./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-2+token_ring.08.cil-1.c --full-output --witness-type violation_witness --validate ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/pc_sfifo_2.cil-2+token_ring.08.cil-1.yml/witness.yml --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 26998269 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-2+token_ring.08.cil-1.c ./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/pc_sfifo_2.cil-2+token_ring.08.cil-1.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --preprocessor.replace.while.statements.and.if-then-else.statements false --icfgbuilder.size.of.a.code.block SequenceOfStatements --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.yaml-violation-witnesses-2699826-m [2024-08-14 14:15:57,609 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-08-14 14:15:57,659 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-08-14 14:15:57,664 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-08-14 14:15:57,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-08-14 14:15:57,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-08-14 14:15:57,687 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-08-14 14:15:57,688 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-08-14 14:15:57,688 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-08-14 14:15:57,689 INFO L153 SettingsManager]: * Use memory slicer=true [2024-08-14 14:15:57,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-08-14 14:15:57,689 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-08-14 14:15:57,690 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-08-14 14:15:57,690 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-08-14 14:15:57,692 INFO L153 SettingsManager]: * Use SBE=true [2024-08-14 14:15:57,692 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-08-14 14:15:57,692 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-08-14 14:15:57,693 INFO L153 SettingsManager]: * sizeof long=4 [2024-08-14 14:15:57,693 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-08-14 14:15:57,695 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-08-14 14:15:57,696 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-08-14 14:15:57,696 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-08-14 14:15:57,696 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-08-14 14:15:57,696 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-08-14 14:15:57,697 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-08-14 14:15:57,697 INFO L153 SettingsManager]: * sizeof long double=12 [2024-08-14 14:15:57,697 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-08-14 14:15:57,697 INFO L153 SettingsManager]: * Use constant arrays=true [2024-08-14 14:15:57,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-08-14 14:15:57,698 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-08-14 14:15:57,698 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-08-14 14:15:57,698 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-08-14 14:15:57,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-08-14 14:15:57,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-08-14 14:15:57,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-08-14 14:15:57,698 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-08-14 14:15:57,699 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-08-14 14:15:57,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-08-14 14:15:57,699 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-08-14 14:15:57,699 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-08-14 14:15:57,699 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-08-14 14:15:57,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-08-14 14:15:57,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-08-14 14:15:57,701 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder: Size of a code block -> SequenceOfStatements [2024-08-14 14:15:57,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-08-14 14:15:57,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-08-14 14:15:57,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-08-14 14:15:57,905 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-08-14 14:15:57,906 INFO L274 PluginConnector]: Witness Parser initialized [2024-08-14 14:15:57,907 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./svcomp-yaml-violation-generation.2024-08-01_14-26-22.files/Default/pc_sfifo_2.cil-2+token_ring.08.cil-1.yml/witness.yml [2024-08-14 14:15:58,000 INFO L270 PluginConnector]: Initializing CDTParser... [2024-08-14 14:15:58,001 INFO L274 PluginConnector]: CDTParser initialized [2024-08-14 14:15:58,001 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_2.cil-2+token_ring.08.cil-1.c [2024-08-14 14:15:59,147 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-08-14 14:15:59,340 INFO L384 CDTParser]: Found 1 translation units. [2024-08-14 14:15:59,340 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-2+token_ring.08.cil-1.c [2024-08-14 14:15:59,350 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c2ce4571/e993d60cce974abc85289466d7339ad0/FLAGd5ad25eea [2024-08-14 14:15:59,722 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c2ce4571/e993d60cce974abc85289466d7339ad0 [2024-08-14 14:15:59,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-08-14 14:15:59,723 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-08-14 14:15:59,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-08-14 14:15:59,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-08-14 14:15:59,729 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-08-14 14:15:59,729 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:15:57" (1/2) ... [2024-08-14 14:15:59,730 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb1890e and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:15:59, skipping insertion in model container [2024-08-14 14:15:59,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:15:57" (1/2) ... [2024-08-14 14:15:59,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4e99078f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator VIOLATION_WITNESS 14.08 02:15:59, skipping insertion in model container [2024-08-14 14:15:59,731 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:15:59" (2/2) ... [2024-08-14 14:15:59,731 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb1890e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:15:59, skipping insertion in model container [2024-08-14 14:15:59,731 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 02:15:59" (2/2) ... [2024-08-14 14:15:59,783 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-08-14 14:15:59,913 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-2+token_ring.08.cil-1.c[914,927] [2024-08-14 14:15:59,966 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-2+token_ring.08.cil-1.c[7125,7138] [2024-08-14 14:16:00,051 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:16:00,064 INFO L200 MainTranslator]: Completed pre-run [2024-08-14 14:16:00,073 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-2+token_ring.08.cil-1.c[914,927] [2024-08-14 14:16:00,093 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_2.cil-2+token_ring.08.cil-1.c[7125,7138] [2024-08-14 14:16:00,116 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-08-14 14:16:00,135 INFO L204 MainTranslator]: Completed translation [2024-08-14 14:16:00,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:00 WrapperNode [2024-08-14 14:16:00,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-08-14 14:16:00,136 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-08-14 14:16:00,136 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-08-14 14:16:00,136 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-08-14 14:16:00,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:00" (1/1) ... [2024-08-14 14:16:00,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:00" (1/1) ... [2024-08-14 14:16:00,156 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:00" (1/1) ... [2024-08-14 14:16:00,176 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-08-14 14:16:00,176 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:00" (1/1) ... [2024-08-14 14:16:00,177 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:00" (1/1) ... [2024-08-14 14:16:00,189 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:00" (1/1) ... [2024-08-14 14:16:00,191 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:00" (1/1) ... [2024-08-14 14:16:00,192 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:00" (1/1) ... [2024-08-14 14:16:00,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-08-14 14:16:00,196 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-08-14 14:16:00,196 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-08-14 14:16:00,196 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-08-14 14:16:00,197 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:00" (1/1) ... [2024-08-14 14:16:00,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-08-14 14:16:00,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-08-14 14:16:00,223 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-08-14 14:16:00,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-08-14 14:16:00,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-08-14 14:16:00,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-08-14 14:16:00,274 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-08-14 14:16:00,274 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2024-08-14 14:16:00,274 INFO L138 BoogieDeclarations]: Found implementation of procedure update_fifo_q [2024-08-14 14:16:00,275 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2024-08-14 14:16:00,275 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2024-08-14 14:16:00,275 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2024-08-14 14:16:00,276 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2024-08-14 14:16:00,276 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2024-08-14 14:16:00,276 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels1 [2024-08-14 14:16:00,276 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads1 [2024-08-14 14:16:00,276 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2024-08-14 14:16:00,276 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events1 [2024-08-14 14:16:00,277 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events1 [2024-08-14 14:16:00,277 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads1 [2024-08-14 14:16:00,277 INFO L138 BoogieDeclarations]: Found implementation of procedure eval1 [2024-08-14 14:16:00,277 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation1 [2024-08-14 14:16:00,277 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation1 [2024-08-14 14:16:00,277 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model1 [2024-08-14 14:16:00,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main1 [2024-08-14 14:16:00,277 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2024-08-14 14:16:00,277 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2024-08-14 14:16:00,278 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2024-08-14 14:16:00,278 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2024-08-14 14:16:00,278 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2024-08-14 14:16:00,278 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2024-08-14 14:16:00,279 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2024-08-14 14:16:00,279 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2024-08-14 14:16:00,279 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2024-08-14 14:16:00,279 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2024-08-14 14:16:00,279 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2024-08-14 14:16:00,279 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2024-08-14 14:16:00,280 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2024-08-14 14:16:00,280 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2024-08-14 14:16:00,280 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2024-08-14 14:16:00,280 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2024-08-14 14:16:00,280 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2024-08-14 14:16:00,280 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2024-08-14 14:16:00,280 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2024-08-14 14:16:00,280 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2024-08-14 14:16:00,280 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads2 [2024-08-14 14:16:00,280 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2024-08-14 14:16:00,281 INFO L138 BoogieDeclarations]: Found implementation of procedure eval2 [2024-08-14 14:16:00,281 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2024-08-14 14:16:00,281 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2024-08-14 14:16:00,281 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2024-08-14 14:16:00,281 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-08-14 14:16:00,281 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events2 [2024-08-14 14:16:00,281 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events2 [2024-08-14 14:16:00,281 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model2 [2024-08-14 14:16:00,281 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation2 [2024-08-14 14:16:00,281 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation2 [2024-08-14 14:16:00,281 INFO L138 BoogieDeclarations]: Found implementation of procedure main2 [2024-08-14 14:16:00,281 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-08-14 14:16:00,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-08-14 14:16:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2024-08-14 14:16:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-08-14 14:16:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2024-08-14 14:16:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2024-08-14 14:16:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2024-08-14 14:16:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2024-08-14 14:16:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-08-14 14:16:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-08-14 14:16:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-08-14 14:16:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-08-14 14:16:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2024-08-14 14:16:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure update_fifo_q [2024-08-14 14:16:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2024-08-14 14:16:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2024-08-14 14:16:00,282 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2024-08-14 14:16:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2024-08-14 14:16:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2024-08-14 14:16:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels1 [2024-08-14 14:16:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads1 [2024-08-14 14:16:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2024-08-14 14:16:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events1 [2024-08-14 14:16:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events1 [2024-08-14 14:16:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads1 [2024-08-14 14:16:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure eval1 [2024-08-14 14:16:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation1 [2024-08-14 14:16:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation1 [2024-08-14 14:16:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure init_model1 [2024-08-14 14:16:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure main1 [2024-08-14 14:16:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2024-08-14 14:16:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2024-08-14 14:16:00,283 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2024-08-14 14:16:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2024-08-14 14:16:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2024-08-14 14:16:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2024-08-14 14:16:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2024-08-14 14:16:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2024-08-14 14:16:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2024-08-14 14:16:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2024-08-14 14:16:00,284 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-08-14 14:16:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure master [2024-08-14 14:16:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2024-08-14 14:16:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2024-08-14 14:16:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2024-08-14 14:16:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2024-08-14 14:16:00,285 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2024-08-14 14:16:00,286 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2024-08-14 14:16:00,286 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2024-08-14 14:16:00,286 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2024-08-14 14:16:00,286 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2024-08-14 14:16:00,286 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads2 [2024-08-14 14:16:00,286 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2024-08-14 14:16:00,286 INFO L130 BoogieDeclarations]: Found specification of procedure eval2 [2024-08-14 14:16:00,286 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2024-08-14 14:16:00,286 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2024-08-14 14:16:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2024-08-14 14:16:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events2 [2024-08-14 14:16:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events2 [2024-08-14 14:16:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure init_model2 [2024-08-14 14:16:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation2 [2024-08-14 14:16:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation2 [2024-08-14 14:16:00,287 INFO L130 BoogieDeclarations]: Found specification of procedure main2 [2024-08-14 14:16:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-08-14 14:16:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-08-14 14:16:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-08-14 14:16:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-08-14 14:16:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-08-14 14:16:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-08-14 14:16:00,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-08-14 14:16:00,388 INFO L273 CfgBuilder]: Building ICFG [2024-08-14 14:16:00,390 INFO L304 CfgBuilder]: Building CFG for each procedure with an implementation [2024-08-14 14:16:01,066 INFO L? ?]: Removed 93 outVars from TransFormulas that were not future-live. [2024-08-14 14:16:01,066 INFO L327 CfgBuilder]: Performing block encoding [2024-08-14 14:16:01,085 INFO L349 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-08-14 14:16:01,085 INFO L354 CfgBuilder]: Removed 0 assume(true) statements. [2024-08-14 14:16:01,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:16:01 BoogieIcfgContainer [2024-08-14 14:16:01,085 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-08-14 14:16:01,087 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-08-14 14:16:01,087 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-08-14 14:16:01,090 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-08-14 14:16:01,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser VIOLATION_WITNESS 14.08 02:15:57" (1/4) ... [2024-08-14 14:16:01,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90c8555 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction VIOLATION_WITNESS 14.08 02:16:01, skipping insertion in model container [2024-08-14 14:16:01,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.08 02:15:59" (2/4) ... [2024-08-14 14:16:01,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90c8555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:16:01, skipping insertion in model container [2024-08-14 14:16:01,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 02:16:00" (3/4) ... [2024-08-14 14:16:01,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@90c8555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.08 02:16:01, skipping insertion in model container [2024-08-14 14:16:01,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.08 02:16:01" (4/4) ... [2024-08-14 14:16:01,093 INFO L119 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2.cil-2+token_ring.08.cil-1.c [2024-08-14 14:16:01,094 WARN L130 eAbstractionObserver]: Found a witness in the YAML format. I will only consider traces that are accepted by the witness [2024-08-14 14:16:01,132 INFO L221 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-08-14 14:16:01,132 INFO L180 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-08-14 14:16:01,168 INFO L92 WitnessUtils]: Constructing product of automaton with 523 states and violation witness of the following lengths: [39] [2024-08-14 14:16:01,173 INFO L82 GeneralOperation]: Start removeDeadEnds. Operand has 523 states, 391 states have (on average 1.5294117647058822) internal successors, (598), 412 states have internal predecessors, (598), 76 states have call successors, (76), 52 states have call predecessors, (76), 52 states have return successors, (76), 74 states have call predecessors, (76), 76 states have call successors, (76) [2024-08-14 14:16:02,164 INFO L88 GeneralOperation]: Finished removeDeadEnds. Reduced from 2372 states to 0 states. [2024-08-14 14:16:02,180 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-08-14 14:16:02,188 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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;@42d94b64, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-08-14 14:16:02,188 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-08-14 14:16:02,189 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2024-08-14 14:16:02,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-08-14 14:16:02,192 INFO L805 garLoopResultBuilder]: Registering result SAFE for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-08-14 14:16:02,194 INFO L805 garLoopResultBuilder]: Registering result SAFE for location error2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-08-14 14:16:02,198 INFO L445 BasicCegarLoop]: Path program histogram: [] [2024-08-14 14:16:02,200 INFO L196 ceAbstractionStarter]: Computing trace abstraction results [2024-08-14 14:16:02,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.08 02:16:02 BoogieIcfgContainer [2024-08-14 14:16:02,203 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-08-14 14:16:02,204 INFO L158 Benchmark]: Toolchain (without parser) took 2480.77ms. Allocated memory was 172.0MB in the beginning and 291.5MB in the end (delta: 119.5MB). Free memory was 97.5MB in the beginning and 246.3MB in the end (delta: -148.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:16:02,205 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 172.0MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:16:02,205 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 172.0MB. Free memory is still 142.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:16:02,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 411.81ms. Allocated memory is still 172.0MB. Free memory was 97.3MB in the beginning and 122.9MB in the end (delta: -25.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2024-08-14 14:16:02,206 INFO L158 Benchmark]: Boogie Preprocessor took 59.21ms. Allocated memory is still 172.0MB. Free memory was 122.9MB in the beginning and 118.1MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-08-14 14:16:02,206 INFO L158 Benchmark]: IcfgBuilder took 889.52ms. Allocated memory is still 172.0MB. Free memory was 118.1MB in the beginning and 51.8MB in the end (delta: 66.3MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-08-14 14:16:02,207 INFO L158 Benchmark]: TraceAbstraction took 1115.89ms. Allocated memory was 172.0MB in the beginning and 291.5MB in the end (delta: 119.5MB). Free memory was 51.0MB in the beginning and 246.3MB in the end (delta: -195.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-08-14 14:16:02,209 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.16ms. Allocated memory is still 172.0MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.12ms. Allocated memory is still 172.0MB. Free memory is still 142.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 411.81ms. Allocated memory is still 172.0MB. Free memory was 97.3MB in the beginning and 122.9MB in the end (delta: -25.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.21ms. Allocated memory is still 172.0MB. Free memory was 122.9MB in the beginning and 118.1MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * IcfgBuilder took 889.52ms. Allocated memory is still 172.0MB. Free memory was 118.1MB in the beginning and 51.8MB in the end (delta: 66.3MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1115.89ms. Allocated memory was 172.0MB in the beginning and 291.5MB in the end (delta: 119.5MB). Free memory was 51.0MB in the beginning and 246.3MB in the end (delta: -195.3MB). There was no memory consumed. Max. memory is 16.1GB. * 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: 28]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 496]: 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 55 procedures, 528 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-08-14 14:16:02,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (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