./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/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_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/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 64bit --witnessprinter.graph.data.programhash 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:18:06,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:18:07,054 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-21 22:18:07,069 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:18:07,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:18:07,114 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:18:07,115 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:18:07,116 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:18:07,117 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:18:07,122 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:18:07,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:18:07,123 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:18:07,124 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:18:07,127 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:18:07,128 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:18:07,128 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:18:07,128 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:18:07,129 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:18:07,130 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:18:07,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:18:07,131 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:18:07,131 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:18:07,132 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:18:07,132 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:18:07,132 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:18:07,133 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:18:07,133 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:18:07,134 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:18:07,134 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:18:07,135 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:18:07,136 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:18:07,136 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:18:07,137 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:18:07,137 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:18:07,138 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:18:07,138 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_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 [2023-11-21 22:18:07,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:18:07,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:18:07,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:18:07,509 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:18:07,510 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:18:07,512 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2023-11-21 22:18:10,663 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:18:10,945 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:18:10,946 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2023-11-21 22:18:10,955 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/bin/uautomizer-verify-bycVGegfSx/data/ec0d08bc0/27834ec8ca724a56b966c15d7fdaea38/FLAG9474c1542 [2023-11-21 22:18:10,973 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/bin/uautomizer-verify-bycVGegfSx/data/ec0d08bc0/27834ec8ca724a56b966c15d7fdaea38 [2023-11-21 22:18:10,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:18:10,977 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:18:10,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:18:10,979 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:18:10,986 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:18:10,987 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:10" (1/1) ... [2023-11-21 22:18:10,989 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@426dffd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:10, skipping insertion in model container [2023-11-21 22:18:10,989 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:10" (1/1) ... [2023-11-21 22:18:11,011 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:18:11,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:18:11,194 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:18:11,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:18:11,231 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:18:11,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:11 WrapperNode [2023-11-21 22:18:11,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:18:11,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:18:11,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:18:11,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:18:11,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:11" (1/1) ... [2023-11-21 22:18:11,250 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:11" (1/1) ... [2023-11-21 22:18:11,271 INFO L138 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-11-21 22:18:11,271 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:18:11,272 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:18:11,273 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:18:11,273 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:18:11,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:11" (1/1) ... [2023-11-21 22:18:11,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:11" (1/1) ... [2023-11-21 22:18:11,297 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:11" (1/1) ... [2023-11-21 22:18:11,307 INFO L187 HeapSplitter]: Split 5 memory accesses to 1 slices as follows [5] [2023-11-21 22:18:11,308 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:11" (1/1) ... [2023-11-21 22:18:11,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:11" (1/1) ... [2023-11-21 22:18:11,313 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:11" (1/1) ... [2023-11-21 22:18:11,316 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:11" (1/1) ... [2023-11-21 22:18:11,317 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:11" (1/1) ... [2023-11-21 22:18:11,318 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:11" (1/1) ... [2023-11-21 22:18:11,320 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:18:11,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:18:11,322 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:18:11,322 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:18:11,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:11" (1/1) ... [2023-11-21 22:18:11,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:18:11,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:18:11,363 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:18:11,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:18:11,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:18:11,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:18:11,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:18:11,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:18:11,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:18:11,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:18:11,470 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:18:11,473 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:18:11,594 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:18:11,603 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:18:11,604 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:18:11,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:11 BoogieIcfgContainer [2023-11-21 22:18:11,606 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:18:11,607 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:18:11,607 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:18:11,612 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:18:11,613 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:18:11,613 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:18:10" (1/3) ... [2023-11-21 22:18:11,615 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5900cde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:18:11, skipping insertion in model container [2023-11-21 22:18:11,615 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:18:11,615 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:11" (2/3) ... [2023-11-21 22:18:11,616 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5900cde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:18:11, skipping insertion in model container [2023-11-21 22:18:11,616 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:18:11,616 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:11" (3/3) ... [2023-11-21 22:18:11,618 INFO L332 chiAutomizerObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2023-11-21 22:18:11,684 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:18:11,684 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:18:11,684 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:18:11,684 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:18:11,685 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:18:11,685 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:18:11,685 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:18:11,685 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:18:11,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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 22:18:11,710 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:18:11,711 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:18:11,711 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:18:11,717 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:18:11,718 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:18:11,718 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:18:11,719 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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 22:18:11,720 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:18:11,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:18:11,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:18:11,721 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:18:11,721 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:18:11,730 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~mem2#1, main_#t~nondet3#1, main_#t~mem1#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);havoc main_#t~nondet0#1;call write~int#0(main_#t~nondet0#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet0#1; 6#L13-3true [2023-11-21 22:18:11,731 INFO L750 eck$LassoCheckResult]: Loop: 6#L13-3true call main_#t~mem1#1 := read~int#0(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4); 3#L13-1true assume !!(main_#t~mem1#1 >= 0);havoc main_#t~mem1#1;call main_#t~mem2#1 := read~int#0(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);call write~int#0(main_#t~mem2#1 - 1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~mem2#1;havoc main_#t~nondet3#1;call write~int#0(main_#t~nondet3#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet3#1; 6#L13-3true [2023-11-21 22:18:11,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:11,738 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-21 22:18:11,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:11,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235612383] [2023-11-21 22:18:11,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:11,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:18:11,908 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:18:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:18:11,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:18:11,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:11,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2023-11-21 22:18:11,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:11,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215814261] [2023-11-21 22:18:11,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:11,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:18:12,003 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:18:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:18:12,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:18:12,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:18:12,020 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2023-11-21 22:18:12,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:18:12,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117591709] [2023-11-21 22:18:12,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:18:12,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:18:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:18:12,057 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:18:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:18:12,090 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:18:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:18:12,373 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:18:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:18:12,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 10:18:12 BoogieIcfgContainer [2023-11-21 22:18:12,399 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 22:18:12,400 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:18:12,415 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:18:12,415 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:18:12,416 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:11" (3/4) ... [2023-11-21 22:18:12,418 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-21 22:18:12,454 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:18:12,454 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:18:12,456 INFO L158 Benchmark]: Toolchain (without parser) took 1477.69ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 107.1MB in the beginning and 157.0MB in the end (delta: -50.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:18:12,456 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 148.9MB. Free memory is still 96.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:18:12,457 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.94ms. Allocated memory is still 148.9MB. Free memory was 106.7MB in the beginning and 97.2MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:18:12,458 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.85ms. Allocated memory is still 148.9MB. Free memory was 97.2MB in the beginning and 95.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:18:12,459 INFO L158 Benchmark]: Boogie Preprocessor took 48.32ms. Allocated memory is still 148.9MB. Free memory was 95.9MB in the beginning and 94.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:18:12,460 INFO L158 Benchmark]: RCFGBuilder took 284.68ms. Allocated memory is still 148.9MB. Free memory was 94.0MB in the beginning and 84.6MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:18:12,461 INFO L158 Benchmark]: BuchiAutomizer took 792.35ms. Allocated memory is still 148.9MB. Free memory was 84.2MB in the beginning and 117.7MB in the end (delta: -33.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:18:12,462 INFO L158 Benchmark]: Witness Printer took 53.88ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 117.7MB in the beginning and 157.0MB in the end (delta: -39.4MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2023-11-21 22:18:12,466 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 148.9MB. Free memory is still 96.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.94ms. Allocated memory is still 148.9MB. Free memory was 106.7MB in the beginning and 97.2MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.85ms. Allocated memory is still 148.9MB. Free memory was 97.2MB in the beginning and 95.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.32ms. Allocated memory is still 148.9MB. Free memory was 95.9MB in the beginning and 94.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 284.68ms. Allocated memory is still 148.9MB. Free memory was 94.0MB in the beginning and 84.6MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 792.35ms. Allocated memory is still 148.9MB. Free memory was 84.2MB in the beginning and 117.7MB in the end (delta: -33.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 53.88ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 117.7MB in the beginning and 157.0MB in the end (delta: -39.4MB). Peak memory consumption was 2.6MB. 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: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L9] int a[1048]; [L11] a[2] = __VERIFIER_nondet_int() Loop: [L13] EXPR a[2] [L13] COND TRUE a[2] >= 0 [L14] EXPR a[2] [L14] a[2] = a[2] - 1 [L15] a[1+1] = __VERIFIER_nondet_int() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L9] int a[1048]; [L11] a[2] = __VERIFIER_nondet_int() Loop: [L13] EXPR a[2] [L13] COND TRUE a[2] >= 0 [L14] EXPR a[2] [L14] a[2] = a[2] - 1 [L15] a[1+1] = __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-21 22:18:12,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a1f1724-ce47-4ce6-824f-18bb37b2ab18/bin/uautomizer-verify-bycVGegfSx/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)