./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/AlternKonv.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/AlternKonv.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd --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 9816d5cc9e8c1fba9291af90498afaa319416e5c56fa3cf3ce8da9d63d3e9939 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:12:38,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:12:38,332 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 13:12:38,338 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:12:38,339 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:12:38,378 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:12:38,378 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:12:38,379 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:12:38,379 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:12:38,379 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:12:38,381 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:12:38,381 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:12:38,381 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:12:38,382 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 13:12:38,383 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 13:12:38,383 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 13:12:38,383 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 13:12:38,384 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 13:12:38,384 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 13:12:38,384 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:12:38,384 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 13:12:38,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:12:38,384 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:12:38,384 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 13:12:38,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 13:12:38,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 13:12:38,385 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:12:38,385 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:12:38,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:12:38,385 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 13:12:38,385 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:12:38,386 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:12:38,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:12:38,386 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:12:38,386 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:12:38,387 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 13:12:38,387 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_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd 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 -> 9816d5cc9e8c1fba9291af90498afaa319416e5c56fa3cf3ce8da9d63d3e9939 [2024-11-13 13:12:38,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:12:38,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:12:38,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:12:38,730 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:12:38,730 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:12:38,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-restricted-15/AlternKonv.c Unable to find full path for "g++" [2024-11-13 13:12:40,626 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:12:40,909 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:12:40,909 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/sv-benchmarks/c/termination-restricted-15/AlternKonv.c [2024-11-13 13:12:40,928 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/data/1d6034c28/6c2eb43aae364f8c98fddaf1af1f7a91/FLAGf0607d00d [2024-11-13 13:12:40,954 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/data/1d6034c28/6c2eb43aae364f8c98fddaf1af1f7a91 [2024-11-13 13:12:40,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:12:40,959 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:12:40,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:12:40,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:12:40,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:12:40,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:12:40" (1/1) ... [2024-11-13 13:12:40,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50b93364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:40, skipping insertion in model container [2024-11-13 13:12:40,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:12:40" (1/1) ... [2024-11-13 13:12:40,990 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:12:41,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:12:41,166 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:12:41,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:12:41,194 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:12:41,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41 WrapperNode [2024-11-13 13:12:41,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:12:41,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:12:41,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:12:41,196 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:12:41,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,207 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,223 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-11-13 13:12:41,225 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:12:41,225 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:12:41,226 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:12:41,226 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:12:41,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,235 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,242 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 13:12:41,242 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,242 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,251 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,252 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,254 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:12:41,255 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:12:41,255 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:12:41,256 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:12:41,257 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:12:41,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:41,287 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:12:41,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 13:12:41,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:12:41,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:12:41,389 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:12:41,391 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:12:41,457 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-13 13:12:41,457 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:12:41,469 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:12:41,469 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:12:41,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:12:41 BoogieIcfgContainer [2024-11-13 13:12:41,469 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:12:41,472 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 13:12:41,472 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 13:12:41,477 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 13:12:41,478 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 13:12:41,478 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 01:12:40" (1/3) ... [2024-11-13 13:12:41,479 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12a86c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 01:12:41, skipping insertion in model container [2024-11-13 13:12:41,479 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 13:12:41,479 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (2/3) ... [2024-11-13 13:12:41,480 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12a86c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 01:12:41, skipping insertion in model container [2024-11-13 13:12:41,480 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 13:12:41,480 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:12:41" (3/3) ... [2024-11-13 13:12:41,481 INFO L333 chiAutomizerObserver]: Analyzing ICFG AlternKonv.c [2024-11-13 13:12:41,541 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 13:12:41,541 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 13:12:41,541 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 13:12:41,541 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 13:12:41,542 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 13:12:41,542 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 13:12:41,542 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 13:12:41,542 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 13:12:41,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:41,569 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 13:12:41,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:12:41,570 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:12:41,578 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 13:12:41,578 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 13:12:41,578 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 13:12:41,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:41,581 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 13:12:41,582 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:12:41,582 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:12:41,582 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 13:12:41,582 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 13:12:41,590 INFO L745 eck$LassoCheckResult]: Stem: 8#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 6#L18-2true [2024-11-13 13:12:41,592 INFO L747 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(0 != main_~i~0#1); 7#L10true assume !(main_~i~0#1 < 0);main_~i~0#1 := main_~i~0#1 - 2; 3#L18true assume main_~i~0#1 > 0;main_~i~0#1 := -1 * main_~i~0#1; 6#L18-2true [2024-11-13 13:12:41,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:41,599 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-13 13:12:41,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:41,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350732506] [2024-11-13 13:12:41,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:41,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:41,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:41,694 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:12:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:41,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:12:41,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:41,718 INFO L85 PathProgramCache]: Analyzing trace with hash 40236, now seen corresponding path program 1 times [2024-11-13 13:12:41,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:41,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204875724] [2024-11-13 13:12:41,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:41,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:41,738 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:12:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:41,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:12:41,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:41,752 INFO L85 PathProgramCache]: Analyzing trace with hash 28699178, now seen corresponding path program 1 times [2024-11-13 13:12:41,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:41,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089730042] [2024-11-13 13:12:41,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:41,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:41,768 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:12:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:41,780 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:12:41,892 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:12:41,892 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:12:41,893 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:12:41,893 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:12:41,893 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 13:12:41,893 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:12:41,893 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:12:41,893 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:12:41,893 INFO L132 ssoRankerPreferences]: Filename of dumped script: AlternKonv.c_Iteration1_Loop [2024-11-13 13:12:41,894 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:12:41,894 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:12:41,906 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:12:41,920 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:12:41,925 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:12:42,010 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:12:42,010 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 13:12:42,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:12:42,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:42,016 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:12:42,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-13 13:12:42,019 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:12:42,019 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:12:42,046 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:12:42,047 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: [] [2024-11-13 13:12:42,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-13 13:12:42,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:12:42,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:42,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:12:42,064 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:12:42,065 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:12:42,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-13 13:12:42,085 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-13 13:12:42,086 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: [] [2024-11-13 13:12:42,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-13 13:12:42,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:12:42,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:42,101 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:12:42,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-13 13:12:42,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 13:12:42,103 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:12:42,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-13 13:12:42,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:12:42,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:42,133 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:12:42,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-13 13:12:42,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 13:12:42,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 13:12:42,225 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 13:12:42,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-13 13:12:42,228 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 13:12:42,228 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 13:12:42,228 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 13:12:42,228 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 13:12:42,228 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 13:12:42,228 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:12:42,228 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 13:12:42,229 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 13:12:42,229 INFO L132 ssoRankerPreferences]: Filename of dumped script: AlternKonv.c_Iteration1_Loop [2024-11-13 13:12:42,229 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 13:12:42,229 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 13:12:42,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:12:42,236 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:12:42,243 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 13:12:42,330 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 13:12:42,335 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 13:12:42,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:12:42,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:42,339 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:12:42,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-13 13:12:42,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:12:42,361 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:12:42,361 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:12:42,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:12:42,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:12:42,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 13:12:42,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 13:12:42,383 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:12:42,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-13 13:12:42,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:12:42,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:42,404 