./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da840386-afb2-4434-b45a-c70039bcc829/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da840386-afb2-4434-b45a-c70039bcc829/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da840386-afb2-4434-b45a-c70039bcc829/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da840386-afb2-4434-b45a-c70039bcc829/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da840386-afb2-4434-b45a-c70039bcc829/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da840386-afb2-4434-b45a-c70039bcc829/bin/uautomizer-verify-qhAvR1uOyd --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 0ad27fb086e75bf8f5b08286d8e766d07abfe44ff39234568924cf55ade7a6d5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:21:32,412 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:21:32,514 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da840386-afb2-4434-b45a-c70039bcc829/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-13 15:21:32,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:21:32,520 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:21:32,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:21:32,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:21:32,546 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:21:32,547 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:21:32,547 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:21:32,547 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:21:32,547 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:21:32,547 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:21:32,548 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 15:21:32,548 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 15:21:32,548 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 15:21:32,549 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 15:21:32,549 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 15:21:32,550 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 15:21:32,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:21:32,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 15:21:32,550 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:21:32,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:21:32,551 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:21:32,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:21:32,551 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 15:21:32,551 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 15:21:32,551 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 15:21:32,551 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:21:32,551 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:21:32,551 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:21:32,551 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:21:32,551 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 15:21:32,551 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:21:32,552 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:21:32,552 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:21:32,552 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:21:32,552 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:21:32,552 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 15:21:32,552 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_da840386-afb2-4434-b45a-c70039bcc829/bin/uautomizer-verify-qhAvR1uOyd 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 -> 0ad27fb086e75bf8f5b08286d8e766d07abfe44ff39234568924cf55ade7a6d5 [2024-11-13 15:21:32,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:21:32,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:21:32,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:21:32,889 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:21:32,889 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:21:32,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da840386-afb2-4434-b45a-c70039bcc829/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i Unable to find full path for "g++" [2024-11-13 15:21:34,828 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:21:35,084 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:21:35,085 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da840386-afb2-4434-b45a-c70039bcc829/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2024-11-13 15:21:35,093 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da840386-afb2-4434-b45a-c70039bcc829/bin/uautomizer-verify-qhAvR1uOyd/data/7e9f3cf8c/047682944b2643ed8c2b501b2eee99d4/FLAG5ff6eafac [2024-11-13 15:21:35,109 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da840386-afb2-4434-b45a-c70039bcc829/bin/uautomizer-verify-qhAvR1uOyd/data/7e9f3cf8c/047682944b2643ed8c2b501b2eee99d4 [2024-11-13 15:21:35,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:21:35,117 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:21:35,118 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:21:35,118 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:21:35,122 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:21:35,123 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:21:35" (1/1) ... [2024-11-13 15:21:35,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eeed2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:35, skipping insertion in model container [2024-11-13 15:21:35,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:21:35" (1/1) ... [2024-11-13 15:21:35,142 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:21:35,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:21:35,345 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:21:35,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:21:35,375 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:21:35,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:35 WrapperNode [2024-11-13 15:21:35,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:21:35,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:21:35,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:21:35,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:21:35,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:35" (1/1) ... [2024-11-13 15:21:35,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:35" (1/1) ... [2024-11-13 15:21:35,424 INFO L138 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 19, calls inlined = 34, statements flattened = 204 [2024-11-13 15:21:35,425 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:21:35,428 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:21:35,429 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:21:35,429 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:21:35,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:35" (1/1) ... [2024-11-13 15:21:35,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:35" (1/1) ... [2024-11-13 15:21:35,445 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:35" (1/1) ... [2024-11-13 15:21:35,465 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]. [2024-11-13 15:21:35,465 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:35" (1/1) ... [2024-11-13 15:21:35,466 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:35" (1/1) ... [2024-11-13 15:21:35,474 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:35" (1/1) ... [2024-11-13 15:21:35,482 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:35" (1/1) ... [2024-11-13 15:21:35,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:35" (1/1) ... [2024-11-13 15:21:35,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:35" (1/1) ... [2024-11-13 15:21:35,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:21:35,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:21:35,494 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:21:35,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:21:35,498 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:35" (1/1) ... [2024-11-13 15:21:35,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:21:35,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da840386-afb2-4434-b45a-c70039bcc829/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:21:35,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da840386-afb2-4434-b45a-c70039bcc829/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:21:35,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da840386-afb2-4434-b45a-c70039bcc829/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 15:21:35,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:21:35,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:21:35,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:21:35,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:21:35,657 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:21:35,661 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:21:36,102 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-13 15:21:36,102 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:21:36,124 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:21:36,124 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 15:21:36,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:21:36 BoogieIcfgContainer [2024-11-13 15:21:36,125 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:21:36,126 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 15:21:36,126 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 15:21:36,132 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 15:21:36,133 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:21:36,133 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 03:21:35" (1/3) ... [2024-11-13 15:21:36,135 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11117fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:21:36, skipping insertion in model container [2024-11-13 15:21:36,135 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:21:36,136 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:21:35" (2/3) ... [2024-11-13 15:21:36,136 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11117fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:21:36, skipping insertion in model container [2024-11-13 15:21:36,136 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:21:36,137 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:21:36" (3/3) ... [2024-11-13 15:21:36,138 INFO L333 chiAutomizerObserver]: Analyzing ICFG SpamAssassin-loop.i [2024-11-13 15:21:36,207 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 15:21:36,208 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 15:21:36,208 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 15:21:36,208 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 15:21:36,208 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 15:21:36,208 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 15:21:36,208 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 15:21:36,209 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 15:21:36,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 92 states, 91 states have (on average 1.4285714285714286) internal successors, (130), 91 states have internal predecessors, (130), 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) [2024-11-13 15:21:36,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 85 [2024-11-13 15:21:36,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:21:36,235 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:21:36,239 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 15:21:36,239 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:21:36,239 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 15:21:36,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 92 states, 91 states have (on average 1.4285714285714286) internal successors, (130), 91 states have internal predecessors, (130), 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) [2024-11-13 15:21:36,244 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 85 [2024-11-13 15:21:36,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:21:36,244 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:21:36,245 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 15:21:36,245 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-11-13 15:21:36,253 INFO L745 eck$LassoCheckResult]: Stem: 45#$Ultimate##0true 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); 57#L-1true 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~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_#t~post7#1, main_#t~post8#1, main_#t~post9#1, main_#t~post10#1, main_~len~0#1, main_~i~0#1, main_~j~0#1, main_~bufsize~0#1, main_~limit~0#1;havoc main_~len~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~bufsize~0#1;havoc main_#t~nondet1#1;main_~bufsize~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 10#L31true assume !(main_~bufsize~0#1 < 0);havoc main_#t~nondet2#1;main_~len~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~limit~0#1 := main_~bufsize~0#1 - 4;main_~i~0#1 := 0; 23#L35-2true [2024-11-13 15:21:36,253 INFO L747 eck$LassoCheckResult]: Loop: 23#L35-2true assume !!(main_~i~0#1 < main_~len~0#1);main_~j~0#1 := 0; 61#L36-2true assume !(main_~i~0#1 < main_~len~0#1 && main_~j~0#1 < main_~limit~0#1); 23#L35-2true [2024-11-13 15:21:36,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:21:36,258 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2024-11-13 15:21:36,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:21:36,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132268725] [2024-11-13 15:21:36,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:21:36,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:21:36,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:21:36,362 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:21:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:21:36,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:21:36,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:21:36,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1447, now seen corresponding path program 1 times [2024-11-13 15:21:36,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:21:36,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034162390] [2024-11-13 15:21:36,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:21:36,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:21:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:21:36,414 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:21:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:21:36,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:21:36,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:21:36,422 INFO L85 PathProgramCache]: Analyzing trace with hash 28695946, now seen corresponding path program 1 times [2024-11-13 15:21:36,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:21:36,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019800277] [2024-11-13 15:21:36,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:21:36,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:21:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:21:36,438 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:21:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:21:36,449 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:21:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:21:36,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:21:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:21:36,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 03:21:36 BoogieIcfgContainer [2024-11-13 15:21:36,776 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 15:21:36,777 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:21:36,777 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:21:36,777 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:21:36,778 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:21:36" (3/4) ... [2024-11-13 15:21:36,780 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-13 15:21:36,841 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da840386-afb2-4434-b45a-c70039bcc829/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:21:36,841 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:21:36,842 INFO L158 Benchmark]: Toolchain (without parser) took 1726.34ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 89.8MB in the end (delta: 2.6MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2024-11-13 15:21:36,843 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:21:36,843 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.70ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 81.2MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:21:36,844 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.80ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 79.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:21:36,844 INFO L158 Benchmark]: Boogie Preprocessor took 64.58ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 77.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:21:36,844 INFO L158 Benchmark]: RCFGBuilder took 631.18ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 62.2MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:21:36,845 INFO L158 Benchmark]: BuchiAutomizer took 650.64ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 37.9MB in the end (delta: 24.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:21:36,845 INFO L158 Benchmark]: Witness Printer took 63.83ms. Allocated memory is still 117.4MB. Free memory was 37.9MB in the beginning and 89.8MB in the end (delta: -51.9MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2024-11-13 15:21:36,847 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.70ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 81.2MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.80ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 79.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 64.58ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 77.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 631.18ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 62.2MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 650.64ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 37.9MB in the end (delta: 24.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 63.83ms. Allocated memory is still 117.4MB. Free memory was 37.9MB in the beginning and 89.8MB in the end (delta: -51.9MB). Peak memory consumption was 4.5MB. 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 0.5s 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: 34]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L26] int len; [L27] int i; [L28] int j; [L29] int bufsize; [L30] bufsize = __VERIFIER_nondet_int() [L31] COND FALSE !(bufsize < 0) [L32] len = __VERIFIER_nondet_int() [L33] int limit = bufsize - 4; [L34] i = 0 VAL [bufsize=0, i=0, limit=-4] Loop: [L34] COND TRUE i < len [L35] j = 0 [L35] COND FALSE !(i < len && j < limit) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 34]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L26] int len; [L27] int i; [L28] int j; [L29] int bufsize; [L30] bufsize = __VERIFIER_nondet_int() [L31] COND FALSE !(bufsize < 0) [L32] len = __VERIFIER_nondet_int() [L33] int limit = bufsize - 4; [L34] i = 0 VAL [bufsize=0, i=0, limit=-4] Loop: [L34] COND TRUE i < len [L35] j = 0 [L35] COND FALSE !(i < len && j < limit) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 15:21:36,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da840386-afb2-4434-b45a-c70039bcc829/bin/uautomizer-verify-qhAvR1uOyd/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)