./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu --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 0.2.3-dev-9bd2c7f [2023-11-19 08:01:29,316 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:01:29,438 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 08:01:29,445 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:01:29,446 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:01:29,485 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:01:29,486 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:01:29,487 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:01:29,488 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:01:29,493 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:01:29,494 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:01:29,494 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 08:01:29,495 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 08:01:29,497 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 08:01:29,497 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 08:01:29,498 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 08:01:29,498 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 08:01:29,499 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:01:29,500 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 08:01:29,500 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:01:29,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:01:29,508 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:01:29,509 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:01:29,509 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 08:01:29,509 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 08:01:29,510 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 08:01:29,510 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:01:29,511 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:01:29,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:01:29,512 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 08:01:29,513 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:01:29,513 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:01:29,513 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:01:29,514 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:01:29,514 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:01:29,515 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 08:01:29,515 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ad27fb086e75bf8f5b08286d8e766d07abfe44ff39234568924cf55ade7a6d5 [2023-11-19 08:01:29,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:01:29,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:01:29,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:01:29,810 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:01:29,811 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:01:29,812 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2023-11-19 08:01:32,985 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:01:33,298 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:01:33,299 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2023-11-19 08:01:33,310 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu/data/96637c7c5/00c0e4e81cf0492e8a1dd9daf6b069d4/FLAG7e459ac9c [2023-11-19 08:01:33,327 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu/data/96637c7c5/00c0e4e81cf0492e8a1dd9daf6b069d4 [2023-11-19 08:01:33,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:01:33,333 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:01:33,335 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:33,335 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:01:33,343 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:01:33,344 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:33" (1/1) ... [2023-11-19 08:01:33,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15b4664b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:33, skipping insertion in model container [2023-11-19 08:01:33,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:33" (1/1) ... [2023-11-19 08:01:33,381 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:01:33,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:33,602 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:01:33,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:01:33,675 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:01:33,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:33 WrapperNode [2023-11-19 08:01:33,676 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:01:33,678 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:33,678 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:01:33,678 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:01:33,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:33" (1/1) ... [2023-11-19 08:01:33,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:33" (1/1) ... [2023-11-19 08:01:33,744 INFO L138 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 19, calls inlined = 34, statements flattened = 222 [2023-11-19 08:01:33,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:01:33,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:01:33,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:01:33,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:01:33,755 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:33" (1/1) ... [2023-11-19 08:01:33,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:33" (1/1) ... [2023-11-19 08:01:33,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:33" (1/1) ... [2023-11-19 08:01:33,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:33" (1/1) ... [2023-11-19 08:01:33,766 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:33" (1/1) ... [2023-11-19 08:01:33,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:33" (1/1) ... [2023-11-19 08:01:33,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:33" (1/1) ... [2023-11-19 08:01:33,775 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:33" (1/1) ... [2023-11-19 08:01:33,779 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:01:33,780 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:01:33,780 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:01:33,780 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:01:33,781 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:33" (1/1) ... [2023-11-19 08:01:33,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:01:33,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:01:33,825 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:01:33,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 08:01:33,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:01:33,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:01:33,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:01:33,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:01:33,935 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:01:33,937 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:01:34,259 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:01:34,269 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:01:34,270 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:01:34,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:34 BoogieIcfgContainer [2023-11-19 08:01:34,285 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:01:34,286 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 08:01:34,287 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 08:01:34,291 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 08:01:34,292 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:01:34,292 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:01:33" (1/3) ... [2023-11-19 08:01:34,293 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54a65f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:01:34, skipping insertion in model container [2023-11-19 08:01:34,293 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:01:34,293 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:33" (2/3) ... [2023-11-19 08:01:34,294 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54a65f13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:01:34, skipping insertion in model container [2023-11-19 08:01:34,294 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:01:34,294 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:34" (3/3) ... [2023-11-19 