./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/systemc/token_ring.03.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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/AutomizerTermination.xml -i ../sv-benchmarks/c/systemc/token_ring.03.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4996a252ab084c920e1b9a19c3119ce328d4cb97d6d45029062c9dac50449e19 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 23:19:16,999 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 23:19:17,070 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-10 23:19:17,075 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 23:19:17,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 23:19:17,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2024-11-10 23:19:17,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 23:19:17,106 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 23:19:17,106 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 23:19:17,108 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 23:19:17,108 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 23:19:17,109 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 23:19:17,110 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 23:19:17,111 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 23:19:17,112 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-10 23:19:17,112 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-10 23:19:17,112 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-10 23:19:17,112 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-10 23:19:17,113 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-10 23:19:17,113 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-10 23:19:17,113 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 23:19:17,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-10 23:19:17,116 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 23:19:17,116 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 23:19:17,117 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 23:19:17,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 23:19:17,117 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-10 23:19:17,117 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-10 23:19:17,118 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-10 23:19:17,118 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 23:19:17,118 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 23:19:17,118 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 23:19:17,119 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 23:19:17,119 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-10 23:19:17,119 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 23:19:17,119 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 23:19:17,120 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 23:19:17,120 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 23:19:17,121 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 23:19:17,121 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-10 23:19:17,122 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4996a252ab084c920e1b9a19c3119ce328d4cb97d6d45029062c9dac50449e19 [2024-11-10 23:19:17,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 23:19:17,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 23:19:17,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 23:19:17,462 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 23:19:17,463 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 23:19:17,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.03.cil-2.c [2024-11-10 23:19:18,875 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 23:19:19,071 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 23:19:19,072 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.03.cil-2.c [2024-11-10 23:19:19,086 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81cb143dd/d5237b951b8946f79a6814c9c1c3074b/FLAG429678416 [2024-11-10 23:19:19,100 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81cb143dd/d5237b951b8946f79a6814c9c1c3074b [2024-11-10 23:19:19,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 23:19:19,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 23:19:19,105 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 23:19:19,105 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 23:19:19,110 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 23:19:19,110 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:19:19" (1/1) ... [2024-11-10 23:19:19,111 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@489f6762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:19, skipping insertion in model container [2024-11-10 23:19:19,111 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:19:19" (1/1) ... [2024-11-10 23:19:19,148 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 23:19:19,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:19:19,388 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 23:19:19,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 23:19:19,446 INFO L204 MainTranslator]: Completed translation [2024-11-10 23:19:19,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:19 WrapperNode [2024-11-10 23:19:19,447 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 23:19:19,448 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 23:19:19,448 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 23:19:19,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 23:19:19,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:19" (1/1) ... [2024-11-10 23:19:19,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:19" (1/1) ... [2024-11-10 23:19:19,506 INFO L138 Inliner]: procedures = 34, calls = 41, calls flagged for inlining = 36, calls