./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/psyco/psyco_abp_1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/psyco/psyco_abp_1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya --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 39adc6d5c92d5d4be7746cac0afbcc96f3b450588f18f3eb2d03a3ab1e20a3ef --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:40:12,501 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:40:12,563 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-28 23:40:12,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:40:12,568 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:40:12,592 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:40:12,593 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:40:12,593 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:40:12,594 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:40:12,595 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:40:12,595 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:40:12,596 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:40:12,596 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:40:12,597 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-28 23:40:12,597 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-28 23:40:12,598 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-28 23:40:12,598 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-28 23:40:12,599 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-28 23:40:12,599 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-28 23:40:12,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:40:12,600 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-28 23:40:12,604 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:40:12,604 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:40:12,605 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:40:12,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:40:12,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-28 23:40:12,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-28 23:40:12,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-28 23:40:12,606 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:40:12,607 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:40:12,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:40:12,608 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-28 23:40:12,608 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:40:12,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:40:12,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:40:12,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:40:12,609 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:40:12,609 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-28 23:40:12,610 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39adc6d5c92d5d4be7746cac0afbcc96f3b450588f18f3eb2d03a3ab1e20a3ef [2023-11-28 23:40:12,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:40:12,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:40:12,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:40:12,838 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:40:12,838 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:40:12,839 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/psyco/psyco_abp_1-1.c [2023-11-28 23:40:15,650 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:40:15,849 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:40:15,850 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/sv-benchmarks/c/psyco/psyco_abp_1-1.c [2023-11-28 23:40:15,863 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya/data/31b5e9d4a/00799a9a6aee4ec98eef41e88dde705e/FLAGb4de3e7d0 [2023-11-28 23:40:15,877 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya/data/31b5e9d4a/00799a9a6aee4ec98eef41e88dde705e [2023-11-28 23:40:15,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:40:15,881 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:40:15,882 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:40:15,883 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:40:15,887 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:40:15,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:40:15" (1/1) ... [2023-11-28 23:40:15,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57580b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:15, skipping insertion in model container [2023-11-28 23:40:15,889 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:40:15" (1/1) ... [2023-11-28 23:40:15,937 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:40:16,170 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:40:16,182 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:40:16,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:40:16,253 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:40:16,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:16 WrapperNode [2023-11-28 23:40:16,253 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:40:16,254 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:40:16,255 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:40:16,255 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:40:16,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:16" (1/1) ... [2023-11-28 23:40:16,275 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:16" (1/1) ... [2023-11-28 23:40:16,312 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 418 [2023-11-28 23:40:16,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:40:16,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:40:16,314 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:40:16,314 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:40:16,325 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:16" (1/1) ... [2023-11-28 23:40:16,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:16" (1/1) ... [2023-11-28 23:40:16,330 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:16" (1/1) ... [2023-11-28 23:40:16,345 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]. [2023-11-28 23:40:16,346 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:16" (1/1) ... [2023-11-28 23:40:16,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:16" (1/1) ... [2023-11-28 23:40:16,361 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:16" (1/1) ... [2023-11-28 23:40:16,368 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:16" (1/1) ... [2023-11-28 23:40:16,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:16" (1/1) ... [2023-11-28 23:40:16,378 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:16" (1/1) ... [2023-11-28 