./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-acceleration/phases_2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-acceleration/phases_2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 40774f15dea268138f2179cc2f832c9729515e75ef9c65e50e7b347c749bb02c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:33:36,288 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:33:36,410 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-24 00:33:36,420 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:33:36,420 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:33:36,463 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:33:36,465 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:33:36,466 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:33:36,467 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:33:36,467 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:33:36,468 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:33:36,469 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:33:36,469 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:33:36,470 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-24 00:33:36,470 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-24 00:33:36,470 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-24 00:33:36,470 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-24 00:33:36,470 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-24 00:33:36,470 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-24 00:33:36,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:33:36,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-24 00:33:36,471 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:33:36,471 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:33:36,471 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:33:36,471 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:33:36,471 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-24 00:33:36,471 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-24 00:33:36,471 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-24 00:33:36,471 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:33:36,472 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:33:36,472 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:33:36,472 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-24 00:33:36,472 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:33:36,472 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:33:36,472 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:33:36,472 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:33:36,472 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:33:36,472 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-24 00:33:36,473 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-24 00:33:36,473 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40774f15dea268138f2179cc2f832c9729515e75ef9c65e50e7b347c749bb02c [2024-11-24 00:33:36,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:33:36,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:33:36,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:33:36,900 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:33:36,901 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:33:36,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/loop-acceleration/phases_2-1.c [2024-11-24 00:33:40,224 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/data/cf3a80012/dc7d244577d4435c8b42e0e6df6c88de/FLAG92d8368d5 [2024-11-24 00:33:40,634 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:33:40,635 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/sv-benchmarks/c/loop-acceleration/phases_2-1.c [2024-11-24 00:33:40,647 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/data/cf3a80012/dc7d244577d4435c8b42e0e6df6c88de/FLAG92d8368d5 [2024-11-24 00:33:40,663 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/data/cf3a80012/dc7d244577d4435c8b42e0e6df6c88de [2024-11-24 00:33:40,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:33:40,667 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:33:40,669 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:33:40,669 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:33:40,675 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:33:40,676 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:33:40" (1/1) ... [2024-11-24 00:33:40,677 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c87bb6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:40, skipping insertion in model container [2024-11-24 00:33:40,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:33:40" (1/1) ... [2024-11-24 00:33:40,695 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:33:40,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:33:40,949 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:33:40,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:33:40,989 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:33:40,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:40 WrapperNode [2024-11-24 00:33:40,990 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:33:40,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:33:40,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:33:40,992 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:33:41,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:40" (1/1) ... [2024-11-24 00:33:41,008 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:40" (1/1) ... [2024-11-24 00:33:41,031 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 32 [2024-11-24 00:33:41,032 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:33:41,033 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:33:41,033 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:33:41,033 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:33:41,046 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:40" (1/1) ... [2024-11-24 00:33:41,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:40" (1/1) ... [2024-11-24 00:33:41,047 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:40" (1/1) ... [2024-11-24 00:33:41,065 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:33:41,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:40" (1/1) ... [2024-11-24 00:33:41,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:40" (1/1) ... [2024-11-24 00:33:41,069 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:40" (1/1) ... [2024-11-24 00:33:41,074 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:40" (1/1) ... [2024-11-24 00:33:41,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:40" (1/1) ... [2024-11-24 00:33:41,080 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:40" (1/1) ... [2024-11-24 00:33:41,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:40" (1/1) ... [2024-11-24 00:33:41,089 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:33:41,090 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:33:41,090 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:33:41,090 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:33:41,091 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:40" (1/1) ... [2024-11-24 00:33:41,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-24 00:33:41,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:33:41,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-24 00:33:41,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-24 00:33:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:33:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:33:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:33:41,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:33:41,239 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:33:41,242 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:33:41,397 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-24 00:33:41,398 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:33:41,409 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:33:41,409 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 00:33:41,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:33:41 BoogieIcfgContainer [2024-11-24 00:33:41,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:33:41,411 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-24 00:33:41,411 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-24 00:33:41,419 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-24 00:33:41,420 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 00:33:41,420 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 24.11 12:33:40" (1/3) ... [2024-11-24 00:33:41,421 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@290f3e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.11 12:33:41, skipping insertion in model container [2024-11-24 00:33:41,421 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 00:33:41,421 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:33:40" (2/3) ... [2024-11-24 00:33:41,422 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@290f3e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.11 12:33:41, skipping insertion in model container [2024-11-24 00:33:41,422 