalloc [2023-11-12 02:27:39,539 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_kmalloc [2023-11-12 02:27:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-12 02:27:39,539 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-12 02:27:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure snd_oss_info_register [2023-11-12 02:27:39,540 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_oss_info_register [2023-11-12 02:27:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_put_volume1_vol [2023-11-12 02:27:39,540 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_put_volume1_vol [2023-11-12 02:27:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_notify_handler [2023-11-12 02:27:39,540 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_notify_handler [2023-11-12 02:27:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 02:27:39,541 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 02:27:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 02:27:39,541 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 02:27:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 02:27:39,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-12 02:27:39,542 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_dereference [2023-11-12 02:27:39,542 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_dereference [2023-11-12 02:27:39,542 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2023-11-12 02:27:39,542 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2023-11-12 02:27:39,542 INFO L130 BoogieDeclarations]: Found specification of procedure snd_mixer_oss_open [2023-11-12 02:27:39,543 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_mixer_oss_open [2023-11-12 02:27:39,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:27:39,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-12 02:27:39,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-12 02:27:39,543 INFO L130 BoogieDeclarations]: Found specification of procedure __snd_printk [2023-11-12 02:27:39,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __snd_printk [2023-11-12 02:27:39,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:27:39,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:27:40,052 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:27:40,056 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:27:51,737 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:27:51,761 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:27:51,761 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:27:51,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:51 BoogieIcfgContainer [2023-11-12 02:27:51,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:27:51,770 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:27:51,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:27:51,773 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:27:51,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:27:36" (1/3) ... [2023-11-12 02:27:51,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7da30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:27:51, skipping insertion in model container [2023-11-12 02:27:51,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:27:38" (2/3) ... [2023-11-12 02:27:51,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7da30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:27:51, skipping insertion in model container [2023-11-12 02:27:51,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:27:51" (3/3) ... [2023-11-12 02:27:51,778 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_sound-core-oss-snd-mixer-oss-ko--143_7a--506218e.i [2023-11-12 02:27:51,797 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:27:51,798 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:27:51,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:27:51,915 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3068fbdf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:27:51,916 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:27:51,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 1322 states, 1012 states have (on average 1.5088932806324111) internal successors, (1527), 1033 states have internal predecessors, (1527), 260 states have call successors, (260), 48 states have call predecessors, (260), 48 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) [2023-11-12 02:27:51,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:27:51,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:51,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:51,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:51,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:51,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1807153312, now seen corresponding path program 1 times [2023-11-12 02:27:51,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:51,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183024487] [2023-11-12 02:27:51,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:51,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:27:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:52,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:52,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:52,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183024487] [2023-11-12 02:27:52,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183024487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:52,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:52,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:27:52,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303582099] [2023-11-12 02:27:52,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:52,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:27:52,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:52,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:27:52,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:27:52,670 INFO L87 Difference]: Start difference. First operand has 1322 states, 1012 states have (on average 1.5088932806324111) internal successors, (1527), 1033 states have internal predecessors, (1527), 260 states have call successors, (260), 48 states have call predecessors, (260), 48 states have return successors, (260), 260 states have call predecessors, (260), 260 states have call successors, (260) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:27:52,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:52,955 INFO L93 Difference]: Finished difference Result 2580 states and 4118 transitions. [2023-11-12 02:27:52,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:27:52,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-11-12 02:27:52,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:52,996 INFO L225 Difference]: With dead ends: 2580 [2023-11-12 02:27:52,996 INFO L226 Difference]: Without dead ends: 1259 [2023-11-12 02:27:53,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:27:53,020 INFO L413 NwaCegarLoop]: 1925 mSDtfsCounter, 5 mSDsluCounter, 1922 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3847 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:53,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3847 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:27:53,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2023-11-12 02:27:53,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1254. [2023-11-12 02:27:53,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 955 states have (on average 1.4921465968586387) internal successors, (1425), 972 states have internal predecessors, (1425), 252 states have call successors, (252), 47 states have call predecessors, (252), 46 states have return successors, (249), 249 states have call predecessors, (249), 249 states have call successors, (249) [2023-11-12 02:27:53,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1926 transitions. [2023-11-12 02:27:53,176 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1926 transitions. Word has length 14 [2023-11-12 02:27:53,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:53,176 INFO L495 AbstractCegarLoop]: Abstraction has 1254 states and 1926 transitions. [2023-11-12 02:27:53,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:27:53,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1926 transitions. [2023-11-12 02:27:53,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 02:27:53,179 