23:40:16,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:40:16,386 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:40:16,386 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:40:16,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:40:16,387 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:16" (1/1) ... [2023-11-28 23:40:16,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-28 23:40:16,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:40:16,417 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-28 23:40:16,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-28 23:40:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:40:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:40:16,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:40:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 23:40:16,520 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:40:16,522 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:40:17,052 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:40:17,063 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:40:17,064 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-28 23:40:17,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:40:17 BoogieIcfgContainer [2023-11-28 23:40:17,065 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:40:17,066 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-28 23:40:17,067 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-28 23:40:17,070 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-28 23:40:17,071 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 23:40:17,071 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:40:15" (1/3) ... [2023-11-28 23:40:17,072 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e4808d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:40:17, skipping insertion in model container [2023-11-28 23:40:17,072 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 23:40:17,072 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:40:16" (2/3) ... [2023-11-28 23:40:17,072 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e4808d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:40:17, skipping insertion in model container [2023-11-28 23:40:17,073 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-28 23:40:17,073 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:40:17" (3/3) ... [2023-11-28 23:40:17,074 INFO L332 chiAutomizerObserver]: Analyzing ICFG psyco_abp_1-1.c [2023-11-28 23:40:17,128 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-28 23:40:17,129 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-28 23:40:17,129 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-28 23:40:17,129 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-28 23:40:17,129 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-28 23:40:17,129 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-28 23:40:17,129 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-28 23:40:17,129 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-28 23:40:17,133 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.9357798165137614) internal successors, (211), 109 states have internal predecessors, (211), 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) [2023-11-28 23:40:17,155 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2023-11-28 23:40:17,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 23:40:17,155 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 23:40:17,160 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-28 23:40:17,160 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:40:17,160 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-28 23:40:17,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.9357798165137614) internal successors, (211), 109 states have internal predecessors, (211), 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) [2023-11-28 23:40:17,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2023-11-28 23:40:17,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 23:40:17,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 23:40:17,168 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-28 23:40:17,168 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:40:17,175 INFO L748 eck$LassoCheckResult]: Stem: 20#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3);~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 29#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~P5~0#1, main_~P6~0#1, main_~P7~0#1, main_~P8~0#1, main_~P9~0#1, main_~q~0#1, main_~method_id~0#1, main_~this_expect~0#1, main_~this_buffer_empty~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_expect~0#1 := 0;main_~this_buffer_empty~0#1 := 0; 47#L26-2true [2023-11-28 23:40:17,176 INFO L750 eck$LassoCheckResult]: Loop: 47#L26-2true goto; 5#L548-2true assume !false;havoc main_#t~nondet4#1;main_~P1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~P2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_#t~nondet6#1;main_~P3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_~P4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_#t~nondet8#1;main_~P5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_#t~nondet9#1;main_~P6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_#t~nondet10#1;main_~P7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_#t~nondet11#1;main_~P8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_#t~nondet12#1;main_~P9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 76#L40true assume !(main_~this_expect~0#1 > 16); 34#L40-2true assume !(0 == main_~q~0#1); 111#L65true assume !(1 == main_~q~0#1); 6#L165true assume !(2 == main_~q~0#1); 56#L265true assume !(3 == main_~q~0#1); 39#L365true assume !(4 == main_~q~0#1); 105#L465true assume !