./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/bh2017-ex3.i --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_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/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_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/bh2017-ex3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/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_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/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 67c3f42f5641e6993fb8445c2fa4fe121d859872ed17b178229098422831f110 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:01:31,749 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:01:31,870 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-28 05:01:31,879 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:01:31,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:01:31,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:01:31,927 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:01:31,927 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:01:31,928 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:01:31,928 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:01:31,929 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:01:31,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:01:31,930 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:01:31,931 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 05:01:31,931 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 05:01:31,931 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 05:01:31,931 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 05:01:31,931 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 05:01:31,931 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 05:01:31,931 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:01:31,932 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 05:01:31,932 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:01:31,932 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:01:31,932 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:01:31,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:01:31,933 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 05:01:31,933 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 05:01:31,933 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 05:01:31,933 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:01:31,933 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:01:31,934 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:01:31,934 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 05:01:31,934 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:01:31,934 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:01:31,935 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:01:31,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:01:31,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:01:31,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 05:01:31,936 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 05:01:31,936 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_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/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 -> 67c3f42f5641e6993fb8445c2fa4fe121d859872ed17b178229098422831f110 [2024-11-28 05:01:32,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:01:32,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:01:32,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:01:32,299 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:01:32,300 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:01:32,302 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/loop-lit/bh2017-ex3.i [2024-11-28 05:01:35,756 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/bin/uautomizer-verify-aQ6SnzHsRB/data/85626d19b/a986172481cb4d9eb923676f1026f8d4/FLAG72bc1d387 [2024-11-28 05:01:36,148 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:01:36,149 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/sv-benchmarks/c/loop-lit/bh2017-ex3.i [2024-11-28 05:01:36,166 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/bin/uautomizer-verify-aQ6SnzHsRB/data/85626d19b/a986172481cb4d9eb923676f1026f8d4/FLAG72bc1d387 [2024-11-28 05:01:36,208 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/bin/uautomizer-verify-aQ6SnzHsRB/data/85626d19b/a986172481cb4d9eb923676f1026f8d4 [2024-11-28 05:01:36,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:01:36,215 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:01:36,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:01:36,219 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:01:36,225 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:01:36,228 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:01:36" (1/1) ... [2024-11-28 05:01:36,229 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d1cdc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:36, skipping insertion in model container [2024-11-28 05:01:36,229 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:01:36" (1/1) ... [2024-11-28 05:01:36,247 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:01:36,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:01:36,463 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:01:36,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:01:36,492 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:01:36,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:36 WrapperNode [2024-11-28 05:01:36,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:01:36,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:01:36,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:01:36,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:01:36,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:36" (1/1) ... [2024-11-28 05:01:36,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:36" (1/1) ... [2024-11-28 05:01:36,536 INFO L138 Inliner]: procedures = 15, calls = 11, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 72 [2024-11-28 05:01:36,537 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:01:36,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:01:36,538 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:01:36,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:01:36,549 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:36" (1/1) ... [2024-11-28 05:01:36,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:36" (1/1) ... [2024-11-28 05:01:36,550 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:36" (1/1) ... [2024-11-28 05:01:36,572 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 05:01:36,572 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:36" (1/1) ... [2024-11-28 05:01:36,572 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:36" (1/1) ... [2024-11-28 05:01:36,578 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:36" (1/1) ... [2024-11-28 05:01:36,582 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:36" (1/1) ... [2024-11-28 05:01:36,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:36" (1/1) ... [2024-11-28 05:01:36,591 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:36" (1/1) ... [2024-11-28 05:01:36,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:36" (1/1) ... [2024-11-28 05:01:36,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:01:36,598 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:01:36,598 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:01:36,599 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:01:36,603 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:36" (1/1) ... [2024-11-28 05:01:36,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:01:36,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:01:36,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:01:36,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 05:01:36,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:01:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:01:36,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:01:36,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:01:36,773 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:01:36,775 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:01:37,021 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-28 05:01:37,023 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:01:37,042 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:01:37,043 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:01:37,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:01:37 BoogieIcfgContainer [2024-11-28 05:01:37,044 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:01:37,045 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 05:01:37,045 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 05:01:37,052 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 05:01:37,053 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:01:37,053 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 05:01:36" (1/3) ... [2024-11-28 05:01:37,054 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46d5bc2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 05:01:37, skipping insertion in model container [2024-11-28 05:01:37,055 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:01:37,055 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:01:36" (2/3) ... [2024-11-28 05:01:37,056 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46d5bc2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 05:01:37, skipping insertion in model container [2024-11-28 05:01:37,056 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:01:37,057 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:01:37" (3/3) ... [2024-11-28 05:01:37,059 INFO L363 chiAutomizerObserver]: Analyzing ICFG bh2017-ex3.i [2024-11-28 05:01:37,136 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 05:01:37,136 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 05:01:37,136 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 05:01:37,136 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 05:01:37,137 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 05:01:37,138 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 05:01:37,138 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 05:01:37,138 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 05:01:37,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 32 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 31 states have internal predecessors, (46), 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 05:01:37,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2024-11-28 05:01:37,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:01:37,168 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:01:37,174 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:01:37,175 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:01:37,175 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 05:01:37,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 32 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 31 states have internal predecessors, (46), 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 05:01:37,178 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2024-11-28 05:01:37,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:01:37,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:01:37,183 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-28 05:01:37,183 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:01:37,191 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~post3#1, main_#t~nondet4#1, main_#t~post5#1, main_~m~0#1, main_~n~0#1;main_~m~0#1 := 0;main_~n~0#1 := 0;" [2024-11-28 05:01:37,191 INFO L749 eck$LassoCheckResult]: Loop: "assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~m~0#1 <= 60 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;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if main_~n~0#1 <= 60 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;havoc main_#t~nondet1#1;assume 0 == main_#t~nondet1#1 || 1 == main_#t~nondet1#1;" "assume 0 != main_#t~nondet1#1 % 256;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;assume 0 == main_#t~nondet2#1 || 1 == main_#t~nondet2#1;" "assume !(0 != main_#t~nondet2#1 % 256);havoc main_#t~nondet2#1;" [2024-11-28 05:01:37,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:01:37,198 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-28 05:01:37,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:01:37,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318867913] [2024-11-28 05:01:37,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:01:37,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:01:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:01:37,287 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:01:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:01:37,310 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:01:37,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:01:37,313 INFO L85 PathProgramCache]: Analyzing trace with hash -637622967, now seen corresponding path program 1 times [2024-11-28 05:01:37,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:01:37,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074464469] [2024-11-28 05:01:37,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:01:37,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:01:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:01:37,351 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:01:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:01:37,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:01:37,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:01:37,370 INFO L85 PathProgramCache]: Analyzing trace with hash 908673863, now seen corresponding path program 1 times [2024-11-28 05:01:37,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:01:37,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809735713] [2024-11-28 05:01:37,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:01:37,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:01:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:01:37,391 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:01:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:01:37,410 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:01:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:01:37,846 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:01:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:01:37,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 05:01:37 BoogieIcfgContainer [2024-11-28 05:01:37,884 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 05:01:37,884 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:01:37,885 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:01:37,885 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:01:37,886 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:01:37" (3/4) ... [2024-11-28 05:01:37,888 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 05:01:37,927 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 05:01:37,928 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:01:37,929 INFO L158 Benchmark]: Toolchain (without parser) took 1714.99ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 51.6MB in the end (delta: 55.5MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-28 05:01:37,930 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 167.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:01:37,930 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.87ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 95.8MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:01:37,931 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.56ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 94.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:01:37,932 INFO L158 Benchmark]: Boogie Preprocessor took 60.13ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 93.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:01:37,932 INFO L158 Benchmark]: RCFGBuilder took 446.06ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 82.1MB in the end (delta: 11.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:01:37,933 INFO L158 Benchmark]: BuchiAutomizer took 838.70ms. Allocated memory is still 142.6MB. Free memory was 81.8MB in the beginning and 53.6MB in the end (delta: 28.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 05:01:37,933 INFO L158 Benchmark]: Witness Printer took 43.23ms. Allocated memory is still 142.6MB. Free memory was 53.6MB in the beginning and 51.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:01:37,936 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 167.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.87ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 95.8MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.56ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 94.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 60.13ms. Allocated memory is still 142.6MB. Free memory was 94.5MB in the beginning and 93.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 446.06ms. Allocated memory is still 142.6MB. Free memory was 93.1MB in the beginning and 82.1MB in the end (delta: 11.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 838.70ms. Allocated memory is still 142.6MB. Free memory was 81.8MB in the beginning and 53.6MB in the end (delta: 28.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 43.23ms. Allocated memory is still 142.6MB. Free memory was 53.6MB in the beginning and 51.6MB in the end (delta: 2.0MB). 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 0.6s. 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: [L16] int m = 0; [L17] int n = 0; VAL [m=0, n=0] Loop: [L19] CALL __VERIFIER_assert(m <= 60) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(m <= 60) [L20] CALL __VERIFIER_assert(n <= 60) [L13] COND FALSE !(!(cond)) [L20] RET __VERIFIER_assert(n <= 60) [L21] COND TRUE __VERIFIER_nondet_bool() [L22] COND FALSE !(__VERIFIER_nondet_bool()) 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: [L16] int m = 0; [L17] int n = 0; VAL [m=0, n=0] Loop: [L19] CALL __VERIFIER_assert(m <= 60) [L13] COND FALSE !(!(cond)) [L19] RET __VERIFIER_assert(m <= 60) [L20] CALL __VERIFIER_assert(n <= 60) [L13] COND FALSE !(!(cond)) [L20] RET __VERIFIER_assert(n <= 60) [L21] COND TRUE __VERIFIER_nondet_bool() [L22] COND FALSE !(__VERIFIER_nondet_bool()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-28 05:01:37,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_362bb1a5-38f8-4dc8-b622-03d66a1ccb1e/bin/uautomizer-verify-aQ6SnzHsRB/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)