./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB --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 5bdb144d16ce690b0c83c76766410e2201d517c4cbaa861cb0d7e2bbbb9cb236 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:18:54,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:18:54,318 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-27 23:18:54,330 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:18:54,331 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:18:54,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:18:54,373 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:18:54,373 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:18:54,374 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:18:54,374 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:18:54,375 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:18:54,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:18:54,376 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:18:54,376 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:18:54,376 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:18:54,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:18:54,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:18:54,377 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:18:54,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:18:54,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:18:54,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:18:54,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:18:54,378 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:18:54,378 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:18:54,378 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:18:54,378 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:18:54,378 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:18:54,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:18:54,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:18:54,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:18:54,379 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:18:54,379 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:18:54,379 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:18:54,379 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:18:54,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:18:54,380 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:18:54,380 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:18:54,380 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:18:54,381 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:18:54,381 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:18:54,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:18:54,381 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:18:54,381 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:18:54,381 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:18:54,381 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:18:54,381 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 5bdb144d16ce690b0c83c76766410e2201d517c4cbaa861cb0d7e2bbbb9cb236 [2024-11-27 23:18:54,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:18:54,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:18:54,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:18:54,674 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:18:54,675 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:18:54,676 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2024-11-27 23:18:57,576 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/data/f9ba49d4e/b1ae1e902af04085afe5fb83bd8ecb47/FLAG00be1163d [2024-11-27 23:18:58,228 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:18:58,229 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2024-11-27 23:18:58,283 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/data/f9ba49d4e/b1ae1e902af04085afe5fb83bd8ecb47/FLAG00be1163d [2024-11-27 23:18:58,305 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/data/f9ba49d4e/b1ae1e902af04085afe5fb83bd8ecb47 [2024-11-27 23:18:58,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:18:58,311 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:18:58,312 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:18:58,313 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:18:58,317 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:18:58,318 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:18:58" (1/1) ... [2024-11-27 23:18:58,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152e30ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:18:58, skipping insertion in model container [2024-11-27 23:18:58,321 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:18:58" (1/1) ... [2024-11-27 23:18:58,441 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:18:59,668 WARN L250 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_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i[147706,147719] [2024-11-27 23:18:59,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:18:59,866 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:19:00,017 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3376] [2024-11-27 23:19:00,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3384-3385] [2024-11-27 23:19:00,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3393-3394] [2024-11-27 23:19:00,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [3402-3403] [2024-11-27 23:19:00,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3421] [2024-11-27 23:19:00,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3424] [2024-11-27 23:19:00,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3427] [2024-11-27 23:19:00,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3430] [2024-11-27 23:19:00,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3451] [2024-11-27 23:19:00,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3454] [2024-11-27 23:19:00,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3457] [2024-11-27 23:19:00,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3460] [2024-11-27 23:19:00,159 WARN L250 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_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i[147706,147719] [2024-11-27 23:19:00,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:19:00,288 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:19:00,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:00 WrapperNode [2024-11-27 23:19:00,288 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:19:00,289 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:19:00,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:19:00,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:19:00,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:00" (1/1) ... [2024-11-27 23:19:00,344 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:00" (1/1) ... [2024-11-27 23:19:00,497 INFO L138 Inliner]: procedures = 224, calls = 1326, calls flagged for inlining = 80, calls inlined = 75, statements flattened = 3189 [2024-11-27 23:19:00,497 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:19:00,498 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:19:00,498 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:19:00,498 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:19:00,509 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:00" (1/1) ... [2024-11-27 23:19:00,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:00" (1/1) ... [2024-11-27 23:19:00,544 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:00" (1/1) ... [2024-11-27 23:19:00,782 INFO L175 MemorySlicer]: Split 824 memory accesses to 20 slices as follows [2, 16, 6, 5, 5, 29, 15, 15, 26, 3, 5, 12, 8, 1, 3, 1, 647, 14, 8, 3]. 79 percent of accesses are in the largest equivalence class. The 518 initializations are split as follows [2, 0, 6, 5, 5, 0, 8, 8, 0, 3, 5, 0, 8, 0, 3, 0, 451, 3, 8, 3]. The 150 writes are split as follows [0, 16, 0, 0, 0, 29, 3, 0, 26, 0, 0, 2, 0, 1, 0, 0, 63, 10, 0, 0]. [2024-11-27 23:19:00,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:00" (1/1) ... [2024-11-27 23:19:00,786 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:00" (1/1) ... [2024-11-27 23:19:00,891 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:00" (1/1) ... [2024-11-27 23:19:00,900 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:00" (1/1) ... [2024-11-27 23:19:00,957 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:00" (1/1) ... [2024-11-27 23:19:00,985 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:00" (1/1) ... [2024-11-27 23:19:01,004 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:00" (1/1) ... [2024-11-27 23:19:01,041 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:19:01,042 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:19:01,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:19:01,043 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:19:01,044 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:00" (1/1) ... [2024-11-27 23:19:01,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:19:01,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:01,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:19:01,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:19:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2024-11-27 23:19:01,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2024-11-27 23:19:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure lp_error [2024-11-27 23:19:01,122 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_error [2024-11-27 23:19:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-27 23:19:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-27 23:19:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-27 23:19:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-27 23:19:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-27 23:19:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-27 23:19:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-27 23:19:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-27 23:19:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-27 23:19:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-27 23:19:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-27 23:19:01,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-27 23:19:01,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-27 23:19:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-27 23:19:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-27 23:19:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-11-27 23:19:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-11-27 23:19:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-11-27 23:19:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-11-27 23:19:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-11-27 23:19:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-27 23:19:01,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-27 23:19:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-27 23:19:01,126 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-27 23:19:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure lp_register [2024-11-27 23:19:01,126 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_register [2024-11-27 23:19:01,126 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2024-11-27 23:19:01,126 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2024-11-27 23:19:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-27 23:19:01,127 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-27 23:19:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure lp_release_parport [2024-11-27 23:19:01,127 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_release_parport [2024-11-27 23:19:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-27 23:19:01,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-27 23:19:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-27 23:19:01,127 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-27 23:19:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-27 23:19:01,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-27 23:19:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:19:01,127 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:19:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-27 23:19:01,127 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-27 23:19:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-27 23:19:01,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-27 23:19:01,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2024-11-27 23:19:01,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2024-11-27 23:19:01,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 23:19:01,128 INFO L130 BoogieDeclarations]: Found specification of procedure lp_set_timeout [2024-11-27 23:19:01,128 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_set_timeout [2024-11-27 23:19:01,128 INFO L130 BoogieDeclarations]: Found specification of procedure lp_reset [2024-11-27 23:19:01,128 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_reset [2024-11-27 23:19:01,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_25 [2024-11-27 23:19:01,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_25 [2024-11-27 23:19:01,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 23:19:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 23:19:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 23:19:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-27 23:19:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-27 23:19:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-27 23:19:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-27 23:19:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-27 23:19:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-27 23:19:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-27 23:19:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-27 23:19:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-27 23:19:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-27 23:19:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-27 23:19:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-27 23:19:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-27 23:19:01,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-27 23:19:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-27 23:19:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-27 23:19:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-27 23:19:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-27 23:19:01,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-27 23:19:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2024-11-27 23:19:01,133 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2024-11-27 23:19:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2024-11-27 23:19:01,133 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2024-11-27 23:19:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure parport_write [2024-11-27 23:19:01,133 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_write [2024-11-27 23:19:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 23:19:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-27 23:19:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-27 23:19:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-27 23:19:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-27 23:19:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-27 23:19:01,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-27 23:19:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-27 23:19:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-27 23:19:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-27 23:19:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-27 23:19:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-27 23:19:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-27 23:19:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-27 23:19:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-27 23:19:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-27 23:19:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-27 23:19:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-27 23:19:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-27 23:19:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-27 23:19:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-27 23:19:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-27 23:19:01,134 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-27 23:19:01,134 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-27 23:19:01,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-27 23:19:01,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lp_mutex [2024-11-27 23:19:01,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lp_mutex [2024-11-27 23:19:01,135 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2024-11-27 23:19:01,135 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2024-11-27 23:19:01,135 INFO L130 BoogieDeclarations]: Found specification of procedure parport_negotiate [2024-11-27 23:19:01,135 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_negotiate [2024-11-27 23:19:01,135 INFO L130 BoogieDeclarations]: Found specification of procedure parport_release [2024-11-27 23:19:01,135 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_release [2024-11-27 23:19:01,135 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_console [2024-11-27 23:19:01,139 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_console [2024-11-27 23:19:01,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-27 23:19:01,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-27 23:19:01,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-27 23:19:01,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-27 23:19:01,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-27 23:19:01,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-27 23:19:01,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-27 23:19:01,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-27 23:19:01,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-27 23:19:01,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-27 23:19:01,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-27 23:19:01,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-27 23:19:01,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-27 23:19:01,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-27 23:19:01,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-27 23:19:01,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-27 23:19:01,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-11-27 23:19:01,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-11-27 23:19:01,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-11-27 23:19:01,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-11-27 23:19:01,142 INFO L130 BoogieDeclarations]: Found specification of procedure parport_set_timeout [2024-11-27 23:19:01,142 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_set_timeout [2024-11-27 