./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1.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_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB --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 ef399329f84d2482fbc6cd637d6b986ccb5018221a1a0504f889d0bed5430f95 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:11:18,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:11:18,178 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-28 04:11:18,183 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:11:18,183 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:11:18,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:11:18,209 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:11:18,209 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:11:18,210 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:11:18,210 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:11:18,210 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:11:18,210 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:11:18,210 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:11:18,210 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 04:11:18,211 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 04:11:18,211 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 04:11:18,211 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 04:11:18,211 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 04:11:18,211 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 04:11:18,211 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:11:18,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 04:11:18,211 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:11:18,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:11:18,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 04:11:18,212 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 04:11:18,212 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 04:11:18,212 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:11:18,213 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:11:18,213 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 04:11:18,213 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:11:18,213 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:11:18,213 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:11:18,214 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:11:18,214 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:11:18,214 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 04:11:18,215 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 04:11:18,215 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_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB 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 -> ef399329f84d2482fbc6cd637d6b986ccb5018221a1a0504f889d0bed5430f95 [2024-11-28 04:11:18,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:11:18,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:11:18,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:11:18,584 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:11:18,584 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:11:18,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1.c [2024-11-28 04:11:21,630 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/data/00d55d8b7/31a15b1db46f4ed0a49c97c848f6a5a2/FLAG2c6adc5a6 [2024-11-28 04:11:21,870 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:11:21,871 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1.c [2024-11-28 04:11:21,891 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/data/00d55d8b7/31a15b1db46f4ed0a49c97c848f6a5a2/FLAG2c6adc5a6 [2024-11-28 04:11:21,918 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/data/00d55d8b7/31a15b1db46f4ed0a49c97c848f6a5a2 [2024-11-28 04:11:21,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:11:21,923 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:11:21,925 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:11:21,925 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:11:21,938 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:11:21,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:11:21" (1/1) ... [2024-11-28 04:11:21,939 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58488729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:11:21, skipping insertion in model container [2024-11-28 04:11:21,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:11:21" (1/1) ... [2024-11-28 04:11:21,957 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:11:22,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:11:22,121 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:11:22,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:11:22,150 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:11:22,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:11:22 WrapperNode [2024-11-28 04:11:22,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:11:22,151 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:11:22,152 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:11:22,152 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:11:22,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:11:22" (1/1) ... [2024-11-28 04:11:22,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:11:22" (1/1) ... [2024-11-28 04:11:22,188 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2024-11-28 04:11:22,188 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:11:22,189 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:11:22,189 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:11:22,189 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:11:22,200 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:11:22" (1/1) ... [2024-11-28 04:11:22,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:11:22" (1/1) ... [2024-11-28 04:11:22,202 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:11:22" (1/1) ... [2024-11-28 04:11:22,208 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-28 04:11:22,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:11:22" (1/1) ... [2024-11-28 04:11:22,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:11:22" (1/1) ... [2024-11-28 04:11:22,210 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:11:22" (1/1) ... [2024-11-28 04:11:22,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:11:22" (1/1) ... [2024-11-28 04:11:22,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:11:22" (1/1) ... [2024-11-28 04:11:22,217 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:11:22" (1/1) ... [2024-11-28 04:11:22,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:11:22" (1/1) ... [2024-11-28 04:11:22,218 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:11:22,219 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:11:22,219 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:11:22,219 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:11:22,224 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:11:22" (1/1) ... [2024-11-28 04:11:22,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:22,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:22,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:22,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 04:11:22,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:11:22,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:11:22,399 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:11:22,401 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:11:22,478 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-28 04:11:22,478 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:11:22,487 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:11:22,487 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:11:22,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:11:22 BoogieIcfgContainer [2024-11-28 04:11:22,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:11:22,489 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 04:11:22,489 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 04:11:22,496 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 04:11:22,497 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:11:22,497 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 04:11:21" (1/3) ... [2024-11-28 04:11:22,498 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@179c9ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:11:22, skipping insertion in model container [2024-11-28 04:11:22,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:11:22,499 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:11:22" (2/3) ... [2024-11-28 04:11:22,499 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@179c9ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:11:22, skipping insertion in model container [2024-11-28 04:11:22,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:11:22,499 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:11:22" (3/3) ... [2024-11-28 04:11:22,501 INFO L363 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Fig1.c [2024-11-28 04:11:22,557 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 04:11:22,557 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 04:11:22,557 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 04:11:22,557 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 04:11:22,557 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 04:11:22,558 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 04:11:22,558 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 04:11:22,558 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 04:11:22,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:11:22,580 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 04:11:22,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:11:22,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:11:22,586 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 04:11:22,586 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 04:11:22,586 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 04:11:22,587 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:11:22,588 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 04:11:22,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:11:22,590 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:11:22,590 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 04:11:22,590 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-28 04:11:22,598 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" [2024-11-28 04:11:22,598 INFO L749 eck$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;" [2024-11-28 04:11:22,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:22,607 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 04:11:22,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:11:22,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062684654] [2024-11-28 04:11:22,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:22,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:22,694 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:11:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:22,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:11:22,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:22,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1174027, now seen corresponding path program 1 times [2024-11-28 04:11:22,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:11:22,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027421853] [2024-11-28 04:11:22,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:22,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:22,728 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:11:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:22,734 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:11:22,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:22,736 INFO L85 PathProgramCache]: Analyzing trace with hash 889601229, now seen corresponding path program 1 times [2024-11-28 04:11:22,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:11:22,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241785103] [2024-11-28 04:11:22,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:22,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:22,745 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:11:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:22,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:11:22,886 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:11:22,887 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:11:22,887 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:11:22,888 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:11:22,888 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:11:22,889 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:22,890 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:11:22,890 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:11:22,890 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1.c_Iteration1_Loop [2024-11-28 04:11:22,890 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:11:22,890 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:11:22,917 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:22,951 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:22,961 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:22,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:23,058 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:11:23,059 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:11:23,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:23,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:23,066 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:23,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-28 04:11:23,069 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:11:23,069 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:11:23,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-28 04:11:23,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:23,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:23,110 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:23,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-28 04:11:23,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:11:23,117 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:11:23,164 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:11:23,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:23,169 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:11:23,169 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:11:23,170 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:11:23,170 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:11:23,170 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:11:23,170 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:23,170 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:11:23,170 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:11:23,170 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1.c_Iteration1_Loop [2024-11-28 04:11:23,170 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:11:23,170 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:11:23,173 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:23,188 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:23,193 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:23,198 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:23,264 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:11:23,268 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:11:23,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:23,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:23,272 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:23,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-28 04:11:23,277 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 [2024-11-28 04:11:23,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:11:23,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:11:23,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:11:23,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:11:23,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:11:23,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:11:23,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:11:23,310 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:11:23,317 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 04:11:23,320 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 04:11:23,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:23,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:23,325 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:23,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-28 04:11:23,327 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:11:23,328 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:11:23,328 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:11:23,329 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 [] [2024-11-28 04:11:23,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-28 04:11:23,342 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:11:23,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:23,384 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:11:23,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:23,408 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:11:23,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:23,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:11:23,543 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 [2024-11-28 04:11:23,545 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:11:23,685 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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 35 states and 50 transitions. Complement of second has 10 states. [2024-11-28 04:11:23,693 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 [2024-11-28 04:11:23,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:11:23,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-28 04:11:23,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 29 transitions. [2024-11-28 04:11:23,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 2 letters. Loop has 4 letters. [2024-11-28 04:11:23,714 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:23,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 6 letters. Loop has 4 letters. [2024-11-28 04:11:23,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:23,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 29 transitions. Stem has 2 letters. Loop has 8 letters. [2024-11-28 04:11:23,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:23,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 50 transitions. [2024-11-28 04:11:23,722 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-28 04:11:23,726 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 20 states and 25 transitions. [2024-11-28 04:11:23,728 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2024-11-28 04:11:23,728 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-28 04:11:23,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2024-11-28 04:11:23,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:11:23,729 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2024-11-28 04:11:23,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2024-11-28 04:11:23,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2024-11-28 04:11:23,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:11:23,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2024-11-28 04:11:23,757 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-11-28 04:11:23,759 INFO L425 stractBuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-11-28 04:11:23,759 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 04:11:23,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2024-11-28 04:11:23,760 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2024-11-28 04:11:23,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:11:23,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:11:23,760 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-28 04:11:23,761 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2024-11-28 04:11:23,761 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume main_~i~0#1 < main_~n~0#1;" [2024-11-28 04:11:23,761 INFO L749 eck$LassoCheckResult]: Loop: "main_~j~0#1 := 0;" "assume main_~j~0#1 <= main_~i~0#1;" "main_~j~0#1 := 1 + main_~j~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;" [2024-11-28 04:11:23,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:23,764 INFO L85 PathProgramCache]: Analyzing trace with hash 29861, now seen corresponding path program 1 times [2024-11-28 04:11:23,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:11:23,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824372847] [2024-11-28 04:11:23,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:23,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:23,771 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:11:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:23,776 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:11:23,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:23,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1248352307, now seen corresponding path program 1 times [2024-11-28 04:11:23,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:11:23,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833883049] [2024-11-28 04:11:23,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:23,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:23,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:23,789 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:11:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:23,797 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:11:23,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:23,799 INFO L85 PathProgramCache]: Analyzing trace with hash -2134916649, now seen corresponding path program 1 times [2024-11-28 04:11:23,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:11:23,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893355102] [2024-11-28 04:11:23,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:23,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:23,812 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:11:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:23,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:11:23,865 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:11:23,865 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:11:23,865 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:11:23,865 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:11:23,865 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:11:23,865 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:23,865 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:11:23,865 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:11:23,865 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1.c_Iteration2_Loop [2024-11-28 04:11:23,865 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:11:23,865 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:11:23,867 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:23,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:23,874 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:23,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:23,889 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:23,963 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:11:23,963 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:11:23,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:23,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:23,968 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:23,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-28 04:11:23,971 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:11:23,971 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:11:23,997 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:11:23,997 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: [] [2024-11-28 04:11:24,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:24,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:24,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:24,009 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:24,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-28 04:11:24,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:11:24,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:11:24,032 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:11:24,032 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: [] [2024-11-28 04:11:24,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-28 04:11:24,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:24,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:24,043 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:24,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-28 04:11:24,050 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:11:24,050 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:11:24,077 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:11:24,078 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: [] [2024-11-28 04:11:24,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:24,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:24,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:24,092 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:24,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-28 04:11:24,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:11:24,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:11:24,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:24,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:24,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:24,126 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:24,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-28 04:11:24,131 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:11:24,131 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:11:24,158 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:11:24,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-28 04:11:24,169 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:11:24,169 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:11:24,169 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:11:24,169 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:11:24,169 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:11:24,170 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:24,170 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:11:24,170 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:11:24,172 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1.c_Iteration2_Loop [2024-11-28 04:11:24,172 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:11:24,175 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:11:24,176 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:24,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:24,187 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:24,192 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:24,206 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:24,264 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:11:24,265 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:11:24,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:24,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:24,267 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:24,271 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 [2024-11-28 04:11:24,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-28 04:11:24,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:11:24,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:11:24,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:11:24,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:11:24,289 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:11:24,290 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:11:24,295 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:11:24,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-28 04:11:24,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:24,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:24,306 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:24,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-28 04:11:24,310 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 [2024-11-28 04:11:24,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:11:24,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:11:24,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:11:24,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:11:24,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:11:24,326 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:11:24,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:11:24,328 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:11:24,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:24,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:24,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:24,341 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:24,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-28 04:11:24,348 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 [2024-11-28 04:11:24,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:11:24,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:11:24,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:11:24,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:11:24,365 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:11:24,365 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:11:24,377 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:11:24,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:24,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:24,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:24,388 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:24,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-28 04:11:24,393 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 [2024-11-28 04:11:24,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:11:24,407 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:11:24,407 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:11:24,407 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:11:24,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:11:24,413 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:11:24,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:11:24,416 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:11:24,419 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 04:11:24,419 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 04:11:24,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:24,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:24,421 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:24,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-28 04:11:24,425 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:11:24,425 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:11:24,426 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:11:24,426 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2024-11-28 04:11:24,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:24,433 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:11:24,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:24,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:11:24,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:24,483 WARN L254 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:11:24,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:24,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:11:24,614 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2024-11-28 04:11:24,614 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 7 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 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) [2024-11-28 04:11:24,705 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 7. Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 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 53 states and 68 transitions. Complement of second has 10 states. [2024-11-28 04:11:24,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-11-28 04:11:24,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 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) [2024-11-28 04:11:24,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2024-11-28 04:11:24,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 3 letters. Loop has 6 letters. [2024-11-28 04:11:24,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:24,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 9 letters. Loop has 6 letters. [2024-11-28 04:11:24,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:24,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 3 letters. Loop has 12 letters. [2024-11-28 04:11:24,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:24,708 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 68 transitions. [2024-11-28 04:11:24,710 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-28 04:11:24,711 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 41 states and 52 transitions. [2024-11-28 04:11:24,711 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2024-11-28 04:11:24,711 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-11-28 04:11:24,711 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 52 transitions. [2024-11-28 04:11:24,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:11:24,711 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 52 transitions. [2024-11-28 04:11:24,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 52 transitions. [2024-11-28 04:11:24,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 31. [2024-11-28 04:11:24,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:11:24,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2024-11-28 04:11:24,714 INFO L240 hiAutomatonCegarLoop]: Abstraction has 31 states and 41 transitions. [2024-11-28 04:11:24,715 INFO L425 stractBuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2024-11-28 04:11:24,715 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 04:11:24,715 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 41 transitions. [2024-11-28 04:11:24,716 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-28 04:11:24,716 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:11:24,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:11:24,716 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-28 04:11:24,716 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1] [2024-11-28 04:11:24,716 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" [2024-11-28 04:11:24,716 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~j~0#1 <= main_~i~0#1;" "main_~j~0#1 := 1 + main_~j~0#1;" "assume main_~j~0#1 <= main_~i~0#1;" "main_~j~0#1 := 1 + main_~j~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;" [2024-11-28 04:11:24,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:24,717 INFO L85 PathProgramCache]: Analyzing trace with hash 925703, now seen corresponding path program 1 times [2024-11-28 04:11:24,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:11:24,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478535450] [2024-11-28 04:11:24,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:24,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:24,725 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:11:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:24,730 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:11:24,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:24,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1915131757, now seen corresponding path program 2 times [2024-11-28 04:11:24,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:11:24,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245507467] [2024-11-28 04:11:24,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:24,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:24,746 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:11:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:24,758 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:11:24,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:24,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1486740839, now seen corresponding path program 2 times [2024-11-28 04:11:24,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:11:24,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504729754] [2024-11-28 04:11:24,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:24,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:24,774 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:11:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:24,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:11:24,847 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:11:24,847 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:11:24,847 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:11:24,848 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:11:24,848 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:11:24,848 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:24,848 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:11:24,848 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:11:24,848 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1.c_Iteration3_Loop [2024-11-28 04:11:24,848 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:11:24,848 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:11:24,849 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:24,853 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:24,865 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:24,920 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:11:24,920 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:11:24,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:24,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:24,922 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:24,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-28 04:11:24,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:11:24,926 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:11:24,950 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 04:11:24,950 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 04:11:24,959 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-28 04:11:24,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:24,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:24,962 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:24,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-28 04:11:24,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:11:24,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:11:24,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:24,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:24,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:24,996 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:24,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-11-28 04:11:25,000 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:11:25,000 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:11:25,103 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:11:25,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-11-28 04:11:25,106 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:11:25,106 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:11:25,106 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:11:25,106 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:11:25,107 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:11:25,107 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:25,107 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:11:25,107 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:11:25,107 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1.c_Iteration3_Loop [2024-11-28 04:11:25,107 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:11:25,107 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:11:25,108 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:25,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:25,124 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:25,180 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:11:25,180 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:11:25,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:25,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:25,182 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:25,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-11-28 04:11:25,188 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 [2024-11-28 04:11:25,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:11:25,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:11:25,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:11:25,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:11:25,203 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-28 04:11:25,203 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-28 04:11:25,207 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 04:11:25,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-11-28 04:11:25,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:25,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:25,220 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:25,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-11-28 04:11:25,223 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 [2024-11-28 04:11:25,238 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:11:25,238 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:11:25,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:11:25,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:11:25,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:11:25,240 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:11:25,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:11:25,244 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:11:25,248 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 04:11:25,248 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 04:11:25,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:25,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:25,252 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:25,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-11-28 04:11:25,254 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:11:25,255 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:11:25,255 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:11:25,255 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1, ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~n~0#1 - 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-28 04:11:25,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-11-28 04:11:25,264 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:11:25,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:25,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:11:25,290 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:25,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:11:25,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:25,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:11:25,347 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 [2024-11-28 04:11:25,347 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:11:25,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:25,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-28 04:11:25,420 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 41 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 71 states and 95 transitions. Complement of second has 6 states. [2024-11-28 04:11:25,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 04:11:25,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:11:25,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-11-28 04:11:25,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 4 letters. Loop has 8 letters. [2024-11-28 04:11:25,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:25,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 12 letters. Loop has 8 letters. [2024-11-28 04:11:25,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:25,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 4 letters. Loop has 16 letters. [2024-11-28 04:11:25,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:25,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 95 transitions. [2024-11-28 04:11:25,427 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 04:11:25,429 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 52 states and 69 transitions. [2024-11-28 04:11:25,430 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-28 04:11:25,430 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2024-11-28 04:11:25,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 69 transitions. [2024-11-28 04:11:25,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:11:25,430 INFO L218 hiAutomatonCegarLoop]: Abstraction has 52 states and 69 transitions. [2024-11-28 04:11:25,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 69 transitions. [2024-11-28 04:11:25,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 45. [2024-11-28 04:11:25,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 45 states have (on average 1.3555555555555556) internal successors, (61), 44 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:11:25,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 61 transitions. [2024-11-28 04:11:25,436 INFO L240 hiAutomatonCegarLoop]: Abstraction has 45 states and 61 transitions. [2024-11-28 04:11:25,436 INFO L425 stractBuchiCegarLoop]: Abstraction has 45 states and 61 transitions. [2024-11-28 04:11:25,436 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 04:11:25,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 45 states and 61 transitions. [2024-11-28 04:11:25,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 04:11:25,439 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:11:25,439 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:11:25,439 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-28 04:11:25,439 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:11:25,440 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume main_~j~0#1 <= main_~i~0#1;" [2024-11-28 04:11:25,440 INFO L749 eck$LassoCheckResult]: Loop: "main_~j~0#1 := 1 + main_~j~0#1;" "assume main_~j~0#1 <= main_~i~0#1;" [2024-11-28 04:11:25,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:25,443 INFO L85 PathProgramCache]: Analyzing trace with hash 28696811, now seen corresponding path program 1 times [2024-11-28 04:11:25,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:11:25,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194156455] [2024-11-28 04:11:25,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:25,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:25,453 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:11:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:25,460 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:11:25,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:25,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1661, now seen corresponding path program 1 times [2024-11-28 04:11:25,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:11:25,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284038910] [2024-11-28 04:11:25,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:25,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:25,468 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:11:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:25,470 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:11:25,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:25,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1807832295, now seen corresponding path program 1 times [2024-11-28 04:11:25,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:11:25,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840051825] [2024-11-28 04:11:25,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:25,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:25,483 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:11:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:25,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:11:25,517 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:11:25,517 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:11:25,517 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:11:25,518 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:11:25,518 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:11:25,518 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:25,518 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:11:25,518 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:11:25,518 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1.c_Iteration4_Loop [2024-11-28 04:11:25,518 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:11:25,518 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:11:25,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:25,532 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:25,538 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:25,581 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:11:25,581 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:11:25,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:25,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:25,584 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:25,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-11-28 04:11:25,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:11:25,588 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:11:25,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-11-28 04:11:25,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:25,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:25,618 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:25,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-28 04:11:25,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:11:25,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:11:25,745 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:11:25,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-28 04:11:25,748 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:11:25,748 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:11:25,748 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:11:25,748 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:11:25,749 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:11:25,749 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:25,749 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:11:25,749 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:11:25,749 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1.c_Iteration4_Loop [2024-11-28 04:11:25,749 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:11:25,749 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:11:25,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:25,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:25,762 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:25,810 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:11:25,810 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:11:25,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:25,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:25,812 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:25,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-28 04:11:25,818 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 [2024-11-28 04:11:25,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:11:25,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:11:25,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:11:25,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:11:25,833 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:11:25,834 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:11:25,834 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:11:25,839 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:11:25,845 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2024-11-28 04:11:25,845 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 04:11:25,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:25,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:25,848 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:25,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-28 04:11:25,851 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:11:25,851 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:11:25,851 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:11:25,852 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1, ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~j~0#1 + 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-28 04:11:25,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:25,861 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:11:25,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:25,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:11:25,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:25,896 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:11:25,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:25,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:11:25,914 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 [2024-11-28 04:11:25,914 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 45 states and 61 transitions. cyclomatic complexity: 21 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2024-11-28 04:11:25,937 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 45 states and 61 transitions. cyclomatic complexity: 21. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 80 states and 107 transitions. Complement of second has 5 states. [2024-11-28 04:11:25,941 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 [2024-11-28 04:11:25,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) [2024-11-28 04:11:25,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2024-11-28 04:11:25,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2024-11-28 04:11:25,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:25,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2024-11-28 04:11:25,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:25,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2024-11-28 04:11:25,943 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:25,943 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 107 transitions. [2024-11-28 04:11:25,945 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 04:11:25,948 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 74 states and 98 transitions. [2024-11-28 04:11:25,948 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-28 04:11:25,948 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-28 04:11:25,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 98 transitions. [2024-11-28 04:11:25,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 04:11:25,949 INFO L218 hiAutomatonCegarLoop]: Abstraction has 74 states and 98 transitions. [2024-11-28 04:11:25,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states and 98 transitions. [2024-11-28 04:11:25,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2024-11-28 04:11:25,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 70 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:11:25,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 95 transitions. [2024-11-28 04:11:25,959 INFO L240 hiAutomatonCegarLoop]: Abstraction has 71 states and 95 transitions. [2024-11-28 04:11:25,959 INFO L425 stractBuchiCegarLoop]: Abstraction has 71 states and 95 transitions. [2024-11-28 04:11:25,959 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 04:11:25,959 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 95 transitions. [2024-11-28 04:11:25,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-28 04:11:25,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:11:25,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:11:25,961 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:25,961 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-28 04:11:25,961 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~i~0#1, main_~j~0#1, main_~n~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~n~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~n~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" "assume main_~j~0#1 <= main_~i~0#1;" "main_~j~0#1 := 1 + main_~j~0#1;" "assume !(main_~j~0#1 <= main_~i~0#1);" "main_~i~0#1 := 1 + main_~i~0#1;" "assume main_~i~0#1 < main_~n~0#1;" "main_~j~0#1 := 0;" [2024-11-28 04:11:25,961 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~j~0#1 <= main_~i~0#1;" "main_~j~0#1 := 1 + main_~j~0#1;" [2024-11-28 04:11:25,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:25,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1757906667, now seen corresponding path program 3 times [2024-11-28 04:11:25,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:11:25,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882596380] [2024-11-28 04:11:25,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:25,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:25,972 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:11:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:25,977 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:11:25,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:25,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1541, now seen corresponding path program 2 times [2024-11-28 04:11:25,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:11:25,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510287443] [2024-11-28 04:11:25,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:25,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:25,982 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:11:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:25,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:11:25,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:25,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1426159079, now seen corresponding path program 4 times [2024-11-28 04:11:25,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:11:25,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215075116] [2024-11-28 04:11:25,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:11:25,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:25,991 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:11:25,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:11:25,997 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:11:26,023 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:11:26,023 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:11:26,023 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:11:26,023 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:11:26,023 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 04:11:26,023 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:26,023 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:11:26,023 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:11:26,023 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1.c_Iteration5_Loop [2024-11-28 04:11:26,023 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:11:26,024 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:11:26,024 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:26,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:26,040 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:26,078 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:11:26,078 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 04:11:26,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:26,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:26,081 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:26,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-28 04:11:26,085 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 04:11:26,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:11:26,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:26,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:26,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:26,112 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:26,117 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 04:11:26,117 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 04:11:26,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-28 04:11:26,203 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 04:11:26,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:26,206 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 04:11:26,206 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 04:11:26,206 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 04:11:26,206 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 04:11:26,207 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 04:11:26,207 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:26,207 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 04:11:26,207 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 04:11:26,207 INFO L132 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig1.c_Iteration5_Loop [2024-11-28 04:11:26,207 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 04:11:26,207 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 04:11:26,208 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:26,216 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:26,220 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 04:11:26,258 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 04:11:26,258 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 04:11:26,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:26,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:26,261 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:26,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-28 04:11:26,265 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 [2024-11-28 04:11:26,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 04:11:26,280 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 04:11:26,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 04:11:26,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 04:11:26,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 04:11:26,281 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 04:11:26,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 04:11:26,287 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 04:11:26,291 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 04:11:26,291 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 04:11:26,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:11:26,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:26,293 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:11:26,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-28 04:11:26,298 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 04:11:26,298 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 04:11:26,298 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 04:11:26,298 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 [] [2024-11-28 04:11:26,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-11-28 04:11:26,308 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 04:11:26,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:26,332 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:11:26,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:26,350 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:11:26,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:26,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:11:26,370 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 [2024-11-28 04:11:26,370 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 95 transitions. cyclomatic complexity: 34 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:11:26,393 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 95 transitions. cyclomatic complexity: 34. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 86 states and 114 transitions. Complement of second has 5 states. [2024-11-28 04:11:26,396 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 [2024-11-28 04:11:26,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:11:26,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-11-28 04:11:26,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 10 letters. Loop has 2 letters. [2024-11-28 04:11:26,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:26,398 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 04:11:26,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:26,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:11:26,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:26,455 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:11:26,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:26,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:11:26,483 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 04:11:26,483 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 95 transitions. cyclomatic complexity: 34 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:11:26,507 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 95 transitions. cyclomatic complexity: 34. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 86 states and 114 transitions. Complement of second has 5 states. [2024-11-28 04:11:26,510 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 [2024-11-28 04:11:26,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:11:26,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2024-11-28 04:11:26,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 10 letters. Loop has 2 letters. [2024-11-28 04:11:26,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:26,511 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 04:11:26,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:26,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:26,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:11:26,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:26,558 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:11:26,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:26,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:11:26,583 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-28 04:11:26,583 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 95 transitions. cyclomatic complexity: 34 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:11:26,608 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 95 transitions. cyclomatic complexity: 34. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 94 states and 125 transitions. Complement of second has 4 states. [2024-11-28 04:11:26,613 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 [2024-11-28 04:11:26,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:11:26,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2024-11-28 04:11:26,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2024-11-28 04:11:26,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:26,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 2 letters. [2024-11-28 04:11:26,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:26,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2024-11-28 04:11:26,614 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 04:11:26,615 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 125 transitions. [2024-11-28 04:11:26,618 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 04:11:26,618 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 0 states and 0 transitions. [2024-11-28 04:11:26,618 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-28 04:11:26,619 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-28 04:11:26,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-28 04:11:26,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 04:11:26,619 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:11:26,619 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:11:26,619 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:11:26,619 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-28 04:11:26,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:11:26,619 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 04:11:26,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-28 04:11:26,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 04:11:26 BoogieIcfgContainer [2024-11-28 04:11:26,627 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 04:11:26,628 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:11:26,628 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:11:26,628 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:11:26,629 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:11:22" (3/4) ... [2024-11-28 04:11:26,631 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:11:26,632 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:11:26,633 INFO L158 Benchmark]: Toolchain (without parser) took 4710.11ms. Allocated memory is still 117.4MB. Free memory was 93.4MB in the beginning and 44.9MB in the end (delta: 48.6MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2024-11-28 04:11:26,633 INFO L158 Benchmark]: CDTParser took 0.81ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:11:26,633 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.29ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 83.3MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:11:26,634 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.65ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 82.4MB in the end (delta: 899.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:11:26,634 INFO L158 Benchmark]: Boogie Preprocessor took 29.56ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 81.5MB in the end (delta: 894.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:11:26,634 INFO L158 Benchmark]: RCFGBuilder took 269.05ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 73.2MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:11:26,634 INFO L158 Benchmark]: BuchiAutomizer took 4138.35ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 45.6MB in the end (delta: 27.6MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2024-11-28 04:11:26,635 INFO L158 Benchmark]: Witness Printer took 4.21ms. Allocated memory is still 117.4MB. Free memory was 45.6MB in the beginning and 44.9MB in the end (delta: 724.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:11:26,636 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81ms. Allocated memory is still 117.4MB. Free memory is still 72.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.29ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 83.3MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.65ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 82.4MB in the end (delta: 899.0kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.56ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 81.5MB in the end (delta: 894.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 269.05ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 73.2MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4138.35ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 45.6MB in the end (delta: 27.6MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * Witness Printer took 4.21ms. Allocated memory is still 117.4MB. Free memory was 45.6MB in the beginning and 44.9MB in the end (delta: 724.0kB). 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 (0 trivial, 4 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) -2 * i) + 1) and consists of 6 locations. One deterministic module has affine ranking function (((long) -1 * i) + n) and consists of 4 locations. One deterministic module has affine ranking function (((long) -1 * j) + i) and consists of 3 locations. One nondeterministic module has affine ranking function ((((long) -2 * j) + ((long) 2 * i)) + 1) and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 2.7s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 23 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 [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 4/5 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 60 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 36 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax195 hnf100 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq167 hnf92 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-28 04:11:26,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:26,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:27,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e86a2017-adcc-4219-ab58-d12af61913fc/bin/uautomizer-verify-aQ6SnzHsRB/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