./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 e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/cohencu1-both-nt.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 0.2.3-dev-e7bb482 [2023-11-06 23:09:22,439 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:09:22,524 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 23:09:22,541 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:09:22,542 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:09:22,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:09:22,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:09:22,591 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:09:22,592 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:09:22,598 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:09:22,599 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:09:22,599 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 23:09:22,600 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 23:09:22,602 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 23:09:22,602 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 23:09:22,603 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 23:09:22,604 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 23:09:22,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:09:22,605 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 23:09:22,606 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:09:22,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:09:22,607 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:09:22,607 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:09:22,608 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 23:09:22,608 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 23:09:22,609 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 23:09:22,609 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:09:22,610 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:09:22,610 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:09:22,611 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 23:09:22,612 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:09:22,613 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:09:22,613 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:09:22,613 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:09:22,614 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:09:22,614 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 23:09:22,615 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_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca80e9b36e5fc58b8f30c1bb1c05df2fc99c88b9aad13b3e482ed10946a6c2f8 [2023-11-06 23:09:22,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:09:22,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:09:22,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:09:22,973 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:09:22,974 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:09:22,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-nla/cohencu1-both-nt.c [2023-11-06 23:09:26,037 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:09:26,313 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:09:26,314 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/sv-benchmarks/c/termination-nla/cohencu1-both-nt.c [2023-11-06 23:09:26,323 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/data/9462c611c/10f554146a1d4ec0955a5c870eb603bb/FLAGd7f09455f [2023-11-06 23:09:26,339 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/data/9462c611c/10f554146a1d4ec0955a5c870eb603bb [2023-11-06 23:09:26,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:09:26,343 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:09:26,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:09:26,346 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:09:26,351 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:09:26,352 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:09:26" (1/1) ... [2023-11-06 23:09:26,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f351a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:26, skipping insertion in model container [2023-11-06 23:09:26,354 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:09:26" (1/1) ... [2023-11-06 23:09:26,375 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:09:26,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:09:26,584 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:09:26,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:09:26,616 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:09:26,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:26 WrapperNode [2023-11-06 23:09:26,617 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:09:26,618 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:09:26,618 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:09:26,618 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:09:26,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:26" (1/1) ... [2023-11-06 23:09:26,631 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:26" (1/1) ... [2023-11-06 23:09:26,651 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2023-11-06 23:09:26,651 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:09:26,652 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:09:26,653 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:09:26,653 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:09:26,663 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:26" (1/1) ... [2023-11-06 23:09:26,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:26" (1/1) ... [2023-11-06 23:09:26,664 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:26" (1/1) ... [2023-11-06 23:09:26,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:26" (1/1) ... [2023-11-06 23:09:26,666 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:26" (1/1) ... [2023-11-06 23:09:26,673 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:26" (1/1) ... [2023-11-06 23:09:26,674 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:26" (1/1) ... [2023-11-06 23:09:26,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:26" (1/1) ... [2023-11-06 23:09:26,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:09:26,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:09:26,677 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:09:26,677 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:09:26,678 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:26" (1/1) ... [2023-11-06 23:09:26,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:09:26,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:26,719 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:09:26,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 23:09:26,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:09:26,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:09:26,837 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:09:26,839 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:09:26,946 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:09:26,956 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:09:26,956 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:09:26,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:09:26 BoogieIcfgContainer [2023-11-06 23:09:26,959 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:09:26,962 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 23:09:26,962 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 23:09:26,967 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 23:09:26,968 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:09:26,968 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 11:09:26" (1/3) ... [2023-11-06 23:09:26,970 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74d51fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 11:09:26, skipping insertion in model container [2023-11-06 23:09:26,970 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:09:26,971 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:26" (2/3) ... [2023-11-06 23:09:26,974 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74d51fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 11:09:26, skipping insertion in model container [2023-11-06 23:09:26,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 23:09:26,975 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:09:26" (3/3) ... [2023-11-06 23:09:26,982 INFO L332 chiAutomizerObserver]: Analyzing ICFG cohencu1-both-nt.c [2023-11-06 23:09:27,055 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 23:09:27,055 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 23:09:27,056 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 23:09:27,056 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 23:09:27,056 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 23:09:27,056 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 23:09:27,056 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 23:09:27,057 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 23:09:27,061 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) [2023-11-06 23:09:27,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 23:09:27,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 23:09:27,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 23:09:27,083 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 23:09:27,083 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 23:09:27,084 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 23:09:27,084 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) [2023-11-06 23:09:27,085 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-06 23:09:27,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 23:09:27,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 23:09:27,085 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 23:09:27,086 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-06 23:09:27,092 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~a~0#1, main_~n~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~a~0#1;havoc main_~n~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~a~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~n~0#1 := 0;main_~x~0#1 := 0;main_~y~0#1 := 1;main_~z~0#1 := 6; 5#L33-2true [2023-11-06 23:09:27,092 INFO L750 eck$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 [2023-11-06 23:09:27,099 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:27,099 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 23:09:27,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:27,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596295963] [2023-11-06 23:09:27,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:27,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:09:27,213 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:09:27,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:09:27,252 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:09:27,256 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:27,257 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-11-06 23:09:27,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:27,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041960009] [2023-11-06 