inlined = 63, statements flattened = 816 [2024-11-10 23:19:19,506 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 23:19:19,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 23:19:19,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 23:19:19,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 23:19:19,519 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:19" (1/1) ... [2024-11-10 23:19:19,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:19" (1/1) ... [2024-11-10 23:19:19,525 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:19" (1/1) ... [2024-11-10 23:19:19,541 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]. [2024-11-10 23:19:19,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:19" (1/1) ... [2024-11-10 23:19:19,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:19" (1/1) ... [2024-11-10 23:19:19,558 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:19" (1/1) ... [2024-11-10 23:19:19,563 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:19" (1/1) ... [2024-11-10 23:19:19,565 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:19" (1/1) ... [2024-11-10 23:19:19,570 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:19" (1/1) ... [2024-11-10 23:19:19,577 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 23:19:19,578 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 23:19:19,578 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 23:19:19,581 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 23:19:19,586 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:19" (1/1) ... [2024-11-10 23:19:19,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-10 23:19:19,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 23:19:19,625 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) [2024-11-10 23:19:19,633 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 [2024-11-10 23:19:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 23:19:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 23:19:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 23:19:19,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 23:19:19,777 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 23:19:19,780 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 23:19:20,597 INFO L? ?]: Removed 144 outVars from TransFormulas that were not future-live. [2024-11-10 23:19:20,598 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 23:19:20,629 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 23:19:20,632 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 23:19:20,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:19:20 BoogieIcfgContainer [2024-11-10 23:19:20,633 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 23:19:20,634 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-10 23:19:20,634 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-10 23:19:20,638 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-10 23:19:20,640 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:19:20,641 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 11:19:19" (1/3) ... [2024-11-10 23:19:20,642 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12005fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:19:20, skipping insertion in model container [2024-11-10 23:19:20,642 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:19:20,642 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:19:19" (2/3) ... [2024-11-10 23:19:20,642 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12005fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 11:19:20, skipping insertion in model container [2024-11-10 23:19:20,643 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-10 23:19:20,643 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 11:19:20" (3/3) ... [2024-11-10 23:19:20,645 INFO L332 chiAutomizerObserver]: Analyzing ICFG token_ring.03.cil-2.c [2024-11-10 23:19:20,714 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-10 23:19:20,714 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-10 23:19:20,714 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-10 23:19:20,714 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-10 23:19:20,714 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-10 23:19:20,714 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-10 23:19:20,714 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-10 23:19:20,715 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-10 23:19:20,719 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 372 states, 343 states have (on average 1.530612244897959) internal successors, (525), 371 states have internal predecessors, (525), 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) [2024-11-10 23:19:20,757 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 260 [2024-11-10 23:19:20,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:19:20,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:19:20,767 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:19:20,767 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:19:20,767 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-10 23:19:20,768 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 372 states, 343 states have (on average 1.530612244897959) internal successors, (525), 371 states have internal predecessors, (525), 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) [2024-11-10 23:19:20,777 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 260 [2024-11-10 23:19:20,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-10 23:19:20,777 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-10 23:19:20,779 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:19:20,779 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 23:19:20,787 INFO L745 eck$LassoCheckResult]: Stem: 353#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2);call #Ultimate.allocInit(12, 3);~m_pc~0 := 0;~t1_pc~0 := 0;~t2_pc~0 := 0;~t3_pc~0 := 0;~m_st~0 := 0;~t1_st~0 := 0;~t2_st~0 := 0;~t3_st~0 := 0;~m_i~0 := 0;~t1_i~0 := 0;~t2_i~0 := 0;~t3_i~0 := 0;~M_E~0 := 2;~T1_E~0 := 2;~T2_E~0 := 2;~T3_E~0 := 2;~E_M~0 := 2;~E_1~0 := 2;~E_2~0 := 2;~E_3~0 := 2;~token~0 := 0;~local~0 := 0; 50#ULTIMATE.init_returnLabel#1true assume true;assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~5#1;havoc main_~__retres1~5#1;assume { :begin_inline_init_model } true;~m_i~0 := 1;~t1_i~0 := 1;~t2_i~0 := 1;~t3_i~0 := 1; 236#L641true assume true;assume { :end_inline_init_model } true;assume { :begin_inline_start_simulation } true;havoc start_simulation_#t~ret15#1, start_simulation_#t~ret16#1, start_simulation_~kernel_st~0#1, start_simulation_~tmp~3#1, start_simulation_~tmp___0~1#1;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~tmp~3#1;havoc start_simulation_~tmp___0~1#1;start_simulation_~kernel_st~0#1 := 0;assume { :begin_inline_update_channels } true; 86#L285-1true assume true;assume { :end_inline_update_channels } true;assume { :begin_inline_init_threads } true; 139#L292true assume !(1 == ~m_i~0);~m_st~0 := 2; 58#L297true assume !(1 == ~t1_i~0);~t1_st~0 := 2; 290#L302true assume !(1 == ~t2_i~0);~t2_st~0 := 2; 282#L307true assume !(1 == ~t3_i~0);~t3_st~0 := 2; 46#L313true assume true;assume { :end_inline_init_threads } true;assume { :begin_inline_fire_delta_events } true; 256#L429-1true assume !(0 == ~M_E~0); 172#L434-1true assume !(0 == ~T1_E~0); 240#L439-1true assume !(0 == ~T2_E~0); 192#L444-1true assume !(0 == ~T3_E~0); 306#L449-1true assume !(0 == ~E_M~0); 82#L454-1true assume !(0 == ~E_1~0); 331#L459-1true assume !(0 == ~E_2~0); 57#L464-1true assume !(0 == ~E_3~0); 276#L470-1true assume true;assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 114#L208-6true assume 1 == ~m_pc~0; 200#L209-6true assume !(1 == ~E_M~0);is_master_triggered_~__retres1~0#1 := 0; 49#L211-6true assume true;is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 293#L220-6true assume true;activate_threads_#t~ret10#1 := is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 227#L531-6true assume !(0 != activate_threads_~tmp~1#1); 129#L537-6true assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 265#L227-6true assume 1 == ~t1_pc~0; 244#L228-6true assume !(1 == ~E_1~0);is_transmit1_triggered_~__retres1~1#1 := 0; 145#L230-6true assume true;is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 99#L239-6true assume true;activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 42#L539-6true assume !(0 != activate_threads_~tmp___0~0#1); 363#L545-6true assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 245#L246-6true assume 1 == ~t2_pc~0; 37#L247-6true assume 1 == ~E_2~0;is_transmit2_triggered_~__retres1~2#1 := 1; 18#L249-6true assume true;is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 30#L258-6true assume true;activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 361#L547-6true assume !(0 != activate_threads_~tmp___1~0#1); 153#L553-6true assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 364#L265-6true assume 1 == ~t3_pc~0; 197#L266-6true assume !(1 == ~E_3~0);is_transmit3_triggered_~__retres1~3#1 := 0; 16#L268-6true assume true;is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 201#L277-6true assume true;activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 333#L555-6true assume !(0 != activate_threads_~tmp___2~0#1); 133#L561-6true assume true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 142#L477-1true assume !(1 == ~M_E~0); 231#L482-1true assume !(1 == ~T1_E~0); 190#L487-1true assume !(1 == ~T2_E~0); 284#L492-1true assume !(1 == ~T3_E~0); 61#L497-1true assume 1 == ~E_M~0;~E_M~0 := 2; 169#L502-1true assume !(1 == ~E_1~0); 43#L507-1true assume !(1 == ~E_2~0); 141#L512-1true assume !(1 == ~E_3~0); 224#L518-1true assume true;assume { :end_inline_reset_delta_events } true; 154#L678true [2024-11-10 23:19:20,789 INFO L747 eck$LassoCheckResult]: Loop: 154#L678true assume true; 266#L678-1true assume !false;assume true;start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;havoc eval_~tmp~0#1; 319#L352true assume !true; 36#L360true assume true; 205#L422true assume true;havoc eval_#t~ret5#1, eval_#t~nondet6#1, eval_~tmp_ndt_1~0#1, eval_#t~nondet7#1, eval_~tmp_ndt_2~0#1, eval_#t~nondet8#1, eval_~tmp_ndt_3~0#1, eval_#t~nondet9#1, eval_~tmp_ndt_4~0#1, eval_~tmp~0#1;assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;assume { :begin_inline_update_channels } true; 341#L285true assume true;assume { :end_inline_update_channels } true;start_simulation_~kernel_st~0#1 := 3;assume { :begin_inline_fire_delta_events } true; 287#L429true assume 0 == ~M_E~0;~M_E~0 := 1; 33#L434true assume 0 == ~T1_E~0;~T1_E~0 := 1; 252#L439true assume 0 == ~T2_E~0;~T2_E~0 := 1; 150#L444true assume 0 == ~T3_E~0;~T3_E~0 := 1; 107#L449true assume 0 == ~E_M~0;~E_M~0 := 1; 3#L454true assume 0 == ~E_1~0;~E_1~0 := 1; 10#L459true assume !(0 == ~E_2~0); 326#L464true assume 0 == ~E_3~0;~E_3~0 := 1; 160#L470true assume true;assume { :end_inline_fire_delta_events } true;assume { :begin_inline_activate_threads } true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;havoc activate_threads_~tmp~1#1;havoc activate_threads_~tmp___0~0#1;havoc activate_threads_~tmp___1~0#1;havoc activate_threads_~tmp___2~0#1;assume { :begin_inline_is_master_triggered } true;havoc is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;havoc is_master_triggered_~__retres1~0#1; 249#L208-1true assume 1 == ~m_pc~0; 180#L209-1true assume 1 == ~E_M~0;is_master_triggered_~__retres1~0#1 := 1; 329#L211-1true assume true;is_master_triggered_#res#1 := is_master_triggered_~__retres1~0#1; 164#L220-1true assume true;activate_threads_#t~ret10#1 := is_master_triggered_#res#1;havoc is_master_triggered_~__retres1~0#1;assume { :end_inline_is_master_triggered } true;activate_threads_~tmp~1#1 := activate_threads_#t~ret10#1;havoc activate_threads_#t~ret10#1; 19#L531-1true assume !(0 != activate_threads_~tmp~1#1); 292#L537-1true assume { :begin_inline_is_transmit1_triggered } true;havoc is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;havoc is_transmit1_triggered_~__retres1~1#1; 40#L227-1true assume 1 == ~t1_pc~0; 88#L228-1true assume 1 == ~E_1~0;is_transmit1_triggered_~__retres1~1#1 := 1; 179#L230-1true assume true;is_transmit1_triggered_#res#1 := is_transmit1_triggered_~__retres1~1#1; 44#L239-1true assume true;activate_threads_#t~ret11#1 := is_transmit1_triggered_#res#1;havoc is_transmit1_triggered_~__retres1~1#1;assume { :end_inline_is_transmit1_triggered } true;activate_threads_~tmp___0~0#1 := activate_threads_#t~ret11#1;havoc activate_threads_#t~ret11#1; 84#L539-1true assume 0 != activate_threads_~tmp___0~0#1;~t1_st~0 := 0; 371#L545-1true assume { :begin_inline_is_transmit2_triggered } true;havoc is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;havoc is_transmit2_triggered_~__retres1~2#1; 41#L246-1true assume 1 == ~t2_pc~0; 338#L247-1true assume 1 == ~E_2~0;is_transmit2_triggered_~__retres1~2#1 := 1; 269#L249-1true assume true;is_transmit2_triggered_#res#1 := is_transmit2_triggered_~__retres1~2#1; 21#L258-1true assume true;activate_threads_#t~ret12#1 := is_transmit2_triggered_#res#1;havoc is_transmit2_triggered_~__retres1~2#1;assume { :end_inline_is_transmit2_triggered } true;activate_threads_~tmp___1~0#1 := activate_threads_#t~ret12#1;havoc activate_threads_#t~ret12#1; 307#L547-1true assume 0 != activate_threads_~tmp___1~0#1;~t2_st~0 := 0; 298#L553-1true assume { :begin_inline_is_transmit3_triggered } true;havoc is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;havoc is_transmit3_triggered_~__retres1~3#1; 347#L265-1true assume 1 == ~t3_pc~0; 220#L266-1true assume !(1 == ~E_3~0);is_transmit3_triggered_~__retres1~3#1 := 0; 108#L268-1true assume true;is_transmit3_triggered_#res#1 := is_transmit3_triggered_~__retres1~3#1; 264#L277-1true assume true;activate_threads_#t~ret13#1 := is_transmit3_triggered_#res#1;havoc is_transmit3_triggered_~__retres1~3#1;assume { :end_inline_is_transmit3_triggered } true;activate_threads_~tmp___2~0#1 := activate_threads_#t~ret13#1;havoc activate_threads_#t~ret13#1; 59#L555-1true assume 0 != activate_threads_~tmp___2~0#1;~t3_st~0 := 0; 302#L561-1true assume true;havoc activate_threads_#t~ret10#1, activate_threads_#t~ret11#1, activate_threads_#t~ret12#1, activate_threads_#t~ret13#1, activate_threads_~tmp~1#1, activate_threads_~tmp___0~0#1, activate_threads_~tmp___1~0#1, activate_threads_~tmp___2~0#1;assume { :end_inline_activate_threads } true;assume { :begin_inline_reset_delta_events } true; 217#L477true assume 1 == ~M_E~0;~M_E~0 := 2; 260#L482true assume 1 == ~T1_E~0;~T1_E~0 := 2; 203#L487true assume 1 == ~T2_E~0;~T2_E~0 := 2; 348#L492true assume 1 == ~T3_E~0;~T3_E~0 := 2; 355#L497true assume 1 == ~E_M~0;~E_M~0 := 2; 69#L502true assume 1 == ~E_1~0;~E_1~0 := 2; 210#L507true assume 1 == ~E_2~0;~E_2~0 := 2; 204#L512true assume 1 == ~E_3~0;~E_3~0 := 2; 13#L518true assume true;assume { :end_inline_reset_delta_events } true;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 48#L320-1true assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 229#L334-1true assume true;exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 73#L343-1true assume true;start_simulation_#t~ret15#1 := exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;assume { :end_inline_exists_runnable_thread } true;start_simulation_~tmp~3#1 := start_simulation_#t~ret15#1;havoc start_simulation_#t~ret15#1; 225#L697true assume !(0 == start_simulation_~tmp~3#1); 22#L708true assume { :begin_inline_stop_simulation } true;havoc stop_simulation_#res#1;havoc stop_simulation_#t~ret14#1, stop_simulation_~tmp~2#1, stop_simulation_~__retres2~0#1;havoc stop_simulation_~tmp~2#1;havoc stop_simulation_~__retres2~0#1;assume { :begin_inline_exists_runnable_thread } true;havoc exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;havoc exists_runnable_thread_~__retres1~4#1; 127#L320true assume 0 == ~m_st~0;exists_runnable_thread_~__retres1~4#1 := 1; 60#L334true assume true;exists_runnable_thread_#res#1 := exists_runnable_thread_~__retres1~4#1; 299#L343true assume true;stop_simulation_#t~ret14#1 := exists_runnable_thread_#res#1;havoc exists_runnable_thread_~__retres1~4#1;assume { :end_inline_exists_runnable_thread } true;stop_simulation_~tmp~2#1 := stop_simulation_#t~ret14#1;havoc stop_simulation_#t~ret14#1; 370#L652true assume 0 != stop_simulation_~tmp~2#1;stop_simulation_~__retres2~0#1 := 0; 162#L654true assume true;stop_simulation_#res#1 := stop_simulation_~__retres2~0#1; 303#L660true assume true;start_simulation_#t~ret16#1 := stop_simulation_#res#1;havoc stop_simulation_#t~ret14#1, stop_simulation_~tmp~2#1, stop_simulation_~__retres2~0#1;assume { :end_inline_stop_simulation } true;start_simulation_~tmp___0~1#1 := start_simulation_#t~ret16#1;havoc start_simulation_#t~ret16#1; 109#L710true assume !(0 != start_simulation_~tmp___0~1#1); 154#L678true [2024-11-10 23:19:20,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:19:20,796 INFO L85 PathProgramCache]: Analyzing trace with hash -923799947, now seen corresponding path program 1 times [2024-11-10 23:19:20,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:19:20,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452080091] [2024-11-10 23:19:20,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:19:20,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:19:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:19:21,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:19:21,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:19:21,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452080091] [2024-11-10 23:19:21,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452080091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:19:21,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:19:21,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 23:19:21,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505613449] [2024-11-10 23:19:21,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:19:21,055 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-11-10 23:19:21,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 23:19:21,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1687630986, now seen corresponding path program 1 times [2024-11-10 23:19:21,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 23:19:21,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504773558] [2024-11-10 23:19:21,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 23:19:21,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 23:19:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 23:19:21,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 23:19:21,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 23:19:21,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504773558] [2024-11-10 23:19:21,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504773558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 23:19:21,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 23:19:21,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 23:19:21,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308477880] [2024-11-10 23:19:21,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 23:19:21,117 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-10 23:19:21,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 23:19:21,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 23:19:21,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 23:19:21,160 INFO L87 Difference]: Start difference. First operand has 372 states, 343 states have (on average 1.530612244897959) internal successors, (525), 371 states have internal predecessors, (525), 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) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-10 23:19:21,173 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor1(BasicAbstractInterpolantAutomaton.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:65) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:246) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:210) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.BuchiAutomatonCegarLoop.refineFinite(BuchiAutomatonCegarLoop.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.BuchiAutomatonCegarLoop.refineFinite(BuchiAutomatonCegarLoop.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.refineFiniteInternal(AbstractBuchiCegarLoop.java:469) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.runCegarLoop(AbstractBuchiCegarLoop.java:398) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.runCegarLoops(BuchiAutomizerObserver.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:157) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:341) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-10 23:19:21,178 INFO L158 Benchmark]: Toolchain (without parser) took 2073.53ms. Allocated memory is still 163.6MB. Free memory was 132.6MB in the beginning and 60.3MB in the end (delta: 72.3MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. [2024-11-10 23:19:21,178 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 23:19:21,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.64ms. Allocated memory is still 163.6MB. Free memory was 132.6MB in the beginning and 116.0MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-10 23:19:21,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.18ms. Allocated memory is still 163.6MB. Free memory was 116.0MB in the beginning and 111.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 23:19:21,180 INFO L158 Benchmark]: Boogie Preprocessor took 70.10ms. Allocated memory is still 163.6MB. Free memory was 111.8MB in the beginning and 108.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 23:19:21,180 INFO L158 Benchmark]: IcfgBuilder took 1054.90ms. Allocated memory is still 163.6MB. Free memory was 108.7MB in the beginning and 90.7MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-10 23:19:21,181 INFO L158 Benchmark]: BuchiAutomizer took 543.30ms. Allocated memory is still 163.6MB. Free memory was 90.7MB in the beginning and 60.3MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-10 23:19:21,183 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.64ms. Allocated memory is still 163.6MB. Free memory was 132.6MB in the beginning and 116.0MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.18ms. Allocated memory is still 163.6MB. Free memory was 116.0MB in the beginning and 111.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.10ms. Allocated memory is still 163.6MB. Free memory was 111.8MB in the beginning and 108.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 1054.90ms. Allocated memory is still 163.6MB. Free memory was 108.7MB in the beginning and 90.7MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 543.30ms. Allocated memory is still 163.6MB. Free memory was 90.7MB in the beginning and 60.3MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor1(BasicAbstractInterpolantAutomaton.java:99) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-10 23:19:21,209 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 Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: null