./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/bitvector/jain_4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 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_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/bitvector/jain_4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx --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 1cbac86a7d2d3b0f5135f8cc4b9786f5bd2e458e412a649884fa942dedde8dfa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:01:54,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:01:54,213 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 21:01:54,221 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:01:54,222 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:01:54,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:01:54,262 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:01:54,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:01:54,263 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:01:54,264 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:01:54,265 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:01:54,265 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:01:54,266 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:01:54,266 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 21:01:54,267 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 21:01:54,267 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 21:01:54,268 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 21:01:54,269 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 21:01:54,269 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 21:01:54,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:01:54,270 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 21:01:54,271 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:01:54,272 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:01:54,272 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:01:54,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:01:54,273 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 21:01:54,274 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 21:01:54,275 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 21:01:54,275 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:01:54,276 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:01:54,276 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:01:54,277 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 21:01:54,277 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:01:54,278 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:01:54,279 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:01:54,279 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:01:54,280 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:01:54,281 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 21:01:54,281 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_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cbac86a7d2d3b0f5135f8cc4b9786f5bd2e458e412a649884fa942dedde8dfa [2023-11-21 21:01:54,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:01:54,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:01:54,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:01:54,584 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:01:54,585 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:01:54,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/bitvector/jain_4-2.c [2023-11-21 21:01:57,642 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:01:57,858 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:01:57,859 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3077a8b8-a651-47ea-8c2d-c4796c627a88/sv-benchmarks/c/bitvector/jain_4-2.c [2023-11-21 21:01:57,867 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx/data/9b9af0c84/696baf90c69b4d279026ee2e069d1bea/FLAGd8f7da0f1 [2023-11-21 21:01:57,888 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx/data/9b9af0c84/696baf90c69b4d279026ee2e069d1bea [2023-11-21 21:01:57,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:01:57,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:01:57,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:01:57,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:01:57,906 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:01:57,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:01:57" (1/1) ... [2023-11-21 21:01:57,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5975c89a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:57, skipping insertion in model container [2023-11-21 21:01:57,908 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:01:57" (1/1) ... [2023-11-21 21:01:57,934 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:01:58,119 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:01:58,131 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:01:58,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:01:58,159 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:01:58,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:58 WrapperNode [2023-11-21 21:01:58,160 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:01:58,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:01:58,161 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:01:58,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:01:58,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:58" (1/1) ... [2023-11-21 21:01:58,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:58" (1/1) ... [2023-11-21 21:01:58,200 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 38 [2023-11-21 21:01:58,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:01:58,202 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:01:58,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:01:58,204 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:01:58,216 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:58" (1/1) ... [2023-11-21 21:01:58,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:58" (1/1) ... [2023-11-21 21:01:58,219 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:58" (1/1) ... [2023-11-21 21:01:58,228 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 21:01:58,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:58" (1/1) ... [2023-11-21 21:01:58,229 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:58" (1/1) ... [2023-11-21 21:01:58,232 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:58" (1/1) ... [2023-11-21 21:01:58,246 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:58" (1/1) ... [2023-11-21 21:01:58,255 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:58" (1/1) ... [2023-11-21 21:01:58,256 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:58" (1/1) ... [2023-11-21 21:01:58,258 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:01:58,259 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:01:58,259 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:01:58,259 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:01:58,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:58" (1/1) ... [2023-11-21 21:01:58,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 21:01:58,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:01:58,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 21:01:58,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 21:01:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:01:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:01:58,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:01:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 21:01:58,404 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:01:58,406 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:01:58,520 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:01:58,530 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:01:58,533 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 21:01:58,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:01:58 BoogieIcfgContainer [2023-11-21 21:01:58,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:01:58,537 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 21:01:58,537 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 21:01:58,542 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 21:01:58,542 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:01:58,543 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 09:01:57" (1/3) ... [2023-11-21 21:01:58,544 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@318697bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:01:58, skipping insertion in model container [2023-11-21 21:01:58,544 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:01:58,544 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:01:58" (2/3) ... [2023-11-21 21:01:58,545 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@318697bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:01:58, skipping insertion in model container [2023-11-21 21:01:58,545 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 21:01:58,545 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:01:58" (3/3) ... [2023-11-21 21:01:58,547 INFO L332 chiAutomizerObserver]: Analyzing ICFG jain_4-2.c [2023-11-21 21:01:58,598 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 21:01:58,598 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 21:01:58,598 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 21:01:58,599 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 21:01:58,599 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 21:01:58,599 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 21:01:58,599 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 21:01:58,600 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 21:01:58,604 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2023-11-21 21:01:58,622 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-21 21:01:58,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:01:58,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:01:58,628 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 21:01:58,628 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 21:01:58,628 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 21:01:58,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2023-11-21 21:01:58,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-11-21 21:01:58,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 21:01:58,630 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 21:01:58,631 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 21:01:58,631 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-21 21:01:58,637 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := 0;main_~y~0#1 := 0;main_~z~0#1 := 0; 7#L28-2true [2023-11-21 21:01:58,638 INFO L750 eck$LassoCheckResult]: Loop: 7#L28-2true assume !false;havoc main_#t~nondet4#1;main_~x~0#1 := main_~x~0#1 + 4 * main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 + 4 * main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_#t~nondet6#1;main_~z~0#1 := main_~z~0#1 + 8 * main_#t~nondet6#1;havoc main_#t~nondet6#1;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 1 != (main_~x~0#1 + main_~y~0#1 + main_~z~0#1) % 4294967296 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 6#L15true assume !(0 == __VERIFIER_assert_~cond#1); 11#L15-2true havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; 7#L28-2true [2023-11-21 21:01:58,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:58,645 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-21 21:01:58,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:58,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995488842] [2023-11-21 21:01:58,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:58,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:01:58,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:01:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:01:58,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:01:58,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:58,794 INFO L85 PathProgramCache]: Analyzing trace with hash 41005, now seen corresponding path program 1 times [2023-11-21 21:01:58,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:58,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438856911] [2023-11-21 21:01:58,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:58,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:01:58,829 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:01:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:01:58,841 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:01:58,843 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:01:58,843 INFO L85 PathProgramCache]: Analyzing trace with hash 28699947, now seen corresponding path program 1 times [2023-11-21 21:01:58,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:01:58,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136230187] [2023-11-21 21:01:58,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:01:58,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:01:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:01:58,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:01:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:01:58,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:01:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:01:59,367 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:01:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:01:59,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 09:01:59 BoogieIcfgContainer [2023-11-21 21:01:59,400 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 21:01:59,401 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:01:59,401 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:01:59,402 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:01:59,402 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:01:58" (3/4) ... [2023-11-21 21:01:59,404 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-21 21:01:59,463 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 21:01:59,463 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:01:59,465 INFO L158 Benchmark]: Toolchain (without parser) took 1565.63ms. Allocated memory was 163.6MB in the beginning and 255.9MB in the end (delta: 92.3MB). Free memory was 117.0MB in the beginning and 210.8MB in the end (delta: -93.8MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2023-11-21 21:01:59,465 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 163.6MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:01:59,466 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.92ms. Allocated memory is still 163.6MB. Free memory was 116.7MB in the beginning and 107.0MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 21:01:59,466 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.62ms. Allocated memory is still 163.6MB. Free memory was 106.8MB in the beginning and 105.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:01:59,467 INFO L158 Benchmark]: Boogie Preprocessor took 55.86ms. Allocated memory is still 163.6MB. Free memory was 105.4MB in the beginning and 103.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:01:59,467 INFO L158 Benchmark]: RCFGBuilder took 276.35ms. Allocated memory is still 163.6MB. Free memory was 103.9MB in the beginning and 94.5MB in the end (delta: 9.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 21:01:59,468 INFO L158 Benchmark]: BuchiAutomizer took 863.32ms. Allocated memory was 163.6MB in the beginning and 255.9MB in the end (delta: 92.3MB). Free memory was 94.2MB in the beginning and 211.8MB in the end (delta: -117.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:01:59,468 INFO L158 Benchmark]: Witness Printer took 62.14ms. Allocated memory is still 255.9MB. Free memory was 211.8MB in the beginning and 210.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:01:59,478 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 163.6MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.92ms. Allocated memory is still 163.6MB. Free memory was 116.7MB in the beginning and 107.0MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.62ms. Allocated memory is still 163.6MB. Free memory was 106.8MB in the beginning and 105.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.86ms. Allocated memory is still 163.6MB. Free memory was 105.4MB in the beginning and 103.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 276.35ms. Allocated memory is still 163.6MB. Free memory was 103.9MB in the beginning and 94.5MB in the end (delta: 9.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 863.32ms. Allocated memory was 163.6MB in the beginning and 255.9MB in the end (delta: 92.3MB). Free memory was 94.2MB in the beginning and 211.8MB in the end (delta: -117.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.14ms. Allocated memory is still 255.9MB. Free memory was 211.8MB in the beginning and 210.8MB in the end (delta: 1.1MB). 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 0.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L22] unsigned int x,y,z; [L24] x=0U [L25] y=0U [L26] z=0U VAL [x=0, y=0, z=0] Loop: [L28] COND TRUE 1 [L30] x = x +4U*__VERIFIER_nondet_uint() [L31] y = y +4U*__VERIFIER_nondet_uint() [L32] z = z +8U*__VERIFIER_nondet_uint() [L34] CALL __VERIFIER_assert(x+y+z!=1U) [L15] COND FALSE !(!(cond)) [L34] RET __VERIFIER_assert(x+y+z!=1U) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L22] unsigned int x,y,z; [L24] x=0U [L25] y=0U [L26] z=0U VAL [x=0, y=0, z=0] Loop: [L28] COND TRUE 1 [L30] x = x +4U*__VERIFIER_nondet_uint() [L31] y = y +4U*__VERIFIER_nondet_uint() [L32] z = z +8U*__VERIFIER_nondet_uint() [L34] CALL __VERIFIER_assert(x+y+z!=1U) [L15] COND FALSE !(!(cond)) [L34] RET __VERIFIER_assert(x+y+z!=1U) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 21:01:59,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3077a8b8-a651-47ea-8c2d-c4796c627a88/bin/uautomizer-verify-bycVGegfSx/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)