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:53,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:53,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:27:53,180 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:53,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:53,181 INFO L85 PathProgramCache]: Analyzing trace with hash 217671179, now seen corresponding path program 1 times [2023-11-12 02:27:53,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:53,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146869904] [2023-11-12 02:27:53,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:53,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:53,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:27:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:53,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:53,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:53,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146869904] [2023-11-12 02:27:53,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146869904] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:27:53,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697098286] [2023-11-12 02:27:53,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:53,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:53,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:53,491 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:27:53,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:27:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:54,112 INFO L262 TraceCheckSpWp]: Trace formula consists of 1396 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:27:54,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:27:54,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:54,202 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:27:54,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:27:54,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697098286] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:27:54,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:27:54,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-12 02:27:54,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835839345] [2023-11-12 02:27:54,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:27:54,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:27:54,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:54,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:27:54,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:27:54,292 INFO L87 Difference]: Start difference. First operand 1254 states and 1926 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:27:54,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:54,550 INFO L93 Difference]: Finished difference Result 2514 states and 3863 transitions. [2023-11-12 02:27:54,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:27:54,551 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-12 02:27:54,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:54,567 INFO L225 Difference]: With dead ends: 2514 [2023-11-12 02:27:54,567 INFO L226 Difference]: Without dead ends: 1272 [2023-11-12 02:27:54,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:27:54,578 INFO L413 NwaCegarLoop]: 1921 mSDtfsCounter, 15 mSDsluCounter, 5755 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 7676 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:54,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 7676 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:27:54,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2023-11-12 02:27:54,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1272. [2023-11-12 02:27:54,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 970 states have (on average 1.4876288659793815) internal successors, (1443), 987 states have internal predecessors, (1443), 255 states have call successors, (255), 47 states have call predecessors, (255), 46 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2023-11-12 02:27:54,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1950 transitions. [2023-11-12 02:27:54,665 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1950 transitions. Word has length 18 [2023-11-12 02:27:54,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:54,666 INFO L495 AbstractCegarLoop]: Abstraction has 1272 states and 1950 transitions. [2023-11-12 02:27:54,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:27:54,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1950 transitions. [2023-11-12 02:27:54,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 02:27:54,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:54,676 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:54,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:27:54,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-12 02:27:54,884 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:54,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:54,885 INFO L85 PathProgramCache]: Analyzing trace with hash -418669236, now seen corresponding path program 2 times [2023-11-12 02:27:54,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:54,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256231703] [2023-11-12 02:27:54,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:54,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:55,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:27:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:55,165 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-12 02:27:55,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:55,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256231703] [2023-11-12 02:27:55,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256231703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:55,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:55,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:27:55,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601983971] [2023-11-12 02:27:55,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:55,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:27:55,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:55,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:27:55,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:27:55,169 INFO L87 Difference]: Start difference. First operand 1272 states and 1950 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:27:55,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:55,300 INFO L93 Difference]: Finished difference Result 1277 states and 1954 transitions. [2023-11-12 02:27:55,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:27:55,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2023-11-12 02:27:55,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:55,312 INFO L225 Difference]: With dead ends: 1277 [2023-11-12 02:27:55,312 INFO L226 Difference]: Without dead ends: 1272 [2023-11-12 02:27:55,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:27:55,315 INFO L413 NwaCegarLoop]: 1922 mSDtfsCounter, 75 mSDsluCounter, 3753 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 5675 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:55,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 5675 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:27:55,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2023-11-12 02:27:55,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1272. [2023-11-12 02:27:55,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 970 states have (on average 1.48659793814433) internal successors, (1442), 987 states have internal predecessors, (1442), 255 states have call successors, (255), 47 states have call predecessors, (255), 46 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2023-11-12 02:27:55,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1949 transitions. [2023-11-12 02:27:55,424 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1949 transitions. Word has length 30 [2023-11-12 02:27:55,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:55,425 INFO L495 AbstractCegarLoop]: Abstraction has 1272 states and 1949 transitions. [2023-11-12 02:27:55,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 02:27:55,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1949 transitions. [2023-11-12 02:27:55,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-12 02:27:55,428 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:55,428 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:27:55,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:27:55,429 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:55,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:55,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1156461736, now seen corresponding path program 1 times [2023-11-12 02:27:55,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:55,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253273265] [2023-11-12 02:27:55,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:55,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:55,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:27:55,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:55,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-12 02:27:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:55,732 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-12 02:27:55,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:55,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253273265] [2023-11-12 02:27:55,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253273265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:55,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:55,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:27:55,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002684289] [2023-11-12 02:27:55,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:55,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:27:55,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:55,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:27:55,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:27:55,743 INFO L87 Difference]: Start difference. First operand 1272 states and 1949 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:27:55,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:55,833 INFO L93 Difference]: Finished difference Result 1284 states and 1963 transitions. [2023-11-12 02:27:55,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:27:55,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 38 [2023-11-12 02:27:55,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:55,845 INFO L225 Difference]: With dead ends: 1284 [2023-11-12 02:27:55,846 INFO L226 Difference]: Without dead ends: 1278 [2023-11-12 02:27:55,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:27:55,854 INFO L413 NwaCegarLoop]: 1920 mSDtfsCounter, 5 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3837 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:55,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3837 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:27:55,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2023-11-12 02:27:55,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1273. [2023-11-12 02:27:55,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1273 states, 971 states have (on average 1.486096807415036) internal successors, (1443), 988 states have internal predecessors, (1443), 255 states have call successors, (255), 47 states have call predecessors, (255), 46 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2023-11-12 02:27:55,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1950 transitions. [2023-11-12 02:27:55,921 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 1950 transitions. Word has length 38 [2023-11-12 02:27:55,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:55,922 INFO L495 AbstractCegarLoop]: Abstraction has 1273 states and 1950 transitions. [2023-11-12 02:27:55,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:27:55,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 1950 transitions. [2023-11-12 02:27:55,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-12 02:27:55,926 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:55,927 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2023-11-12 02:27:55,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:27:55,927 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:55,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:55,928 INFO L85 PathProgramCache]: Analyzing trace with hash -283221939, now seen corresponding path program 1 times [2023-11-12 02:27:55,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:55,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901693713] [2023-11-12 02:27:55,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:55,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:56,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:27:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:56,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-12 02:27:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:27:56,226 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-12 02:27:56,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:27:56,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901693713] [2023-11-12 02:27:56,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901693713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:27:56,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:27:56,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:27:56,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579536017] [2023-11-12 02:27:56,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:27:56,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:27:56,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:27:56,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:27:56,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:27:56,232 INFO L87 Difference]: Start difference. First operand 1273 states and 1950 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:27:56,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:27:56,691 INFO L93 Difference]: Finished difference Result 2145 states and 3322 transitions. [2023-11-12 02:27:56,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:27:56,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2023-11-12 02:27:56,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:27:56,713 INFO L225 Difference]: With dead ends: 2145 [2023-11-12 02:27:56,714 INFO L226 Difference]: Without dead ends: 2138 [2023-11-12 02:27:56,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:27:56,716 INFO L413 NwaCegarLoop]: 1931 mSDtfsCounter, 1280 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1280 SdHoareTripleChecker+Valid, 3832 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:27:56,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1280 Valid, 3832 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:27:56,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2023-11-12 02:27:56,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2136. [2023-11-12 02:27:56,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2136 states, 1670 states have (on average 1.4982035928143713) internal successors, (2502), 1700 states have internal predecessors, (2502), 386 states have call successors, (386), 82 states have call predecessors, (386), 79 states have return successors, (424), 376 states have call predecessors, (424), 383 states have call successors, (424) [2023-11-12 02:27:56,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 3312 transitions. [2023-11-12 02:27:56,861 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 3312 transitions. Word has length 42 [2023-11-12 02:27:56,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:27:56,863 INFO L495 AbstractCegarLoop]: Abstraction has 2136 states and 3312 transitions. [2023-11-12 02:27:56,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:27:56,864 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 3312 transitions. [2023-11-12 02:27:56,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-12 02:27:56,871 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:27:56,872 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-12 02:27:56,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:27:56,872 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:27:56,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:27:56,873 INFO L85 PathProgramCache]: Analyzing trace with hash -442219134, now seen corresponding path program 1 times [2023-11-12 02:27:56,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:27:56,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943092446] [2023-11-12 02:27:56,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:56,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:27:58,376 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:27:58,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [204043933] [2023-11-12 02:27:58,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:27:58,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:27:58,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:27:58,378 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:27:58,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:28:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:01,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 3194 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:28:01,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:28:01,103 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-12 02:28:01,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:28:01,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:01,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943092446] [2023-11-12 02:28:01,105 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:28:01,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204043933] [2023-11-12 02:28:01,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204043933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:28:01,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:28:01,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:28:01,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496595253] [2023-11-12 02:28:01,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:28:01,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:28:01,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:01,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:28:01,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:28:01,109 INFO L87 Difference]: Start difference. First operand 2136 states and 3312 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-12 02:28:03,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 02:28:03,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:28:03,278 INFO L93 Difference]: Finished difference Result 4267 states and 6637 transitions. [2023-11-12 02:28:03,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:28:03,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2023-11-12 02:28:03,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:28:03,347 INFO L225 Difference]: With dead ends: 4267 [2023-11-12 02:28:03,349 INFO L226 Difference]: Without dead ends: 2140 [2023-11-12 02:28:03,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:28:03,361 INFO L413 NwaCegarLoop]: 1922 mSDtfsCounter, 1 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3841 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:28:03,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3841 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2023-11-12 02:28:03,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2023-11-12 02:28:03,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2138. [2023-11-12 02:28:03,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2138 states, 1672 states have (on average 1.4976076555023923) internal successors, (2504), 1702 states have internal predecessors, (2504), 386 states have call successors, (386), 82 states have call predecessors, (386), 79 states have return successors, (424), 376 states have call predecessors, (424), 383 states have call successors, (424) [2023-11-12 02:28:03,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2138 states to 2138 states and 3314 transitions. [2023-11-12 02:28:03,482 INFO L78 Accepts]: Start accepts. Automaton has 2138 states and 3314 transitions. Word has length 96 [2023-11-12 02:28:03,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:28:03,484 INFO L495 AbstractCegarLoop]: Abstraction has 2138 states and 3314 transitions. [2023-11-12 02:28:03,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-12 02:28:03,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2138 states and 3314 transitions. [2023-11-12 02:28:03,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-12 02:28:03,490 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:28:03,491 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 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] [2023-11-12 02:28:03,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:28:03,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-12 02:28:03,703 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:28:03,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:28:03,704 INFO L85 PathProgramCache]: Analyzing trace with hash 98965083, now seen corresponding path program 1 times [2023-11-12 02:28:03,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:28:03,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714649077] [2023-11-12 02:28:03,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:03,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:28:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:04,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:28:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:04,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-12 02:28:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:04,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-12 02:28:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:04,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-12 02:28:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:04,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-12 02:28:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:04,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-12 02:28:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:04,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-12 02:28:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:04,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:28:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:04,467 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:28:04,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:28:04,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714649077] [2023-11-12 02:28:04,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714649077] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:28:04,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854203899] [2023-11-12 02:28:04,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:28:04,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:28:04,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:28:04,470 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:28:04,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe68a2-6365-46b2-9315-03523ef22f01/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:28:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:28:05,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 1915 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:28:05,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:28:05,409 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:28:05,409 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:28:05,831 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-12 02:28:05,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854203899] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:28:05,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:28:05,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 15 [2023-11-12 02:28:05,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846211488] [2023-11-12 02:28:05,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:28:05,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-12 02:28:05,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:28:05,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-12 02:28:05,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=128, Unknown=0, NotChecked=0, Total=210 [2023-11-12 02:28:05,835 INFO L87 Difference]: Start difference. First operand 2138 states and 3314 transitions. Second operand has 15 states, 15 states have (on average 7.333333333333333) internal successors, (110), 13 states have internal predecessors, (110), 2 states have call successors, (22), 4 states have call predecessors, (22), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-12 02:28:09,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []