./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-nla/cohencu1-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/cohencu1-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya --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 32bit --witnessprinter.graph.data.programhash ca80e9b36e5fc58b8f30c1bb1c05df2fc99c88b9aad13b3e482ed10946a6c2f8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:07:19,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:07:19,153 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-29 03:07:19,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:07:19,159 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:07:19,186 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:07:19,187 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:07:19,187 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:07:19,188 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:07:19,189 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:07:19,190 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:07:19,190 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:07:19,191 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:07:19,192 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 03:07:19,192 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 03:07:19,193 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 03:07:19,193 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 03:07:19,194 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 03:07:19,194 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 03:07:19,195 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:07:19,196 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 03:07:19,200 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:07:19,200 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:07:19,201 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:07:19,201 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:07:19,202 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 03:07:19,202 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 03:07:19,203 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 03:07:19,203 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:07:19,203 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:07:19,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:07:19,204 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 03:07:19,204 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:07:19,205 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:07:19,205 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:07:19,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:07:19,206 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:07:19,206 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 03:07:19,206 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca80e9b36e5fc58b8f30c1bb1c05df2fc99c88b9aad13b3e482ed10946a6c2f8 [2023-11-29 03:07:19,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:07:19,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:07:19,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:07:19,496 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:07:19,497 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:07:19,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/termination-nla/cohencu1-both-nt.c [2023-11-29 03:07:22,744 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:07:22,935 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:07:22,936 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/sv-benchmarks/c/termination-nla/cohencu1-both-nt.c [2023-11-29 03:07:22,944 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/data/142afd806/e44211ba07d841b4a22c4452ee164945/FLAG65bfd59cc [2023-11-29 03:07:22,961 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/data/142afd806/e44211ba07d841b4a22c4452ee164945 [2023-11-29 03:07:22,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:07:22,966 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:07:22,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:07:22,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:07:22,974 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:07:22,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:07:22" (1/1) ... [2023-11-29 03:07:22,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ac13a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:22, skipping insertion in model container [2023-11-29 03:07:22,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:07:22" (1/1) ... [2023-11-29 03:07:22,996 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:07:23,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:07:23,135 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:07:23,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:07:23,160 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:07:23,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:23 WrapperNode [2023-11-29 03:07:23,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:07:23,162 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:07:23,162 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:07:23,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:07:23,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:23" (1/1) ... [2023-11-29 03:07:23,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:23" (1/1) ... [2023-11-29 03:07:23,188 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2023-11-29 03:07:23,189 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:07:23,190 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:07:23,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:07:23,190 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:07:23,200 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:23" (1/1) ... [2023-11-29 03:07:23,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:23" (1/1) ... [2023-11-29 03:07:23,201 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:23" (1/1) ... [2023-11-29 03:07:23,207 INFO L175 MemorySlicer]: No memory access in input program. [2023-11-29 03:07:23,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:23" (1/1) ... [2023-11-29 03:07:23,207 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:23" (1/1) ... [2023-11-29 03:07:23,209 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:23" (1/1) ... [2023-11-29 03:07:23,213 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:23" (1/1) ... [2023-11-29 03:07:23,213 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:23" (1/1) ... [2023-11-29 03:07:23,214 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:23" (1/1) ... [2023-11-29 03:07:23,215 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:07:23,216 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:07:23,216 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:07:23,216 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:07:23,217 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:23" (1/1) ... [2023-11-29 03:07:23,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:07:23,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:07:23,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 03:07:23,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 03:07:23,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:07:23,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:07:23,341 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:07:23,344 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:07:23,431 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:07:23,442 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:07:23,442 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:07:23,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:07:23 BoogieIcfgContainer [2023-11-29 03:07:23,444 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:07:23,446 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 03:07:23,446 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 03:07:23,450 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 03:07:23,451 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 03:07:23,451 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 03:07:22" (1/3) ... [2023-11-29 03:07:23,453 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@548e0d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 03:07:23, skipping insertion in model container [2023-11-29 03:07:23,453 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 03:07:23,453 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:23" (2/3) ... [2023-11-29 03:07:23,453 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@548e0d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 03:07:23, skipping insertion in model container [2023-11-29 03:07:23,454 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 03:07:23,454 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:07:23" (3/3) ... [2023-11-29 03:07:23,455 INFO L332 chiAutomizerObserver]: Analyzing ICFG cohencu1-both-nt.c [2023-11-29 03:07:23,528 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 03:07:23,528 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 03:07:23,528 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 03:07:23,528 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 03:07:23,529 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 03:07:23,529 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 03:07:23,529 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 03:07:23,529 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 03:07:23,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2023-11-29 03:07:23,558 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 03:07:23,558 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 03:07:23,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 03:07:23,565 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 03:07:23,565 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-29 03:07:23,566 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 03:07:23,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2023-11-29 03:07:23,567 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-29 03:07:23,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 03:07:23,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 03:07:23,568 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-29 03:07:23,568 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-29 03:07:23,578 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~a~0#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~a~0#1;havoc main_~n~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~a~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~n~0#1 := 0;main_~x~0#1 := 0;main_~y~0#1 := 1;main_~z~0#1 := 6; 5#L33-2true [2023-11-29 03:07:23,578 INFO L750 eck$LassoCheckResult]: Loop: 5#L33-2true assume !!(main_~z~0#1 <= 6 + 6 * main_~n~0#1);main_~n~0#1 := 1 + main_~n~0#1;main_~x~0#1 := main_~x~0#1 + main_~y~0#1;main_~y~0#1 := main_~y~0#1 + main_~z~0#1;main_~z~0#1 := 6 + main_~z~0#1; 5#L33-2true [2023-11-29 03:07:23,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:07:23,587 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-29 03:07:23,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:07:23,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788404394] [2023-11-29 03:07:23,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:07:23,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:07:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:07:23,699 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:07:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:07:23,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 03:07:23,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:07:23,728 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-11-29 03:07:23,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:07:23,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355865647] [2023-11-29 03:07:23,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:07:23,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:07:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:07:23,746 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:07:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:07:23,756 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 03:07:23,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:07:23,758 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-29 03:07:23,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:07:23,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319402255] [2023-11-29 03:07:23,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:07:23,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:07:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:07:23,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:07:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:07:23,787 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 03:07:23,915 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 03:07:23,916 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 03:07:23,916 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 03:07:23,916 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 03:07:23,916 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 03:07:23,917 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:07:23,917 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 03:07:23,917 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 03:07:23,917 INFO L133 ssoRankerPreferences]: Filename of dumped script: cohencu1-both-nt.c_Iteration1_Loop [2023-11-29 03:07:23,917 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 03:07:23,918 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 03:07:23,939 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 03:07:24,068 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 03:07:24,068 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 03:07:24,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:07:24,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:07:24,075 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 03:07:24,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 03:07:24,081 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 03:07:24,081 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 03:07:24,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:07:24,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:07:24,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:07:24,115 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 03:07:24,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 03:07:24,122 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 03:07:24,122 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 03:07:24,347 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 03:07:24,347 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~n~0#1=6, ULTIMATE.start_main_~z~0#1=7, ULTIMATE.start_main_~y~0#1=7} Honda state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~n~0#1=6, ULTIMATE.start_main_~z~0#1=7, ULTIMATE.start_main_~y~0#1=7} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~n~0#1=1, ULTIMATE.start_main_~z~0#1=6, ULTIMATE.start_main_~y~0#1=1}, {ULTIMATE.start_main_~x~0#1=1, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=0, ULTIMATE.start_main_~y~0#1=6}, {ULTIMATE.start_main_~x~0#1=6, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=0, ULTIMATE.start_main_~y~0#1=0}] Lambdas: [1, 1, 1] Nus: [1, 1] [2023-11-29 03:07:24,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 03:07:24,393 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 03:07:24,394 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 03:07:24,394 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 03:07:24,394 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 03:07:24,395 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 03:07:24,395 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:07:24,395 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 03:07:24,395 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 03:07:24,395 INFO L133 ssoRankerPreferences]: Filename of dumped script: cohencu1-both-nt.c_Iteration1_Lasso [2023-11-29 03:07:24,396 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 03:07:24,396 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 03:07:24,399 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 03:07:24,403 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 03:07:24,406 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 03:07:24,436 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 03:07:24,539 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 03:07:24,539 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 03:07:24,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:07:24,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:07:24,541 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 03:07:24,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 03:07:24,550 