./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72936ae5-d7b8-4249-9f58-252cd6fff7b7/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72936ae5-d7b8-4249-9f58-252cd6fff7b7/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_72936ae5-d7b8-4249-9f58-252cd6fff7b7/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72936ae5-d7b8-4249-9f58-252cd6fff7b7/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72936ae5-d7b8-4249-9f58-252cd6fff7b7/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_72936ae5-d7b8-4249-9f58-252cd6fff7b7/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 0ad27fb086e75bf8f5b08286d8e766d07abfe44ff39234568924cf55ade7a6d5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:11:09,141 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:11:09,243 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72936ae5-d7b8-4249-9f58-252cd6fff7b7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-27 20:11:09,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:11:09,251 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:11:09,294 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:11:09,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:11:09,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:11:09,296 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:11:09,296 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:11:09,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:11:09,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:11:09,297 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:11:09,297 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 20:11:09,297 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 20:11:09,297 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 20:11:09,297 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 20:11:09,297 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 20:11:09,298 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 20:11:09,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:11:09,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 20:11:09,300 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:11:09,300 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:11:09,300 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:11:09,300 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:11:09,300 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 20:11:09,300 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 20:11:09,300 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 20:11:09,300 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:11:09,300 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:11:09,301 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:11:09,301 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 20:11:09,301 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:11:09,301 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:11:09,301 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:11:09,302 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:11:09,302 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:11:09,302 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 20:11:09,302 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 20:11:09,302 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_72936ae5-d7b8-4249-9f58-252cd6fff7b7/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 -> 0ad27fb086e75bf8f5b08286d8e766d07abfe44ff39234568924cf55ade7a6d5 [2024-11-27 20:11:09,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:11:09,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:11:09,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:11:09,680 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:11:09,680 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:11:09,682 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72936ae5-d7b8-4249-9f58-252cd6fff7b7/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2024-11-27 20:11:12,956 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72936ae5-d7b8-4249-9f58-252cd6fff7b7/bin/uautomizer-verify-aQ6SnzHsRB/data/983e00fa9/fc21a1ff4997472abbf00d3d3dd4c34d/FLAGfe2a66a59 [2024-11-27 20:11:13,251 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:11:13,252 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72936ae5-d7b8-4249-9f58-252cd6fff7b7/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2024-11-27 20:11:13,260 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72936ae5-d7b8-4249-9f58-252cd6fff7b7/bin/uautomizer-verify-aQ6SnzHsRB/data/983e00fa9/fc21a1ff4997472abbf00d3d3dd4c34d/FLAGfe2a66a59 [2024-11-27 20:11:13,279 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72936ae5-d7b8-4249-9f58-252cd6fff7b7/bin/uautomizer-verify-aQ6SnzHsRB/data/983e00fa9/fc21a1ff4997472abbf00d3d3dd4c34d [2024-11-27 20:11:13,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:11:13,284 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:11:13,286 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:11:13,286 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:11:13,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:11:13,293 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:11:13" (1/1) ... [2024-11-27 20:11:13,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d7ad56d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:11:13, skipping insertion in model container [2024-11-27 20:11:13,295 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:11:13" (1/1) ... [2024-11-27 20:11:13,315 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:11:13,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:11:13,569 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:11:13,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:11:13,613 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:11:13,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:11:13 WrapperNode [2024-11-27 20:11:13,614 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:11:13,615 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:11:13,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:11:13,616 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:11:13,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:11:13" (1/1) ... [2024-11-27 20:11:13,643 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:11:13" (1/1) ... [2024-11-27 20:11:13,682 INFO L138 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 19, calls inlined = 34, statements flattened = 204 [2024-11-27 20:11:13,686 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:11:13,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:11:13,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:11:13,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:11:13,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:11:13" (1/1) ... [2024-11-27 20:11:13,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:11:13" (1/1) ... [2024-11-27 20:11:13,702 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:11:13" (1/1) ... [2024-11-27 20:11:13,724 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]. [2024-11-27 20:11:13,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:11:13" (1/1) ... [2024-11-27 20:11:13,728 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:11:13" (1/1) ... [2024-11-27 20:11:13,737 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:11:13" (1/1) ... [2024-11-27 20:11:13,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:11:13" (1/1) ... [2024-11-27 20:11:13,749 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:11:13" (1/1) ... [2024-11-27 20:11:13,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:11:13" (1/1) ... [2024-11-27 20:11:13,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:11:13" (1/1) ... [2024-11-27 20:11:13,761 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:11:13,762 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:11:13,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:11:13,765 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:11:13,766 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:11:13" (1/1) ... [2024-11-27 20:11:13,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:11:13,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72936ae5-d7b8-4249-9f58-252cd6fff7b7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:11:13,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72936ae5-d7b8-4249-9f58-252cd6fff7b7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:11:13,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72936ae5-d7b8-4249-9f58-252cd6fff7b7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 20:11:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:11:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:11:13,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:11:13,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:11:13,959 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:11:13,961 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:11:14,314 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-27 20:11:14,314 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:11:14,332 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:11:14,333 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:11:14,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:11:14 BoogieIcfgContainer [2024-11-27 20:11:14,333 