./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/mine2017-ex4.7.i --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_44e008ab-f913-4fe9-afec-91baf1e94d5c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e008ab-f913-4fe9-afec-91baf1e94d5c/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_44e008ab-f913-4fe9-afec-91baf1e94d5c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e008ab-f913-4fe9-afec-91baf1e94d5c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/mine2017-ex4.7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e008ab-f913-4fe9-afec-91baf1e94d5c/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_44e008ab-f913-4fe9-afec-91baf1e94d5c/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 51cb0ed4f3a380cdd7ae4c472320ddbca58dabad2572a56f851358e7417ed040 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:52:06,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:52:06,357 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e008ab-f913-4fe9-afec-91baf1e94d5c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-29 02:52:06,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:52:06,363 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:52:06,392 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:52:06,393 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:52:06,393 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:52:06,394 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:52:06,395 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:52:06,396 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:52:06,397 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:52:06,397 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:52:06,398 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 02:52:06,399 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 02:52:06,399 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 02:52:06,400 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 02:52:06,401 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 02:52:06,401 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 02:52:06,402 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:52:06,403 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 02:52:06,407 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:52:06,407 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:52:06,408 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:52:06,408 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:52:06,409 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 02:52:06,409 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 02:52:06,409 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 02:52:06,410 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 02:52:06,410 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:52:06,410 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:52:06,411 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 02:52:06,411 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:52:06,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:52:06,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:52:06,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:52:06,412 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:52:06,413 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 02:52:06,413 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_44e008ab-f913-4fe9-afec-91baf1e94d5c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e008ab-f913-4fe9-afec-91baf1e94d5c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51cb0ed4f3a380cdd7ae4c472320ddbca58dabad2572a56f851358e7417ed040 [2023-11-29 02:52:06,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:52:06,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:52:06,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:52:06,691 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:52:06,692 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:52:06,693 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e008ab-f913-4fe9-afec-91baf1e94d5c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/loop-lit/mine2017-ex4.7.i [2023-11-29 02:52:10,135 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:52:10,340 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:52:10,341 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e008ab-f913-4fe9-afec-91baf1e94d5c/sv-benchmarks/c/loop-lit/mine2017-ex4.7.i [2023-11-29 02:52:10,350 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e008ab-f913-4fe9-afec-91baf1e94d5c/bin/uautomizer-verify-BQ2R08f2Ya/data/e3fbe212a/dc5582c3252c40aaad5619f8fc68f377/FLAG3cc04dd21 [2023-11-29 02:52:10,368 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e008ab-f913-4fe9-afec-91baf1e94d5c/bin/uautomizer-verify-BQ2R08f2Ya/data/e3fbe212a/dc5582c3252c40aaad5619f8fc68f377 [2023-11-29 02:52:10,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:52:10,373 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:52:10,374 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:52:10,374 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:52:10,381 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:52:10,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:52:10" (1/1) ... [2023-11-29 02:52:10,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1534a172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:52:10, skipping insertion in model container [2023-11-29 02:52:10,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:52:10" (1/1) ... [2023-11-29 02:52:10,410 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:52:10,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:52:10,621 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:52:10,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:52:10,658 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:52:10,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:52:10 WrapperNode [2023-11-29 02:52:10,659 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:52:10,660 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:52:10,660 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:52:10,660 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:52:10,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:52:10" (1/1) ... [2023-11-29 02:52:10,678 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:52:10" (1/1) ... [2023-11-29 02:52:10,701 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 45 [2023-11-29 02:52:10,702 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:52:10,703 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:52:10,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:52:10,703 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:52:10,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:52:10" (1/1) ... [2023-11-29 02:52:10,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:52:10" (1/1) ... [2023-11-29 02:52:10,719 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:52:10" (1/1) ... [2023-11-29 02:52:10,734 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]. [2023-11-29 02:52:10,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:52:10" (1/1) ... [2023-11-29 02:52:10,735 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:52:10" (1/1) ... [2023-11-29 02:52:10,738 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:52:10" (1/1) ... [2023-11-29 02:52:10,743 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:52:10" (1/1) ... [2023-11-29 02:52:10,744 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:52:10" (1/1) ... [2023-11-29 02:52:10,745 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:52:10" (1/1) ... [2023-11-29 02:52:10,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:52:10,749 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:52:10,749 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:52:10,749 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:52:10,750 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:52:10" (1/1) ... [2023-11-29 02:52:10,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 02:52:10,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e008ab-f913-4fe9-afec-91baf1e94d5c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:52:10,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e008ab-f913-4fe9-afec-91baf1e94d5c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 02:52:10,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e008ab-f913-4fe9-afec-91baf1e94d5c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 02:52:10,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:52:10,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:52:10,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:52:10,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:52:10,907 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:52:10,909 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:52:11,050 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:52:11,062 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:52:11,062 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 02:52:11,065 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:52:11 BoogieIcfgContainer [2023-11-29 02:52:11,065 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:52:11,066 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 02:52:11,067 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 02:52:11,072 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 02:52:11,073 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:52:11,074 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 02:52:10" (1/3) ... [2023-11-29 02:52:11,075 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ba6f297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 02:52:11, skipping insertion in model container [2023-11-29 02:52:11,075 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:52:11,075 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:52:10" (2/3) ... [2023-11-29 02:52:11,076 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ba6f297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 02:52:11, skipping insertion in model container [2023-11-29 02:52:11,076 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 02:52:11,076 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:52:11" (3/3) ... [2023-11-29 02:52:11,078 INFO L332 chiAutomizerObserver]: Analyzing ICFG mine2017-ex4.7.i [2023-11-29 02:52:11,140 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 02:52:11,140 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 02:52:11,140 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 02:52:11,140 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 02:52:11,141 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 02:52:11,141 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 02:52:11,141 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 02:52:11,141 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 02:52:11,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 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) [2023-11-29 02:52:11,165 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-29 02:52:11,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:52:11,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:52:11,172 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 02:52:11,172 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:11,173 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 02:52:11,173 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 20 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 19 states have internal predecessors, (27), 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) [2023-11-29 02:52:11,175 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-11-29 02:52:11,175 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 02:52:11,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 02:52:11,176 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 02:52:11,176 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:52:11,184 INFO L748 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(22, 2); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet2#1, main_#t~post3#1, main_#t~nondet1#1, main_~x~0#1;main_~x~0#1 := 0; 15#L20-1true [2023-11-29 02:52:11,185 INFO L750 eck$LassoCheckResult]: Loop: 15#L20-1true havoc main_#t~nondet1#1; 16#L17-1true assume !!(0 == (if main_#t~nondet1#1 % 256 % 4294967296 <= 2147483647 then main_#t~nondet1#1 % 256 % 4294967296 else main_#t~nondet1#1 % 256 % 4294967296 - 4294967296));havoc main_#t~nondet1#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 <= main_~x~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 12#L13true assume !(0 == __VERIFIER_assert_~cond#1); 5#L13-3true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~x~0#1 <= 40 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 17#L13-4true assume !(0 == __VERIFIER_assert_~cond#1); 9#L13-7true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~nondet2#1; 18#L20true assume !(0 == (if main_#t~nondet2#1 % 256 % 4294967296 <= 2147483647 then main_#t~nondet2#1 % 256 % 4294967296 else main_#t~nondet2#1 % 256 % 4294967296 - 4294967296));havoc main_#t~nondet2#1; 15#L20-1true [2023-11-29 02:52:11,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:11,192 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-29 02:52:11,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:11,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766431803] [2023-11-29 02:52:11,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:11,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:52:11,292 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:52:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:52:11,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:52:11,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:11,321 INFO L85 PathProgramCache]: Analyzing trace with hash -266161203, now seen corresponding path program 1 times [2023-11-29 02:52:11,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:11,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856921818] [2023-11-29 02:52:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:11,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:52:11,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:52:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:52:11,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:52:11,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:52:11,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1280135627, now seen corresponding path program 1 times [2023-11-29 02:52:11,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:52:11,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353395064] [2023-11-29 02:52:11,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:52:11,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:52:11,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:52:11,395 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:52:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:52:11,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 02:52:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:52:11,727 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 02:52:11,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 02:52:11,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 02:52:11 BoogieIcfgContainer [2023-11-29 02:52:11,755 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 02:52:11,756 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:52:11,756 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:52:11,756 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:52:11,757 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:52:11" (3/4) ... [2023-11-29 02:52:11,759 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-29 02:52:11,798 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e008ab-f913-4fe9-afec-91baf1e94d5c/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 02:52:11,798 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:52:11,800 INFO L158 Benchmark]: Toolchain (without parser) took 1426.13ms. Allocated memory was 157.3MB in the beginning and 207.6MB in the end (delta: 50.3MB). Free memory was 119.4MB in the beginning and 166.9MB in the end (delta: -47.5MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2023-11-29 02:52:11,800 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 94.4MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:52:11,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.98ms. Allocated memory is still 157.3MB. Free memory was 118.9MB in the beginning and 108.9MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 02:52:11,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.96ms. Allocated memory is still 157.3MB. Free memory was 108.9MB in the beginning and 107.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:52:11,803 INFO L158 Benchmark]: Boogie Preprocessor took 45.05ms. Allocated memory is still 157.3MB. Free memory was 107.5MB in the beginning and 105.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:52:11,803 INFO L158 Benchmark]: RCFGBuilder took 316.46ms. Allocated memory is still 157.3MB. Free memory was 105.8MB in the beginning and 96.3MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 02:52:11,804 INFO L158 Benchmark]: BuchiAutomizer took 689.06ms. Allocated memory was 157.3MB in the beginning and 207.6MB in the end (delta: 50.3MB). Free memory was 96.3MB in the beginning and 169.0MB in the end (delta: -72.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:52:11,805 INFO L158 Benchmark]: Witness Printer took 42.15ms. Allocated memory is still 207.6MB. Free memory was 168.0MB in the beginning and 166.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:52:11,809 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 94.4MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.98ms. Allocated memory is still 157.3MB. Free memory was 118.9MB in the beginning and 108.9MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.96ms. Allocated memory is still 157.3MB. Free memory was 108.9MB in the beginning and 107.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.05ms. Allocated memory is still 157.3MB. Free memory was 107.5MB in the beginning and 105.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 316.46ms. Allocated memory is still 157.3MB. Free memory was 105.8MB in the beginning and 96.3MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 689.06ms. Allocated memory was 157.3MB in the beginning and 207.6MB in the end (delta: 50.3MB). Free memory was 96.3MB in the beginning and 169.0MB in the end (delta: -72.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 42.15ms. Allocated memory is still 207.6MB. Free memory was 168.0MB in the beginning and 166.9MB 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. 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: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 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: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L16] int x = 0; VAL [x=0] Loop: [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= x) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(0 <= x) [L19] CALL __VERIFIER_assert(x <= 40) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(x <= 40) [L20] COND FALSE !(__VERIFIER_nondet_bool() == 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L16] int x = 0; VAL [x=0] Loop: [L17] COND TRUE __VERIFIER_nondet_bool() == 0 [L18] CALL __VERIFIER_assert(0 <= x) [L13] COND FALSE !(!(cond)) [L18] RET __VERIFIER_assert(0 <= x) [L19] CALL __VERIFIER_assert(x <= 40) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(x <= 40) [L20] COND FALSE !(__VERIFIER_nondet_bool() == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-29 02:52:11,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44e008ab-f913-4fe9-afec-91baf1e94d5c/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)