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 03:07:24,550 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 03:07:24,568 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 03:07:24,569 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 03:07:24,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-29 03:07:24,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:07:24,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:07:24,575 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 03:07:24,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 03:07:24,579 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 03:07:24,579 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 03:07:24,595 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 03:07:24,595 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 03:07:24,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-29 03:07:24,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:07:24,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:07:24,601 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 03:07:24,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-29 03:07:24,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 03:07:24,605 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 03:07:24,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-11-29 03:07:24,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:07:24,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:07:24,629 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 03:07:24,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-29 03:07:24,633 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 03:07:24,633 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 03:07:24,835 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 03:07:24,836 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=0, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=1, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=6} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-5, ULTIMATE.start_main_~y~0#1=0, ULTIMATE.start_main_~n~0#1=1, ULTIMATE.start_main_~z~0#1=6}, {ULTIMATE.start_main_~x~0#1=0, ULTIMATE.start_main_~y~0#1=6, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=0}, {ULTIMATE.start_main_~x~0#1=6, ULTIMATE.start_main_~y~0#1=0, ULTIMATE.start_main_~n~0#1=0, ULTIMATE.start_main_~z~0#1=0}] Lambdas: [1, 1, 1] Nus: [1, 1] [2023-11-29 03:07:24,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-11-29 03:07:24,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:07:24,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:07:24,846 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 03:07:24,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-29 03:07:24,850 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 03:07:24,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 03:07:24,869 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-29 03:07:24,869 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-29 03:07:24,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-29 03:07:24,889 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated [2023-11-29 03:07:24,890 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated [2023-11-29 03:07:24,891 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated [2023-11-29 03:07:24,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 03:07:24 BoogieIcfgContainer [2023-11-29 03:07:24,901 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 03:07:24,902 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:07:24,902 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:07:24,902 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:07:24,902 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:07:23" (3/4) ... [2023-11-29 03:07:24,904 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-29 03:07:24,942 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 03:07:24,942 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:07:24,944 INFO L158 Benchmark]: Toolchain (without parser) took 1976.78ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 94.1MB in the beginning and 129.0MB in the end (delta: -34.9MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2023-11-29 03:07:24,944 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 138.4MB. Free memory is still 108.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:07:24,945 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.27ms. Allocated memory is still 138.4MB. Free memory was 94.1MB in the beginning and 84.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 03:07:24,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.35ms. Allocated memory is still 138.4MB. Free memory was 84.6MB in the beginning and 83.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:07:24,947 INFO L158 Benchmark]: Boogie Preprocessor took 25.15ms. Allocated memory is still 138.4MB. Free memory was 83.5MB in the beginning and 82.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:07:24,947 INFO L158 Benchmark]: RCFGBuilder took 228.59ms. Allocated memory is still 138.4MB. Free memory was 82.0MB in the beginning and 73.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-29 03:07:24,948 INFO L158 Benchmark]: BuchiAutomizer took 1455.37ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 73.1MB in the beginning and 131.1MB in the end (delta: -58.0MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2023-11-29 03:07:24,949 INFO L158 Benchmark]: Witness Printer took 40.59ms. Allocated memory is still 178.3MB. Free memory was 131.1MB in the beginning and 129.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:07:24,953 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 138.4MB. Free memory is still 108.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 193.27ms. Allocated memory is still 138.4MB. Free memory was 94.1MB in the beginning and 84.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.35ms. Allocated memory is still 138.4MB. Free memory was 84.6MB in the beginning and 83.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.15ms. Allocated memory is still 138.4MB. Free memory was 83.5MB in the beginning and 82.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 228.59ms. Allocated memory is still 138.4MB. Free memory was 82.0MB in the beginning and 73.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1455.37ms. Allocated memory was 138.4MB in the beginning and 178.3MB in the end (delta: 39.8MB). Free memory was 73.1MB in the beginning and 131.1MB in the end (delta: -58.0MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * Witness Printer took 40.59ms. Allocated memory is still 178.3MB. Free memory was 131.1MB in the beginning and 129.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital35 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq190 hnf91 smp100 dnf100 smp100 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 33]: Nontermination argument in form of an infinite program execution. [2023-11-29 03:07:24,963 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated [2023-11-29 03:07:24,963 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated [2023-11-29 03:07:24,964 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated [2023-11-29 03:07:24,965 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated [2023-11-29 03:07:24,965 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated [2023-11-29 03:07:24,966 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet0 could not be translated Nontermination argument in form of an infinite execution State at position 0 is {y=0, x=0, a=0, \result=0, n=0, z=0} State at position 1 is {y=1, x=0, a=0, \result=0, n=0, z=6} For i>1, the state at position i is {y=1 + sum_{k=0}^i 6 + 6*k, x=0 + sum_{k=0}^i -5 + 6 + 6*k + 6*binomial(k, 2), a=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, n=0 + sum_{k=0}^i 1, z=6 + sum_{k=0}^i 6} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [1, 1, 1] Mus: [1, 1] - NonterminatingLassoResult [Line: 33]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L26] int a, n, x, y, z; [L27] a = __VERIFIER_nondet_int() [L28] n = 0 [L29] x = 0 [L30] y = 1 [L31] z = 6 Loop: [L33] COND TRUE z <= 6 * n + 6 [L41] n = n + 1 [L42] x = x + y [L43] y = y + z [L44] z = z + 6 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-29 03:07:24,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157b07a2-b34d-4e07-9a5e-666e20fcb3fd/bin/uautomizer-verify-BQ2R08f2Ya/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)