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:11:14,334 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 20:11:14,334 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 20:11:14,342 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 20:11:14,343 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:11:14,343 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 08:11:13" (1/3) ... [2024-11-27 20:11:14,344 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@713d9db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:11:14, skipping insertion in model container [2024-11-27 20:11:14,344 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:11:14,345 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:11:13" (2/3) ... [2024-11-27 20:11:14,345 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@713d9db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:11:14, skipping insertion in model container [2024-11-27 20:11:14,345 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:11:14,345 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:11:14" (3/3) ... [2024-11-27 20:11:14,346 INFO L363 chiAutomizerObserver]: Analyzing ICFG SpamAssassin-loop.i [2024-11-27 20:11:14,415 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 20:11:14,416 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 20:11:14,416 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 20:11:14,416 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 20:11:14,416 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 20:11:14,416 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 20:11:14,416 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 20:11:14,417 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 20:11:14,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 93 states, 92 states have (on average 1.423913043478261) internal successors, (131), 92 states have internal predecessors, (131), 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) [2024-11-27 20:11:14,445 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 86 [2024-11-27 20:11:14,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:11:14,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:11:14,452 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-27 20:11:14,453 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 20:11:14,453 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 20:11:14,453 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 93 states, 92 states have (on average 1.423913043478261) internal successors, (131), 92 states have internal predecessors, (131), 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) [2024-11-27 20:11:14,458 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 86 [2024-11-27 20:11:14,458 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:11:14,458 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:11:14,459 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-27 20:11:14,459 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-27 20:11:14,467 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_#t~post7#1, main_#t~post8#1, main_#t~post9#1, main_#t~post10#1, main_~len~0#1, main_~i~0#1, main_~j~0#1, main_~bufsize~0#1, main_~limit~0#1;havoc main_~len~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~bufsize~0#1;havoc main_#t~nondet1#1;main_~bufsize~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;" "assume !(main_~bufsize~0#1 < 0);havoc main_#t~nondet2#1;main_~len~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~limit~0#1 := main_~bufsize~0#1 - 4;main_~i~0#1 := 0;" [2024-11-27 20:11:14,468 INFO L749 eck$LassoCheckResult]: Loop: "assume main_~i~0#1 < main_~len~0#1;" "main_~j~0#1 := 0;" "assume !(main_~i~0#1 < main_~len~0#1 && main_~j~0#1 < main_~limit~0#1);" [2024-11-27 20:11:14,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:14,474 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2024-11-27 20:11:14,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:11:14,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947253859] [2024-11-27 20:11:14,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:11:14,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:11:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:11:14,602 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:11:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:11:14,641 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:11:14,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:14,646 INFO L85 PathProgramCache]: Analyzing trace with hash 42836, now seen corresponding path program 1 times [2024-11-27 20:11:14,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:11:14,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188679130] [2024-11-27 20:11:14,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:11:14,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:11:14,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:11:14,661 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:11:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:11:14,669 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:11:14,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:11:14,673 INFO L85 PathProgramCache]: Analyzing trace with hash 889572305, now seen corresponding path program 1 times [2024-11-27 20:11:14,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:11:14,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050240153] [2024-11-27 20:11:14,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:11:14,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:11:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:11:14,695 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:11:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:11:14,716 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:11:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:11:15,096 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:11:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:11:15,149 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 08:11:15 BoogieIcfgContainer [2024-11-27 20:11:15,151 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 20:11:15,170 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:11:15,170 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:11:15,171 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:11:15,171 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:11:14" (3/4) ... [2024-11-27 20:11:15,174 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-27 20:11:15,220 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72936ae5-d7b8-4249-9f58-252cd6fff7b7/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:11:15,221 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:11:15,223 INFO L158 Benchmark]: Toolchain (without parser) took 1938.24ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 89.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2024-11-27 20:11:15,227 INFO L158 Benchmark]: CDTParser took 0.84ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 72.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:11:15,228 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.27ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 81.1MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:11:15,228 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.92ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 79.5MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:11:15,228 INFO L158 Benchmark]: Boogie Preprocessor took 74.57ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 77.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:11:15,229 INFO L158 Benchmark]: RCFGBuilder took 571.18ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 62.1MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:11:15,229 INFO L158 Benchmark]: BuchiAutomizer took 816.62ms. Allocated memory is still 117.4MB. Free memory was 61.8MB in the beginning and 37.8MB in the end (delta: 24.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:11:15,230 INFO L158 Benchmark]: Witness Printer took 50.36ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 89.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:11:15,235 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.84ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 72.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.27ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 81.1MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.92ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 79.5MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.57ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 77.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 571.18ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 62.1MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 816.62ms. Allocated memory is still 117.4MB. Free memory was 61.8MB in the beginning and 37.8MB in the end (delta: 24.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 50.36ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 89.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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: 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! [2024-11-27 20:11:15,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72936ae5-d7b8-4249-9f58-252cd6fff7b7/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)