08:01:34,295 INFO L332 chiAutomizerObserver]: Analyzing ICFG SpamAssassin-loop.i [2023-11-19 08:01:34,360 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 08:01:34,360 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 08:01:34,360 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 08:01:34,360 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 08:01:34,360 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 08:01:34,361 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 08:01:34,361 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 08:01:34,361 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 08:01:34,366 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) [2023-11-19 08:01:34,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 85 [2023-11-19 08:01:34,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:01:34,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:01:34,409 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-19 08:01:34,409 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 08:01:34,410 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 08:01:34,412 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) [2023-11-19 08:01:34,420 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 85 [2023-11-19 08:01:34,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:01:34,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:01:34,421 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-19 08:01:34,421 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-19 08:01:34,428 INFO L748 eck$LassoCheckResult]: Stem: 46#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 58#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_#t~post7#1, main_#t~post8#1, main_#t~post9#1, main_#t~post10#1, main_~len~0#1, main_~i~0#1, main_~j~0#1, main_~bufsize~0#1, main_~limit~0#1;havoc main_~len~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~bufsize~0#1;havoc main_#t~nondet1#1;main_~bufsize~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 10#L31true assume !(main_~bufsize~0#1 < 0);havoc main_#t~nondet2#1;main_~len~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~limit~0#1 := main_~bufsize~0#1 - 4;main_~i~0#1 := 0; 59#L34-2true [2023-11-19 08:01:34,428 INFO L750 eck$LassoCheckResult]: Loop: 59#L34-2true assume !!(main_~i~0#1 < main_~len~0#1);main_~j~0#1 := 0; 23#L35-2true assume !(main_~i~0#1 < main_~len~0#1 && main_~j~0#1 < main_~limit~0#1); 59#L34-2true [2023-11-19 08:01:34,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:34,434 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2023-11-19 08:01:34,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:34,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916445631] [2023-11-19 08:01:34,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:34,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:34,537 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:01:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:34,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:01:34,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:34,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1447, now seen corresponding path program 1 times [2023-11-19 08:01:34,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:34,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420014449] [2023-11-19 08:01:34,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:34,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:34,596 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:01:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:34,610 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:01:34,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:01:34,612 INFO L85 PathProgramCache]: Analyzing trace with hash 28695946, now seen corresponding path program 1 times [2023-11-19 08:01:34,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:01:34,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084926945] [2023-11-19 08:01:34,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:01:34,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:01:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:34,630 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:01:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:34,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:01:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:34,966 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:01:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:01:35,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:01:35 BoogieIcfgContainer [2023-11-19 08:01:35,002 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 08:01:35,003 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:01:35,003 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:01:35,003 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:01:35,004 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:34" (3/4) ... [2023-11-19 08:01:35,005 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-19 08:01:35,045 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:01:35,045 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:01:35,047 INFO L158 Benchmark]: Toolchain (without parser) took 1713.44ms. Allocated memory was 146.8MB in the beginning and 192.9MB in the end (delta: 46.1MB). Free memory was 99.2MB in the beginning and 132.5MB in the end (delta: -33.4MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2023-11-19 08:01:35,048 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 146.8MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:01:35,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.63ms. Allocated memory is still 146.8MB. Free memory was 99.2MB in the beginning and 88.2MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 08:01:35,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.96ms. Allocated memory is still 146.8MB. Free memory was 88.2MB in the beginning and 86.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:01:35,050 INFO L158 Benchmark]: Boogie Preprocessor took 33.83ms. Allocated memory is still 146.8MB. Free memory was 86.2MB in the beginning and 84.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:01:35,051 INFO L158 Benchmark]: RCFGBuilder took 505.47ms. Allocated memory was 146.8MB in the beginning and 192.9MB in the end (delta: 46.1MB). Free memory was 84.5MB in the beginning and 161.8MB in the end (delta: -77.3MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2023-11-19 08:01:35,051 INFO L158 Benchmark]: BuchiAutomizer took 716.21ms. Allocated memory is still 192.9MB. Free memory was 161.8MB in the beginning and 134.6MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-19 08:01:35,052 INFO L158 Benchmark]: Witness Printer took 42.24ms. Allocated memory is still 192.9MB. Free memory was 134.6MB in the beginning and 132.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:01:35,056 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 146.8MB. Free memory is still 89.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.63ms. Allocated memory is still 146.8MB. Free memory was 99.2MB in the beginning and 88.2MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.96ms. Allocated memory is still 146.8MB. Free memory was 88.2MB in the beginning and 86.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.83ms. Allocated memory is still 146.8MB. Free memory was 86.2MB in the beginning and 84.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 505.47ms. Allocated memory was 146.8MB in the beginning and 192.9MB in the end (delta: 46.1MB). Free memory was 84.5MB in the beginning and 161.8MB in the end (delta: -77.3MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 716.21ms. Allocated memory is still 192.9MB. Free memory was 161.8MB in the beginning and 134.6MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 42.24ms. Allocated memory is still 192.9MB. Free memory was 134.6MB in the beginning and 132.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 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=4, i=0, limit=0] 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=4, i=0, limit=0] 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! [2023-11-19 08:01:35,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79c5758f-1c56-4d65-88af-37bd9c1dac80/bin/uautomizer-verify-uCwYo4JHxu/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)