(5 == main_~q~0#1);havoc main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~P5~0#1, main_~P6~0#1, main_~P7~0#1, main_~P8~0#1, main_~P9~0#1; 47#L26-2true [2023-11-28 23:40:17,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:40:17,181 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-28 23:40:17,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:40:17,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137262737] [2023-11-28 23:40:17,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:40:17,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:40:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:40:17,265 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:40:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:40:17,295 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:40:17,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:40:17,297 INFO L85 PathProgramCache]: Analyzing trace with hash 2073703402, now seen corresponding path program 1 times [2023-11-28 23:40:17,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:40:17,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231980678] [2023-11-28 23:40:17,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:40:17,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:40:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:40:17,305 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:40:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:40:17,312 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:40:17,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:40:17,314 INFO L85 PathProgramCache]: Analyzing trace with hash 2006272616, now seen corresponding path program 1 times [2023-11-28 23:40:17,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:40:17,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152089389] [2023-11-28 23:40:17,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:40:17,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:40:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:40:17,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:40:17,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:40:17,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152089389] [2023-11-28 23:40:17,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152089389] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:40:17,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:40:17,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:40:17,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534917526] [2023-11-28 23:40:17,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:40:17,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:40:17,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:40:17,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:40:17,498 INFO L87 Difference]: Start difference. First operand has 110 states, 109 states have (on average 1.9357798165137614) internal successors, (211), 109 states have internal predecessors, (211), 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 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-28 23:40:17,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:40:17,600 INFO L93 Difference]: Finished difference Result 113 states and 210 transitions. [2023-11-28 23:40:17,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 210 transitions. [2023-11-28 23:40:17,606 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2023-11-28 23:40:17,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 82 states and 125 transitions. [2023-11-28 23:40:17,612 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 82 [2023-11-28 23:40:17,612 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2023-11-28 23:40:17,613 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 125 transitions. [2023-11-28 23:40:17,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:40:17,614 INFO L218 hiAutomatonCegarLoop]: Abstraction has 82 states and 125 transitions. [2023-11-28 23:40:17,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 125 transitions. [2023-11-28 23:40:17,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2023-11-28 23:40:17,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 1.524390243902439) internal successors, (125), 81 states have internal predecessors, (125), 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) [2023-11-28 23:40:17,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 125 transitions. [2023-11-28 23:40:17,641 INFO L240 hiAutomatonCegarLoop]: Abstraction has 82 states and 125 transitions. [2023-11-28 23:40:17,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:40:17,646 INFO L428 stractBuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2023-11-28 23:40:17,646 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-28 23:40:17,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 125 transitions. [2023-11-28 23:40:17,648 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2023-11-28 23:40:17,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-28 23:40:17,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-28 23:40:17,649 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-28 23:40:17,649 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-28 23:40:17,649 INFO L748 eck$LassoCheckResult]: Stem: 279#$Ultimate##0 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(16, 2);call #Ultimate.allocInit(12, 3);~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 280#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~P5~0#1, main_~P6~0#1, main_~P7~0#1, main_~P8~0#1, main_~P9~0#1, main_~q~0#1, main_~method_id~0#1, main_~this_expect~0#1, main_~this_buffer_empty~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_expect~0#1 := 0;main_~this_buffer_empty~0#1 := 0; 291#L26-2 goto; 249#L548-2 [2023-11-28 23:40:17,650 INFO L750 eck$LassoCheckResult]: Loop: 249#L548-2 assume !false;havoc main_#t~nondet4#1;main_~P1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~P2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_#t~nondet6#1;main_~P3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_#t~nondet7#1;main_~P4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_#t~nondet8#1;main_~P5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_#t~nondet9#1;main_~P6~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1;havoc main_#t~nondet10#1;main_~P7~0#1 := main_#t~nondet10#1;havoc main_#t~nondet10#1;havoc main_#t~nondet11#1;main_~P8~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1;havoc main_#t~nondet12#1;main_~P9~0#1 := main_#t~nondet12#1;havoc main_#t~nondet12#1; 250#L40 assume !(main_~this_expect~0#1 > 16); 281#L40-2 assume 0 == main_~q~0#1;havoc main_#t~nondet13#1; 257#L46 assume !(0 != main_#t~nondet13#1);havoc main_#t~nondet13#1; 249#L548-2 [2023-11-28 23:40:17,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:40:17,650 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2023-11-28 23:40:17,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:40:17,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660825008] [2023-11-28 23:40:17,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:40:17,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:40:17,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:40:17,661 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:40:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:40:17,671 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:40:17,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:40:17,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1267254, now seen corresponding path program 1 times [2023-11-28 23:40:17,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:40:17,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408251695] [2023-11-28 23:40:17,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:40:17,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:40:17,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:40:17,678 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:40:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:40:17,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:40:17,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:40:17,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1805953496, now seen corresponding path program 1 times [2023-11-28 23:40:17,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:40:17,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591429355] [2023-11-28 23:40:17,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:40:17,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:40:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:40:17,694 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:40:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:40:17,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:40:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:40:17,958 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:40:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:40:18,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:40:18 BoogieIcfgContainer [2023-11-28 23:40:18,001 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-28 23:40:18,001 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 23:40:18,001 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 23:40:18,002 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 23:40:18,002 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:40:17" (3/4) ... [2023-11-28 23:40:18,003 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-28 23:40:18,040 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-28 23:40:18,040 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 23:40:18,041 INFO L158 Benchmark]: Toolchain (without parser) took 2159.61ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 89.6MB in the beginning and 83.3MB in the end (delta: 6.2MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2023-11-28 23:40:18,041 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:40:18,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 371.42ms. Allocated memory is still 127.9MB. Free memory was 89.2MB in the beginning and 70.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-28 23:40:18,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.42ms. Allocated memory is still 127.9MB. Free memory was 70.3MB in the beginning and 65.7MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 23:40:18,043 INFO L158 Benchmark]: Boogie Preprocessor took 72.04ms. Allocated memory is still 127.9MB. Free memory was 65.7MB in the beginning and 61.9MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 23:40:18,043 INFO L158 Benchmark]: RCFGBuilder took 679.32ms. Allocated memory is still 127.9MB. Free memory was 61.9MB in the beginning and 68.4MB in the end (delta: -6.5MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2023-11-28 23:40:18,044 INFO L158 Benchmark]: BuchiAutomizer took 934.52ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 68.4MB in the beginning and 85.3MB in the end (delta: -16.9MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2023-11-28 23:40:18,044 INFO L158 Benchmark]: Witness Printer took 38.84ms. Allocated memory is still 163.6MB. Free memory was 84.4MB in the beginning and 83.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:40:18,047 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 102.8MB. Free memory is still 55.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 371.42ms. Allocated memory is still 127.9MB. Free memory was 89.2MB in the beginning and 70.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.42ms. Allocated memory is still 127.9MB. Free memory was 70.3MB in the beginning and 65.7MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.04ms. Allocated memory is still 127.9MB. Free memory was 65.7MB in the beginning and 61.9MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 679.32ms. Allocated memory is still 127.9MB. Free memory was 61.9MB in the beginning and 68.4MB in the end (delta: -6.5MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 934.52ms. Allocated memory was 127.9MB in the beginning and 163.6MB in the end (delta: 35.7MB). Free memory was 68.4MB in the beginning and 85.3MB in the end (delta: -16.9MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Witness Printer took 38.84ms. Allocated memory is still 163.6MB. Free memory was 84.4MB in the beginning and 83.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 82 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 361 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 157 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 204 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 26]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L7] int m_Protocol = 1; [L8] int m_msg_2 = 2; [L9] int m_recv_ack_2 = 3; [L10] int m_msg_1_1 = 4; [L11] int m_msg_1_2 = 5; [L12] int m_recv_ack_1_1 = 6; [L13] int m_recv_ack_1_2 = 7; VAL [m_Protocol=1, m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3] [L18] int q = 0; [L19] int method_id; [L22] int this_expect = 0; [L23] int this_buffer_empty = 0; VAL [m_Protocol=1, m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, q=0, this_buffer_empty=0, this_expect=0] Loop: [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) [L45] COND TRUE q == 0 [L46] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 26]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L7] int m_Protocol = 1; [L8] int m_msg_2 = 2; [L9] int m_recv_ack_2 = 3; [L10] int m_msg_1_1 = 4; [L11] int m_msg_1_2 = 5; [L12] int m_recv_ack_1_1 = 6; [L13] int m_recv_ack_1_2 = 7; VAL [m_Protocol=1, m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3] [L18] int q = 0; [L19] int method_id; [L22] int this_expect = 0; [L23] int this_buffer_empty = 0; VAL [m_Protocol=1, m_msg_1_1=4, m_msg_1_2=5, m_msg_2=2, m_recv_ack_1_1=6, m_recv_ack_1_2=7, m_recv_ack_2=3, q=0, this_buffer_empty=0, this_expect=0] Loop: [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L40] COND FALSE !(this_expect > 16) [L45] COND TRUE q == 0 [L46] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-28 23:40:18,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23aa751-b27e-41d9-b56f-78ffcd89a395/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)