23:19:01,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 23:19:01,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 23:19:01,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 23:19:01,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure parport_claim_or_block [2024-11-27 23:19:01,145 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_claim_or_block [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure lp_do_ioctl [2024-11-27 23:19:01,145 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_do_ioctl [2024-11-27 23:19:01,145 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2024-11-27 23:19:01,146 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2024-11-27 23:19:01,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 23:19:01,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 23:19:01,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 23:19:01,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-27 23:19:01,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-27 23:19:01,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-27 23:19:01,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-27 23:19:01,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-27 23:19:01,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-27 23:19:01,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-27 23:19:01,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-27 23:19:01,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-27 23:19:01,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-27 23:19:01,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-27 23:19:01,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-27 23:19:01,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-27 23:19:01,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-27 23:19:01,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-27 23:19:01,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-27 23:19:01,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-27 23:19:01,150 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-27 23:19:01,150 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-27 23:19:01,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-27 23:19:01,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-27 23:19:01,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-27 23:19:01,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-27 23:19:01,150 INFO L130 BoogieDeclarations]: Found specification of procedure lp_claim_parport_or_block [2024-11-27 23:19:01,150 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_claim_parport_or_block [2024-11-27 23:19:01,150 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2024-11-27 23:19:01,150 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2024-11-27 23:19:01,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 23:19:01,150 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-27 23:19:01,150 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-27 23:19:01,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-27 23:19:01,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-27 23:19:01,150 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-27 23:19:01,150 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-27 23:19:01,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:19:01,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-27 23:19:01,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-27 23:19:01,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 23:19:01,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2024-11-27 23:19:01,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __bad_percpu_size [2024-11-27 23:19:01,151 INFO L130 BoogieDeclarations]: Found specification of procedure lp_detach [2024-11-27 23:19:01,151 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_detach [2024-11-27 23:19:01,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lp_mutex [2024-11-27 23:19:01,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lp_mutex [2024-11-27 23:19:01,152 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-27 23:19:01,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-27 23:19:01,152 INFO L130 BoogieDeclarations]: Found specification of procedure lp_negotiate [2024-11-27 23:19:01,152 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_negotiate [2024-11-27 23:19:01,152 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2024-11-27 23:19:01,152 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2024-11-27 23:19:01,152 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2024-11-27 23:19:01,152 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2024-11-27 23:19:01,152 INFO L130 BoogieDeclarations]: Found specification of procedure lp_wait_ready [2024-11-27 23:19:01,155 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_wait_ready [2024-11-27 23:19:01,155 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2024-11-27 23:19:01,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2024-11-27 23:19:01,155 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2024-11-27 23:19:01,155 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2024-11-27 23:19:01,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:19:01,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 23:19:01,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 23:19:01,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 23:19:01,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-27 23:19:01,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-27 23:19:01,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-27 23:19:01,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-27 23:19:01,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-27 23:19:01,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-27 23:19:01,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-27 23:19:01,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-27 23:19:01,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-27 23:19:01,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-27 23:19:01,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-27 23:19:01,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-27 23:19:01,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-27 23:19:01,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-27 23:19:01,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-27 23:19:01,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-27 23:19:01,160 INFO L130 BoogieDeclarations]: Found specification of procedure lp_write [2024-11-27 23:19:01,160 INFO L138 BoogieDeclarations]: Found implementation of procedure lp_write [2024-11-27 23:19:01,160 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2024-11-27 23:19:01,160 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2024-11-27 23:19:01,160 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2024-11-27 23:19:01,160 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2024-11-27 23:19:01,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:19:01,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:19:01,160 INFO L130 BoogieDeclarations]: Found specification of procedure parport_yield_blocking [2024-11-27 23:19:01,160 INFO L138 BoogieDeclarations]: Found implementation of procedure parport_yield_blocking [2024-11-27 23:19:01,160 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-27 23:19:01,160 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-27 23:19:01,913 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:19:01,917 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:19:02,080 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-27 23:19:10,811 INFO L? ?]: Removed 1071 outVars from TransFormulas that were not future-live. [2024-11-27 23:19:10,811 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:19:10,841 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:19:10,841 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 23:19:10,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:19:10 BoogieIcfgContainer [2024-11-27 23:19:10,842 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:19:10,844 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:19:10,844 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:19:10,849 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:19:10,849 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:18:58" (1/3) ... [2024-11-27 23:19:10,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee5adb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:19:10, skipping insertion in model container [2024-11-27 23:19:10,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:19:00" (2/3) ... [2024-11-27 23:19:10,850 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee5adb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:19:10, skipping insertion in model container [2024-11-27 23:19:10,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:19:10" (3/3) ... [2024-11-27 23:19:10,852 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i [2024-11-27 23:19:10,867 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:19:10,874 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--lp.ko-entry_point.cil.out.i that has 58 procedures, 994 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:19:10,979 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:19:10,993 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@65daccf3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:19:10,994 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:19:11,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 993 states, 730 states have (on average 1.3821917808219177) internal successors, (1009), 754 states have internal predecessors, (1009), 205 states have call successors, (205), 57 states have call predecessors, (205), 56 states have return successors, (200), 200 states have call predecessors, (200), 200 states have call successors, (200) [2024-11-27 23:19:11,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-27 23:19:11,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:11,026 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:11,026 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:11,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:11,032 INFO L85 PathProgramCache]: Analyzing trace with hash 513490188, now seen corresponding path program 1 times [2024-11-27 23:19:11,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:11,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755201220] [2024-11-27 23:19:11,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:11,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-27 23:19:13,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:13,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755201220] [2024-11-27 23:19:13,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755201220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:19:13,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807457745] [2024-11-27 23:19:13,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:13,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:13,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:13,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:13,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:19:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:15,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 3610 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:19:15,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:15,875 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-11-27 23:19:15,875 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:19:15,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807457745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:15,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:19:15,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:19:15,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600342102] [2024-11-27 23:19:15,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:15,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:19:15,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:15,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:19:15,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:19:15,910 INFO L87 Difference]: Start difference. First operand has 993 states, 730 states have (on average 1.3821917808219177) internal successors, (1009), 754 states have internal predecessors, (1009), 205 states have call successors, (205), 57 states have call predecessors, (205), 56 states have return successors, (200), 200 states have call predecessors, (200), 200 states have call successors, (200) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:19:16,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:16,064 INFO L93 Difference]: Finished difference Result 1981 states and 2857 transitions. [2024-11-27 23:19:16,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:19:16,066 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 180 [2024-11-27 23:19:16,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:16,083 INFO L225 Difference]: With dead ends: 1981 [2024-11-27 23:19:16,083 INFO L226 Difference]: Without dead ends: 981 [2024-11-27 23:19:16,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:19:16,095 INFO L435 NwaCegarLoop]: 1397 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:16,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:19:16,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2024-11-27 23:19:16,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 981. [2024-11-27 23:19:16,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 725 states have (on average 1.3668965517241378) internal successors, (991), 742 states have internal predecessors, (991), 200 states have call successors, (200), 56 states have call predecessors, (200), 55 states have return successors, (191), 191 states have call predecessors, (191), 191 states have call successors, (191) [2024-11-27 23:19:16,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1382 transitions. [2024-11-27 23:19:16,234 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1382 transitions. Word has length 180 [2024-11-27 23:19:16,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:16,234 INFO L471 AbstractCegarLoop]: Abstraction has 981 states and 1382 transitions. [2024-11-27 23:19:16,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-27 23:19:16,235 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1382 transitions. [2024-11-27 23:19:16,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-27 23:19:16,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:16,240 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:16,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:19:16,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 23:19:16,444 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:16,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:16,445 INFO L85 PathProgramCache]: Analyzing trace with hash -896238312, now seen corresponding path program 1 times [2024-11-27 23:19:16,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:16,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362225340] [2024-11-27 23:19:16,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:16,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:18,789 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-27 23:19:18,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:18,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362225340] [2024-11-27 23:19:18,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362225340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:18,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:18,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:19:18,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67840156] [2024-11-27 23:19:18,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:18,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:19:18,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:18,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:19:18,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:19:18,794 INFO L87 Difference]: Start difference. First operand 981 states and 1382 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:19:19,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:19,160 INFO L93 Difference]: Finished difference Result 2866 states and 4039 transitions. [2024-11-27 23:19:19,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:19:19,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 180 [2024-11-27 23:19:19,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:19,180 INFO L225 Difference]: With dead ends: 2866 [2024-11-27 23:19:19,180 INFO L226 Difference]: Without dead ends: 1923 [2024-11-27 23:19:19,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:19:19,188 INFO L435 NwaCegarLoop]: 1446 mSDtfsCounter, 1336 mSDsluCounter, 2765 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 4211 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:19,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 4211 Invalid, 26 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:19:19,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2024-11-27 23:19:19,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1905. [2024-11-27 23:19:19,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1905 states, 1419 states have (on average 1.3706835799859056) internal successors, (1945), 1446 states have internal predecessors, (1945), 376 states have call successors, (376), 110 states have call predecessors, (376), 109 states have return successors, (367), 366 states have call predecessors, (367), 367 states have call successors, (367) [2024-11-27 23:19:19,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 2688 transitions. [2024-11-27 23:19:19,365 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 2688 transitions. Word has length 180 [2024-11-27 23:19:19,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:19,367 INFO L471 AbstractCegarLoop]: Abstraction has 1905 states and 2688 transitions. [2024-11-27 23:19:19,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:19:19,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 2688 transitions. [2024-11-27 23:19:19,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-27 23:19:19,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:19,372 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:19,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:19:19,373 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:19,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:19,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1400690651, now seen corresponding path program 1 times [2024-11-27 23:19:19,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:19,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163153342] [2024-11-27 23:19:19,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:19,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:20,900 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-27 