./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB --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 6835149c4278fd8af0ce273d8cc15b325ec6738caba22fa2c7b2c4b417fc898f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:23:39,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:23:39,327 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-28 05:23:39,336 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:23:39,336 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:23:39,383 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:23:39,384 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:23:39,384 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:23:39,385 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:23:39,385 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:23:39,385 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:23:39,385 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:23:39,386 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:23:39,386 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 05:23:39,386 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 05:23:39,386 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 05:23:39,386 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 05:23:39,386 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 05:23:39,386 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 05:23:39,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:23:39,388 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 05:23:39,388 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:23:39,388 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:23:39,389 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:23:39,389 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:23:39,389 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 05:23:39,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 05:23:39,389 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 05:23:39,389 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:23:39,389 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:23:39,390 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:23:39,390 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 05:23:39,390 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:23:39,390 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:23:39,390 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:23:39,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:23:39,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:23:39,390 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 05:23:39,391 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 05:23:39,391 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_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 6835149c4278fd8af0ce273d8cc15b325ec6738caba22fa2c7b2c4b417fc898f [2024-11-28 05:23:39,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:23:39,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:23:39,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:23:39,784 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:23:39,785 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:23:39,786 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/loops/while_infinite_loop_1.c [2024-11-28 05:23:42,950 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB/data/f33239b75/c85f72f3d89848f1bd197534bbdabb4d/FLAG556afd994 [2024-11-28 05:23:43,220 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:23:43,221 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/sv-benchmarks/c/loops/while_infinite_loop_1.c [2024-11-28 05:23:43,230 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB/data/f33239b75/c85f72f3d89848f1bd197534bbdabb4d/FLAG556afd994 [2024-11-28 05:23:43,248 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB/data/f33239b75/c85f72f3d89848f1bd197534bbdabb4d [2024-11-28 05:23:43,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:23:43,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:23:43,254 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:23:43,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:23:43,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:23:43,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:23:43" (1/1) ... [2024-11-28 05:23:43,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2152b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:43, skipping insertion in model container [2024-11-28 05:23:43,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:23:43" (1/1) ... [2024-11-28 05:23:43,299 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:23:43,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:23:43,498 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:23:43,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:23:43,530 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:23:43,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:43 WrapperNode [2024-11-28 05:23:43,531 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:23:43,532 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:23:43,532 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:23:43,532 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:23:43,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:43" (1/1) ... [2024-11-28 05:23:43,546 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:43" (1/1) ... [2024-11-28 05:23:43,563 INFO L138 Inliner]: procedures = 12, calls = 10, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 29 [2024-11-28 05:23:43,563 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:23:43,564 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:23:43,564 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:23:43,564 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:23:43,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:43" (1/1) ... [2024-11-28 05:23:43,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:43" (1/1) ... [2024-11-28 05:23:43,575 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:43" (1/1) ... [2024-11-28 05:23:43,586 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]. [2024-11-28 05:23:43,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:43" (1/1) ... [2024-11-28 05:23:43,587 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:43" (1/1) ... [2024-11-28 05:23:43,589 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:43" (1/1) ... [2024-11-28 05:23:43,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:43" (1/1) ... [2024-11-28 05:23:43,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:43" (1/1) ... [2024-11-28 05:23:43,598 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:43" (1/1) ... [2024-11-28 05:23:43,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:43" (1/1) ... [2024-11-28 05:23:43,603 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:23:43,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:23:43,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:23:43,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:23:43,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:43" (1/1) ... [2024-11-28 05:23:43,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:23:43,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:23:43,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:23:43,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 05:23:43,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:23:43,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:23:43,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:23:43,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:23:43,763 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:23:43,765 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:23:43,887 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-28 05:23:43,888 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:23:43,902 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:23:43,902 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:23:43,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:23:43 BoogieIcfgContainer [2024-11-28 05:23:43,903 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:23:43,904 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 05:23:43,905 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 05:23:43,913 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 05:23:43,914 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:23:43,914 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 05:23:43" (1/3) ... [2024-11-28 05:23:43,916 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19c5156e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 05:23:43, skipping insertion in model container [2024-11-28 05:23:43,917 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:23:43,917 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:43" (2/3) ... [2024-11-28 05:23:43,918 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19c5156e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 05:23:43, skipping insertion in model container [2024-11-28 05:23:43,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:23:43,918 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:23:43" (3/3) ... [2024-11-28 05:23:43,920 INFO L363 chiAutomizerObserver]: Analyzing ICFG while_infinite_loop_1.c [2024-11-28 05:23:43,994 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 05:23:43,994 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 05:23:43,994 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 05:23:43,994 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 05:23:43,995 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 05:23:43,996 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 05:23:43,996 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 05:23:43,996 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 05:23:44,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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) [2024-11-28 05:23:44,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 05:23:44,028 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:23:44,029 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:23:44,035 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:23:44,035 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-28 05:23:44,035 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 05:23:44,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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) [2024-11-28 05:23:44,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-28 05:23:44,039 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:23:44,039 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:23:44,039 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:23:44,039 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-28 05:23:44,049 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(24, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~x~0#1;main_~x~0#1 := 0;" [2024-11-28 05:23:44,050 INFO L749 eck$LassoCheckResult]: Loop: "assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == main_~x~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1;" "assume !(0 == __VERIFIER_assert_~cond#1);" "havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;" [2024-11-28 05:23:44,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:44,061 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 05:23:44,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:23:44,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520493381] [2024-11-28 05:23:44,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:44,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:23:44,176 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:23:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:23:44,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:23:44,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:44,216 INFO L85 PathProgramCache]: Analyzing trace with hash 41005, now seen corresponding path program 1 times [2024-11-28 05:23:44,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:23:44,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370927449] [2024-11-28 05:23:44,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:44,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:23:44,233 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:23:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:23:44,239 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:23:44,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:23:44,241 INFO L85 PathProgramCache]: Analyzing trace with hash 28699947, now seen corresponding path program 1 times [2024-11-28 05:23:44,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:23:44,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272847453] [2024-11-28 05:23:44,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:23:44,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:23:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:23:44,262 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:23:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:23:44,277 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:23:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:23:44,576 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:23:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:23:44,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 05:23:44 BoogieIcfgContainer [2024-11-28 05:23:44,617 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 05:23:44,618 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:23:44,618 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:23:44,618 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:23:44,619 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:23:43" (3/4) ... [2024-11-28 05:23:44,621 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 05:23:44,654 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 05:23:44,655 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:23:44,657 INFO L158 Benchmark]: Toolchain (without parser) took 1403.81ms. Allocated memory was 167.8MB in the beginning and 117.4MB in the end (delta: -50.3MB). Free memory was 144.5MB in the beginning and 47.8MB in the end (delta: 96.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-28 05:23:44,657 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:23:44,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.31ms. Allocated memory was 167.8MB in the beginning and 117.4MB in the end (delta: -50.3MB). Free memory was 144.5MB in the beginning and 83.8MB in the end (delta: 60.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:23:44,658 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.16ms. Allocated memory is still 117.4MB. Free memory was 83.8MB in the beginning and 82.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:23:44,658 INFO L158 Benchmark]: Boogie Preprocessor took 40.14ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:23:44,659 INFO L158 Benchmark]: RCFGBuilder took 298.89ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 72.4MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:23:44,659 INFO L158 Benchmark]: BuchiAutomizer took 712.87ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 49.7MB in the end (delta: 22.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 05:23:44,660 INFO L158 Benchmark]: Witness Printer took 37.22ms. Allocated memory is still 117.4MB. Free memory was 49.7MB in the beginning and 47.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:23:44,662 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.31ms. Allocated memory was 167.8MB in the beginning and 117.4MB in the end (delta: -50.3MB). Free memory was 144.5MB in the beginning and 83.8MB in the end (delta: 60.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.16ms. Allocated memory is still 117.4MB. Free memory was 83.8MB in the beginning and 82.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.14ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 298.89ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 72.4MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 712.87ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 49.7MB in the end (delta: 22.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 37.22ms. Allocated memory is still 117.4MB. Free memory was 49.7MB in the beginning and 47.8MB in the end (delta: 1.9MB). 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 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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: 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: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L13] int x=0; VAL [x=0] Loop: [L17] CALL __VERIFIER_assert(x==0) [L6] COND FALSE !(!(cond)) [L17] RET __VERIFIER_assert(x==0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int x=0; VAL [x=0] Loop: [L17] CALL __VERIFIER_assert(x==0) [L6] COND FALSE !(!(cond)) [L17] RET __VERIFIER_assert(x==0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-28 05:23:44,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8744e36c-9f3d-4602-b869-4bc91d39ae46/bin/uautomizer-verify-aQ6SnzHsRB/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)