./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Stockholm-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b 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_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Stockholm-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 0690e5781abea147059c8c3687dc0be9b462edcdf26c7ee50864c7e6884a231b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:21:17,241 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:21:17,344 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-06 22:21:17,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:21:17,352 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:21:17,392 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:21:17,392 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:21:17,393 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:21:17,395 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:21:17,400 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:21:17,400 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:21:17,401 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:21:17,401 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:21:17,403 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:21:17,403 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:21:17,404 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:21:17,404 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:21:17,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:21:17,406 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:21:17,406 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:21:17,407 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:21:17,407 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:21:17,408 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:21:17,408 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:21:17,409 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:21:17,409 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:21:17,410 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:21:17,410 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:21:17,410 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:21:17,411 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:21:17,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:21:17,413 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:21:17,413 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:21:17,414 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_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0690e5781abea147059c8c3687dc0be9b462edcdf26c7ee50864c7e6884a231b [2023-11-06 22:21:17,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:21:17,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:21:17,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:21:17,766 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:21:17,766 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:21:17,767 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-crafted/Stockholm-1.c [2023-11-06 22:21:20,848 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:21:21,065 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:21:21,066 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/sv-benchmarks/c/termination-crafted/Stockholm-1.c [2023-11-06 22:21:21,080 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/data/5653a8ed1/2675daa0f0064e689469ef724f15078c/FLAGa6cf85f4d [2023-11-06 22:21:21,098 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/data/5653a8ed1/2675daa0f0064e689469ef724f15078c [2023-11-06 22:21:21,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:21:21,110 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:21:21,116 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:21:21,116 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:21:21,122 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:21:21,123 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:21:21" (1/1) ... [2023-11-06 22:21:21,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53423003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:21, skipping insertion in model container [2023-11-06 22:21:21,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:21:21" (1/1) ... [2023-11-06 22:21:21,148 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:21:21,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:21:21,348 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:21:21,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:21:21,379 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:21:21,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:21 WrapperNode [2023-11-06 22:21:21,380 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:21:21,381 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:21:21,382 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:21:21,382 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:21:21,390 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:21" (1/1) ... [2023-11-06 22:21:21,395 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:21" (1/1) ... [2023-11-06 22:21:21,417 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2023-11-06 22:21:21,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:21:21,418 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:21:21,418 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:21:21,418 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:21:21,429 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:21" (1/1) ... [2023-11-06 22:21:21,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:21" (1/1) ... [2023-11-06 22:21:21,431 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:21" (1/1) ... [2023-11-06 22:21:21,432 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:21" (1/1) ... [2023-11-06 22:21:21,435 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:21" (1/1) ... [2023-11-06 22:21:21,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:21" (1/1) ... [2023-11-06 22:21:21,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:21" (1/1) ... [2023-11-06 22:21:21,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:21" (1/1) ... [2023-11-06 22:21:21,447 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:21:21,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:21:21,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:21:21,449 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:21:21,450 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:21" (1/1) ... [2023-11-06 22:21:21,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:21,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:21,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:21,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:21:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:21:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:21:21,619 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:21:21,622 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:21:21,708 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:21:21,714 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:21:21,714 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:21:21,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:21:21 BoogieIcfgContainer [2023-11-06 22:21:21,717 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:21:21,718 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:21:21,718 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:21:21,722 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:21:21,723 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:21:21,723 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:21:21" (1/3) ... [2023-11-06 22:21:21,724 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bc1abe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:21:21, skipping insertion in model container [2023-11-06 22:21:21,724 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:21:21,724 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:21:21" (2/3) ... [2023-11-06 22:21:21,725 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bc1abe0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:21:21, skipping insertion in model container [2023-11-06 22:21:21,725 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:21:21,725 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:21:21" (3/3) ... [2023-11-06 22:21:21,726 INFO L332 chiAutomizerObserver]: Analyzing ICFG Stockholm-1.c [2023-11-06 22:21:21,785 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:21:21,785 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:21:21,785 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:21:21,785 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:21:21,785 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:21:21,786 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:21:21,786 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:21:21,786 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:21:21,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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) [2023-11-06 22:21:21,808 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:21:21,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:21:21,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:21:21,812 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:21:21,813 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 22:21:21,813 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:21:21,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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) [2023-11-06 22:21:21,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 22:21:21,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:21:21,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:21:21,815 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:21:21,815 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 22:21:21,824 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~a~0#1, main_~b~0#1;havoc main_~x~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~b~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 3#L22true assume !!(-268435455 <= main_~x~0#1 && main_~x~0#1 <= 268435455); 8#L23true assume !!(-268435455 <= main_~a~0#1 && main_~a~0#1 <= 268435455); 11#L24true assume !!(-268435455 <= main_~b~0#1 && main_~b~0#1 <= 268435455); 6#L25true assume main_~a~0#1 == main_~b~0#1; 5#L26-2true [2023-11-06 22:21:21,824 INFO L750 eck$LassoCheckResult]: Loop: 5#L26-2true assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 + main_~a~0#1 - main_~b~0#1 - 1; 5#L26-2true [2023-11-06 22:21:21,830 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:21,830 INFO L85 PathProgramCache]: Analyzing trace with hash 889571339, now seen corresponding path program 1 times [2023-11-06 22:21:21,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:21,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474894898] [2023-11-06 22:21:21,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:21,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:21,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:21,929 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:21:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:21,952 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:21:21,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:21,955 INFO L85 PathProgramCache]: Analyzing trace with hash 60, now seen corresponding path program 1 times [2023-11-06 22:21:21,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:21,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706006783] [2023-11-06 22:21:21,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:21,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:21,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:21:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:21,970 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:21:21,971 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:21,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1806907762, now seen corresponding path program 1 times [2023-11-06 22:21:21,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:21:21,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737688338] [2023-11-06 22:21:21,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:21:21,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:21:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:21,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:21:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:21:21,992 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:21:22,151 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:21:22,152 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:21:22,152 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:21:22,153 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:21:22,153 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 22:21:22,153 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:22,153 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:21:22,153 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:21:22,154 INFO L133 ssoRankerPreferences]: Filename of dumped script: Stockholm-1.c_Iteration1_Lasso [2023-11-06 22:21:22,154 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:21:22,154 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:21:22,189 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:22,202 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:22,206 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:22,209 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:22,213 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:22,218 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:22,239 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:22,352 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:21:22,353 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 22:21:22,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:22,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:22,359 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:22,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:21:22,366 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:21:22,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 22:21:22,407 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:21:22,408 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:21:22,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:22,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:22,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:22,418 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:22,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 22:21:22,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:21:22,426 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:21:22,448 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:21:22,448 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:21:22,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:22,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:22,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:22,465 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:22,479 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:21:22,479 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:21:22,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 22:21:22,505 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:21:22,505 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:21:22,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:22,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:22,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:22,516 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:22,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:21:22,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:21:22,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 22:21:22,548 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:21:22,548 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:21:22,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:22,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:22,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:22,560 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:22,574 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:21:22,575 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:21:22,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 22:21:22,594 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 22:21:22,594 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-06 22:21:22,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-06 22:21:22,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:22,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:22,600 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:22,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 22:21:22,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 22:21:22,605 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:21:22,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:22,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:22,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:22,667 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:22,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 22:21:22,671 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 22:21:22,671 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 22:21:22,713 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-06 22:21:22,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-06 22:21:22,720 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 22:21:22,720 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 22:21:22,720 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 22:21:22,721 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 22:21:22,721 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-06 22:21:22,721 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:22,721 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 22:21:22,721 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 22:21:22,721 INFO L133 ssoRankerPreferences]: Filename of dumped script: Stockholm-1.c_Iteration1_Lasso [2023-11-06 22:21:22,721 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 22:21:22,722 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 22:21:22,725 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:22,730 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:22,733 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:22,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:22,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:22,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:22,763 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 22:21:22,839 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 22:21:22,844 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-06 22:21:22,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:22,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:22,847 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:22,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-06 22:21:22,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:21:22,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:22,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:22,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:22,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:22,878 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:21:22,879 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:21:22,901 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:22,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:22,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:22,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:22,912 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:22,922 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:21:22,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:22,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:21:22,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:22,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:22,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:22,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:21:22,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:21:22,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-06 22:21:22,949 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:22,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:22,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:22,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:22,958 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:22,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-06 22:21:22,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:21:22,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:22,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:21:22,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:22,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:22,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:22,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:21:22,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:21:22,997 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:23,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:23,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:23,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:23,003 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:23,014 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:21:23,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:23,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-06 22:21:23,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:23,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:23,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:23,028 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-06 22:21:23,028 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-06 22:21:23,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-06 22:21:23,039 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-06 22:21:23,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:23,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:23,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:23,044 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:23,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-06 22:21:23,053 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-11-06 22:21:23,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-06 22:21:23,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-06 22:21:23,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-06 22:21:23,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-06 22:21:23,072 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-06 22:21:23,072 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-06 22:21:23,100 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-06 22:21:23,117 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-11-06 22:21:23,118 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-11-06 22:21:23,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:21:23,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:21:23,173 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:21:23,182 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-06 22:21:23,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-06 22:21:23,206 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-11-06 22:21:23,206 INFO L513 LassoAnalysis]: Proved termination. [2023-11-06 22:21:23,207 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~b~0#1 - 1*ULTIMATE.start_main_~a~0#1 >= 0] [2023-11-06 22:21:23,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:23,228 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-11-06 22:21:23,282 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:21:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:23,307 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:21:23,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:21:23,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:21:23,333 WARN L260 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:21:23,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:21:23,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:21:23,383 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-06 22:21:23,385 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-06 22:21:23,453 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) Result 22 states and 28 transitions. Complement of second has 6 states. [2023-11-06 22:21:23,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-11-06 22:21:23,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2023-11-06 22:21:23,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2023-11-06 22:21:23,462 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 6 letters. Loop has 1 letters. [2023-11-06 22:21:23,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:21:23,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 1 letters. [2023-11-06 22:21:23,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:21:23,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 6 letters. Loop has 2 letters. [2023-11-06 22:21:23,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-06 22:21:23,465 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 28 transitions. [2023-11-06 22:21:23,467 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:21:23,470 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2023-11-06 22:21:23,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-06 22:21:23,471 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-06 22:21:23,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-06 22:21:23,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:21:23,472 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:21:23,472 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:21:23,472 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:21:23,473 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:21:23,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:21:23,473 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-06 22:21:23,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-06 22:21:23,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:21:23 BoogieIcfgContainer [2023-11-06 22:21:23,480 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:21:23,481 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:21:23,481 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:21:23,481 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:21:23,482 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:21:21" (3/4) ... [2023-11-06 22:21:23,484 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:21:23,485 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:21:23,486 INFO L158 Benchmark]: Toolchain (without parser) took 2375.33ms. Allocated memory was 155.2MB in the beginning and 188.7MB in the end (delta: 33.6MB). Free memory was 108.9MB in the beginning and 117.1MB in the end (delta: -8.3MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2023-11-06 22:21:23,486 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 104.9MB. Free memory was 53.8MB in the beginning and 53.6MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:21:23,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.29ms. Allocated memory is still 155.2MB. Free memory was 108.5MB in the beginning and 99.3MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:21:23,488 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.07ms. Allocated memory is still 155.2MB. Free memory was 99.3MB in the beginning and 98.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:21:23,488 INFO L158 Benchmark]: Boogie Preprocessor took 29.03ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 96.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:21:23,489 INFO L158 Benchmark]: RCFGBuilder took 268.86ms. Allocated memory is still 155.2MB. Free memory was 96.8MB in the beginning and 87.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:21:23,490 INFO L158 Benchmark]: BuchiAutomizer took 1762.22ms. Allocated memory was 155.2MB in the beginning and 188.7MB in the end (delta: 33.6MB). Free memory was 87.9MB in the beginning and 117.4MB in the end (delta: -29.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-11-06 22:21:23,490 INFO L158 Benchmark]: Witness Printer took 4.04ms. Allocated memory is still 188.7MB. Free memory was 117.4MB in the beginning and 117.1MB in the end (delta: 243.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:21:23,494 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 104.9MB. Free memory was 53.8MB in the beginning and 53.6MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.29ms. Allocated memory is still 155.2MB. Free memory was 108.5MB in the beginning and 99.3MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.07ms. Allocated memory is still 155.2MB. Free memory was 99.3MB in the beginning and 98.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.03ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 96.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 268.86ms. Allocated memory is still 155.2MB. Free memory was 96.8MB in the beginning and 87.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1762.22ms. Allocated memory was 155.2MB in the beginning and 188.7MB in the end (delta: 33.6MB). Free memory was 87.9MB in the beginning and 117.4MB in the end (delta: -29.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Witness Printer took 4.04ms. Allocated memory is still 188.7MB. Free memory was 117.4MB in the beginning and 117.1MB in the end (delta: 243.8kB). There was no memory consumed. 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 (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function ((2 * x) + 1) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 15 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital32 mio100 ax137 hnf100 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq140 hnf95 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 56ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-06 22:21:23,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:21:23,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a5b0b03-4454-43a2-98c2-60b140369d36/bin/uautomizer-verify-WvqO1wxjHP/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 Result: TRUE