23:19:20,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:20,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163153342] [2024-11-27 23:19:20,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163153342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:20,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:20,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:19:20,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572759901] [2024-11-27 23:19:20,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:20,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:20,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:20,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:20,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:20,905 INFO L87 Difference]: Start difference. First operand 1905 states and 2688 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:19:20,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:20,991 INFO L93 Difference]: Finished difference Result 1907 states and 2689 transitions. [2024-11-27 23:19:20,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:20,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 181 [2024-11-27 23:19:20,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:21,008 INFO L225 Difference]: With dead ends: 1907 [2024-11-27 23:19:21,009 INFO L226 Difference]: Without dead ends: 1904 [2024-11-27 23:19:21,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:21,012 INFO L435 NwaCegarLoop]: 1379 mSDtfsCounter, 1331 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1331 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:21,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1331 Valid, 1379 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:19:21,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1904 states. [2024-11-27 23:19:21,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1904 to 1904. [2024-11-27 23:19:21,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1904 states, 1419 states have (on average 1.3699788583509513) internal successors, (1944), 1445 states have internal predecessors, (1944), 375 states have call successors, (375), 110 states have call predecessors, (375), 109 states have return successors, (367), 366 states have call predecessors, (367), 367 states have call successors, (367) [2024-11-27 23:19:21,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1904 states to 1904 states and 2686 transitions. [2024-11-27 23:19:21,136 INFO L78 Accepts]: Start accepts. Automaton has 1904 states and 2686 transitions. Word has length 181 [2024-11-27 23:19:21,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:21,138 INFO L471 AbstractCegarLoop]: Abstraction has 1904 states and 2686 transitions. [2024-11-27 23:19:21,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:19:21,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1904 states and 2686 transitions. [2024-11-27 23:19:21,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-27 23:19:21,143 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:21,144 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:21,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:19:21,144 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:21,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:21,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1581270733, now seen corresponding path program 1 times [2024-11-27 23:19:21,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:21,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104146776] [2024-11-27 23:19:21,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:21,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:22,721 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-27 23:19:22,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:22,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104146776] [2024-11-27 23:19:22,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104146776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:22,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:22,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:19:22,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49966724] [2024-11-27 23:19:22,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:22,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:22,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:22,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:22,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:22,723 INFO L87 Difference]: Start difference. First operand 1904 states and 2686 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 23:19:23,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:23,052 INFO L93 Difference]: Finished difference Result 4313 states and 6033 transitions. [2024-11-27 23:19:23,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:23,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 184 [2024-11-27 23:19:23,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:23,068 INFO L225 Difference]: With dead ends: 4313 [2024-11-27 23:19:23,068 INFO L226 Difference]: Without dead ends: 2447 [2024-11-27 23:19:23,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:23,076 INFO L435 NwaCegarLoop]: 1379 mSDtfsCounter, 430 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 2657 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:23,077 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 2657 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:19:23,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2024-11-27 23:19:23,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 2386. [2024-11-27 23:19:23,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2386 states, 1787 states have (on average 1.3687744823726917) internal successors, (2446), 1817 states have internal predecessors, (2446), 444 states have call successors, (444), 155 states have call predecessors, (444), 154 states have return successors, (436), 433 states have call predecessors, (436), 436 states have call successors, (436) [2024-11-27 23:19:23,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 3326 transitions. [2024-11-27 23:19:23,261 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 3326 transitions. Word has length 184 [2024-11-27 23:19:23,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:23,262 INFO L471 AbstractCegarLoop]: Abstraction has 2386 states and 3326 transitions. [2024-11-27 23:19:23,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 23:19:23,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 3326 transitions. [2024-11-27 23:19:23,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-27 23:19:23,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:23,269 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:23,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:19:23,270 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:23,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:23,270 INFO L85 PathProgramCache]: Analyzing trace with hash -471997123, now seen corresponding path program 1 times [2024-11-27 23:19:23,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:23,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44083616] [2024-11-27 23:19:23,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:23,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:24,801 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-27 23:19:24,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:24,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44083616] [2024-11-27 23:19:24,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44083616] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:24,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:24,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:19:24,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989753150] [2024-11-27 23:19:24,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:24,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:24,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:24,803 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:24,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:24,803 INFO L87 Difference]: Start difference. First operand 2386 states and 3326 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:19:24,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:24,915 INFO L93 Difference]: Finished difference Result 2388 states and 3327 transitions. [2024-11-27 23:19:24,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:24,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 182 [2024-11-27 23:19:24,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:24,930 INFO L225 Difference]: With dead ends: 2388 [2024-11-27 23:19:24,930 INFO L226 Difference]: Without dead ends: 2385 [2024-11-27 23:19:24,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:24,933 INFO L435 NwaCegarLoop]: 1377 mSDtfsCounter, 1328 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 1377 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:24,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 1377 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:19:24,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2024-11-27 23:19:25,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 2385. [2024-11-27 23:19:25,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 1787 states have (on average 1.3682148852825966) internal successors, (2445), 1816 states have internal predecessors, (2445), 443 states have call successors, (443), 155 states have call predecessors, (443), 154 states have return successors, (436), 433 states have call predecessors, (436), 436 states have call successors, (436) [2024-11-27 23:19:25,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3324 transitions. [2024-11-27 23:19:25,077 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3324 transitions. Word has length 182 [2024-11-27 23:19:25,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:25,078 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 3324 transitions. [2024-11-27 23:19:25,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:19:25,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3324 transitions. [2024-11-27 23:19:25,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-27 23:19:25,082 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:25,082 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:25,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:19:25,082 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:25,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:25,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1747263960, now seen corresponding path program 1 times [2024-11-27 23:19:25,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:25,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574343611] [2024-11-27 23:19:25,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:25,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:26,655 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-27 23:19:26,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:26,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574343611] [2024-11-27 23:19:26,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574343611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:26,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:26,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:19:26,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313700628] [2024-11-27 23:19:26,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:26,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:26,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:26,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:26,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:26,658 INFO L87 Difference]: Start difference. First operand 2385 states and 3324 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:19:26,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:26,848 INFO L93 Difference]: Finished difference Result 2637 states and 3578 transitions. [2024-11-27 23:19:26,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:26,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 183 [2024-11-27 23:19:26,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:26,866 INFO L225 Difference]: With dead ends: 2637 [2024-11-27 23:19:26,866 INFO L226 Difference]: Without dead ends: 2633 [2024-11-27 23:19:26,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:26,869 INFO L435 NwaCegarLoop]: 1384 mSDtfsCounter, 1016 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1016 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:26,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1016 Valid, 1815 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:19:26,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2024-11-27 23:19:27,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2629. [2024-11-27 23:19:27,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2629 states, 1949 states have (on average 1.344279117496152) internal successors, (2620), 1976 states have internal predecessors, (2620), 477 states have call successors, (477), 203 states have call predecessors, (477), 202 states have return successors, (472), 469 states have call predecessors, (472), 472 states have call successors, (472) [2024-11-27 23:19:27,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 3569 transitions. [2024-11-27 23:19:27,099 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 3569 transitions. Word has length 183 [2024-11-27 23:19:27,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:27,100 INFO L471 AbstractCegarLoop]: Abstraction has 2629 states and 3569 transitions. [2024-11-27 23:19:27,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-27 23:19:27,100 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 3569 transitions. [2024-11-27 23:19:27,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-27 23:19:27,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:27,106 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:27,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:19:27,106 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:27,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:27,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1669141920, now seen corresponding path program 1 times [2024-11-27 23:19:27,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:27,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033004450] [2024-11-27 23:19:27,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:27,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:28,816 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-27 23:19:28,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:28,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033004450] [2024-11-27 23:19:28,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033004450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:28,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:28,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:19:28,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033501337] [2024-11-27 23:19:28,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:28,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:19:28,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:28,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:19:28,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:19:28,818 INFO L87 Difference]: Start difference. First operand 2629 states and 3569 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:19:29,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:29,181 INFO L93 Difference]: Finished difference Result 5243 states and 7115 transitions. [2024-11-27 23:19:29,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:19:29,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 184 [2024-11-27 23:19:29,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:29,197 INFO L225 Difference]: With dead ends: 5243 [2024-11-27 23:19:29,197 INFO L226 Difference]: Without dead ends: 2652 [2024-11-27 23:19:29,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:19:29,207 INFO L435 NwaCegarLoop]: 1371 mSDtfsCounter, 1370 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 4116 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:29,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 4116 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:19:29,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states. [2024-11-27 23:19:29,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 2642. [2024-11-27 23:19:29,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2642 states, 1962 states have (on average 1.3419979612640163) internal successors, (2633), 1989 states have internal predecessors, (2633), 477 states have call successors, (477), 203 states have call predecessors, (477), 202 states have return successors, (472), 469 states have call predecessors, (472), 472 states have call successors, (472) [2024-11-27 23:19:29,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2642 states to 2642 states and 3582 transitions. [2024-11-27 23:19:29,369 INFO L78 Accepts]: Start accepts. Automaton has 2642 states and 3582 transitions. Word has length 184 [2024-11-27 23:19:29,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:29,370 INFO L471 AbstractCegarLoop]: Abstraction has 2642 states and 3582 transitions. [2024-11-27 23:19:29,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-27 23:19:29,370 INFO L276 IsEmpty]: Start isEmpty. Operand 2642 states and 3582 transitions. [2024-11-27 23:19:29,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-27 23:19:29,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:29,374 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:29,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:19:29,374 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:29,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:29,375 INFO L85 PathProgramCache]: Analyzing trace with hash -16251786, now seen corresponding path program 1 times [2024-11-27 23:19:29,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:29,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891150997] [2024-11-27 23:19:29,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:29,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:30,620 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-27 23:19:30,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:30,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891150997] [2024-11-27 23:19:30,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891150997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:30,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:30,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:19:30,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196479974] [2024-11-27 23:19:30,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:30,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:30,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:30,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:30,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:30,622 INFO L87 Difference]: Start difference. First operand 2642 states and 3582 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 23:19:34,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:19:35,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:35,104 INFO L93 Difference]: Finished difference Result 7617 states and 10327 transitions. [2024-11-27 23:19:35,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:35,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 194 [2024-11-27 23:19:35,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:35,135 INFO L225 Difference]: With dead ends: 7617 [2024-11-27 23:19:35,135 INFO L226 Difference]: Without dead ends: 5013 [2024-11-27 23:19:35,144 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:35,145 INFO L435 NwaCegarLoop]: 1391 mSDtfsCounter, 1275 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 2675 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:35,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 2675 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-27 23:19:35,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5013 states. [2024-11-27 23:19:35,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5013 to 5001. [2024-11-27 23:19:35,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5001 states, 3715 states have (on average 1.3448183041722745) internal successors, (4996), 3760 states have internal predecessors, (4996), 892 states have call successors, (892), 394 states have call predecessors, (892), 393 states have return successors, (887), 884 states have call predecessors, (887), 887 states have call successors, (887) [2024-11-27 23:19:35,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5001 states to 5001 states and 6775 transitions. [2024-11-27 23:19:35,508 INFO L78 Accepts]: Start accepts. Automaton has 5001 states and 6775 transitions. Word has length 194 [2024-11-27 23:19:35,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:35,509 INFO L471 AbstractCegarLoop]: Abstraction has 5001 states and 6775 transitions. [2024-11-27 23:19:35,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-27 23:19:35,513 INFO L276 IsEmpty]: Start isEmpty. Operand 5001 states and 6775 transitions. [2024-11-27 23:19:35,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-27 23:19:35,516 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:35,516 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:35,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:19:35,516 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:35,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:35,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1398527250, now seen corresponding path program 1 times [2024-11-27 23:19:35,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:35,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423017626] [2024-11-27 23:19:35,521 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:35,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:37,114 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-27 23:19:37,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:37,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423017626] [2024-11-27 23:19:37,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423017626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:37,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:37,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:19:37,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483451287] [2024-11-27 23:19:37,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:37,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:37,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:37,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:37,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:37,118 INFO L87 Difference]: Start difference. First operand 5001 states and 6775 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 23:19:37,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:37,354 INFO L93 Difference]: Finished difference Result 5003 states and 6776 transitions. [2024-11-27 23:19:37,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:37,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 193 [2024-11-27 23:19:37,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:37,383 INFO L225 Difference]: With dead ends: 5003 [2024-11-27 23:19:37,384 INFO L226 Difference]: Without dead ends: 5000 [2024-11-27 23:19:37,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:37,389 INFO L435 NwaCegarLoop]: 1371 mSDtfsCounter, 1314 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:37,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 1371 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:19:37,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5000 states. [2024-11-27 23:19:37,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5000 to 5000. [2024-11-27 23:19:37,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5000 states, 3715 states have (on average 1.3445491251682369) internal successors, (4995), 3759 states have internal predecessors, (4995), 891 states have call successors, (891), 394 states have call predecessors, (891), 393 states have return successors, (887), 884 states have call predecessors, (887), 887 states have call successors, (887) [2024-11-27 23:19:37,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5000 states to 5000 states and 6773 transitions. [2024-11-27 23:19:37,718 INFO L78 Accepts]: Start accepts. Automaton has 5000 states and 6773 transitions. Word has length 193 [2024-11-27 23:19:37,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:37,719 INFO L471 AbstractCegarLoop]: Abstraction has 5000 states and 6773 transitions. [2024-11-27 23:19:37,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 23:19:37,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5000 states and 6773 transitions. [2024-11-27 23:19:37,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-27 23:19:37,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:37,762 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:37,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:19:37,764 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:37,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:37,765 INFO L85 PathProgramCache]: Analyzing trace with hash 404426489, now seen corresponding path program 1 times [2024-11-27 23:19:37,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:37,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807629789] [2024-11-27 23:19:37,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:37,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:38,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:38,868 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-27 23:19:38,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:38,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807629789] [2024-11-27 23:19:38,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807629789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:38,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:38,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:19:38,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969128530] [2024-11-27 23:19:38,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:38,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:38,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:38,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:38,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:38,870 INFO L87 Difference]: Start difference. First operand 5000 states and 6773 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 23:19:39,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:39,479 INFO L93 Difference]: Finished difference Result 14802 states and 20163 transitions. [2024-11-27 23:19:39,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:39,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 194 [2024-11-27 23:19:39,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:39,559 INFO L225 Difference]: With dead ends: 14802 [2024-11-27 23:19:39,559 INFO L226 Difference]: Without dead ends: 9803 [2024-11-27 23:19:39,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:39,580 INFO L435 NwaCegarLoop]: 1758 mSDtfsCounter, 1313 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 3047 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:39,581 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1313 Valid, 3047 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:19:39,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9803 states. [2024-11-27 23:19:40,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9803 to 9761. [2024-11-27 23:19:40,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9761 states, 7273 states have (on average 1.3460745222054173) internal successors, (9790), 7363 states have internal predecessors, (9790), 1724 states have call successors, (1724), 765 states have call predecessors, (1724), 763 states have return successors, (1773), 1705 states have call predecessors, (1773), 1717 states have call successors, (1773) [2024-11-27 23:19:40,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9761 states to 9761 states and 13287 transitions. [2024-11-27 23:19:40,224 INFO L78 Accepts]: Start accepts. Automaton has 9761 states and 13287 transitions. Word has length 194 [2024-11-27 23:19:40,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:40,225 INFO L471 AbstractCegarLoop]: Abstraction has 9761 states and 13287 transitions. [2024-11-27 23:19:40,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-27 23:19:40,226 INFO L276 IsEmpty]: Start isEmpty. Operand 9761 states and 13287 transitions. [2024-11-27 23:19:40,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-11-27 23:19:40,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:40,234 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:40,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:19:40,235 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:40,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:40,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1396473360, now seen corresponding path program 1 times [2024-11-27 23:19:40,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:40,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761840712] [2024-11-27 23:19:40,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:40,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:42,322 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2024-11-27 23:19:42,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:42,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761840712] [2024-11-27 23:19:42,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761840712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:42,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:19:42,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:19:42,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921370695] [2024-11-27 23:19:42,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:42,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:42,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:42,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:42,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:42,327 INFO L87 Difference]: Start difference. First operand 9761 states and 13287 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-27 23:19:43,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:43,183 INFO L93 Difference]: Finished difference Result 19508 states and 26557 transitions. [2024-11-27 23:19:43,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:43,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 254 [2024-11-27 23:19:43,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:43,289 INFO L225 Difference]: With dead ends: 19508 [2024-11-27 23:19:43,289 INFO L226 Difference]: Without dead ends: 9785 [2024-11-27 23:19:43,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:19:43,352 INFO L435 NwaCegarLoop]: 1368 mSDtfsCounter, 3 mSDsluCounter, 1364 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2732 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:43,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2732 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:19:43,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9785 states. [2024-11-27 23:19:44,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9785 to 9765. [2024-11-27 23:19:44,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9765 states, 7277 states have (on average 1.3458842929778756) internal successors, (9794), 7367 states have internal predecessors, (9794), 1724 states have call successors, (1724), 765 states have call predecessors, (1724), 763 states have return successors, (1773), 1705 states have call predecessors, (1773), 1717 states have call successors, (1773) [2024-11-27 23:19:44,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9765 states to 9765 states and 13291 transitions. [2024-11-27 23:19:44,225 INFO L78 Accepts]: Start accepts. Automaton has 9765 states and 13291 transitions. Word has length 254 [2024-11-27 23:19:44,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:44,226 INFO L471 AbstractCegarLoop]: Abstraction has 9765 states and 13291 transitions. [2024-11-27 23:19:44,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-27 23:19:44,226 INFO L276 IsEmpty]: Start isEmpty. Operand 9765 states and 13291 transitions. [2024-11-27 23:19:44,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-27 23:19:44,235 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:44,235 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:44,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:19:44,236 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:44,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:44,237 INFO L85 PathProgramCache]: Analyzing trace with hash -45216279, now seen corresponding path program 1 times [2024-11-27 23:19:44,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:44,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685803863] [2024-11-27 23:19:44,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:44,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:46,163 INFO L134 CoverageAnalysis]: Checked inductivity of 579 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2024-11-27 23:19:46,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:46,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685803863] [2024-11-27 23:19:46,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685803863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:19:46,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888679365] [2024-11-27 23:19:46,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:46,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:46,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:46,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:46,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:19:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:48,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 4151 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:19:48,434 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:48,479 INFO L134 CoverageAnalysis]: Checked inductivity of 579 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2024-11-27 23:19:48,480 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:19:48,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888679365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:19:48,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:19:48,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-27 23:19:48,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988479901] [2024-11-27 23:19:48,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:19:48,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:19:48,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:48,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:19:48,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:19:48,482 INFO L87 Difference]: Start difference. First operand 9765 states and 13291 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-27 23:19:52,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:19:52,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:52,914 INFO L93 Difference]: Finished difference Result 15228 states and 20652 transitions. [2024-11-27 23:19:52,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:19:52,914 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 266 [2024-11-27 23:19:52,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:52,946 INFO L225 Difference]: With dead ends: 15228 [2024-11-27 23:19:52,946 INFO L226 Difference]: Without dead ends: 5497 [2024-11-27 23:19:52,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:19:52,976 INFO L435 NwaCegarLoop]: 1372 mSDtfsCounter, 9 mSDsluCounter, 1366 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:52,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2738 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-27 23:19:52,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5497 states. [2024-11-27 23:19:53,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5497 to 5476. [2024-11-27 23:19:53,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5476 states, 4067 states have (on average 1.3358741086796164) internal successors, (5433), 4118 states have internal predecessors, (5433), 964 states have call successors, (964), 446 states have call predecessors, (964), 444 states have return successors, (985), 951 states have call predecessors, (985), 957 states have call successors, (985) [2024-11-27 23:19:53,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 7382 transitions. [2024-11-27 23:19:53,315 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 7382 transitions. Word has length 266 [2024-11-27 23:19:53,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:53,316 INFO L471 AbstractCegarLoop]: Abstraction has 5476 states and 7382 transitions. [2024-11-27 23:19:53,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-27 23:19:53,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 7382 transitions. [2024-11-27 23:19:53,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-27 23:19:53,325 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:19:53,325 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:19:53,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 23:19:53,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-27 23:19:53,526 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:19:53,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:19:53,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1140239173, now seen corresponding path program 1 times [2024-11-27 23:19:53,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:19:53,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223428844] [2024-11-27 23:19:53,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:53,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:19:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:55,078 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2024-11-27 23:19:55,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:19:55,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223428844] [2024-11-27 23:19:55,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223428844] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:19:55,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054328696] [2024-11-27 23:19:55,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:19:55,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:19:55,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:19:55,081 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:19:55,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:19:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:19:57,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 4231 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:19:57,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:19:57,447 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 255 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-27 23:19:57,447 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:19:58,243 INFO L134 CoverageAnalysis]: Checked inductivity of 691 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 687 trivial. 0 not checked. [2024-11-27 23:19:58,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054328696] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:19:58,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:19:58,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-27 23:19:58,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168237287] [2024-11-27 23:19:58,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:19:58,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:19:58,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:19:58,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:19:58,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:19:58,246 INFO L87 Difference]: Start difference. First operand 5476 states and 7382 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 5 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) [2024-11-27 23:19:59,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:19:59,419 INFO L93 Difference]: Finished difference Result 10775 states and 14540 transitions. [2024-11-27 23:19:59,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:19:59,420 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 5 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) Word has length 283 [2024-11-27 23:19:59,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:19:59,456 INFO L225 Difference]: With dead ends: 10775 [2024-11-27 23:19:59,457 INFO L226 Difference]: Without dead ends: 5548 [2024-11-27 23:19:59,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:19:59,474 INFO L435 NwaCegarLoop]: 1368 mSDtfsCounter, 6 mSDsluCounter, 2724 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4092 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:19:59,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4092 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:19:59,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5548 states. [2024-11-27 23:19:59,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5548 to 5548. [2024-11-27 23:19:59,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5548 states, 4115 states have (on average 1.3319562575941677) internal successors, (5481), 4166 states have internal predecessors, (5481), 988 states have call successors, (988), 446 states have call predecessors, (988), 444 states have return successors, (1009), 975 states have call predecessors, (1009), 981 states have call successors, (1009) [2024-11-27 23:19:59,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5548 states to 5548 states and 7478 transitions. [2024-11-27 23:19:59,996 INFO L78 Accepts]: Start accepts. Automaton has 5548 states and 7478 transitions. Word has length 283 [2024-11-27 23:19:59,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:19:59,998 INFO L471 AbstractCegarLoop]: Abstraction has 5548 states and 7478 transitions. [2024-11-27 23:19:59,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 5 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 5 states have call predecessors, (39), 5 states have call successors, (39) [2024-11-27 23:19:59,999 INFO L276 IsEmpty]: Start isEmpty. Operand 5548 states and 7478 transitions. [2024-11-27 23:20:00,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-11-27 23:20:00,011 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:00,011 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:00,031 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:20:00,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-27 23:20:00,212 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:00,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:00,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1660818502, now seen corresponding path program 2 times [2024-11-27 23:20:00,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:00,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251227924] [2024-11-27 23:20:00,214 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:20:00,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:01,424 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:20:01,424 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:20:01,718 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2024-11-27 23:20:01,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:01,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251227924] [2024-11-27 23:20:01,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251227924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:01,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:01,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:20:01,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264128709] [2024-11-27 23:20:01,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:01,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:20:01,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:01,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:20:01,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:20:01,720 INFO L87 Difference]: Start difference. First operand 5548 states and 7478 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-27 23:20:05,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:20:06,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:06,116 INFO L93 Difference]: Finished difference Result 5556 states and 7484 transitions. [2024-11-27 23:20:06,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:20:06,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 319 [2024-11-27 23:20:06,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:06,151 INFO L225 Difference]: With dead ends: 5556 [2024-11-27 23:20:06,151 INFO L226 Difference]: Without dead ends: 5553 [2024-11-27 23:20:06,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:20:06,155 INFO L435 NwaCegarLoop]: 1485 mSDtfsCounter, 423 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:06,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 2547 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-27 23:20:06,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5553 states. [2024-11-27 23:20:06,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5553 to 5547. [2024-11-27 23:20:06,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5547 states, 4115 states have (on average 1.3309842041312272) internal successors, (5477), 4165 states have internal predecessors, (5477), 987 states have call successors, (987), 446 states have call predecessors, (987), 444 states have return successors, (1009), 975 states have call predecessors, (1009), 981 states have call successors, (1009) [2024-11-27 23:20:06,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5547 states to 5547 states and 7473 transitions. [2024-11-27 23:20:06,577 INFO L78 Accepts]: Start accepts. Automaton has 5547 states and 7473 transitions. Word has length 319 [2024-11-27 23:20:06,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:06,578 INFO L471 AbstractCegarLoop]: Abstraction has 5547 states and 7473 transitions. [2024-11-27 23:20:06,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (28), 3 states have call predecessors, (28), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-27 23:20:06,578 INFO L276 IsEmpty]: Start isEmpty. Operand 5547 states and 7473 transitions. [2024-11-27 23:20:06,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-27 23:20:06,593 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:06,593 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:06,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:20:06,594 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:06,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:06,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1217805243, now seen corresponding path program 1 times [2024-11-27 23:20:06,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:06,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817816097] [2024-11-27 23:20:06,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:06,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:08,012 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2024-11-27 23:20:08,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:08,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817816097] [2024-11-27 23:20:08,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817816097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:08,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:08,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:20:08,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884346014] [2024-11-27 23:20:08,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:08,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:20:08,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:08,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:20:08,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:20:08,014 INFO L87 Difference]: Start difference. First operand 5547 states and 7473 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 23:20:12,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:20:12,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:12,387 INFO L93 Difference]: Finished difference Result 10847 states and 14619 transitions. [2024-11-27 23:20:12,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:20:12,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 352 [2024-11-27 23:20:12,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:12,420 INFO L225 Difference]: With dead ends: 10847 [2024-11-27 23:20:12,420 INFO L226 Difference]: Without dead ends: 5549 [2024-11-27 23:20:12,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:20:12,434 INFO L435 NwaCegarLoop]: 2234 mSDtfsCounter, 1278 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 3563 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:12,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1278 Valid, 3563 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-27 23:20:12,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5549 states. [2024-11-27 23:20:12,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5549 to 5500. [2024-11-27 23:20:12,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5500 states, 4076 states have (on average 1.329244357212954) internal successors, (5418), 4128 states have internal predecessors, (5418), 981 states have call successors, (981), 441 states have call predecessors, (981), 442 states have return successors, (982), 970 states have call predecessors, (982), 968 states have call successors, (982) [2024-11-27 23:20:12,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5500 states to 5500 states and 7381 transitions. [2024-11-27 23:20:12,743 INFO L78 Accepts]: Start accepts. Automaton has 5500 states and 7381 transitions. Word has length 352 [2024-11-27 23:20:12,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:12,744 INFO L471 AbstractCegarLoop]: Abstraction has 5500 states and 7381 transitions. [2024-11-27 23:20:12,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 23:20:12,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5500 states and 7381 transitions. [2024-11-27 23:20:12,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-27 23:20:12,758 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:12,758 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:12,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:20:12,759 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:12,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:12,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1229121370, now seen corresponding path program 1 times [2024-11-27 23:20:12,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:12,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633114463] [2024-11-27 23:20:12,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:12,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:14,718 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2024-11-27 23:20:14,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:14,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633114463] [2024-11-27 23:20:14,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633114463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:20:14,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996343102] [2024-11-27 23:20:14,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:14,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:20:14,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:20:14,722 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:20:14,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:20:17,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:17,263 INFO L256 TraceCheckSpWp]: Trace formula consists of 4916 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 23:20:17,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:20:17,471 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 255 proven. 40 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2024-11-27 23:20:17,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:20:18,536 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 3 proven. 40 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2024-11-27 23:20:18,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996343102] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:20:18,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:20:18,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-27 23:20:18,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004108609] [2024-11-27 23:20:18,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:20:18,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:20:18,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:18,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:20:18,539 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:20:18,539 INFO L87 Difference]: Start difference. First operand 5500 states and 7381 transitions. Second operand has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 11 states have internal predecessors, (178), 10 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (59), 10 states have call predecessors, (59), 10 states have call successors, (59) [2024-11-27 23:20:19,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:19,814 INFO L93 Difference]: Finished difference Result 10847 states and 14574 transitions. [2024-11-27 23:20:19,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:20:19,814 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 11 states have internal predecessors, (178), 10 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (59), 10 states have call predecessors, (59), 10 states have call successors, (59) Word has length 352 [2024-11-27 23:20:19,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:19,839 INFO L225 Difference]: With dead ends: 10847 [2024-11-27 23:20:19,840 INFO L226 Difference]: Without dead ends: 5596 [2024-11-27 23:20:19,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 698 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:20:19,853 INFO L435 NwaCegarLoop]: 1366 mSDtfsCounter, 3 mSDsluCounter, 5440 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6806 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:19,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6806 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 23:20:19,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5596 states. [2024-11-27 23:20:20,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5596 to 5596. [2024-11-27 23:20:20,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5596 states, 4140 states have (on average 1.3241545893719806) internal successors, (5482), 4192 states have internal predecessors, (5482), 1013 states have call successors, (1013), 441 states have call predecessors, (1013), 442 states have return successors, (1014), 1002 states have call predecessors, (1014), 1000 states have call successors, (1014) [2024-11-27 23:20:20,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5596 states to 5596 states and 7509 transitions. [2024-11-27 23:20:20,164 INFO L78 Accepts]: Start accepts. Automaton has 5596 states and 7509 transitions. Word has length 352 [2024-11-27 23:20:20,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:20,166 INFO L471 AbstractCegarLoop]: Abstraction has 5596 states and 7509 transitions. [2024-11-27 23:20:20,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 11 states have internal predecessors, (178), 10 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (59), 10 states have call predecessors, (59), 10 states have call successors, (59) [2024-11-27 23:20:20,166 INFO L276 IsEmpty]: Start isEmpty. Operand 5596 states and 7509 transitions. [2024-11-27 23:20:20,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-11-27 23:20:20,179 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:20,180 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:20,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 23:20:20,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 23:20:20,380 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:20,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:20,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1364906690, now seen corresponding path program 2 times [2024-11-27 23:20:20,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:20,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590189767] [2024-11-27 23:20:20,382 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:20:20,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:21,415 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:20:21,415 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:20:21,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1223 trivial. 0 not checked. [2024-11-27 23:20:21,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:21,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590189767] [2024-11-27 23:20:21,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590189767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:21,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:21,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:20:21,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524047737] [2024-11-27 23:20:21,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:21,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:20:21,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:21,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:20:21,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:20:21,926 INFO L87 Difference]: Start difference. First operand 5596 states and 7509 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 23:20:22,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:22,287 INFO L93 Difference]: Finished difference Result 5827 states and 7755 transitions. [2024-11-27 23:20:22,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:20:22,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 400 [2024-11-27 23:20:22,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:22,313 INFO L225 Difference]: With dead ends: 5827 [2024-11-27 23:20:22,313 INFO L226 Difference]: Without dead ends: 5300 [2024-11-27 23:20:22,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:20:22,318 INFO L435 NwaCegarLoop]: 1374 mSDtfsCounter, 0 mSDsluCounter, 5482 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6856 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:22,318 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6856 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:20:22,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5300 states. [2024-11-27 23:20:22,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5300 to 5300. [2024-11-27 23:20:22,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5300 states, 3913 states have (on average 1.3158701763352927) internal successors, (5149), 3958 states have internal predecessors, (5149), 950 states have call successors, (950), 435 states have call predecessors, (950), 436 states have return successors, (952), 941 states have call predecessors, (952), 938 states have call successors, (952) [2024-11-27 23:20:22,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5300 states to 5300 states and 7051 transitions. [2024-11-27 23:20:22,614 INFO L78 Accepts]: Start accepts. Automaton has 5300 states and 7051 transitions. Word has length 400 [2024-11-27 23:20:22,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:22,615 INFO L471 AbstractCegarLoop]: Abstraction has 5300 states and 7051 transitions. [2024-11-27 23:20:22,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-27 23:20:22,616 INFO L276 IsEmpty]: Start isEmpty. Operand 5300 states and 7051 transitions. [2024-11-27 23:20:22,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-11-27 23:20:22,627 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:22,628 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:22,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 23:20:22,628 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:22,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:22,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1891674577, now seen corresponding path program 1 times [2024-11-27 23:20:22,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:22,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284464200] [2024-11-27 23:20:22,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:22,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:24,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1232 trivial. 0 not checked. [2024-11-27 23:20:24,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:24,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284464200] [2024-11-27 23:20:24,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284464200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:24,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:24,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:20:24,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121291848] [2024-11-27 23:20:24,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:24,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:20:24,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:24,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:20:24,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:20:24,661 INFO L87 Difference]: Start difference. First operand 5300 states and 7051 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-27 23:20:25,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:25,024 INFO L93 Difference]: Finished difference Result 7378 states and 9788 transitions. [2024-11-27 23:20:25,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:20:25,025 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 408 [2024-11-27 23:20:25,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:25,051 INFO L225 Difference]: With dead ends: 7378 [2024-11-27 23:20:25,051 INFO L226 Difference]: Without dead ends: 5292 [2024-11-27 23:20:25,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:20:25,059 INFO L435 NwaCegarLoop]: 1367 mSDtfsCounter, 0 mSDsluCounter, 5462 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6829 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:25,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6829 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:20:25,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5292 states. [2024-11-27 23:20:25,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5292 to 5292. [2024-11-27 23:20:25,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5292 states, 3907 states have (on average 1.3158433580752495) internal successors, (5141), 3954 states have internal predecessors, (5141), 950 states have call successors, (950), 435 states have call predecessors, (950), 434 states have return successors, (948), 937 states have call predecessors, (948), 938 states have call successors, (948) [2024-11-27 23:20:25,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5292 states to 5292 states and 7039 transitions. [2024-11-27 23:20:25,355 INFO L78 Accepts]: Start accepts. Automaton has 5292 states and 7039 transitions. Word has length 408 [2024-11-27 23:20:25,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:25,356 INFO L471 AbstractCegarLoop]: Abstraction has 5292 states and 7039 transitions. [2024-11-27 23:20:25,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-27 23:20:25,357 INFO L276 IsEmpty]: Start isEmpty. Operand 5292 states and 7039 transitions. [2024-11-27 23:20:25,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2024-11-27 23:20:25,368 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:25,368 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:25,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 23:20:25,369 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:25,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:25,370 INFO L85 PathProgramCache]: Analyzing trace with hash 859714010, now seen corresponding path program 1 times [2024-11-27 23:20:25,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:25,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308903499] [2024-11-27 23:20:25,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:25,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:27,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1229 trivial. 0 not checked. [2024-11-27 23:20:27,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:27,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308903499] [2024-11-27 23:20:27,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308903499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:27,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:27,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:20:27,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530295784] [2024-11-27 23:20:27,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:27,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:20:27,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:27,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:20:27,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:20:27,204 INFO L87 Difference]: Start difference. First operand 5292 states and 7039 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-27 23:20:31,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:20:31,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:31,675 INFO L93 Difference]: Finished difference Result 12410 states and 16445 transitions. [2024-11-27 23:20:31,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:20:31,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 420 [2024-11-27 23:20:31,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:31,706 INFO L225 Difference]: With dead ends: 12410 [2024-11-27 23:20:31,706 INFO L226 Difference]: Without dead ends: 7367 [2024-11-27 23:20:31,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:20:31,718 INFO L435 NwaCegarLoop]: 1738 mSDtfsCounter, 915 mSDsluCounter, 1164 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 2902 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:31,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 2902 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-27 23:20:31,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7367 states. [2024-11-27 23:20:32,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7367 to 7127. [2024-11-27 23:20:32,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7127 states, 5298 states have (on average 1.3178557946394867) internal successors, (6982), 5363 states have internal predecessors, (6982), 1209 states have call successors, (1209), 620 states have call predecessors, (1209), 619 states have return successors, (1209), 1194 states have call predecessors, (1209), 1197 states have call successors, (1209) [2024-11-27 23:20:32,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7127 states to 7127 states and 9400 transitions. [2024-11-27 23:20:32,115 INFO L78 Accepts]: Start accepts. Automaton has 7127 states and 9400 transitions. Word has length 420 [2024-11-27 23:20:32,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:32,116 INFO L471 AbstractCegarLoop]: Abstraction has 7127 states and 9400 transitions. [2024-11-27 23:20:32,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-27 23:20:32,116 INFO L276 IsEmpty]: Start isEmpty. Operand 7127 states and 9400 transitions. [2024-11-27 23:20:32,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-27 23:20:32,129 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:32,130 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:32,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 23:20:32,130 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:32,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:32,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1379034868, now seen corresponding path program 1 times [2024-11-27 23:20:32,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:32,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120676316] [2024-11-27 23:20:32,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:32,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:33,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1266 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1249 trivial. 0 not checked. [2024-11-27 23:20:33,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:33,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120676316] [2024-11-27 23:20:33,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120676316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:33,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:33,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:20:33,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715847467] [2024-11-27 23:20:33,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:33,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:20:33,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:33,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:20:33,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:20:33,537 INFO L87 Difference]: Start difference. First operand 7127 states and 9400 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-27 23:20:33,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:33,858 INFO L93 Difference]: Finished difference Result 14005 states and 18510 transitions. [2024-11-27 23:20:33,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:20:33,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 462 [2024-11-27 23:20:33,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:33,894 INFO L225 Difference]: With dead ends: 14005 [2024-11-27 23:20:33,894 INFO L226 Difference]: Without dead ends: 7127 [2024-11-27 23:20:33,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:20:33,908 INFO L435 NwaCegarLoop]: 1364 mSDtfsCounter, 0 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:33,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2722 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:20:33,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7127 states. [2024-11-27 23:20:34,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7127 to 7127. [2024-11-27 23:20:34,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7127 states, 5298 states have (on average 1.3144582861457155) internal successors, (6964), 5363 states have internal predecessors, (6964), 1209 states have call successors, (1209), 620 states have call predecessors, (1209), 619 states have return successors, (1209), 1194 states have call predecessors, (1209), 1197 states have call successors, (1209) [2024-11-27 23:20:34,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7127 states to 7127 states and 9382 transitions. [2024-11-27 23:20:34,312 INFO L78 Accepts]: Start accepts. Automaton has 7127 states and 9382 transitions. Word has length 462 [2024-11-27 23:20:34,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:34,313 INFO L471 AbstractCegarLoop]: Abstraction has 7127 states and 9382 transitions. [2024-11-27 23:20:34,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-27 23:20:34,313 INFO L276 IsEmpty]: Start isEmpty. Operand 7127 states and 9382 transitions. [2024-11-27 23:20:34,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-27 23:20:34,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:34,327 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:34,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 23:20:34,328 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:34,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:34,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1316659099, now seen corresponding path program 1 times [2024-11-27 23:20:34,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:34,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727141709] [2024-11-27 23:20:34,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:34,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:36,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1266 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1255 trivial. 0 not checked. [2024-11-27 23:20:36,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:36,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727141709] [2024-11-27 23:20:36,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727141709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:36,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:36,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:20:36,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114761145] [2024-11-27 23:20:36,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:36,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:20:36,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:36,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:20:36,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:20:36,241 INFO L87 Difference]: Start difference. First operand 7127 states and 9382 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-27 23:20:40,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:20:40,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:40,614 INFO L93 Difference]: Finished difference Result 14002 states and 18428 transitions. [2024-11-27 23:20:40,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:20:40,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 465 [2024-11-27 23:20:40,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:40,652 INFO L225 Difference]: With dead ends: 14002 [2024-11-27 23:20:40,652 INFO L226 Difference]: Without dead ends: 7085 [2024-11-27 23:20:40,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:20:40,669 INFO L435 NwaCegarLoop]: 1365 mSDtfsCounter, 10 mSDsluCounter, 4081 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5446 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:40,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5446 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-27 23:20:40,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7085 states. [2024-11-27 23:20:41,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7085 to 7027. [2024-11-27 23:20:41,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7027 states, 5225 states have (on average 1.3152153110047846) internal successors, (6872), 5293 states have internal predecessors, (6872), 1192 states have call successors, (1192), 610 states have call predecessors, (1192), 609 states have return successors, (1192), 1174 states have call predecessors, (1192), 1180 states have call successors, (1192) [2024-11-27 23:20:41,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7027 states to 7027 states and 9256 transitions. [2024-11-27 23:20:41,064 INFO L78 Accepts]: Start accepts. Automaton has 7027 states and 9256 transitions. Word has length 465 [2024-11-27 23:20:41,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:41,065 INFO L471 AbstractCegarLoop]: Abstraction has 7027 states and 9256 transitions. [2024-11-27 23:20:41,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-27 23:20:41,066 INFO L276 IsEmpty]: Start isEmpty. Operand 7027 states and 9256 transitions. [2024-11-27 23:20:41,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2024-11-27 23:20:41,079 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:41,079 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:41,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 23:20:41,080 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:41,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:41,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1638244547, now seen corresponding path program 1 times [2024-11-27 23:20:41,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:41,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9665133] [2024-11-27 23:20:41,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:41,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:42,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1266 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1249 trivial. 