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:12:42,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-13 13:12:42,408 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:12:42,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:12:42,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:12:42,424 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:12:42,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:12:42,431 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2024-11-13 13:12:42,432 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2024-11-13 13:12:42,440 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-13 13:12:42,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-13 13:12:42,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:12:42,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:42,458 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:12:42,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-13 13:12:42,461 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-13 13:12:42,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 13:12:42,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 13:12:42,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 13:12:42,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 13:12:42,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 13:12:42,475 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 13:12:42,475 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 13:12:42,479 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 13:12:42,482 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-13 13:12:42,486 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-13 13:12:42,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 13:12:42,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:42,492 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 13:12:42,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-13 13:12:42,494 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 13:12:42,494 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 13:12:42,494 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 13:12:42,495 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2024-11-13 13:12:42,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-13 13:12:42,515 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 13:12:42,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:42,562 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:12:42,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:12:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:42,580 WARN L253 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:12:42,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:12:42,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:42,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-13 13:12:42,673 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2024-11-13 13:12:42,676 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:42,737 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 24 states and 38 transitions. Complement of second has 6 states. [2024-11-13 13:12:42,739 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 [2024-11-13 13:12:42,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:42,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2024-11-13 13:12:42,754 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 3 letters. [2024-11-13 13:12:42,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:12:42,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-13 13:12:42,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:12:42,756 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-13 13:12:42,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 13:12:42,757 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 38 transitions. [2024-11-13 13:12:42,762 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 13:12:42,765 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 15 states and 22 transitions. [2024-11-13 13:12:42,766 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2024-11-13 13:12:42,767 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2024-11-13 13:12:42,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 22 transitions. [2024-11-13 13:12:42,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:12:42,768 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 22 transitions. [2024-11-13 13:12:42,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 22 transitions. [2024-11-13 13:12:42,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2024-11-13 13:12:42,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 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) [2024-11-13 13:12:42,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 21 transitions. [2024-11-13 13:12:42,794 INFO L240 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2024-11-13 13:12:42,794 INFO L424 stractBuchiCegarLoop]: Abstraction has 14 states and 21 transitions. [2024-11-13 13:12:42,794 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 13:12:42,795 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 21 transitions. [2024-11-13 13:12:42,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 13:12:42,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:12:42,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:12:42,797 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-13 13:12:42,797 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 13:12:42,798 INFO L745 eck$LassoCheckResult]: Stem: 84#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 85#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 86#L18-2 assume !!(0 != main_~i~0#1); 81#L10 assume main_~i~0#1 < 0;main_~i~0#1 := 2 + main_~i~0#1; 83#L12 [2024-11-13 13:12:42,798 INFO L747 eck$LassoCheckResult]: Loop: 83#L12 assume !(main_~i~0#1 < 0); 75#L18-2 assume !!(0 != main_~i~0#1); 87#L10 assume main_~i~0#1 < 0;main_~i~0#1 := 2 + main_~i~0#1; 83#L12 [2024-11-13 13:12:42,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:42,800 INFO L85 PathProgramCache]: Analyzing trace with hash 925766, now seen corresponding path program 1 times [2024-11-13 13:12:42,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:42,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205364579] [2024-11-13 13:12:42,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:42,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:42,811 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:12:42,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:42,816 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:12:42,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:42,817 INFO L85 PathProgramCache]: Analyzing trace with hash 52217, now seen corresponding path program 1 times [2024-11-13 13:12:42,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:42,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811952730] [2024-11-13 13:12:42,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:42,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:42,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:42,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:42,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:42,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811952730] [2024-11-13 13:12:42,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811952730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:12:42,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:12:42,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 13:12:42,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251127466] [2024-11-13 13:12:42,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:12:42,889 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-13 13:12:42,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:42,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:12:42,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:12:42,893 INFO L87 Difference]: Start difference. First operand 14 states and 21 transitions. cyclomatic complexity: 9 Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:42,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:42,926 INFO L93 Difference]: Finished difference Result 16 states and 23 transitions. [2024-11-13 13:12:42,926 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2024-11-13 13:12:42,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-13 13:12:42,927 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 23 transitions. [2024-11-13 13:12:42,927 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2024-11-13 13:12:42,927 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-13 13:12:42,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 23 transitions. [2024-11-13 13:12:42,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:12:42,928 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 23 transitions. [2024-11-13 13:12:42,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 23 transitions. [2024-11-13 13:12:42,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-13 13:12:42,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.4375) internal successors, (23), 15 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:42,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 23 transitions. [2024-11-13 13:12:42,931 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 23 transitions. [2024-11-13 13:12:42,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:12:42,932 INFO L424 stractBuchiCegarLoop]: Abstraction has 16 states and 23 transitions. [2024-11-13 13:12:42,932 INFO L331 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-13 13:12:42,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 23 transitions. [2024-11-13 13:12:42,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2024-11-13 13:12:42,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:12:42,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:12:42,933 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-11-13 13:12:42,933 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-13 13:12:42,934 INFO L745 eck$LassoCheckResult]: Stem: 122#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 123#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 124#L18-2 assume !!(0 != main_~i~0#1); 120#L10 assume main_~i~0#1 < 0;main_~i~0#1 := 2 + main_~i~0#1; 121#L12 [2024-11-13 13:12:42,934 INFO L747 eck$LassoCheckResult]: Loop: 121#L12 assume main_~i~0#1 < 0; 116#L13 assume !(main_~i~0#1 <= -2147483648);main_~i~0#1 := -1 * main_~i~0#1; 111#L18-2 assume !!(0 != main_~i~0#1); 125#L10 assume main_~i~0#1 < 0;main_~i~0#1 := 2 + main_~i~0#1; 121#L12 [2024-11-13 13:12:42,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:42,934 INFO L85 PathProgramCache]: Analyzing trace with hash 925766, now seen corresponding path program 2 times [2024-11-13 13:12:42,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:42,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301065100] [2024-11-13 13:12:42,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:42,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:42,944 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:12:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:42,951 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:12:42,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:42,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1420681, now seen corresponding path program 1 times [2024-11-13 13:12:42,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:42,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664603899] [2024-11-13 13:12:42,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:42,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:43,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:43,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:43,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664603899] [2024-11-13 13:12:43,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664603899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:12:43,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:12:43,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:12:43,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893313692] [2024-11-13 13:12:43,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:12:43,016 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-13 13:12:43,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:43,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:12:43,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:12:43,017 INFO L87 Difference]: Start difference. First operand 16 states and 23 transitions. cyclomatic complexity: 9 Second operand has 4 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) [2024-11-13 13:12:43,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:43,067 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2024-11-13 13:12:43,067 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 28 transitions. [2024-11-13 13:12:43,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2024-11-13 13:12:43,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 21 states and 27 transitions. [2024-11-13 13:12:43,069 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2024-11-13 13:12:43,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2024-11-13 13:12:43,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 27 transitions. [2024-11-13 13:12:43,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:12:43,069 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21 states and 27 transitions. [2024-11-13 13:12:43,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 27 transitions. [2024-11-13 13:12:43,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2024-11-13 13:12:43,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 14 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) [2024-11-13 13:12:43,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2024-11-13 13:12:43,073 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2024-11-13 13:12:43,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:12:43,075 INFO L424 stractBuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2024-11-13 13:12:43,075 INFO L331 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-13 13:12:43,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2024-11-13 13:12:43,076 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2024-11-13 13:12:43,076 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:12:43,076 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:12:43,076 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 13:12:43,076 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2024-11-13 13:12:43,076 INFO L745 eck$LassoCheckResult]: Stem: 165#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 166#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 167#L18-2 assume !!(0 != main_~i~0#1); 162#L10 [2024-11-13 13:12:43,076 INFO L747 eck$LassoCheckResult]: Loop: 162#L10 assume main_~i~0#1 < 0;main_~i~0#1 := 2 + main_~i~0#1; 164#L12 assume !(main_~i~0#1 < 0); 161#L18-2 assume !!(0 != main_~i~0#1); 168#L10 assume !(main_~i~0#1 < 0);main_~i~0#1 := main_~i~0#1 - 2; 155#L18 assume main_~i~0#1 > 0;main_~i~0#1 := -1 * main_~i~0#1; 156#L18-2 assume !!(0 != main_~i~0#1); 162#L10 [2024-11-13 13:12:43,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:43,077 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2024-11-13 13:12:43,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:43,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874336249] [2024-11-13 13:12:43,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:43,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:43,085 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:12:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:43,087 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:12:43,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:43,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1281247432, now seen corresponding path program 1 times [2024-11-13 13:12:43,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:43,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614879224] [2024-11-13 13:12:43,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:43,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:43,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:43,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:43,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614879224] [2024-11-13 13:12:43,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614879224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:12:43,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:12:43,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:12:43,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024701765] [2024-11-13 13:12:43,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:12:43,164 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-11-13 13:12:43,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:43,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:12:43,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:12:43,165 INFO L87 Difference]: Start difference. First operand 15 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 1.5) 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) [2024-11-13 13:12:43,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:43,213 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2024-11-13 13:12:43,213 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 33 transitions. [2024-11-13 13:12:43,214 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-11-13 13:12:43,214 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 25 states and 31 transitions. [2024-11-13 13:12:43,214 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2024-11-13 13:12:43,214 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2024-11-13 13:12:43,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 31 transitions. [2024-11-13 13:12:43,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 13:12:43,215 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 31 transitions. [2024-11-13 13:12:43,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 31 transitions. [2024-11-13 13:12:43,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2024-11-13 13:12:43,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:43,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2024-11-13 13:12:43,218 INFO L240 hiAutomatonCegarLoop]: Abstraction has 17 states and 23 transitions. [2024-11-13 13:12:43,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:12:43,219 INFO L424 stractBuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2024-11-13 13:12:43,219 INFO L331 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-13 13:12:43,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2024-11-13 13:12:43,220 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-13 13:12:43,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 13:12:43,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 13:12:43,221 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 13:12:43,221 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2024-11-13 13:12:43,221 INFO L745 eck$LassoCheckResult]: Stem: 210#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 211#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;havoc main_#t~nondet0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 212#L18-2 assume !!(0 != main_~i~0#1); 208#L10 [2024-11-13 13:12:43,221 INFO L747 eck$LassoCheckResult]: Loop: 208#L10 assume main_~i~0#1 < 0;main_~i~0#1 := 2 + main_~i~0#1; 213#L12 assume !(main_~i~0#1 < 0); 214#L18-2 assume !!(0 != main_~i~0#1); 209#L10 assume !(main_~i~0#1 < 0);main_~i~0#1 := main_~i~0#1 - 2; 204#L18 assume !(main_~i~0#1 > 0); 205#L18-2 assume !!(0 != main_~i~0#1); 208#L10 [2024-11-13 13:12:43,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:43,221 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 2 times [2024-11-13 13:12:43,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:43,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704017244] [2024-11-13 13:12:43,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:43,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:43,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:12:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:43,227 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:12:43,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:43,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1281247494, now seen corresponding path program 1 times [2024-11-13 13:12:43,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:43,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80317853] [2024-11-13 13:12:43,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:43,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:43,233 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:12:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:43,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:12:43,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:43,237 INFO L85 PathProgramCache]: Analyzing trace with hash -327014100, now seen corresponding path program 1 times [2024-11-13 13:12:43,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:43,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144156838] [2024-11-13 13:12:43,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:43,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:43,247 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:12:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:43,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:12:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:43,349 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:12:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:12:43,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 01:12:43 BoogieIcfgContainer [2024-11-13 13:12:43,378 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 13:12:43,379 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:12:43,379 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:12:43,379 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:12:43,382 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:12:41" (3/4) ... [2024-11-13 13:12:43,384 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-13 13:12:43,422 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:12:43,422 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:12:43,425 INFO L158 Benchmark]: Toolchain (without parser) took 2464.08ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 63.6MB in the end (delta: 29.5MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2024-11-13 13:12:43,428 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:12:43,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.55ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 83.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:12:43,428 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.91ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 82.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:12:43,429 INFO L158 Benchmark]: Boogie Preprocessor took 29.25ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.3MB in the end (delta: 814.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:12:43,429 INFO L158 Benchmark]: RCFGBuilder took 214.22ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 72.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:12:43,429 INFO L158 Benchmark]: BuchiAutomizer took 1906.47ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 65.3MB in the end (delta: 7.3MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-11-13 13:12:43,429 INFO L158 Benchmark]: Witness Printer took 43.41ms. Allocated memory is still 117.4MB. Free memory was 65.3MB in the beginning and 63.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:12:43,432 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.55ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 83.4MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.91ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 82.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.25ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.3MB in the end (delta: 814.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 214.22ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 72.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1906.47ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 65.3MB in the end (delta: 7.3MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Witness Printer took 43.41ms. Allocated memory is still 117.4MB. Free memory was 65.3MB in the beginning and 63.6MB in the end (delta: 1.7MB). 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 4 terminating modules (3 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 17 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 28 mSDtfsCounter, 68 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax200 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i != 0 VAL [i=-1] Loop: [L10] COND TRUE i < 0 [L11] i = i+2 [L12] COND FALSE !(i < 0) [L9] COND TRUE i != 0 [L10] COND FALSE !(i < 0) [L17] i = i-2 [L18] COND FALSE !(i > 0) [L9] COND TRUE i != 0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i != 0 VAL [i=-1] Loop: [L10] COND TRUE i < 0 [L11] i = i+2 [L12] COND FALSE !(i < 0) [L9] COND TRUE i != 0 [L10] COND FALSE !(i < 0) [L17] i = i-2 [L18] COND FALSE !(i > 0) [L9] COND TRUE i != 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 13:12:43,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8b78877-61b3-4333-8f7a-2c05d8cb32a7/bin/uautomizer-verify-qhAvR1uOyd/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)