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-24 00:33:41,422 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:33:41" (3/3) ... [2024-11-24 00:33:41,424 INFO L363 chiAutomizerObserver]: Analyzing ICFG phases_2-1.c [2024-11-24 00:33:41,487 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-24 00:33:41,488 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-24 00:33:41,488 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-24 00:33:41,488 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-24 00:33:41,488 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-24 00:33:41,489 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-24 00:33:41,489 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-24 00:33:41,489 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-24 00:33:41,495 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:41,514 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-24 00:33:41,515 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 00:33:41,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 00:33:41,521 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-24 00:33:41,521 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-24 00:33:41,521 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-24 00:33:41,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 00:33:41,523 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-11-24 00:33:41,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-24 00:33:41,523 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-24 00:33:41,524 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-24 00:33:41,524 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-24 00:33:41,532 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post5#1, main_~x~0#1, main_~y~0#1;main_~x~0#1 := 1;havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume !!(main_~y~0#1 % 4294967296 > 0);" [2024-11-24 00:33:41,533 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~x~0#1 % 4294967296 < main_~y~0#1 % 4294967296;" "assume main_~x~0#1 % 4294967296 < main_~y~0#1 % 4294967296 / (main_~x~0#1 % 4294967296) % 4294967296;main_~x~0#1 := main_~x~0#1 * main_~x~0#1;" [2024-11-24 00:33:41,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:41,540 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2024-11-24 00:33:41,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 00:33:41,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449930484] [2024-11-24 00:33:41,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:41,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:33:41,653 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:33:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:33:41,683 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 00:33:41,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:41,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1383, now seen corresponding path program 1 times [2024-11-24 00:33:41,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 00:33:41,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970875266] [2024-11-24 00:33:41,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:41,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:33:41,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676186393] [2024-11-24 00:33:41,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:41,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:33:41,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:33:41,724 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:33:41,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:33:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:33:41,771 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:33:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:33:41,780 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 00:33:41,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:41,782 INFO L85 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2024-11-24 00:33:41,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-24 00:33:41,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131604245] [2024-11-24 00:33:41,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:41,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:33:41,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1473474168] [2024-11-24 00:33:41,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:41,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:33:41,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:33:41,819 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:33:41,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:33:41,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:33:41,869 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:33:41,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:33:41,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-24 00:33:42,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:33:42,237 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:33:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:33:42,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 24.11 12:33:42 BoogieIcfgContainer [2024-11-24 00:33:42,274 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-24 00:33:42,274 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:33:42,275 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:33:42,275 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:33:42,280 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:33:41" (3/4) ... [2024-11-24 00:33:42,283 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-24 00:33:42,337 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:33:42,338 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:33:42,340 INFO L158 Benchmark]: Toolchain (without parser) took 1671.43ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 40.0MB in the end (delta: 52.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-24 00:33:42,340 INFO L158 Benchmark]: CDTParser took 1.79ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:33:42,340 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.58ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 81.9MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:33:42,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.77ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 80.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:33:42,341 INFO L158 Benchmark]: Boogie Preprocessor took 56.14ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.9MB in the end (delta: 936.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:33:42,342 INFO L158 Benchmark]: RCFGBuilder took 320.38ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 70.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:33:42,342 INFO L158 Benchmark]: BuchiAutomizer took 862.87ms. Allocated memory is still 117.4MB. Free memory was 70.5MB in the beginning and 41.8MB in the end (delta: 28.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 00:33:42,343 INFO L158 Benchmark]: Witness Printer took 63.21ms. Allocated memory is still 117.4MB. Free memory was 41.8MB in the beginning and 40.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:33:42,348 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.79ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.58ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 81.9MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.77ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 80.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.14ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.9MB in the end (delta: 936.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 320.38ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 70.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 862.87ms. Allocated memory is still 117.4MB. Free memory was 70.5MB in the beginning and 41.8MB in the end (delta: 28.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 63.21ms. Allocated memory is still 117.4MB. Free memory was 41.8MB in the beginning and 40.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s 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: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 23]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L18] unsigned int x = 1; [L19] unsigned int y = __VERIFIER_nondet_uint(); [L21] COND FALSE !(!(y > 0)) VAL [x=1, y=2] Loop: [L23] COND TRUE x < y [L24] COND TRUE x < y / x [L25] x *= x End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 23]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L18] unsigned int x = 1; [L19] unsigned int y = __VERIFIER_nondet_uint(); [L21] COND FALSE !(!(y > 0)) VAL [x=1, y=2] Loop: [L23] COND TRUE x < y [L24] COND TRUE x < y / x [L25] x *= x End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-24 00:33:42,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:33:42,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:33:42,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e30d066-b596-4c38-ae12-9dd20adfe70e/bin/uautomizer-verify-LYvppIcaGC/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)