0 not checked. [2024-11-27 23:20:42,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:42,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9665133] [2024-11-27 23:20:42,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9665133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:42,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:42,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:20:42,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798863777] [2024-11-27 23:20:42,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:42,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:20:42,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:42,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:20:42,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:20:42,872 INFO L87 Difference]: Start difference. First operand 7027 states and 9256 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-27 23:20:43,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:43,136 INFO L93 Difference]: Finished difference Result 9723 states and 12765 transitions. [2024-11-27 23:20:43,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:20:43,137 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 483 [2024-11-27 23:20:43,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:43,168 INFO L225 Difference]: With dead ends: 9723 [2024-11-27 23:20:43,168 INFO L226 Difference]: Without dead ends: 7025 [2024-11-27 23:20:43,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:20:43,178 INFO L435 NwaCegarLoop]: 1364 mSDtfsCounter, 0 mSDsluCounter, 5449 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6813 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:43,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6813 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:20:43,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7025 states. [2024-11-27 23:20:43,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7025 to 7025. [2024-11-27 23:20:43,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7025 states, 5223 states have (on average 1.314953092092667) internal successors, (6868), 5291 states have internal predecessors, (6868), 1192 states have call successors, (1192), 610 states have call predecessors, (1192), 609 states have return successors, (1192), 1174 states have call predecessors, (1192), 1180 states have call successors, (1192) [2024-11-27 23:20:43,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7025 states to 7025 states and 9252 transitions. [2024-11-27 23:20:43,571 INFO L78 Accepts]: Start accepts. Automaton has 7025 states and 9252 transitions. Word has length 483 [2024-11-27 23:20:43,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:43,572 INFO L471 AbstractCegarLoop]: Abstraction has 7025 states and 9252 transitions. [2024-11-27 23:20:43,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-27 23:20:43,572 INFO L276 IsEmpty]: Start isEmpty. Operand 7025 states and 9252 transitions. [2024-11-27 23:20:43,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2024-11-27 23:20:43,586 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:43,586 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:43,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-27 23:20:43,586 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:43,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:43,587 INFO L85 PathProgramCache]: Analyzing trace with hash -335558995, now seen corresponding path program 1 times [2024-11-27 23:20:43,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:43,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195193619] [2024-11-27 23:20:43,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:43,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:45,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1240 trivial. 0 not checked. [2024-11-27 23:20:45,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:45,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195193619] [2024-11-27 23:20:45,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195193619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:45,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:45,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:20:45,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551625993] [2024-11-27 23:20:45,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:45,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:20:45,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:45,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:20:45,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:20:45,215 INFO L87 Difference]: Start difference. First operand 7025 states and 9252 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-27 23:20:45,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:45,563 INFO L93 Difference]: Finished difference Result 13930 states and 18373 transitions. [2024-11-27 23:20:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:20:45,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 491 [2024-11-27 23:20:45,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:45,586 INFO L225 Difference]: With dead ends: 13930 [2024-11-27 23:20:45,586 INFO L226 Difference]: Without dead ends: 7157 [2024-11-27 23:20:45,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:20:45,598 INFO L435 NwaCegarLoop]: 1399 mSDtfsCounter, 23 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 4160 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:45,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 4160 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:20:45,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7157 states. [2024-11-27 23:20:45,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7157 to 7109. [2024-11-27 23:20:45,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7109 states, 5287 states have (on average 1.3141668242859845) internal successors, (6948), 5353 states have internal predecessors, (6948), 1212 states have call successors, (1212), 610 states have call predecessors, (1212), 609 states have return successors, (1214), 1196 states have call predecessors, (1214), 1200 states have call successors, (1214) [2024-11-27 23:20:45,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7109 states to 7109 states and 9374 transitions. [2024-11-27 23:20:45,938 INFO L78 Accepts]: Start accepts. Automaton has 7109 states and 9374 transitions. Word has length 491 [2024-11-27 23:20:45,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:45,938 INFO L471 AbstractCegarLoop]: Abstraction has 7109 states and 9374 transitions. [2024-11-27 23:20:45,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-27 23:20:45,939 INFO L276 IsEmpty]: Start isEmpty. Operand 7109 states and 9374 transitions. [2024-11-27 23:20:45,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2024-11-27 23:20:45,949 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:45,949 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:45,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 23:20:45,949 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:45,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:45,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1715425003, now seen corresponding path program 1 times [2024-11-27 23:20:45,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:45,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461915067] [2024-11-27 23:20:45,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:45,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:47,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1240 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1229 trivial. 0 not checked. [2024-11-27 23:20:47,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:47,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461915067] [2024-11-27 23:20:47,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461915067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:47,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:47,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:20:47,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621446376] [2024-11-27 23:20:47,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:47,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:20:47,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:47,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:20:47,999 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:20:47,999 INFO L87 Difference]: Start difference. First operand 7109 states and 9374 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-27 23:20:52,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:20:52,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:52,757 INFO L93 Difference]: Finished difference Result 17779 states and 23371 transitions. [2024-11-27 23:20:52,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:20:52,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 491 [2024-11-27 23:20:52,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:52,802 INFO L225 Difference]: With dead ends: 17779 [2024-11-27 23:20:52,802 INFO L226 Difference]: Without dead ends: 10922 [2024-11-27 23:20:52,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:20:52,820 INFO L435 NwaCegarLoop]: 2320 mSDtfsCounter, 964 mSDsluCounter, 5984 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 8304 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:52,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 8304 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-27 23:20:52,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10922 states. [2024-11-27 23:20:53,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10922 to 8801. [2024-11-27 23:20:53,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8801 states, 6549 states have (on average 1.3122614139563291) internal successors, (8594), 6633 states have internal predecessors, (8594), 1495 states have call successors, (1495), 756 states have call predecessors, (1495), 756 states have return successors, (1498), 1474 states have call predecessors, (1498), 1483 states have call successors, (1498) [2024-11-27 23:20:53,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8801 states to 8801 states and 11587 transitions. [2024-11-27 23:20:53,242 INFO L78 Accepts]: Start accepts. Automaton has 8801 states and 11587 transitions. Word has length 491 [2024-11-27 23:20:53,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:53,242 INFO L471 AbstractCegarLoop]: Abstraction has 8801 states and 11587 transitions. [2024-11-27 23:20:53,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2024-11-27 23:20:53,242 INFO L276 IsEmpty]: Start isEmpty. Operand 8801 states and 11587 transitions. [2024-11-27 23:20:53,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2024-11-27 23:20:53,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:53,252 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:53,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-27 23:20:53,252 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:53,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:53,252 INFO L85 PathProgramCache]: Analyzing trace with hash -827686376, now seen corresponding path program 1 times [2024-11-27 23:20:53,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:53,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036335611] [2024-11-27 23:20:53,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:53,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:55,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1274 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1274 trivial. 0 not checked. [2024-11-27 23:20:55,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:55,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036335611] [2024-11-27 23:20:55,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036335611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:55,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:55,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:20:55,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125731807] [2024-11-27 23:20:55,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:55,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:20:55,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:55,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:20:55,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:20:55,252 INFO L87 Difference]: Start difference. First operand 8801 states and 11587 transitions. Second operand has 6 states, 6 states have (on average 31.0) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-27 23:20:55,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:55,739 INFO L93 Difference]: Finished difference Result 8900 states and 11683 transitions. [2024-11-27 23:20:55,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:20:55,739 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) Word has length 542 [2024-11-27 23:20:55,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:55,767 INFO L225 Difference]: With dead ends: 8900 [2024-11-27 23:20:55,767 INFO L226 Difference]: Without dead ends: 8557 [2024-11-27 23:20:55,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:20:55,772 INFO L435 NwaCegarLoop]: 1370 mSDtfsCounter, 0 mSDsluCounter, 5466 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6836 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:55,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6836 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:20:55,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8557 states. [2024-11-27 23:20:56,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8557 to 8551. [2024-11-27 23:20:56,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8551 states, 6384 states have (on average 1.31328320802005) internal successors, (8384), 6462 states have internal predecessors, (8384), 1430 states have call successors, (1430), 736 states have call predecessors, (1430), 736 states have return successors, (1434), 1409 states have call predecessors, (1434), 1419 states have call successors, (1434) [2024-11-27 23:20:56,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8551 states to 8551 states and 11248 transitions. [2024-11-27 23:20:56,124 INFO L78 Accepts]: Start accepts. Automaton has 8551 states and 11248 transitions. Word has length 542 [2024-11-27 23:20:56,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:56,125 INFO L471 AbstractCegarLoop]: Abstraction has 8551 states and 11248 transitions. [2024-11-27 23:20:56,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (48), 3 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-27 23:20:56,125 INFO L276 IsEmpty]: Start isEmpty. Operand 8551 states and 11248 transitions. [2024-11-27 23:20:56,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2024-11-27 23:20:56,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:56,136 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:56,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-27 23:20:56,136 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:56,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:56,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1595260448, now seen corresponding path program 1 times [2024-11-27 23:20:56,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:56,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569376987] [2024-11-27 23:20:56,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:56,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:20:57,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1276 trivial. 0 not checked. [2024-11-27 23:20:57,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:20:57,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569376987] [2024-11-27 23:20:57,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569376987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:20:57,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:20:57,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:20:57,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939611649] [2024-11-27 23:20:57,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:20:57,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:20:57,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:20:57,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:20:57,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:20:57,853 INFO L87 Difference]: Start difference. First operand 8551 states and 11248 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2024-11-27 23:20:58,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:20:58,176 INFO L93 Difference]: Finished difference Result 8619 states and 11313 transitions. [2024-11-27 23:20:58,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:20:58,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) Word has length 545 [2024-11-27 23:20:58,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:20:58,203 INFO L225 Difference]: With dead ends: 8619 [2024-11-27 23:20:58,203 INFO L226 Difference]: Without dead ends: 8536 [2024-11-27 23:20:58,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:20:58,207 INFO L435 NwaCegarLoop]: 1369 mSDtfsCounter, 0 mSDsluCounter, 5462 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6831 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:20:58,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6831 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:20:58,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8536 states. [2024-11-27 23:20:58,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8536 to 8536. [2024-11-27 23:20:58,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8536 states, 6377 states have (on average 1.3133134702838325) internal successors, (8375), 6453 states have internal predecessors, (8375), 1422 states have call successors, (1422), 735 states have call predecessors, (1422), 736 states have return successors, (1428), 1404 states have call predecessors, (1428), 1413 states have call successors, (1428) [2024-11-27 23:20:58,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8536 states to 8536 states and 11225 transitions. [2024-11-27 23:20:58,624 INFO L78 Accepts]: Start accepts. Automaton has 8536 states and 11225 transitions. Word has length 545 [2024-11-27 23:20:58,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:20:58,625 INFO L471 AbstractCegarLoop]: Abstraction has 8536 states and 11225 transitions. [2024-11-27 23:20:58,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 5 states have internal predecessors, (185), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2024-11-27 23:20:58,625 INFO L276 IsEmpty]: Start isEmpty. Operand 8536 states and 11225 transitions. [2024-11-27 23:20:58,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2024-11-27 23:20:58,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:20:58,635 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:20:58,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-27 23:20:58,635 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:20:58,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:20:58,635 INFO L85 PathProgramCache]: Analyzing trace with hash -2015801896, now seen