./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Madrid.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 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_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Madrid.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a1bd7f3201612d4dbbad9fa4198a254c8b8a340584a64011f322e9281c45b868 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:14:03,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:14:03,530 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-21 22:14:03,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:14:03,539 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:14:03,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:14:03,578 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:14:03,578 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:14:03,579 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:14:03,584 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:14:03,586 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:14:03,586 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:14:03,587 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:14:03,589 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:14:03,589 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:14:03,590 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:14:03,590 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:14:03,590 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:14:03,591 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:14:03,591 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:14:03,591 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:14:03,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:14:03,592 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:14:03,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:14:03,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:14:03,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:14:03,594 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:14:03,594 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:14:03,595 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:14:03,595 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:14:03,596 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:14:03,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:14:03,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:14:03,597 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:14:03,598 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:14:03,598 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_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1bd7f3201612d4dbbad9fa4198a254c8b8a340584a64011f322e9281c45b868 [2023-11-21 22:14:03,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:14:03,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:14:03,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:14:03,925 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:14:03,925 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:14:03,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/termination-crafted/Madrid.c [2023-11-21 22:14:07,211 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:14:07,478 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:14:07,479 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/sv-benchmarks/c/termination-crafted/Madrid.c [2023-11-21 22:14:07,487 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/data/4a9f61b64/5f99d277872d41b6a96e7b5e8d9c99a3/FLAG475a9286e [2023-11-21 22:14:07,509 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/data/4a9f61b64/5f99d277872d41b6a96e7b5e8d9c99a3 [2023-11-21 22:14:07,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:14:07,517 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:14:07,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:14:07,521 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:14:07,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:14:07,530 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:14:07" (1/1) ... [2023-11-21 22:14:07,531 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@511d9d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:07, skipping insertion in model container [2023-11-21 22:14:07,531 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:14:07" (1/1) ... [2023-11-21 22:14:07,558 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:14:07,754 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:14:07,762 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:14:07,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:14:07,795 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:14:07,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:07 WrapperNode [2023-11-21 22:14:07,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:14:07,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:14:07,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:14:07,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:14:07,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:07" (1/1) ... [2023-11-21 22:14:07,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:07" (1/1) ... [2023-11-21 22:14:07,831 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2023-11-21 22:14:07,832 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:14:07,833 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:14:07,833 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:14:07,834 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:14:07,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:07" (1/1) ... [2023-11-21 22:14:07,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:07" (1/1) ... [2023-11-21 22:14:07,847 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:07" (1/1) ... [2023-11-21 22:14:07,854 INFO L187 HeapSplitter]: Split 0 memory accesses to 0 slices as follows [] [2023-11-21 22:14:07,855 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:07" (1/1) ... [2023-11-21 22:14:07,855 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:07" (1/1) ... [2023-11-21 22:14:07,858 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:07" (1/1) ... [2023-11-21 22:14:07,863 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:07" (1/1) ... [2023-11-21 22:14:07,864 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:07" (1/1) ... [2023-11-21 22:14:07,864 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:07" (1/1) ... [2023-11-21 22:14:07,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:14:07,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:14:07,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:14:07,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:14:07,869 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:07" (1/1) ... [2023-11-21 22:14:07,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:14:07,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:07,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:14:07,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:14:07,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:14:07,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:14:08,071 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:14:08,073 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:14:08,135 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:14:08,149 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:14:08,149 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:14:08,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:14:08 BoogieIcfgContainer [2023-11-21 22:14:08,152 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:14:08,153 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:14:08,154 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:14:08,158 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:14:08,159 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:14:08,160 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:14:07" (1/3) ... [2023-11-21 22:14:08,162 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b16a3f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:14:08, skipping insertion in model container [2023-11-21 22:14:08,162 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:14:08,163 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:14:07" (2/3) ... [2023-11-21 22:14:08,166 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b16a3f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:14:08, skipping insertion in model container [2023-11-21 22:14:08,166 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:14:08,167 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:14:08" (3/3) ... [2023-11-21 22:14:08,168 INFO L332 chiAutomizerObserver]: Analyzing ICFG Madrid.c [2023-11-21 22:14:08,258 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:14:08,260 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:14:08,261 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:14:08,261 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:14:08,261 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:14:08,262 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:14:08,262 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:14:08,263 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:14:08,268 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) [2023-11-21 22:14:08,291 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-21 22:14:08,292 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:14:08,292 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:14:08,299 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:14:08,300 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-21 22:14:08,301 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:14:08,301 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) [2023-11-21 22:14:08,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-21 22:14:08,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:14:08,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:14:08,304 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:14:08,305 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-21 22:14:08,314 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := 7; 6#L14-2true [2023-11-21 22:14:08,315 INFO L750 eck$LassoCheckResult]: Loop: 6#L14-2true assume !false;main_~x~0#1 := 2; 6#L14-2true [2023-11-21 22:14:08,322 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:08,322 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-21 22:14:08,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:08,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107761130] [2023-11-21 22:14:08,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:08,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:14:08,424 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:14:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:14:08,448 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:14:08,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:08,456 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-11-21 22:14:08,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:08,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71455451] [2023-11-21 22:14:08,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:08,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:14:08,464 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:14:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:14:08,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:14:08,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:08,470 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-21 22:14:08,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:08,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249203195] [2023-11-21 22:14:08,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:08,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:14:08,478 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:14:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:14:08,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:14:08,566 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:14:08,567 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:14:08,567 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:14:08,567 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:14:08,567 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 22:14:08,567 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:14:08,568 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:14:08,568 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:14:08,568 INFO L133 ssoRankerPreferences]: Filename of dumped script: Madrid.c_Iteration1_Lasso [2023-11-21 22:14:08,568 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:14:08,568 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:14:08,587 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:14:08,599 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:14:08,612 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:14:08,619 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:14:08,696 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:14:08,696 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 22:14:08,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:14:08,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:08,705 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:14:08,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-21 22:14:08,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:14:08,710 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:14:08,736 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 22:14:08,736 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 22:14:08,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:14:08,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:14:08,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:08,762 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:14:08,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-21 22:14:08,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:14:08,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:14:08,794 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 22:14:08,795 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-21 22:14:08,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-21 22:14:08,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:14:08,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:08,814 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:14:08,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-21 22:14:08,817 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:14:08,817 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:14:08,860 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 22:14:08,861 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: [] [2023-11-21 22:14:08,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:14:08,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:14:08,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:08,880 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:14:08,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-21 22:14:08,882 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:14:08,882 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:14:08,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-21 22:14:08,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:14:08,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:14:08,954 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:14:08,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-21 22:14:08,989 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 22:14:08,989 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:14:09,020 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-21 22:14:09,021 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=0} Honda state: {ULTIMATE.start_main_~x~0#1=7} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=1}, {ULTIMATE.start_main_~x~0#1=-8}, {ULTIMATE.start_main_~x~0#1=2}] Lambdas: [0, 0, 0] Nus: [0, 0] [2023-11-21 22:14:09,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:14:09,050 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-21 22:14:09,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-21 22:14:09,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-21 22:14:09,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-21 22:14:09,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-21 22:14:09,052 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-21 22:14:09,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 10:14:09 BoogieIcfgContainer [2023-11-21 22:14:09,060 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 22:14:09,060 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:14:09,060 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:14:09,061 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:14:09,061 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:14:08" (3/4) ... [2023-11-21 22:14:09,063 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-21 22:14:09,100 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:14:09,100 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:14:09,102 INFO L158 Benchmark]: Toolchain (without parser) took 1584.59ms. Allocated memory is still 174.1MB. Free memory was 119.6MB in the beginning and 140.5MB in the end (delta: -20.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:14:09,103 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 119.5MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:14:09,103 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.70ms. Allocated memory is still 174.1MB. Free memory was 119.2MB in the beginning and 110.4MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 22:14:09,104 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.38ms. Allocated memory is still 174.1MB. Free memory was 110.3MB in the beginning and 108.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:14:09,105 INFO L158 Benchmark]: Boogie Preprocessor took 32.86ms. Allocated memory is still 174.1MB. Free memory was 108.7MB in the beginning and 107.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:14:09,105 INFO L158 Benchmark]: RCFGBuilder took 284.88ms. Allocated memory is still 174.1MB. Free memory was 107.4MB in the beginning and 99.4MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 22:14:09,106 INFO L158 Benchmark]: BuchiAutomizer took 906.46ms. Allocated memory is still 174.1MB. Free memory was 99.4MB in the beginning and 141.9MB in the end (delta: -42.5MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2023-11-21 22:14:09,106 INFO L158 Benchmark]: Witness Printer took 40.39ms. Allocated memory is still 174.1MB. Free memory was 141.9MB in the beginning and 140.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:14:09,110 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 119.5MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.70ms. Allocated memory is still 174.1MB. Free memory was 119.2MB in the beginning and 110.4MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.38ms. Allocated memory is still 174.1MB. Free memory was 110.3MB in the beginning and 108.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.86ms. Allocated memory is still 174.1MB. Free memory was 108.7MB in the beginning and 107.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 284.88ms. Allocated memory is still 174.1MB. Free memory was 107.4MB in the beginning and 99.4MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 906.46ms. Allocated memory is still 174.1MB. Free memory was 99.4MB in the beginning and 141.9MB in the end (delta: -42.5MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * Witness Printer took 40.39ms. Allocated memory is still 174.1MB. Free memory was 141.9MB in the beginning and 140.5MB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false 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 0.8s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. 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: inital6 mio100 ax333 hnf100 lsp30 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq233 hnf100 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 14]: Nontermination argument in form of an infinite program execution. [2023-11-21 22:14:09,118 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-21 22:14:09,118 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-21 22:14:09,119 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-21 22:14:09,119 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-21 22:14:09,119 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-21 22:14:09,119 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-21 22:14:09,120 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-21 22:14:09,120 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-21 22:14:09,120 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-21 22:14:09,120 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated [2023-11-21 22:14:09,121 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~true could not be translated [2023-11-21 22:14:09,121 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~unnamed0~0~false could not be translated Nontermination argument in form of an infinite execution State at position 0 is {x=0, \result=0} State at position 1 is {x=7, \result=0} For i>1, the state at position i is {x=7 + sum_{k=0}^i 1*0^k + -8*0^k + 2*0^k, \result=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint 3GEVs Lambdas: [0, 0, 0] Mus: [0, 0] - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x; [L13] x = 7 Loop: [L14] COND TRUE \read(true) [L15] x = 2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 22:14:09,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_547e9eec-cfd5-4872-9b72-191e65102089/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, 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)