23:09:27,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:27,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:09:27,289 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:09:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:09:27,305 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:09:27,306 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:27,307 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-06 23:09:27,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:27,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775750198] [2023-11-06 23:09:27,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:27,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:09:27,333 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:09:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:09:27,342 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:09:27,500 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 23:09:27,501 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 23:09:27,501 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 23:09:27,501 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 23:09:27,502 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 23:09:27,502 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:09:27,502 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 23:09:27,502 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 23:09:27,502 INFO L133 ssoRankerPreferences]: Filename of dumped script: cohencu1-both-nt.c_Iteration1_Loop [2023-11-06 23:09:27,502 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 23:09:27,503 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 23:09:27,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 23:09:27,611 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 23:09:27,612 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 23:09:27,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:09:27,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:27,621 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:09:27,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-06 23:09:27,630 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 23:09:27,630 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 23:09:27,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:27,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:09:27,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:27,679 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:09:27,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 23:09:27,684 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 23:09:27,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-06 23:09:27,916 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 23:09:27,917 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] [2023-11-06 23:09:27,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:27,986 INFO L210 LassoAnalysis]: Preferences: [2023-11-06 23:09:27,993 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-06 23:09:27,994 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-06 23:09:27,994 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-06 23:09:27,994 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-06 23:09:27,994 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:09:27,994 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-06 23:09:27,995 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-06 23:09:27,995 INFO L133 ssoRankerPreferences]: Filename of dumped script: cohencu1-both-nt.c_Iteration1_Lasso [2023-11-06 23:09:27,995 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-06 23:09:27,995 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-06 23:09:27,998 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 23:09:28,002 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 23:09:28,015 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 23:09:28,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-06 23:09:28,206 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-06 23:09:28,206 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-06 23:09:28,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:09:28,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:28,209 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:09:28,217 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 23:09:28,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 23:09:28,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-06 23:09:28,242 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 23:09:28,242 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: [] [2023-11-06 23:09:28,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:28,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:09:28,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:28,254 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:09:28,267 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 23:09:28,267 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 23:09:28,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-06 23:09:28,297 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 23:09:28,297 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: [] [2023-11-06 23:09:28,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:28,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:09:28,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:28,309 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:09:28,313 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 23:09:28,313 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 23:09:28,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-06 23:09:28,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:28,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:09:28,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:28,355 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:09:28,364 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-06 23:09:28,364 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 23:09:28,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-06 23:09:28,542 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 23:09:28,542 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] [2023-11-06 23:09:28,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:28,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 23:09:28,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:28,551 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 23:09:28,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-06 23:09:28,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-06 23:09:28,557 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-06 23:09:28,578 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-06 23:09:28,578 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: [] [2023-11-06 23:09:28,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:28,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 11:09:28 BoogieIcfgContainer [2023-11-06 23:09:28,610 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 23:09:28,611 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:09:28,611 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:09:28,612 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:09:28,612 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:09:26" (3/4) ... [2023-11-06 23:09:28,614 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-06 23:09:28,654 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 23:09:28,654 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:09:28,656 INFO L158 Benchmark]: Toolchain (without parser) took 2312.18ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 104.9MB in the beginning and 129.7MB in the end (delta: -24.8MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2023-11-06 23:09:28,657 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 136.3MB. Free memory is still 111.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:09:28,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.00ms. Allocated memory is still 136.3MB. Free memory was 104.5MB in the beginning and 95.2MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 23:09:28,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.60ms. Allocated memory is still 136.3MB. Free memory was 95.2MB in the beginning and 93.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:09:28,659 INFO L158 Benchmark]: Boogie Preprocessor took 23.29ms. Allocated memory is still 136.3MB. Free memory was 93.9MB in the beginning and 92.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:09:28,659 INFO L158 Benchmark]: RCFGBuilder took 283.43ms. Allocated memory is still 136.3MB. Free memory was 92.8MB in the beginning and 84.4MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 23:09:28,660 INFO L158 Benchmark]: BuchiAutomizer took 1648.81ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 84.4MB in the beginning and 131.1MB in the end (delta: -46.7MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. [2023-11-06 23:09:28,660 INFO L158 Benchmark]: Witness Printer took 43.49ms. Allocated memory is still 174.1MB. Free memory was 131.1MB in the beginning and 129.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:09:28,663 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 136.3MB. Free memory is still 111.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.00ms. Allocated memory is still 136.3MB. Free memory was 104.5MB in the beginning and 95.2MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.60ms. Allocated memory is still 136.3MB. Free memory was 95.2MB in the beginning and 93.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.29ms. Allocated memory is still 136.3MB. Free memory was 93.9MB in the beginning and 92.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 283.43ms. Allocated memory is still 136.3MB. Free memory was 92.8MB in the beginning and 84.4MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1648.81ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 84.4MB in the beginning and 131.1MB in the end (delta: -46.7MB). Peak memory consumption was 33.3MB. Max. memory is 16.1GB. * Witness Printer took 43.49ms. Allocated memory is still 174.1MB. Free memory was 131.1MB in the beginning and 129.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 1.5s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. 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: 0.6s 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. Nontermination argument in form of an infinite execution State at position 0 is {y=0, x=0, a=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12136a30=0, n=0, z=0} State at position 1 is {y=1, x=0, a=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12136a30=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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12136a30=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! [2023-11-06 23:09:28,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1bc75bb6-feb5-45b4-9d25-048481111544/bin/uautomizer-verify-WvqO1wxjHP/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)