corresponding path program 1 times [2024-11-27 23:20:58,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:20:58,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632576227] [2024-11-27 23:20:58,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:20:58,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:20:59,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:21:00,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2024-11-27 23:21:00,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:21:00,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632576227] [2024-11-27 23:21:00,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632576227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:21:00,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:21:00,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:21:00,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720988119] [2024-11-27 23:21:00,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:21:00,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:21:00,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:21:00,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:21:00,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:21:00,239 INFO L87 Difference]: Start difference. First operand 8536 states and 11225 transitions. Second operand has 6 states, 6 states have (on average 33.5) internal successors, (201), 5 states have internal predecessors, (201), 2 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (50), 3 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-27 23:21:00,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:21:00,525 INFO L93 Difference]: Finished difference Result 8853 states and 11517 transitions. [2024-11-27 23:21:00,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:21:00,525 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.5) internal successors, (201), 5 states have internal predecessors, (201), 2 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (50), 3 states have call predecessors, (50), 2 states have call successors, (50) Word has length 563 [2024-11-27 23:21:00,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:21:00,542 INFO L225 Difference]: With dead ends: 8853 [2024-11-27 23:21:00,542 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 23:21:00,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:21:00,553 INFO L435 NwaCegarLoop]: 1318 mSDtfsCounter, 0 mSDsluCounter, 5266 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6584 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:21:00,553 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6584 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:21:00,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 23:21:00,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 23:21:00,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:21:00,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 23:21:00,566 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 563 [2024-11-27 23:21:00,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:21:00,567 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 23:21:00,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.5) internal successors, (201), 5 states have internal predecessors, (201), 2 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (50), 3 states have call predecessors, (50), 2 states have call successors, (50) [2024-11-27 23:21:00,567 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 23:21:00,567 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 23:21:00,570 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 23:21:00,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-27 23:21:00,575 INFO L422 BasicCegarLoop]: Path program histogram: [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] [2024-11-27 23:21:00,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 23:23:02,266 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:23:02,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:23:02 BoogieIcfgContainer [2024-11-27 23:23:02,299 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:23:02,300 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:23:02,300 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:23:02,300 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:23:02,301 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:19:10" (3/4) ... [2024-11-27 23:23:02,303 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 23:23:02,315 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_from_user [2024-11-27 23:23:02,315 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure unregister_console [2024-11-27 23:23:02,315 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_interruptible_port_mutex_of_lp_struct [2024-11-27 23:23:02,315 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int [2024-11-27 23:23:02,315 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_unlock_port_mutex_of_lp_struct [2024-11-27 23:23:02,315 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_set_timeout [2024-11-27 23:23:02,315 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __bad_percpu_size [2024-11-27 23:23:02,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_detach [2024-11-27 23:23:02,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_error [2024-11-27 23:23:02,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parport_set_timeout [2024-11-27 23:23:02,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_lp_mutex [2024-11-27 23:23:02,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2024-11-27 23:23:02,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.meminit [2024-11-27 23:23:02,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~TO~int [2024-11-27 23:23:02,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_negotiate [2024-11-27 23:23:02,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_reset [2024-11-27 23:23:02,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_register [2024-11-27 23:23:02,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_unregister_chrdev_25 [2024-11-27 23:23:02,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure file_inode [2024-11-27 23:23:02,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure get_current [2024-11-27 23:23:02,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_is_err [2024-11-27 23:23:02,316 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_release_parport [2024-11-27 23:23:02,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure signal_pending [2024-11-27 23:23:02,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-27 23:23:02,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure iminor [2024-11-27 23:23:02,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock_interruptible [2024-11-27 23:23:02,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parport_claim_or_block [2024-11-27 23:23:02,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parport_write [2024-11-27 23:23:02,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_do_ioctl [2024-11-27 23:23:02,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure prepare_to_wait [2024-11-27 23:23:02,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-11-27 23:23:02,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure class_destroy [2024-11-27 23:23:02,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_unlock [2024-11-27 23:23:02,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_to_user [2024-11-27 23:23:02,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __might_fault [2024-11-27 23:23:02,317 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-27 23:23:02,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_unlock_lp_mutex [2024-11-27 23:23:02,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure test_ti_thread_flag [2024-11-27 23:23:02,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_wait_ready [2024-11-27 23:23:02,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parport_negotiate [2024-11-27 23:23:02,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-11-27 23:23:02,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parport_release [2024-11-27 23:23:02,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __init_waitqueue_head [2024-11-27 23:23:02,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure schedule_timeout [2024-11-27 23:23:02,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-27 23:23:02,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_init_zalloc [2024-11-27 23:23:02,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_claim_parport_or_block [2024-11-27 23:23:02,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure compat_ptr [2024-11-27 23:23:02,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lp_write [2024-11-27 23:23:02,318 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure test_and_clear_bit [2024-11-27 23:23:02,319 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure test_and_set_bit [2024-11-27 23:23:02,319 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock [2024-11-27 23:23:02,319 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-27 23:23:02,319 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure finish_wait [2024-11-27 23:23:02,319 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_memset [2024-11-27 23:23:02,320 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure parport_yield_blocking [2024-11-27 23:23:02,320 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure IS_ERR [2024-11-27 23:23:02,370 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 280 nodes and edges [2024-11-27 23:23:02,374 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 95 nodes and edges [2024-11-27 23:23:02,378 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-27 23:23:02,383 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-27 23:23:02,387 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 23:23:02,394 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-27 23:23:02,396 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 23:23:02,438 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((ldv_mutex_lp_mutex == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_port_mutex_of_lp_struct == 2)) && (ldv_mutex_lock == 1)) && (\old(ldv_mutex_port_mutex_of_lp_struct) == 1)) && (ldv_retval_0 == 0)) [2024-11-27 23:23:02,439 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((ldv_mutex_lp_mutex == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_port_mutex_of_lp_struct == 2)) && (ldv_mutex_lock == 1)) && (\old(ldv_mutex_port_mutex_of_lp_struct) == 1)) && (ldv_retval_0 == 0)) [2024-11-27 23:23:02,595 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((ldv_mutex_lp_mutex == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_port_mutex_of_lp_struct == 2)) && (ldv_mutex_lock == 1)) && (\old(ldv_mutex_port_mutex_of_lp_struct) == 1)) && (ldv_retval_0 == 0)) [2024-11-27 23:23:02,595 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((ldv_mutex_lp_mutex == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_port_mutex_of_lp_struct == 2)) && (ldv_mutex_lock == 1)) && (\old(ldv_mutex_port_mutex_of_lp_struct) == 1)) && (ldv_retval_0 == 0)) [2024-11-27 23:23:02,668 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:23:02,669 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 23:23:02,669 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:23:02,670 INFO L158 Benchmark]: Toolchain (without parser) took 244358.73ms. Allocated memory was 117.4MB in the beginning and 3.0GB in the end (delta: 2.9GB). Free memory was 85.8MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-27 23:23:02,670 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:23:02,670 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1976.82ms. Allocated memory is still 117.4MB. Free memory was 85.6MB in the beginning and 58.9MB in the end (delta: 26.7MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. [2024-11-27 23:23:02,670 INFO L158 Benchmark]: Boogie Procedure Inliner took 208.01ms. Allocated memory is still 117.4MB. Free memory was 58.9MB in the beginning and 38.3MB in the end (delta: 20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:23:02,670 INFO L158 Benchmark]: Boogie Preprocessor took 543.49ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 38.3MB in the beginning and 133.4MB in the end (delta: -95.1MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2024-11-27 23:23:02,671 INFO L158 Benchmark]: RCFGBuilder took 9799.41ms. Allocated memory is still 209.7MB. Free memory was 133.4MB in the beginning and 89.7MB in the end (delta: 43.7MB). Peak memory consumption was 110.1MB. Max. memory is 16.1GB. [2024-11-27 23:23:02,671 INFO L158 Benchmark]: TraceAbstraction took 231455.38ms. Allocated memory was 209.7MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 88.7MB in the beginning and 1.7GB in the end (delta: -1.7GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2024-11-27 23:23:02,671 INFO L158 Benchmark]: Witness Printer took 368.86ms. Allocated memory is still 3.0GB. Free memory was 1.7GB in the beginning and 1.7GB in the end (delta: 46.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-27 23:23:02,675 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1976.82ms. Allocated memory is still 117.4MB. Free memory was 85.6MB in the beginning and 58.9MB in the end (delta: 26.7MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 208.01ms. Allocated memory is still 117.4MB. Free memory was 58.9MB in the beginning and 38.3MB in the end (delta: 20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 543.49ms. Allocated memory was 117.4MB in the beginning and 209.7MB in the end (delta: 92.3MB). Free memory was 38.3MB in the beginning and 133.4MB in the end (delta: -95.1MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * RCFGBuilder took 9799.41ms. Allocated memory is still 209.7MB. Free memory was 133.4MB in the beginning and 89.7MB in the end (delta: 43.7MB). Peak memory consumption was 110.1MB. Max. memory is 16.1GB. * TraceAbstraction took 231455.38ms. Allocated memory was 209.7MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 88.7MB in the beginning and 1.7GB in the end (delta: -1.7GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. * Witness Printer took 368.86ms. Allocated memory is still 3.0GB. Free memory was 1.7GB in the beginning and 1.7GB in the end (delta: 46.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3376]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3376] - GenericResultAtLocation [Line: 3384]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3384-3385] - GenericResultAtLocation [Line: 3393]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3393-3394] - GenericResultAtLocation [Line: 3402]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [3402-3403] - GenericResultAtLocation [Line: 3421]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3421] - GenericResultAtLocation [Line: 3424]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3424] - GenericResultAtLocation [Line: 3427]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3427] - GenericResultAtLocation [Line: 3430]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3430] - GenericResultAtLocation [Line: 3451]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3451] - GenericResultAtLocation [Line: 3454]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3454] - GenericResultAtLocation [Line: 3457]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3457] - GenericResultAtLocation [Line: 3460]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& cpu_tss.x86_tss.sp0)); [3460] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 5335]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 58 procedures, 994 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 109.6s, OverallIterations: 27, TraceHistogramMax: 16, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.3s, AutomataDifference: 41.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 14363 SdHoareTripleChecker+Valid, 31.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14347 mSDsluCounter, 110806 SdHoareTripleChecker+Invalid, 31.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 71012 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 468 IncrementalHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 39794 mSDtfsCounter, 468 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1830 GetRequests, 1757 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9765occurred in iteration=11, InterpolantAutomatonStates: 118, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.7s AutomataMinimizationTime, 27 MinimizatonAttempts, 2716 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.3s SsaConstructionTime, 4.8s SatisfiabilityAnalysisTime, 15.6s InterpolantComputationTime, 10032 NumberOfCodeBlocks, 9456 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 10634 ConstructedInterpolants, 0 QuantifiedInterpolants, 11984 SizeOfPredicates, 0 NumberOfNonLiveVariables, 16908 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 33 InterpolantComputations, 25 PerfectInterpolantSequences, 25836/25985 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4690]: Location Invariant Derived location invariant: ((((((((ldv_mutex_lp_mutex == 1) && (ldv_state_variable_0 == 1)) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_port_mutex_of_lp_struct == 1)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_lock == 1)) && (ldv_state_variable_3 == 1)) && (ldv_retval_0 == 0)) - InvariantResult [Line: 4550]: Location Invariant Derived location invariant: ((((((ldv_mutex_lp_mutex == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_port_mutex_of_lp_struct == 1)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_lock == 1)) && (ldv_retval_0 == 0)) - InvariantResult [Line: 4030]: Location Invariant Derived location invariant: (((((((ldv_mutex_lp_mutex == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_port_mutex_of_lp_struct == 2)) && (ldv_mutex_lock == 1)) && (\old(ldv_mutex_port_mutex_of_lp_struct) == 1)) && (ldv_retval_0 == 0)) - InvariantResult [Line: 4030]: Location Invariant Derived location invariant: (((((((ldv_mutex_lp_mutex == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_port_mutex_of_lp_struct == 2)) && (ldv_mutex_lock == 1)) && (\old(ldv_mutex_port_mutex_of_lp_struct) == 1)) && (ldv_retval_0 == 0)) - InvariantResult [Line: 4208]: Location Invariant Derived location invariant: ((((((ldv_mutex_lp_mutex == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_port_mutex_of_lp_struct == 2)) && (ldv_mutex_lock == 1)) && (ldv_retval_0 == 0)) - InvariantResult [Line: 4743]: Location Invariant Derived location invariant: ((((((((ldv_mutex_lp_mutex == 1) && (ldv_state_variable_0 == 1)) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_port_mutex_of_lp_struct == 1)) && (ldv_mutex_i_mutex_of_inode == 1)) && (ldv_mutex_lock == 1)) && (ldv_state_variable_3 == 1)) && (ldv_retval_0 == 0)) RESULT: Ultimate proved your program to be correct! [2024-11-27 23:23:02,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef2e0d52-06ab-4ec6-bdb5-e5b134faf7b8/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE