./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.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_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7a5d554c80523420ffafe318e54a94b7662019572fad78d6e8fce2ccc83674b0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:32:45,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:32:45,126 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-12-02 08:32:45,131 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:32:45,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:32:45,153 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:32:45,154 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:32:45,154 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:32:45,154 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:32:45,154 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:32:45,155 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:32:45,155 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:32:45,155 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:32:45,155 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 08:32:45,155 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 08:32:45,155 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 08:32:45,155 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 08:32:45,155 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 08:32:45,156 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 08:32:45,156 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:32:45,156 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 08:32:45,156 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:32:45,156 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:32:45,156 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 08:32:45,156 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 08:32:45,156 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 08:32:45,156 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 08:32:45,156 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:32:45,156 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 08:32:45,157 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:32:45,157 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:32:45,157 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:32:45,157 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:32:45,157 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:32:45,157 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 08:32:45,157 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 08:32:45,157 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_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a5d554c80523420ffafe318e54a94b7662019572fad78d6e8fce2ccc83674b0 [2024-12-02 08:32:45,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:32:45,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:32:45,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:32:45,398 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:32:45,399 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:32:45,400 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2024-12-02 08:32:48,134 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/data/598362307/1bcb8b0ca3eb4a9abd560b15ba2e11cd/FLAG029c1a919 [2024-12-02 08:32:48,308 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:32:48,308 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/sv-benchmarks/c/termination-crafted/McCarthy91_Iteration.c [2024-12-02 08:32:48,313 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/data/598362307/1bcb8b0ca3eb4a9abd560b15ba2e11cd/FLAG029c1a919 [2024-12-02 08:32:48,325 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/data/598362307/1bcb8b0ca3eb4a9abd560b15ba2e11cd [2024-12-02 08:32:48,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:32:48,328 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:32:48,330 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:32:48,330 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:32:48,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:32:48,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:32:48" (1/1) ... [2024-12-02 08:32:48,335 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc98cfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:48, skipping insertion in model container [2024-12-02 08:32:48,336 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:32:48" (1/1) ... [2024-12-02 08:32:48,348 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:32:48,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:32:48,479 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:32:48,491 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:32:48,502 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:32:48,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:48 WrapperNode [2024-12-02 08:32:48,502 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:32:48,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:32:48,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:32:48,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:32:48,508 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:48" (1/1) ... [2024-12-02 08:32:48,511 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:48" (1/1) ... [2024-12-02 08:32:48,522 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2024-12-02 08:32:48,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:32:48,522 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:32:48,523 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:32:48,523 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:32:48,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:48" (1/1) ... [2024-12-02 08:32:48,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:48" (1/1) ... [2024-12-02 08:32:48,530 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:48" (1/1) ... [2024-12-02 08:32:48,533 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 08:32:48,534 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:48" (1/1) ... [2024-12-02 08:32:48,534 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:48" (1/1) ... [2024-12-02 08:32:48,535 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:48" (1/1) ... [2024-12-02 08:32:48,535 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:48" (1/1) ... [2024-12-02 08:32:48,539 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:48" (1/1) ... [2024-12-02 08:32:48,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:48" (1/1) ... [2024-12-02 08:32:48,540 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:48" (1/1) ... [2024-12-02 08:32:48,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:32:48,541 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:32:48,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:32:48,541 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:32:48,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:48" (1/1) ... [2024-12-02 08:32:48,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:48,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:48,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:48,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 08:32:48,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:32:48,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:32:48,646 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:32:48,647 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:32:48,694 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-12-02 08:32:48,694 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:32:48,701 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:32:48,701 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 08:32:48,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:32:48 BoogieIcfgContainer [2024-12-02 08:32:48,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:32:48,703 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 08:32:48,703 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 08:32:48,707 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 08:32:48,708 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 08:32:48,708 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 08:32:48" (1/3) ... [2024-12-02 08:32:48,709 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a932b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 08:32:48, skipping insertion in model container [2024-12-02 08:32:48,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 08:32:48,709 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:32:48" (2/3) ... [2024-12-02 08:32:48,709 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4a932b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 08:32:48, skipping insertion in model container [2024-12-02 08:32:48,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 08:32:48,709 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:32:48" (3/3) ... [2024-12-02 08:32:48,710 INFO L363 chiAutomizerObserver]: Analyzing ICFG McCarthy91_Iteration.c [2024-12-02 08:32:48,752 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 08:32:48,752 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 08:32:48,752 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 08:32:48,752 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 08:32:48,752 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 08:32:48,752 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 08:32:48,753 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 08:32:48,753 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 08:32:48,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:48,766 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 08:32:48,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:32:48,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:32:48,770 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 08:32:48,770 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 08:32:48,770 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 08:32:48,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:48,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 08:32:48,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:32:48,771 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:32:48,772 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 08:32:48,772 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 08:32:48,777 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" [2024-12-02 08:32:48,778 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" [2024-12-02 08:32:48,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:48,782 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-12-02 08:32:48,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:48,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673806502] [2024-12-02 08:32:48,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:48,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:48,843 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:48,861 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:48,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:48,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1225, now seen corresponding path program 1 times [2024-12-02 08:32:48,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:48,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609668312] [2024-12-02 08:32:48,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:48,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:48,875 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:48,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:48,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:48,881 INFO L85 PathProgramCache]: Analyzing trace with hash 925707, now seen corresponding path program 1 times [2024-12-02 08:32:48,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:48,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969020718] [2024-12-02 08:32:48,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:48,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:48,890 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:48,896 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:48,982 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:32:48,983 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:32:48,983 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:32:48,983 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:32:48,983 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 08:32:48,983 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:48,983 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:32:48,984 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:32:48,984 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration1_Loop [2024-12-02 08:32:48,984 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:32:48,984 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:32:48,998 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:49,009 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:49,014 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:49,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:49,095 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:32:49,095 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 08:32:49,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:49,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:49,099 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:49,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-12-02 08:32:49,101 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:32:49,101 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:49,124 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:32:49,124 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 08:32:49,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-12-02 08:32:49,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:49,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:49,132 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:49,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-12-02 08:32:49,134 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:32:49,134 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:49,154 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:32:49,154 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 08:32:49,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-12-02 08:32:49,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:49,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:49,161 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:49,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-12-02 08:32:49,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:32:49,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:49,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-12-02 08:32:49,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:49,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:49,183 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:49,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-12-02 08:32:49,185 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:32:49,185 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:49,211 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:32:49,211 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=1} Honda state: {ULTIMATE.start_main_~c~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-12-02 08:32:49,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-12-02 08:32:49,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:49,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:49,220 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:49,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-12-02 08:32:49,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:32:49,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:49,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-12-02 08:32:49,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:49,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:49,247 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:49,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-12-02 08:32:49,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:32:49,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:49,283 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 08:32:49,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-12-02 08:32:49,286 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:32:49,286 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:32:49,286 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:32:49,286 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:32:49,286 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 08:32:49,286 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:49,286 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:32:49,286 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:32:49,286 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration1_Loop [2024-12-02 08:32:49,286 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:32:49,286 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:32:49,288 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:49,292 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:49,295 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:49,304 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:49,364 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:32:49,368 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 08:32:49,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:49,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:49,370 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:49,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-12-02 08:32:49,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 08:32:49,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:32:49,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:32:49,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:32:49,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:32:49,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 08:32:49,395 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 08:32:49,402 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 08:32:49,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-12-02 08:32:49,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:49,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:49,413 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:49,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-12-02 08:32:49,415 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 08:32:49,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:32:49,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:32:49,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:32:49,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:32:49,431 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 08:32:49,431 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 08:32:49,438 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 08:32:49,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-12-02 08:32:49,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:49,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:49,448 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:49,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-12-02 08:32:49,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 08:32:49,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:32:49,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 08:32:49,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:32:49,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:32:49,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:32:49,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 08:32:49,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 08:32:49,467 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 08:32:49,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-12-02 08:32:49,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:49,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:49,474 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:49,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-12-02 08:32:49,477 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 08:32:49,488 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:32:49,488 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 08:32:49,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:32:49,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:32:49,489 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:32:49,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 08:32:49,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 08:32:49,493 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 08:32:49,500 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 08:32:49,504 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 08:32:49,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:49,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:49,507 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:49,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-12-02 08:32:49,509 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 08:32:49,509 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 08:32:49,509 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 08:32:49,510 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 211 Supporting invariants [] [2024-12-02 08:32:49,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-12-02 08:32:49,518 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 08:32:49,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-12-02 08:32:49,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:49,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:49,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:49,568 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:32:49,569 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:49,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:49,604 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-12-02 08:32:49,606 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:49,642 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 20 states and 28 transitions. Complement of second has 6 states. [2024-12-02 08:32:49,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 08:32:49,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:49,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2024-12-02 08:32:49,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 2 letters. [2024-12-02 08:32:49,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:49,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 4 letters. Loop has 2 letters. [2024-12-02 08:32:49,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:49,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 4 letters. [2024-12-02 08:32:49,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:49,657 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2024-12-02 08:32:49,659 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 08:32:49,662 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2024-12-02 08:32:49,662 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-12-02 08:32:49,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-12-02 08:32:49,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2024-12-02 08:32:49,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 08:32:49,664 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-12-02 08:32:49,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2024-12-02 08:32:49,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-12-02 08:32:49,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 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) [2024-12-02 08:32:49,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2024-12-02 08:32:49,686 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-12-02 08:32:49,687 INFO L425 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2024-12-02 08:32:49,687 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 08:32:49,687 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2024-12-02 08:32:49,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 08:32:49,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:32:49,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:32:49,688 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-12-02 08:32:49,688 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 08:32:49,688 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~c~0#1 > 0;" "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" [2024-12-02 08:32:49,688 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" [2024-12-02 08:32:49,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:49,689 INFO L85 PathProgramCache]: Analyzing trace with hash 925705, now seen corresponding path program 1 times [2024-12-02 08:32:49,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:49,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386713276] [2024-12-02 08:32:49,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:49,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:49,694 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:49,698 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:49,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:49,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1225, now seen corresponding path program 2 times [2024-12-02 08:32:49,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:49,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451927425] [2024-12-02 08:32:49,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:49,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:49,704 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:49,707 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:49,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:49,708 INFO L85 PathProgramCache]: Analyzing trace with hash 889602769, now seen corresponding path program 1 times [2024-12-02 08:32:49,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:49,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122982586] [2024-12-02 08:32:49,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:49,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:49,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 08:32:49,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122982586] [2024-12-02 08:32:49,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122982586] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:32:49,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369742448] [2024-12-02 08:32:49,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:49,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:32:49,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:49,769 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:32:49,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 08:32:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:49,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:32:49,794 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:49,817 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:32:49,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369742448] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:32:49,831 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:32:49,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-12-02 08:32:49,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592219442] [2024-12-02 08:32:49,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:32:49,869 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:32:49,869 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:32:49,869 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:32:49,869 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:32:49,869 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 08:32:49,869 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:49,869 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:32:49,869 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:32:49,869 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration2_Loop [2024-12-02 08:32:49,869 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:32:49,870 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:32:49,871 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:49,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:49,883 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:49,888 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:49,940 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:32:49,940 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 08:32:49,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:49,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:49,942 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:49,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-12-02 08:32:49,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:32:49,945 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:49,964 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:32:49,964 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 08:32:49,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-12-02 08:32:49,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:49,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:49,972 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:49,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-12-02 08:32:49,974 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:32:49,974 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:49,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2024-12-02 08:32:49,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:49,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:49,994 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:49,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-12-02 08:32:49,996 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:32:49,996 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:50,021 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:32:50,021 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=1} Honda state: {ULTIMATE.start_main_~c~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-12-02 08:32:50,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-12-02 08:32:50,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:50,029 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:50,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-12-02 08:32:50,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:32:50,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:50,050 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:32:50,050 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 08:32:50,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-12-02 08:32:50,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:50,058 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:50,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-12-02 08:32:50,060 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:32:50,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:50,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-12-02 08:32:50,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:50,080 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:50,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-12-02 08:32:50,082 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:32:50,082 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:50,107 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 08:32:50,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-12-02 08:32:50,110 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:32:50,110 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:32:50,110 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:32:50,110 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:32:50,110 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 08:32:50,110 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,110 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:32:50,110 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:32:50,110 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration2_Loop [2024-12-02 08:32:50,111 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:32:50,111 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:32:50,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:50,116 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:50,122 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:50,125 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:50,168 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:32:50,168 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 08:32:50,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:50,170 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:50,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-12-02 08:32:50,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 08:32:50,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:32:50,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:32:50,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:32:50,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:32:50,186 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 08:32:50,186 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 08:32:50,190 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 08:32:50,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-12-02 08:32:50,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:50,198 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:50,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-12-02 08:32:50,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 08:32:50,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:32:50,215 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 08:32:50,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:32:50,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:32:50,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:32:50,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 08:32:50,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 08:32:50,219 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 08:32:50,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-12-02 08:32:50,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:50,227 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:50,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-12-02 08:32:50,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 08:32:50,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:32:50,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:32:50,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:32:50,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:32:50,243 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 08:32:50,243 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 08:32:50,247 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 08:32:50,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-12-02 08:32:50,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:50,258 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:50,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-12-02 08:32:50,260 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 08:32:50,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:32:50,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 08:32:50,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:32:50,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:32:50,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:32:50,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 08:32:50,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 08:32:50,277 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 08:32:50,280 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 08:32:50,280 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 08:32:50,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:50,284 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:50,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-12-02 08:32:50,286 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 08:32:50,286 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 08:32:50,286 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 08:32:50,286 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 211 Supporting invariants [] [2024-12-02 08:32:50,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-12-02 08:32:50,295 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 08:32:50,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:50,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:50,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:50,326 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:32:50,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:50,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:50,330 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-12-02 08:32:50,330 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2024-12-02 08:32:50,339 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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 12 states and 17 transitions. Complement of second has 5 states. [2024-12-02 08:32:50,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 08:32:50,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2024-12-02 08:32:50,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-12-02 08:32:50,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2024-12-02 08:32:50,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:50,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2024-12-02 08:32:50,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:50,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2024-12-02 08:32:50,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:50,341 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2024-12-02 08:32:50,342 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 08:32:50,342 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2024-12-02 08:32:50,343 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-12-02 08:32:50,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-12-02 08:32:50,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2024-12-02 08:32:50,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 08:32:50,343 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-12-02 08:32:50,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2024-12-02 08:32:50,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-12-02 08:32:50,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:50,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2024-12-02 08:32:50,344 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2024-12-02 08:32:50,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 08:32:50,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:32:50,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:32:50,347 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2024-12-02 08:32:50,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:32:50,361 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2024-12-02 08:32:50,362 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2024-12-02 08:32:50,362 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 08:32:50,363 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 17 transitions. [2024-12-02 08:32:50,363 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2024-12-02 08:32:50,363 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-12-02 08:32:50,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2024-12-02 08:32:50,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 08:32:50,363 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2024-12-02 08:32:50,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2024-12-02 08:32:50,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-12-02 08:32:50,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:50,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2024-12-02 08:32:50,365 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-12-02 08:32:50,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:32:50,366 INFO L425 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2024-12-02 08:32:50,366 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 08:32:50,366 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2024-12-02 08:32:50,366 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-12-02 08:32:50,367 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:32:50,367 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:32:50,367 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2024-12-02 08:32:50,367 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 08:32:50,367 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" "assume main_~c~0#1 > 0;" "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" [2024-12-02 08:32:50,367 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" [2024-12-02 08:32:50,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:50,367 INFO L85 PathProgramCache]: Analyzing trace with hash 211614487, now seen corresponding path program 2 times [2024-12-02 08:32:50,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:50,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919200770] [2024-12-02 08:32:50,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:50,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:50,375 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:50,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:50,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:50,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:50,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1225, now seen corresponding path program 3 times [2024-12-02 08:32:50,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:50,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845033243] [2024-12-02 08:32:50,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:50,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:50,384 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:50,386 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:50,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:50,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1498059359, now seen corresponding path program 3 times [2024-12-02 08:32:50,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:50,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027233327] [2024-12-02 08:32:50,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:50,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:50,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 08:32:50,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027233327] [2024-12-02 08:32:50,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027233327] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:32:50,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819943215] [2024-12-02 08:32:50,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:50,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:32:50,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:50,447 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:32:50,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-12-02 08:32:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:50,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:32:50,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:50,495 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:32:50,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819943215] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:32:50,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:32:50,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-12-02 08:32:50,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639050540] [2024-12-02 08:32:50,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:32:50,552 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:32:50,552 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:32:50,552 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:32:50,552 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:32:50,553 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 08:32:50,553 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,553 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:32:50,553 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:32:50,553 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration3_Loop [2024-12-02 08:32:50,553 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:32:50,553 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:32:50,554 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:50,560 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:50,566 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:50,569 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:50,606 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:32:50,606 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 08:32:50,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:50,609 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:50,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-12-02 08:32:50,611 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:32:50,611 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:50,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-12-02 08:32:50,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:50,636 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:50,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-12-02 08:32:50,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:32:50,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:50,669 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:32:50,669 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=1} Honda state: {ULTIMATE.start_main_~c~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=0}] Lambdas: [1, 1, 1] Nus: [0, 0] [2024-12-02 08:32:50,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-12-02 08:32:50,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:50,678 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:50,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-12-02 08:32:50,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:32:50,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:50,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-12-02 08:32:50,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:50,698 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:50,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-12-02 08:32:50,700 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:32:50,700 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:50,725 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 08:32:50,727 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-12-02 08:32:50,727 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:32:50,727 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:32:50,727 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:32:50,727 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:32:50,727 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 08:32:50,727 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,727 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:32:50,727 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:32:50,727 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration3_Loop [2024-12-02 08:32:50,728 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:32:50,728 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:32:50,728 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:50,733 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:50,738 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:50,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:50,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-12-02 08:32:50,796 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:32:50,796 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 08:32:50,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:50,797 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:50,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-12-02 08:32:50,800 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 08:32:50,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:32:50,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 08:32:50,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:32:50,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:32:50,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:32:50,811 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 08:32:50,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 08:32:50,814 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 08:32:50,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-12-02 08:32:50,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:50,820 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:50,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-12-02 08:32:50,822 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 08:32:50,833 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:32:50,833 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 08:32:50,833 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:32:50,833 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:32:50,834 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:32:50,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 08:32:50,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 08:32:50,837 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 08:32:50,839 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 08:32:50,839 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 08:32:50,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:50,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:50,840 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:50,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-12-02 08:32:50,842 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 08:32:50,842 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 08:32:50,842 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 08:32:50,842 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 211 Supporting invariants [] [2024-12-02 08:32:50,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-12-02 08:32:50,848 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 08:32:50,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:50,865 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:50,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:50,876 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:32:50,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:50,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:50,878 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2024-12-02 08:32:50,879 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:50,884 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 14 states and 20 transitions. Complement of second has 5 states. [2024-12-02 08:32:50,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 08:32:50,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:50,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-12-02 08:32:50,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2024-12-02 08:32:50,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:50,886 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 08:32:50,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:50,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:50,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:50,916 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:32:50,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:50,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:50,919 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2024-12-02 08:32:50,920 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:50,926 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 14 states and 20 transitions. Complement of second has 5 states. [2024-12-02 08:32:50,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 08:32:50,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:50,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2024-12-02 08:32:50,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2024-12-02 08:32:50,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:50,928 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 08:32:50,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:50,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:50,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:50,961 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:32:50,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:50,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:50,964 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 1 loop predicates [2024-12-02 08:32:50,964 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:50,971 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 23 transitions. Complement of second has 4 states. [2024-12-02 08:32:50,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 08:32:50,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:50,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-12-02 08:32:50,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2024-12-02 08:32:50,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:50,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2024-12-02 08:32:50,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:50,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2024-12-02 08:32:50,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:50,973 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2024-12-02 08:32:50,974 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-12-02 08:32:50,974 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2024-12-02 08:32:50,974 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-12-02 08:32:50,974 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-12-02 08:32:50,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2024-12-02 08:32:50,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 08:32:50,975 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2024-12-02 08:32:50,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2024-12-02 08:32:50,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2024-12-02 08:32:50,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) 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) [2024-12-02 08:32:50,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2024-12-02 08:32:50,976 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2024-12-02 08:32:50,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 08:32:50,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 08:32:50,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:32:50,976 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:50,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:32:50,996 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2024-12-02 08:32:50,996 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2024-12-02 08:32:50,996 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-12-02 08:32:50,997 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 15 transitions. [2024-12-02 08:32:50,997 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2024-12-02 08:32:50,997 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2024-12-02 08:32:50,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2024-12-02 08:32:50,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 08:32:50,997 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2024-12-02 08:32:50,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2024-12-02 08:32:50,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2024-12-02 08:32:50,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:50,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2024-12-02 08:32:50,998 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-12-02 08:32:50,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:32:50,999 INFO L425 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2024-12-02 08:32:50,999 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 08:32:50,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2024-12-02 08:32:51,000 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2024-12-02 08:32:51,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:32:51,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:32:51,000 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 08:32:51,000 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-12-02 08:32:51,000 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" [2024-12-02 08:32:51,000 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" [2024-12-02 08:32:51,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:51,001 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2024-12-02 08:32:51,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:51,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509420207] [2024-12-02 08:32:51,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:51,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,004 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,005 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:51,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:51,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1177487, now seen corresponding path program 1 times [2024-12-02 08:32:51,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:51,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186637690] [2024-12-02 08:32:51,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:51,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,010 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,014 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:51,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:51,014 INFO L85 PathProgramCache]: Analyzing trace with hash 889604689, now seen corresponding path program 4 times [2024-12-02 08:32:51,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:51,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004077273] [2024-12-02 08:32:51,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:51,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,019 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:51,070 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:32:51,070 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:32:51,070 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:32:51,070 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:32:51,070 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 08:32:51,070 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,070 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:32:51,070 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:32:51,071 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration4_Loop [2024-12-02 08:32:51,071 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:32:51,071 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:32:51,071 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,074 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,081 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,089 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,125 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:32:51,125 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 08:32:51,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:51,126 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:51,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-12-02 08:32:51,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:32:51,129 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:51,147 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 08:32:51,147 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 08:32:51,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-12-02 08:32:51,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:51,157 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:51,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-12-02 08:32:51,160 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:32:51,160 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:51,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-12-02 08:32:51,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:51,182 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:51,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-12-02 08:32:51,184 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:32:51,184 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:51,198 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 08:32:51,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-12-02 08:32:51,203 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:32:51,203 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:32:51,203 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:32:51,203 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:32:51,203 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 08:32:51,203 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,203 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:32:51,204 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:32:51,204 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration4_Loop [2024-12-02 08:32:51,204 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:32:51,204 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:32:51,204 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,211 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,215 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,220 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,253 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:32:51,253 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 08:32:51,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:51,255 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:51,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-12-02 08:32:51,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 08:32:51,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:32:51,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 08:32:51,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:32:51,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:32:51,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:32:51,270 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 08:32:51,270 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 08:32:51,273 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 08:32:51,274 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 08:32:51,274 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 08:32:51,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:51,276 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:51,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-12-02 08:32:51,278 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 08:32:51,278 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 08:32:51,278 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 08:32:51,278 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 201 Supporting invariants [] [2024-12-02 08:32:51,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-12-02 08:32:51,284 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 08:32:51,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:51,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:51,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:51,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:32:51,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:51,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:51,332 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-12-02 08:32:51,332 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2024-12-02 08:32:51,339 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 21 states and 27 transitions. Complement of second has 5 states. [2024-12-02 08:32:51,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 08:32:51,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2024-12-02 08:32:51,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2024-12-02 08:32:51,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2024-12-02 08:32:51,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:51,340 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 08:32:51,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:51,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:51,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:51,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:32:51,359 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:51,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:51,381 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 [2024-12-02 08:32:51,381 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2024-12-02 08:32:51,398 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 25 states and 33 transitions. Complement of second has 7 states. [2024-12-02 08:32:51,399 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 [2024-12-02 08:32:51,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2024-12-02 08:32:51,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2024-12-02 08:32:51,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 4 letters. [2024-12-02 08:32:51,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:51,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 4 letters. [2024-12-02 08:32:51,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:51,400 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 8 letters. [2024-12-02 08:32:51,400 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:51,400 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2024-12-02 08:32:51,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-12-02 08:32:51,401 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 17 states and 22 transitions. [2024-12-02 08:32:51,401 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2024-12-02 08:32:51,401 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2024-12-02 08:32:51,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2024-12-02 08:32:51,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 08:32:51,402 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-12-02 08:32:51,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2024-12-02 08:32:51,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2024-12-02 08:32:51,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:51,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2024-12-02 08:32:51,403 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-12-02 08:32:51,403 INFO L425 stractBuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2024-12-02 08:32:51,403 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-12-02 08:32:51,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2024-12-02 08:32:51,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2024-12-02 08:32:51,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:32:51,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:32:51,404 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2024-12-02 08:32:51,404 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-12-02 08:32:51,404 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" "assume main_~c~0#1 > 0;" [2024-12-02 08:32:51,404 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" "assume main_~c~0#1 > 0;" [2024-12-02 08:32:51,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:51,404 INFO L85 PathProgramCache]: Analyzing trace with hash -2029825905, now seen corresponding path program 5 times [2024-12-02 08:32:51,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:51,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299737984] [2024-12-02 08:32:51,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:51,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,410 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:51,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:51,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1403, now seen corresponding path program 1 times [2024-12-02 08:32:51,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:51,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712449860] [2024-12-02 08:32:51,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:51,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,418 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,420 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:51,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:51,421 INFO L85 PathProgramCache]: Analyzing trace with hash -747541879, now seen corresponding path program 6 times [2024-12-02 08:32:51,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:51,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890057133] [2024-12-02 08:32:51,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:51,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,427 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:51,456 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:32:51,457 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:32:51,457 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:32:51,457 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:32:51,457 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 08:32:51,457 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,457 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:32:51,457 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:32:51,457 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration5_Loop [2024-12-02 08:32:51,457 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:32:51,457 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:32:51,458 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,463 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,467 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,470 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,503 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:32:51,503 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 08:32:51,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:51,505 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:51,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-12-02 08:32:51,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:32:51,507 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:51,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-12-02 08:32:51,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:51,528 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:51,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-12-02 08:32:51,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:32:51,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:51,583 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 08:32:51,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-12-02 08:32:51,585 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:32:51,585 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:32:51,585 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:32:51,585 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:32:51,585 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 08:32:51,586 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,586 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:32:51,586 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:32:51,586 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration5_Loop [2024-12-02 08:32:51,586 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:32:51,586 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:32:51,586 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,589 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,593 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,597 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,625 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:32:51,625 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 08:32:51,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:51,627 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:51,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-12-02 08:32:51,629 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 08:32:51,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:32:51,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:32:51,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:32:51,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:32:51,642 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-12-02 08:32:51,642 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-12-02 08:32:51,646 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 08:32:51,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-12-02 08:32:51,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:51,655 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:51,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-12-02 08:32:51,658 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 08:32:51,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:32:51,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 08:32:51,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:32:51,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:32:51,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:32:51,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 08:32:51,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 08:32:51,672 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 08:32:51,674 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 08:32:51,674 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 08:32:51,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:51,676 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:51,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-12-02 08:32:51,677 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 08:32:51,677 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 08:32:51,678 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 08:32:51,678 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = 1*ULTIMATE.start_main_~c~0#1 Supporting invariants [] [2024-12-02 08:32:51,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-12-02 08:32:51,683 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 08:32:51,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:51,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:51,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:51,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:51,707 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:32:51,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:51,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:51,718 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-12-02 08:32:51,719 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:51,723 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 21 transitions. Complement of second has 3 states. [2024-12-02 08:32:51,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-12-02 08:32:51,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:51,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2024-12-02 08:32:51,724 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 9 letters. Loop has 2 letters. [2024-12-02 08:32:51,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:51,724 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 08:32:51,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:51,745 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:51,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:51,759 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:32:51,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:51,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-12-02 08:32:51,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:51,778 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 [2024-12-02 08:32:51,778 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:51,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-12-02 08:32:51,782 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 21 transitions. Complement of second has 3 states. [2024-12-02 08:32:51,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-12-02 08:32:51,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:51,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2024-12-02 08:32:51,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 9 letters. Loop has 2 letters. [2024-12-02 08:32:51,783 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:51,783 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 08:32:51,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-12-02 08:32:51,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:51,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:51,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:51,817 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:32:51,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:51,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:51,825 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 [2024-12-02 08:32:51,825 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:51,837 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 21 states and 28 transitions. Complement of second has 4 states. [2024-12-02 08:32:51,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 08:32:51,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:51,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-12-02 08:32:51,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 2 letters. [2024-12-02 08:32:51,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:51,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 11 letters. Loop has 2 letters. [2024-12-02 08:32:51,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:51,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 4 letters. [2024-12-02 08:32:51,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:51,839 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 28 transitions. [2024-12-02 08:32:51,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-12-02 08:32:51,839 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 24 transitions. [2024-12-02 08:32:51,839 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2024-12-02 08:32:51,840 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2024-12-02 08:32:51,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2024-12-02 08:32:51,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 08:32:51,840 INFO L218 hiAutomatonCegarLoop]: Abstraction has 18 states and 24 transitions. [2024-12-02 08:32:51,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2024-12-02 08:32:51,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2024-12-02 08:32:51,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:51,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2024-12-02 08:32:51,841 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2024-12-02 08:32:51,841 INFO L425 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2024-12-02 08:32:51,841 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-12-02 08:32:51,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2024-12-02 08:32:51,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-12-02 08:32:51,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:32:51,842 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:32:51,842 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2024-12-02 08:32:51,842 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2024-12-02 08:32:51,842 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" "assume main_~c~0#1 > 0;" [2024-12-02 08:32:51,842 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" [2024-12-02 08:32:51,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:51,842 INFO L85 PathProgramCache]: Analyzing trace with hash -2029825905, now seen corresponding path program 7 times [2024-12-02 08:32:51,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:51,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195578459] [2024-12-02 08:32:51,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:51,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:51,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,847 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:51,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:51,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1348787, now seen corresponding path program 2 times [2024-12-02 08:32:51,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:51,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998053648] [2024-12-02 08:32:51,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:51,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,855 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,857 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:51,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:51,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1128206783, now seen corresponding path program 8 times [2024-12-02 08:32:51,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:51,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148953266] [2024-12-02 08:32:51,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:51,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,864 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:51,870 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:51,917 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:32:51,917 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:32:51,917 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:32:51,917 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:32:51,917 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 08:32:51,917 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,917 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:32:51,917 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:32:51,917 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration6_Loop [2024-12-02 08:32:51,917 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:32:51,917 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:32:51,918 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,924 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,926 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,929 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:51,970 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:32:51,970 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 08:32:51,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:51,971 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:51,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-12-02 08:32:51,974 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:32:51,974 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:51,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-12-02 08:32:51,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:51,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:51,992 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:51,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-12-02 08:32:51,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:32:51,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:52,024 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 08:32:52,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-12-02 08:32:52,026 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:32:52,026 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:32:52,026 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:32:52,026 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:32:52,026 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 08:32:52,026 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:52,026 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:32:52,027 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:32:52,027 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration6_Loop [2024-12-02 08:32:52,027 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:32:52,027 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:32:52,028 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:52,033 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:52,035 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:52,037 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:52,073 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:32:52,073 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 08:32:52,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:52,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:52,075 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:52,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-12-02 08:32:52,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 08:32:52,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:32:52,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 08:32:52,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:32:52,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:32:52,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:32:52,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 08:32:52,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 08:32:52,092 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 08:32:52,094 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 08:32:52,094 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 08:32:52,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:52,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:52,095 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:52,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-12-02 08:32:52,098 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 08:32:52,098 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 08:32:52,098 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 08:32:52,098 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0#1) = -2*ULTIMATE.start_main_~n~0#1 + 221 Supporting invariants [] [2024-12-02 08:32:52,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-12-02 08:32:52,105 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 08:32:52,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:52,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:52,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:52,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:52,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:32:52,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:52,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:52,163 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-12-02 08:32:52,164 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:52,185 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 33 transitions. Complement of second has 7 states. [2024-12-02 08:32:52,185 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 [2024-12-02 08:32:52,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:52,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2024-12-02 08:32:52,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2024-12-02 08:32:52,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:52,186 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 08:32:52,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:52,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:52,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:52,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:32:52,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:52,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:52,244 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2024-12-02 08:32:52,244 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:52,263 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 33 transitions. Complement of second has 7 states. [2024-12-02 08:32:52,263 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 [2024-12-02 08:32:52,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:52,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2024-12-02 08:32:52,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 9 letters. Loop has 4 letters. [2024-12-02 08:32:52,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:52,264 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 08:32:52,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:52,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:52,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:52,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:32:52,301 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:52,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 08:32:52,326 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 3 loop predicates [2024-12-02 08:32:52,327 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:52,342 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 42 states and 53 transitions. Complement of second has 8 states. [2024-12-02 08:32:52,342 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 [2024-12-02 08:32:52,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:52,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2024-12-02 08:32:52,343 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 4 letters. [2024-12-02 08:32:52,343 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:52,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 13 letters. Loop has 4 letters. [2024-12-02 08:32:52,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:52,344 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 8 letters. [2024-12-02 08:32:52,344 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:52,344 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 53 transitions. [2024-12-02 08:32:52,345 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-12-02 08:32:52,346 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 31 states and 40 transitions. [2024-12-02 08:32:52,346 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2024-12-02 08:32:52,346 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2024-12-02 08:32:52,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 40 transitions. [2024-12-02 08:32:52,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 08:32:52,346 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 40 transitions. [2024-12-02 08:32:52,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 40 transitions. [2024-12-02 08:32:52,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2024-12-02 08:32:52,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 25 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:52,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2024-12-02 08:32:52,349 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 35 transitions. [2024-12-02 08:32:52,349 INFO L425 stractBuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2024-12-02 08:32:52,349 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-12-02 08:32:52,349 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2024-12-02 08:32:52,349 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-12-02 08:32:52,349 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:32:52,349 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:32:52,351 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 3, 3, 1, 1] [2024-12-02 08:32:52,351 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 3, 2] [2024-12-02 08:32:52,351 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" "assume main_~c~0#1 > 0;" "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" "assume main_~c~0#1 > 0;" "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" [2024-12-02 08:32:52,351 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" "assume main_~c~0#1 > 0;" "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" [2024-12-02 08:32:52,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:52,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1875018949, now seen corresponding path program 9 times [2024-12-02 08:32:52,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:52,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660232412] [2024-12-02 08:32:52,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:52,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:52,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 08:32:52,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660232412] [2024-12-02 08:32:52,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660232412] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:32:52,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868398796] [2024-12-02 08:32:52,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:52,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:32:52,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:52,406 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:32:52,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-12-02 08:32:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:52,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 08:32:52,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:52,443 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:32:52,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [868398796] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:32:52,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:32:52,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-12-02 08:32:52,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946323330] [2024-12-02 08:32:52,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:32:52,469 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-12-02 08:32:52,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:52,469 INFO L85 PathProgramCache]: Analyzing trace with hash -794028961, now seen corresponding path program 3 times [2024-12-02 08:32:52,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:52,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19051937] [2024-12-02 08:32:52,470 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:52,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:52,475 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:52,478 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:52,562 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:32:52,562 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:32:52,562 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:32:52,562 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:32:52,562 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 08:32:52,562 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:52,562 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:32:52,562 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:32:52,562 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration7_Loop [2024-12-02 08:32:52,562 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:32:52,562 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:32:52,563 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:52,568 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:52,575 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:52,578 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:52,623 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:32:52,623 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 08:32:52,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:52,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:52,625 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:52,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-12-02 08:32:52,628 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 08:32:52,628 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:52,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-12-02 08:32:52,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:52,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:52,647 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:52,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-12-02 08:32:52,649 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 08:32:52,649 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 08:32:52,674 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 08:32:52,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-12-02 08:32:52,677 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 08:32:52,677 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 08:32:52,677 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 08:32:52,677 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 08:32:52,677 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 08:32:52,677 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:52,677 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 08:32:52,677 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 08:32:52,677 INFO L132 ssoRankerPreferences]: Filename of dumped script: McCarthy91_Iteration.c_Iteration7_Loop [2024-12-02 08:32:52,677 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 08:32:52,677 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 08:32:52,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:52,683 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:52,690 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:52,692 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 08:32:52,735 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 08:32:52,735 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 08:32:52,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:52,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:52,737 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:52,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-12-02 08:32:52,739 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 08:32:52,753 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 08:32:52,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 08:32:52,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 08:32:52,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 08:32:52,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 08:32:52,754 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 08:32:52,754 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 08:32:52,757 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 08:32:52,758 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-12-02 08:32:52,759 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 08:32:52,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:32:52,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:52,760 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:32:52,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-12-02 08:32:52,762 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 08:32:52,762 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 08:32:52,762 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 08:32:52,762 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = 1*ULTIMATE.start_main_~c~0#1 Supporting invariants [] [2024-12-02 08:32:52,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2024-12-02 08:32:52,768 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 08:32:52,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:52,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:52,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:52,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 08:32:52,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:52,852 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:32:52,853 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 [2024-12-02 08:32:52,853 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:52,857 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 36 transitions. Complement of second has 3 states. [2024-12-02 08:32:52,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-12-02 08:32:52,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:52,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2024-12-02 08:32:52,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 15 letters. Loop has 10 letters. [2024-12-02 08:32:52,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:52,858 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 08:32:52,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:52,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:52,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:52,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:52,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 08:32:52,894 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:52,938 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:32:52,938 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2024-12-02 08:32:52,938 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:52,941 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 27 states and 36 transitions. Complement of second has 3 states. [2024-12-02 08:32:52,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2024-12-02 08:32:52,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:52,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2024-12-02 08:32:52,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 15 letters. Loop has 10 letters. [2024-12-02 08:32:52,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:52,942 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 08:32:52,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:52,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:52,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:52,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 08:32:52,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:53,037 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:32:53,037 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 5 loop predicates [2024-12-02 08:32:53,037 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:53,054 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 61 transitions. Complement of second has 4 states. [2024-12-02 08:32:53,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 08:32:53,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:53,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-12-02 08:32:53,055 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 15 letters. Loop has 10 letters. [2024-12-02 08:32:53,055 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:53,055 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 08:32:53,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:53,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:53,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:53,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:53,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 08:32:53,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:53,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-12-02 08:32:53,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-12-02 08:32:53,163 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:32:53,164 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2024-12-02 08:32:53,164 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:53,178 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 61 transitions. Complement of second has 4 states. [2024-12-02 08:32:53,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2024-12-02 08:32:53,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:53,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2024-12-02 08:32:53,179 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 15 letters. Loop has 10 letters. [2024-12-02 08:32:53,180 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:53,180 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 08:32:53,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:53,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:32:53,193 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:53,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 08:32:53,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:53,264 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 08:32:53,265 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2024-12-02 08:32:53,266 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:53,349 WARN L278 uchiComplementFKVNwa]: big8 [2024-12-02 08:32:53,350 WARN L278 uchiComplementFKVNwa]: big8 [2024-12-02 08:32:53,357 WARN L278 uchiComplementFKVNwa]: big8 [2024-12-02 08:32:53,357 WARN L278 uchiComplementFKVNwa]: big8 [2024-12-02 08:32:53,368 WARN L278 uchiComplementFKVNwa]: big8 [2024-12-02 08:32:53,368 WARN L278 uchiComplementFKVNwa]: big8 [2024-12-02 08:32:53,374 WARN L278 uchiComplementFKVNwa]: big8 [2024-12-02 08:32:53,374 WARN L278 uchiComplementFKVNwa]: big8 [2024-12-02 08:32:53,388 WARN L278 uchiComplementFKVNwa]: big8 [2024-12-02 08:32:53,388 WARN L278 uchiComplementFKVNwa]: big8 [2024-12-02 08:32:53,388 WARN L278 uchiComplementFKVNwa]: big8 [2024-12-02 08:32:53,388 WARN L278 uchiComplementFKVNwa]: big8 [2024-12-02 08:32:53,388 WARN L278 uchiComplementFKVNwa]: big8 [2024-12-02 08:32:53,389 WARN L278 uchiComplementFKVNwa]: big8 [2024-12-02 08:32:53,391 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 719 states and 1229 transitions. Complement of second has 174 states 11 powerset states163 rank states. The highest rank that occured is 7 [2024-12-02 08:32:53,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2024-12-02 08:32:53,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:53,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 31 transitions. [2024-12-02 08:32:53,392 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 31 transitions. Stem has 15 letters. Loop has 10 letters. [2024-12-02 08:32:53,393 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:53,393 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 31 transitions. Stem has 25 letters. Loop has 10 letters. [2024-12-02 08:32:53,395 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:53,395 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 31 transitions. Stem has 15 letters. Loop has 20 letters. [2024-12-02 08:32:53,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 08:32:53,396 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 719 states and 1229 transitions. [2024-12-02 08:32:53,408 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2024-12-02 08:32:53,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 719 states to 450 states and 747 transitions. [2024-12-02 08:32:53,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2024-12-02 08:32:53,413 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 119 [2024-12-02 08:32:53,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 450 states and 747 transitions. [2024-12-02 08:32:53,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 08:32:53,414 INFO L218 hiAutomatonCegarLoop]: Abstraction has 450 states and 747 transitions. [2024-12-02 08:32:53,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states and 747 transitions. [2024-12-02 08:32:53,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 157. [2024-12-02 08:32:53,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 157 states have (on average 1.78343949044586) internal successors, (280), 156 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:53,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 280 transitions. [2024-12-02 08:32:53,429 INFO L240 hiAutomatonCegarLoop]: Abstraction has 157 states and 280 transitions. [2024-12-02 08:32:53,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 08:32:53,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 08:32:53,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:32:53,430 INFO L87 Difference]: Start difference. First operand 157 states and 280 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:53,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:32:53,452 INFO L93 Difference]: Finished difference Result 234 states and 366 transitions. [2024-12-02 08:32:53,452 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 234 states and 366 transitions. [2024-12-02 08:32:53,454 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 58 [2024-12-02 08:32:53,456 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 234 states to 201 states and 312 transitions. [2024-12-02 08:32:53,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2024-12-02 08:32:53,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-12-02 08:32:53,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 201 states and 312 transitions. [2024-12-02 08:32:53,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 08:32:53,457 INFO L218 hiAutomatonCegarLoop]: Abstraction has 201 states and 312 transitions. [2024-12-02 08:32:53,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states and 312 transitions. [2024-12-02 08:32:53,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 167. [2024-12-02 08:32:53,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 167 states have (on average 1.6107784431137724) internal successors, (269), 166 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:53,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 269 transitions. [2024-12-02 08:32:53,464 INFO L240 hiAutomatonCegarLoop]: Abstraction has 167 states and 269 transitions. [2024-12-02 08:32:53,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:32:53,465 INFO L425 stractBuchiCegarLoop]: Abstraction has 167 states and 269 transitions. [2024-12-02 08:32:53,465 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-12-02 08:32:53,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 269 transitions. [2024-12-02 08:32:53,466 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2024-12-02 08:32:53,467 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:32:53,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:32:53,467 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2024-12-02 08:32:53,467 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 3, 3] [2024-12-02 08:32:53,467 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_~c~0#1, main_~n~0#1;havoc main_~c~0#1;havoc main_~n~0#1;main_~c~0#1 := 1;havoc main_#t~nondet0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;" "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" "assume main_~c~0#1 > 0;" [2024-12-02 08:32:53,467 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" "assume main_~c~0#1 > 0;" "assume main_~n~0#1 > 100;main_~n~0#1 := main_~n~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1;" "assume main_~c~0#1 > 0;" "assume !(main_~n~0#1 > 100);main_~n~0#1 := 11 + main_~n~0#1;main_~c~0#1 := 1 + main_~c~0#1;" "assume main_~c~0#1 > 0;" [2024-12-02 08:32:53,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:53,468 INFO L85 PathProgramCache]: Analyzing trace with hash -2029825905, now seen corresponding path program 10 times [2024-12-02 08:32:53,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:53,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071927221] [2024-12-02 08:32:53,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:53,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:53,471 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:32:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:32:53,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:32:53,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:32:53,475 INFO L85 PathProgramCache]: Analyzing trace with hash 632941463, now seen corresponding path program 4 times [2024-12-02 08:32:53,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:32:53,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477389883] [2024-12-02 08:32:53,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:53,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:32:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:53,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 08:32:53,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477389883] [2024-12-02 08:32:53,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477389883] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:32:53,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131075120] [2024-12-02 08:32:53,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:32:53,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:32:53,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:32:53,507 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:32:53,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-12-02 08:32:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:32:53,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:32:53,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:32:53,539 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:32:53,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131075120] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:32:53,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:32:53,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-12-02 08:32:53,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112386593] [2024-12-02 08:32:53,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:32:53,552 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 08:32:53,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 08:32:53,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:32:53,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:32:53,552 INFO L87 Difference]: Start difference. First operand 167 states and 269 transitions. cyclomatic complexity: 115 Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 08:32:53,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:32:53,562 INFO L93 Difference]: Finished difference Result 148 states and 222 transitions. [2024-12-02 08:32:53,563 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 222 transitions. [2024-12-02 08:32:53,564 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 08:32:53,564 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 0 states and 0 transitions. [2024-12-02 08:32:53,564 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-12-02 08:32:53,564 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-12-02 08:32:53,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-12-02 08:32:53,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 08:32:53,564 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 08:32:53,564 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 08:32:53,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:32:53,565 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 08:32:53,565 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-12-02 08:32:53,565 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-12-02 08:32:53,565 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 08:32:53,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-12-02 08:32:53,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 08:32:53 BoogieIcfgContainer [2024-12-02 08:32:53,574 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 08:32:53,574 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:32:53,574 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:32:53,575 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:32:53,575 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:32:48" (3/4) ... [2024-12-02 08:32:53,577 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 08:32:53,578 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 08:32:53,579 INFO L158 Benchmark]: Toolchain (without parser) took 5250.40ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 93.1MB in the beginning and 116.4MB in the end (delta: -23.3MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2024-12-02 08:32:53,579 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 72.3MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:32:53,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 172.71ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 83.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:32:53,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.25ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 82.0MB in the end (delta: 976.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:32:53,580 INFO L158 Benchmark]: Boogie Preprocessor took 18.06ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 81.2MB in the end (delta: 843.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:32:53,580 INFO L158 Benchmark]: RCFGBuilder took 160.80ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 72.9MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:32:53,580 INFO L158 Benchmark]: BuchiAutomizer took 4870.96ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 72.9MB in the beginning and 116.4MB in the end (delta: -43.5MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2024-12-02 08:32:53,580 INFO L158 Benchmark]: Witness Printer took 3.83ms. Allocated memory is still 192.9MB. Free memory was 116.4MB in the beginning and 116.4MB in the end (delta: 36.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:32:53,582 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 72.3MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 172.71ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 83.0MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.25ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 82.0MB in the end (delta: 976.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.06ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 81.2MB in the end (delta: 843.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 160.80ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 72.9MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4870.96ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 72.9MB in the beginning and 116.4MB in the end (delta: -43.5MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * Witness Printer took 3.83ms. Allocated memory is still 192.9MB. Free memory was 116.4MB in the beginning and 116.4MB in the end (delta: 36.1kB). 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 11 terminating modules (4 trivial, 3 deterministic, 4 nondeterministic). One deterministic module has affine ranking function (211 + ((long) -2 * n)) and consists of 4 locations. One deterministic module has affine ranking function (211 + ((long) -2 * n)) and consists of 3 locations. One deterministic module has affine ranking function (((long) -2 * n) + 201) and consists of 4 locations. One nondeterministic module has affine ranking function (211 + ((long) -2 * n)) and consists of 3 locations. One nondeterministic module has affine ranking function c and consists of 3 locations. One nondeterministic module has affine ranking function (((long) -2 * n) + 221) and consists of 4 locations. One nondeterministic module has affine ranking function c and consists of 8 locations. 4 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 9 iterations. TraceHistogramMax:7. Analysis of lassos took 3.1s. Construction of modules took 0.1s. Büchi inclusion checks took 1.3s. Highest rank in rank-based complementation 7. Minimization of det autom 1. Minimization of nondet autom 10. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 346 StatesRemovedByMinimization, 8 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 [2, 1, 3, 0, 1]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 20/24 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 98 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 134 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 156 IncrementalHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 102 mSDtfsCounter, 156 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT4 conc0 concLT2 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax164 hnf100 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp97 dnf100 smp100 tf112 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-12-02 08:32:53,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2024-12-02 08:32:53,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-12-02 08:32:53,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-12-02 08:32:54,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 08:32:54,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b21888c-c895-458c-9a9b-a05107e1fa14/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE