./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1 --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 64bit --witnessprinter.graph.data.programhash 172ac4fa0310d14c59d9149bc1b8ec1548860e0b827250d611bfd9d710019753 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 09:02:35,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 09:02:35,175 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-12-02 09:02:35,180 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 09:02:35,180 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 09:02:35,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 09:02:35,205 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 09:02:35,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 09:02:35,205 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 09:02:35,205 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 09:02:35,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 09:02:35,206 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 09:02:35,206 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 09:02:35,206 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 09:02:35,206 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 09:02:35,206 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 09:02:35,206 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 09:02:35,206 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 09:02:35,206 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 09:02:35,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 09:02:35,207 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 09:02:35,207 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 09:02:35,207 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 09:02:35,207 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 09:02:35,207 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 09:02:35,207 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 09:02:35,207 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 09:02:35,207 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 09:02:35,207 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 09:02:35,207 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 09:02:35,207 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 09:02:35,207 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 09:02:35,208 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 09:02:35,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 09:02:35,208 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 09:02:35,208 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 09:02:35,208 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 172ac4fa0310d14c59d9149bc1b8ec1548860e0b827250d611bfd9d710019753 [2024-12-02 09:02:35,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 09:02:35,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 09:02:35,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 09:02:35,452 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 09:02:35,452 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 09:02:35,453 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c [2024-12-02 09:02:38,086 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/data/d988e859f/f55dc64db8154005afa572ebd51e703a/FLAGf80397e56 [2024-12-02 09:02:38,269 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 09:02:38,269 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a.c [2024-12-02 09:02:38,274 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/data/d988e859f/f55dc64db8154005afa572ebd51e703a/FLAGf80397e56 [2024-12-02 09:02:38,286 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/data/d988e859f/f55dc64db8154005afa572ebd51e703a [2024-12-02 09:02:38,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 09:02:38,289 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 09:02:38,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 09:02:38,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 09:02:38,293 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 09:02:38,294 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:02:38" (1/1) ... [2024-12-02 09:02:38,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@305bf2ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:38, skipping insertion in model container [2024-12-02 09:02:38,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:02:38" (1/1) ... [2024-12-02 09:02:38,304 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 09:02:38,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:02:38,409 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 09:02:38,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 09:02:38,427 INFO L204 MainTranslator]: Completed translation [2024-12-02 09:02:38,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:38 WrapperNode [2024-12-02 09:02:38,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 09:02:38,428 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 09:02:38,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 09:02:38,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 09:02:38,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:38" (1/1) ... [2024-12-02 09:02:38,436 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:38" (1/1) ... [2024-12-02 09:02:38,446 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2024-12-02 09:02:38,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 09:02:38,447 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 09:02:38,447 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 09:02:38,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 09:02:38,452 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:38" (1/1) ... [2024-12-02 09:02:38,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:38" (1/1) ... [2024-12-02 09:02:38,453 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:38" (1/1) ... [2024-12-02 09:02:38,456 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 09:02:38,457 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:38" (1/1) ... [2024-12-02 09:02:38,457 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:38" (1/1) ... [2024-12-02 09:02:38,458 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:38" (1/1) ... [2024-12-02 09:02:38,458 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:38" (1/1) ... [2024-12-02 09:02:38,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:38" (1/1) ... [2024-12-02 09:02:38,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:38" (1/1) ... [2024-12-02 09:02:38,464 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:38" (1/1) ... [2024-12-02 09:02:38,465 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 09:02:38,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 09:02:38,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 09:02:38,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 09:02:38,466 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:38" (1/1) ... [2024-12-02 09:02:38,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:38,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:38,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:38,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 09:02:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 09:02:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 09:02:38,560 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 09:02:38,561 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 09:02:38,609 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-12-02 09:02:38,609 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 09:02:38,618 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 09:02:38,618 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 09:02:38,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:02:38 BoogieIcfgContainer [2024-12-02 09:02:38,619 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 09:02:38,620 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 09:02:38,620 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 09:02:38,625 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 09:02:38,626 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 09:02:38,626 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 09:02:38" (1/3) ... [2024-12-02 09:02:38,627 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@406651a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 09:02:38, skipping insertion in model container [2024-12-02 09:02:38,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 09:02:38,627 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:02:38" (2/3) ... [2024-12-02 09:02:38,628 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@406651a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 09:02:38, skipping insertion in model container [2024-12-02 09:02:38,628 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 09:02:38,628 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:02:38" (3/3) ... [2024-12-02 09:02:38,629 INFO L363 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Fig9a.c [2024-12-02 09:02:38,678 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 09:02:38,678 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 09:02:38,678 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 09:02:38,679 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 09:02:38,679 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 09:02:38,679 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 09:02:38,679 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 09:02:38,679 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 09:02:38,684 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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) [2024-12-02 09:02:38,699 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-12-02 09:02:38,700 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 09:02:38,700 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 09:02:38,704 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-12-02 09:02:38,704 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 09:02:38,704 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 09:02:38,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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) [2024-12-02 09:02:38,706 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-12-02 09:02:38,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 09:02:38,706 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 09:02:38,706 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-12-02 09:02:38,706 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 09:02:38,713 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~k~0#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~j~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;" "assume main_~k~0#1 >= 1;main_~i~0#1 := 0;" [2024-12-02 09:02:38,713 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume !(main_~j~0#1 <= main_~i~0#1);" "main_~i~0#1 := 1 + main_~i~0#1;" [2024-12-02 09:02:38,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:38,718 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2024-12-02 09:02:38,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 09:02:38,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336314758] [2024-12-02 09:02:38,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:38,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:38,785 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 09:02:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:38,799 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 09:02:38,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:38,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1266379, now seen corresponding path program 1 times [2024-12-02 09:02:38,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 09:02:38,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099385538] [2024-12-02 09:02:38,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:38,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:38,811 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 09:02:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:38,817 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 09:02:38,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:38,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029100, now seen corresponding path program 1 times [2024-12-02 09:02:38,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 09:02:38,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986221440] [2024-12-02 09:02:38,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:38,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:38,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:38,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 09:02:38,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986221440] [2024-12-02 09:02:38,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986221440] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 09:02:38,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514618550] [2024-12-02 09:02:38,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:38,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 09:02:38,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:38,901 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 09:02:38,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 09:02:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:38,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 09:02:38,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:38,979 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 09:02:38,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514618550] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 09:02:38,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 09:02:38,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2024-12-02 09:02:38,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400339876] [2024-12-02 09:02:38,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 09:02:39,042 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 09:02:39,043 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 09:02:39,043 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 09:02:39,043 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 09:02:39,043 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 09:02:39,043 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:39,043 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 09:02:39,043 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 09:02:39,043 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration1_Loop [2024-12-02 09:02:39,043 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 09:02:39,044 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 09:02:39,055 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:39,062 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:39,070 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:39,081 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:39,135 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 09:02:39,136 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 09:02:39,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:39,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:39,140 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:39,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-12-02 09:02:39,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 09:02:39,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 09:02:39,170 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 09:02:39,170 INFO L401 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: [] [2024-12-02 09:02:39,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-12-02 09:02:39,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:39,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:39,179 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:39,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-12-02 09:02:39,181 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 09:02:39,181 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 09:02:39,203 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 09:02:39,203 INFO L401 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: [] [2024-12-02 09:02:39,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-12-02 09:02:39,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:39,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:39,214 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:39,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-12-02 09:02:39,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 09:02:39,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 09:02:39,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-12-02 09:02:39,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:39,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:39,238 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:39,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-12-02 09:02:39,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 09:02:39,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 09:02:39,271 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 09:02:39,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-12-02 09:02:39,274 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 09:02:39,274 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 09:02:39,274 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 09:02:39,274 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 09:02:39,274 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 09:02:39,274 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:39,274 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 09:02:39,274 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 09:02:39,274 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration1_Loop [2024-12-02 09:02:39,274 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 09:02:39,274 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 09:02:39,276 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:39,280 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:39,283 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:39,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:39,334 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 09:02:39,337 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 09:02:39,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:39,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:39,339 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:39,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-12-02 09:02:39,342 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 [2024-12-02 09:02:39,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 09:02:39,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 09:02:39,354 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 09:02:39,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 09:02:39,362 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 09:02:39,362 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 09:02:39,368 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 09:02:39,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-12-02 09:02:39,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:39,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:39,379 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:39,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-12-02 09:02:39,381 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 [2024-12-02 09:02:39,395 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 09:02:39,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 09:02:39,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 09:02:39,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 09:02:39,398 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 09:02:39,398 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 09:02:39,403 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 09:02:39,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-12-02 09:02:39,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:39,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:39,413 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:39,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-12-02 09:02:39,415 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 [2024-12-02 09:02:39,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 09:02:39,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 09:02:39,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 09:02:39,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 09:02:39,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 09:02:39,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 09:02:39,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 09:02:39,435 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 09:02:39,438 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 09:02:39,441 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 09:02:39,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:39,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:39,447 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:39,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-12-02 09:02:39,448 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 09:02:39,448 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 09:02:39,449 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 09:02:39,449 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-12-02 09:02:39,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-12-02 09:02:39,460 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 09:02:39,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-12-02 09:02:39,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:39,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 09:02:39,501 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:39,510 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 09:02:39,510 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:39,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:39,569 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-12-02 09:02:39,571 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2024-12-02 09:02:39,655 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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 40 states and 55 transitions. Complement of second has 10 states. [2024-12-02 09:02:39,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-12-02 09:02:39,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2024-12-02 09:02:39,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 34 transitions. [2024-12-02 09:02:39,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 3 letters. Loop has 4 letters. [2024-12-02 09:02:39,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 09:02:39,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 7 letters. Loop has 4 letters. [2024-12-02 09:02:39,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 09:02:39,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 34 transitions. Stem has 3 letters. Loop has 8 letters. [2024-12-02 09:02:39,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 09:02:39,672 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 55 transitions. [2024-12-02 09:02:39,674 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-12-02 09:02:39,677 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 21 states and 26 transitions. [2024-12-02 09:02:39,678 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-12-02 09:02:39,679 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-12-02 09:02:39,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2024-12-02 09:02:39,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 09:02:39,679 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 26 transitions. [2024-12-02 09:02:39,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2024-12-02 09:02:39,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2024-12-02 09:02:39,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 17 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:39,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2024-12-02 09:02:39,702 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 23 transitions. [2024-12-02 09:02:39,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 09:02:39,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 09:02:39,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 09:02:39,705 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:39,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 09:02:39,739 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2024-12-02 09:02:39,739 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 21 transitions. [2024-12-02 09:02:39,740 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-12-02 09:02:39,740 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 11 states and 12 transitions. [2024-12-02 09:02:39,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-12-02 09:02:39,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-12-02 09:02:39,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 12 transitions. [2024-12-02 09:02:39,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 09:02:39,741 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 12 transitions. [2024-12-02 09:02:39,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 12 transitions. [2024-12-02 09:02:39,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2024-12-02 09:02:39,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:39,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2024-12-02 09:02:39,742 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-12-02 09:02:39,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 09:02:39,743 INFO L425 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2024-12-02 09:02:39,743 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 09:02:39,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2024-12-02 09:02:39,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-12-02 09:02:39,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 09:02:39,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 09:02:39,744 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-12-02 09:02:39,744 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-12-02 09:02:39,744 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~k~0#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~j~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;" "assume main_~k~0#1 >= 1;main_~i~0#1 := 0;" [2024-12-02 09:02:39,745 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume main_~j~0#1 <= main_~i~0#1;" "main_~j~0#1 := main_~j~0#1 + main_~k~0#1;" "assume !(main_~j~0#1 <= main_~i~0#1);" "main_~i~0#1 := 1 + main_~i~0#1;" [2024-12-02 09:02:39,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:39,745 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2024-12-02 09:02:39,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 09:02:39,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165606468] [2024-12-02 09:02:39,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:39,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:39,750 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 09:02:39,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:39,752 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 09:02:39,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:39,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1216927535, now seen corresponding path program 1 times [2024-12-02 09:02:39,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 09:02:39,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132384555] [2024-12-02 09:02:39,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:39,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:39,759 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 09:02:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:39,764 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 09:02:39,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:39,765 INFO L85 PathProgramCache]: Analyzing trace with hash -533885168, now seen corresponding path program 1 times [2024-12-02 09:02:39,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 09:02:39,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129216164] [2024-12-02 09:02:39,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:39,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:39,771 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 09:02:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:39,777 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 09:02:39,812 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 09:02:39,813 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 09:02:39,813 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 09:02:39,813 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 09:02:39,813 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 09:02:39,813 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:39,813 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 09:02:39,813 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 09:02:39,813 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration2_Loop [2024-12-02 09:02:39,813 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 09:02:39,813 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 09:02:39,814 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:39,817 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:39,821 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:39,823 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:39,875 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 09:02:39,875 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 09:02:39,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:39,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:39,877 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:39,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-12-02 09:02:39,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 09:02:39,879 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 09:02:39,898 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 09:02:39,898 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 09:02:39,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-12-02 09:02:39,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:39,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:39,907 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:39,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-12-02 09:02:39,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 09:02:39,910 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 09:02:39,932 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 09:02:39,932 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 09:02:39,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-12-02 09:02:39,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:39,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:39,939 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:39,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-12-02 09:02:39,941 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 09:02:39,941 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 09:02:39,953 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 09:02:39,953 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0#1=0} Honda state: {ULTIMATE.start_main_~j~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 09:02:39,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-12-02 09:02:39,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:39,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:39,960 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:39,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-12-02 09:02:39,962 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 09:02:39,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 09:02:39,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-12-02 09:02:39,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:39,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:39,982 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:39,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-12-02 09:02:39,985 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 09:02:39,985 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 09:02:40,043 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 09:02:40,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-12-02 09:02:40,046 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 09:02:40,046 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 09:02:40,046 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 09:02:40,046 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 09:02:40,046 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 09:02:40,046 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:40,046 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 09:02:40,046 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 09:02:40,046 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration2_Loop [2024-12-02 09:02:40,046 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 09:02:40,046 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 09:02:40,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,051 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,054 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,064 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,106 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 09:02:40,106 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 09:02:40,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:40,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:40,108 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:40,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-12-02 09:02:40,110 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 [2024-12-02 09:02:40,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 09:02:40,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 09:02:40,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 09:02:40,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 09:02:40,124 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 09:02:40,124 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 09:02:40,129 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 09:02:40,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-12-02 09:02:40,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:40,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:40,138 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:40,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-12-02 09:02:40,141 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 [2024-12-02 09:02:40,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 09:02:40,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 09:02:40,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 09:02:40,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 09:02:40,154 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 09:02:40,154 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 09:02:40,159 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 09:02:40,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-12-02 09:02:40,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:40,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:40,167 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:40,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-12-02 09:02:40,170 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 [2024-12-02 09:02:40,181 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 09:02:40,181 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 09:02:40,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 09:02:40,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 09:02:40,182 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 09:02:40,183 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 09:02:40,183 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 09:02:40,186 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 09:02:40,190 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-12-02 09:02:40,190 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 09:02:40,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:40,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:40,192 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:40,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-12-02 09:02:40,196 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 09:02:40,196 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 09:02:40,196 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 09:02:40,196 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~n~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1*ULTIMATE.start_main_~n~0#1 Supporting invariants [] [2024-12-02 09:02:40,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-12-02 09:02:40,204 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 09:02:40,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:40,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 09:02:40,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:40,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:40,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 09:02:40,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:40,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 09:02:40,277 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-12-02 09:02:40,278 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:40,304 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 15 states and 18 transitions. Complement of second has 4 states. [2024-12-02 09:02:40,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 09:02:40,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:40,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-12-02 09:02:40,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 6 letters. [2024-12-02 09:02:40,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 09:02:40,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 6 letters. [2024-12-02 09:02:40,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 09:02:40,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 12 letters. [2024-12-02 09:02:40,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 09:02:40,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2024-12-02 09:02:40,307 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 09:02:40,308 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 14 states and 17 transitions. [2024-12-02 09:02:40,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-12-02 09:02:40,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-12-02 09:02:40,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2024-12-02 09:02:40,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 09:02:40,308 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 17 transitions. [2024-12-02 09:02:40,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2024-12-02 09:02:40,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2024-12-02 09:02:40,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 12 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) [2024-12-02 09:02:40,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2024-12-02 09:02:40,309 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-12-02 09:02:40,309 INFO L425 stractBuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2024-12-02 09:02:40,309 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 09:02:40,309 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2024-12-02 09:02:40,310 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 09:02:40,310 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 09:02:40,310 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 09:02:40,310 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-12-02 09:02:40,310 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 09:02:40,310 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~k~0#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~j~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;" "assume main_~k~0#1 >= 1;main_~i~0#1 := 0;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" [2024-12-02 09:02:40,310 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~j~0#1 <= main_~i~0#1;" "main_~j~0#1 := main_~j~0#1 + main_~k~0#1;" [2024-12-02 09:02:40,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:40,311 INFO L85 PathProgramCache]: Analyzing trace with hash 28693894, now seen corresponding path program 1 times [2024-12-02 09:02:40,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 09:02:40,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223978549] [2024-12-02 09:02:40,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:40,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:40,315 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 09:02:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:40,319 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 09:02:40,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:40,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1637, now seen corresponding path program 1 times [2024-12-02 09:02:40,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 09:02:40,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754062871] [2024-12-02 09:02:40,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:40,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:40,324 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 09:02:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:40,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 09:02:40,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:40,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1805029034, now seen corresponding path program 1 times [2024-12-02 09:02:40,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 09:02:40,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068789717] [2024-12-02 09:02:40,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:40,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:40,334 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 09:02:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:40,338 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 09:02:40,385 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 09:02:40,385 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 09:02:40,385 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 09:02:40,385 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 09:02:40,386 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 09:02:40,386 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:40,386 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 09:02:40,386 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 09:02:40,386 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration3_Lasso [2024-12-02 09:02:40,386 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 09:02:40,386 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 09:02:40,387 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,400 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,405 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,407 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,409 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,412 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,414 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,416 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,479 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 09:02:40,479 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 09:02:40,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:40,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:40,481 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:40,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-12-02 09:02:40,483 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 09:02:40,484 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 09:02:40,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-12-02 09:02:40,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:40,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:40,504 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:40,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-12-02 09:02:40,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 09:02:40,507 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 09:02:40,652 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 09:02:40,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-12-02 09:02:40,657 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 09:02:40,657 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 09:02:40,657 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 09:02:40,657 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 09:02:40,657 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 09:02:40,657 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:40,657 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 09:02:40,657 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 09:02:40,657 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration3_Lasso [2024-12-02 09:02:40,657 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 09:02:40,657 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 09:02:40,659 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,661 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,663 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,666 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,668 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,679 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,682 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:40,731 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 09:02:40,731 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 09:02:40,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:40,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:40,733 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:40,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-12-02 09:02:40,736 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 [2024-12-02 09:02:40,746 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 09:02:40,746 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 09:02:40,746 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 09:02:40,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 09:02:40,747 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 09:02:40,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 09:02:40,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 09:02:40,748 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 09:02:40,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-12-02 09:02:40,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:40,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:40,755 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:40,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-12-02 09:02:40,758 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 [2024-12-02 09:02:40,768 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 09:02:40,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 09:02:40,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 09:02:40,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 09:02:40,769 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 09:02:40,769 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 09:02:40,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 09:02:40,770 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 09:02:40,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-12-02 09:02:40,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:40,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:40,777 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:40,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-12-02 09:02:40,779 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 [2024-12-02 09:02:40,790 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 09:02:40,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 09:02:40,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 09:02:40,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 09:02:40,792 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 09:02:40,792 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 09:02:40,796 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 09:02:40,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-12-02 09:02:40,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:40,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:40,806 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:40,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-12-02 09:02:40,809 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 [2024-12-02 09:02:40,820 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 09:02:40,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 09:02:40,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 09:02:40,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 09:02:40,822 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 09:02:40,822 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 09:02:40,826 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 09:02:40,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-12-02 09:02:40,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:40,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:40,833 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:40,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-12-02 09:02:40,836 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 [2024-12-02 09:02:40,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 09:02:40,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 09:02:40,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 09:02:40,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 09:02:40,851 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 09:02:40,851 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 09:02:40,859 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 09:02:40,864 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-12-02 09:02:40,864 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 09:02:40,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:40,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:40,866 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:40,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-12-02 09:02:40,868 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 09:02:40,880 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-12-02 09:02:40,880 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 09:02:40,880 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1, ULTIMATE.start_main_~j~0#1) = 2*ULTIMATE.start_main_~i~0#1 - 2*ULTIMATE.start_main_~j~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~k~0#1 - 1 >= 0] [2024-12-02 09:02:40,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-12-02 09:02:40,888 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-12-02 09:02:40,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:40,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 09:02:40,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:40,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-12-02 09:02:40,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-12-02 09:02:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:40,958 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 09:02:40,959 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:40,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:40,981 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2024-12-02 09:02:40,981 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-12-02 09:02:41,017 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 23 states and 29 transitions. Complement of second has 6 states. [2024-12-02 09:02:41,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 09:02:41,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2024-12-02 09:02:41,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-12-02 09:02:41,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2024-12-02 09:02:41,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 09:02:41,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2024-12-02 09:02:41,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 09:02:41,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2024-12-02 09:02:41,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 09:02:41,019 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2024-12-02 09:02:41,020 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 09:02:41,020 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 17 states and 20 transitions. [2024-12-02 09:02:41,020 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-12-02 09:02:41,021 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-12-02 09:02:41,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 20 transitions. [2024-12-02 09:02:41,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 09:02:41,021 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 20 transitions. [2024-12-02 09:02:41,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 20 transitions. [2024-12-02 09:02:41,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2024-12-02 09:02:41,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:41,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2024-12-02 09:02:41,022 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2024-12-02 09:02:41,022 INFO L425 stractBuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2024-12-02 09:02:41,022 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 09:02:41,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 15 transitions. [2024-12-02 09:02:41,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 09:02:41,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 09:02:41,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 09:02:41,023 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 09:02:41,023 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 09:02:41,023 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_~k~0#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~k~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~k~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~i~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~j~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;havoc main_#t~nondet3#1;main_~n~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;" "assume main_~k~0#1 >= 1;main_~i~0#1 := 0;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume main_~j~0#1 <= main_~i~0#1;" "main_~j~0#1 := main_~j~0#1 + main_~k~0#1;" "assume !(main_~j~0#1 <= main_~i~0#1);" "main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" [2024-12-02 09:02:41,023 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~j~0#1 <= main_~i~0#1;" "main_~j~0#1 := main_~j~0#1 + main_~k~0#1;" [2024-12-02 09:02:41,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:41,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1962537868, now seen corresponding path program 2 times [2024-12-02 09:02:41,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 09:02:41,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214719925] [2024-12-02 09:02:41,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:41,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:41,028 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 09:02:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:41,032 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 09:02:41,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:41,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1637, now seen corresponding path program 2 times [2024-12-02 09:02:41,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 09:02:41,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345404998] [2024-12-02 09:02:41,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:41,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:41,035 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 09:02:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:41,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 09:02:41,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:41,038 INFO L85 PathProgramCache]: Analyzing trace with hash -508247528, now seen corresponding path program 3 times [2024-12-02 09:02:41,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 09:02:41,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965256885] [2024-12-02 09:02:41,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 09:02:41,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 09:02:41,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:41,044 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 09:02:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 09:02:41,049 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 09:02:41,102 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 09:02:41,102 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 09:02:41,103 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 09:02:41,103 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 09:02:41,103 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 09:02:41,103 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:41,103 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 09:02:41,103 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 09:02:41,103 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration4_Lasso [2024-12-02 09:02:41,103 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 09:02:41,103 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 09:02:41,104 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,114 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,116 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,118 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,120 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,121 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,124 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,126 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,128 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,180 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 09:02:41,180 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 09:02:41,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:41,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:41,182 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:41,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-12-02 09:02:41,185 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 09:02:41,185 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 09:02:41,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-12-02 09:02:41,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:41,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:41,210 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:41,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-12-02 09:02:41,212 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 09:02:41,212 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 09:02:41,349 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 09:02:41,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-12-02 09:02:41,353 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 09:02:41,353 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 09:02:41,353 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 09:02:41,353 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 09:02:41,353 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 09:02:41,353 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:41,353 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 09:02:41,353 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 09:02:41,353 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a.c_Iteration4_Lasso [2024-12-02 09:02:41,353 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 09:02:41,353 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 09:02:41,355 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,366 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,369 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,372 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,374 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,376 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,378 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,381 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 09:02:41,430 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 09:02:41,430 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 09:02:41,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:41,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:41,432 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:41,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-12-02 09:02:41,434 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 [2024-12-02 09:02:41,445 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 09:02:41,445 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 09:02:41,445 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 09:02:41,445 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 09:02:41,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 09:02:41,448 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 09:02:41,454 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 09:02:41,462 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2024-12-02 09:02:41,462 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2024-12-02 09:02:41,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 09:02:41,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 09:02:41,464 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 09:02:41,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-12-02 09:02:41,466 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 09:02:41,478 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2024-12-02 09:02:41,478 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 09:02:41,478 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~k~0#1 - 1 >= 0] [2024-12-02 09:02:41,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-12-02 09:02:41,486 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2024-12-02 09:02:41,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:41,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 09:02:41,515 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:41,578 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 09:02:41,578 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:41,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:41,595 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2024-12-02 09:02:41,595 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:41,628 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 18 states and 22 transitions. Complement of second has 6 states. [2024-12-02 09:02:41,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 09:02:41,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:41,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-12-02 09:02:41,629 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 11 letters. Loop has 2 letters. [2024-12-02 09:02:41,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 09:02:41,630 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 09:02:41,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:41,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 09:02:41,659 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:41,733 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 09:02:41,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:41,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:41,750 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2024-12-02 09:02:41,750 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:41,780 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 18 states and 22 transitions. Complement of second has 6 states. [2024-12-02 09:02:41,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 09:02:41,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:41,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-12-02 09:02:41,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 11 letters. Loop has 2 letters. [2024-12-02 09:02:41,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 09:02:41,782 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 09:02:41,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 09:02:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:41,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 09:02:41,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 09:02:41,883 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 09:02:41,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 09:02:41,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 09:02:41,902 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2024-12-02 09:02:41,902 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:41,935 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 15 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 16 states and 20 transitions. Complement of second has 5 states. [2024-12-02 09:02:41,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 09:02:41,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 09:02:41,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-12-02 09:02:41,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2024-12-02 09:02:41,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 09:02:41,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 13 letters. Loop has 2 letters. [2024-12-02 09:02:41,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 09:02:41,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 4 letters. [2024-12-02 09:02:41,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 09:02:41,937 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2024-12-02 09:02:41,938 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 09:02:41,938 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2024-12-02 09:02:41,938 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-12-02 09:02:41,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-12-02 09:02:41,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-12-02 09:02:41,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 09:02:41,938 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 09:02:41,938 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 09:02:41,938 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 09:02:41,938 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-12-02 09:02:41,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-12-02 09:02:41,938 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 09:02:41,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-12-02 09:02:41,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 09:02:41 BoogieIcfgContainer [2024-12-02 09:02:41,945 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 09:02:41,945 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 09:02:41,945 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 09:02:41,946 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 09:02:41,946 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:02:38" (3/4) ... [2024-12-02 09:02:41,948 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 09:02:41,949 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 09:02:41,950 INFO L158 Benchmark]: Toolchain (without parser) took 3660.74ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 49.5MB in the end (delta: 67.7MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2024-12-02 09:02:41,950 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 09:02:41,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 138.11ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 107.2MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 09:02:41,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.81ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 106.2MB in the end (delta: 978.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 09:02:41,951 INFO L158 Benchmark]: Boogie Preprocessor took 18.04ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 105.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 09:02:41,951 INFO L158 Benchmark]: RCFGBuilder took 153.64ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 96.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 09:02:41,951 INFO L158 Benchmark]: BuchiAutomizer took 3325.09ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 49.5MB in the end (delta: 46.5MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2024-12-02 09:02:41,952 INFO L158 Benchmark]: Witness Printer took 3.97ms. Allocated memory is still 142.6MB. Free memory was 49.5MB in the beginning and 49.5MB in the end (delta: 15.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 09:02:41,953 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 138.11ms. Allocated memory is still 142.6MB. Free memory was 116.9MB in the beginning and 107.2MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.81ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 106.2MB in the end (delta: 978.7kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.04ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 105.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 153.64ms. Allocated memory is still 142.6MB. Free memory was 105.0MB in the beginning and 96.2MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3325.09ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 49.5MB in the end (delta: 46.5MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * Witness Printer took 3.97ms. Allocated memory is still 142.6MB. Free memory was 49.5MB in the beginning and 49.5MB in the end (delta: 15.8kB). 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 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function ((long) -1 * i) and consists of 6 locations. One deterministic module has affine ranking function (((long) -1 * i) + n) and consists of 3 locations. One deterministic module has affine ranking function ((((long) -2 * j) + ((long) 2 * i)) + 1) and consists of 4 locations. One nondeterministic module has affine ranking function ((((long) -2 * j) + ((long) 2 * i)) + 1) and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 79 IncrementalHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 40 mSDtfsCounter, 79 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax159 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf93 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-12-02 09:02:41,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-12-02 09:02:42,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 09:02:42,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e148fa-e776-4514-b756-6df2b41c8b2a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE