./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --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 0.2.1-dev-0f8a17c [2021-11-19 04:31:27,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:31:27,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:31:27,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:31:27,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:31:27,193 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:31:27,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:31:27,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:31:27,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:31:27,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:31:27,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:31:27,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:31:27,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:31:27,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:31:27,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:31:27,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:31:27,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:31:27,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:31:27,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:31:27,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:31:27,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:31:27,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:31:27,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:31:27,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:31:27,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:31:27,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:31:27,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:31:27,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:31:27,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:31:27,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:31:27,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:31:27,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:31:27,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:31:27,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:31:27,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:31:27,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:31:27,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:31:27,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:31:27,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:31:27,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:31:27,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:31:27,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-19 04:31:27,349 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:31:27,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:31:27,351 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:31:27,351 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:31:27,353 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:31:27,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:31:27,353 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:31:27,354 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-19 04:31:27,354 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-19 04:31:27,354 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-19 04:31:27,356 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-19 04:31:27,356 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-19 04:31:27,357 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-19 04:31:27,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:31:27,357 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:31:27,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:31:27,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:31:27,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-19 04:31:27,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-19 04:31:27,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-19 04:31:27,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:31:27,359 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-19 04:31:27,359 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:31:27,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-19 04:31:27,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:31:27,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:31:27,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:31:27,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:31:27,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:31:27,364 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-19 04:31:27,365 INFO L138 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_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 [2021-11-19 04:31:27,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:31:27,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:31:27,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:31:27,712 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:31:27,713 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:31:27,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2021-11-19 04:31:27,846 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL/data/8d8d4d486/9a945f8497d74b629013bf00a50aa767/FLAG2b0d9b6e9 [2021-11-19 04:31:28,368 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:31:28,368 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2021-11-19 04:31:28,376 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL/data/8d8d4d486/9a945f8497d74b629013bf00a50aa767/FLAG2b0d9b6e9 [2021-11-19 04:31:28,768 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL/data/8d8d4d486/9a945f8497d74b629013bf00a50aa767 [2021-11-19 04:31:28,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:31:28,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:31:28,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:31:28,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:31:28,783 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:31:28,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:31:28" (1/1) ... [2021-11-19 04:31:28,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b6b4b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:28, skipping insertion in model container [2021-11-19 04:31:28,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:31:28" (1/1) ... [2021-11-19 04:31:28,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:31:28,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:31:28,992 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:31:29,003 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:31:29,022 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:31:29,042 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:31:29,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:29 WrapperNode [2021-11-19 04:31:29,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:31:29,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:31:29,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:31:29,045 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:31:29,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:29" (1/1) ... [2021-11-19 04:31:29,062 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:29" (1/1) ... [2021-11-19 04:31:29,083 INFO L137 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2021-11-19 04:31:29,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:31:29,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:31:29,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:31:29,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:31:29,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:29" (1/1) ... [2021-11-19 04:31:29,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:29" (1/1) ... [2021-11-19 04:31:29,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:29" (1/1) ... [2021-11-19 04:31:29,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:29" (1/1) ... [2021-11-19 04:31:29,103 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:29" (1/1) ... [2021-11-19 04:31:29,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:29" (1/1) ... [2021-11-19 04:31:29,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:29" (1/1) ... [2021-11-19 04:31:29,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:31:29,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:31:29,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:31:29,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:31:29,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:29" (1/1) ... [2021-11-19 04:31:29,123 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:31:29,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:31:29,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:31:29,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-19 04:31:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 04:31:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:31:29,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:31:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 04:31:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 04:31:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 04:31:29,332 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:31:29,335 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:31:29,482 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:31:29,489 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:31:29,489 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 04:31:29,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:31:29 BoogieIcfgContainer [2021-11-19 04:31:29,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:31:29,493 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-19 04:31:29,493 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-19 04:31:29,497 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-19 04:31:29,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:31:29,499 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 04:31:28" (1/3) ... [2021-11-19 04:31:29,501 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65b78fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:31:29, skipping insertion in model container [2021-11-19 04:31:29,501 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:31:29,501 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:31:29" (2/3) ... [2021-11-19 04:31:29,502 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65b78fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:31:29, skipping insertion in model container [2021-11-19 04:31:29,502 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:31:29,502 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:31:29" (3/3) ... [2021-11-19 04:31:29,504 INFO L388 chiAutomizerObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2021-11-19 04:31:29,583 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-19 04:31:29,583 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-19 04:31:29,584 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-19 04:31:29,584 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-19 04:31:29,584 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-19 04:31:29,584 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-19 04:31:29,584 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-19 04:31:29,584 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-19 04:31:29,603 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) [2021-11-19 04:31:29,631 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-19 04:31:29,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:31:29,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:31:29,637 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-19 04:31:29,637 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-19 04:31:29,638 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-19 04:31:29,638 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) [2021-11-19 04:31:29,639 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-19 04:31:29,639 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:31:29,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:31:29,639 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-19 04:31:29,639 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-19 04:31:29,647 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#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);call write~int(main_#t~nondet0#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet0#1; 7#L13-3true [2021-11-19 04:31:29,647 INFO L793 eck$LassoCheckResult]: Loop: 7#L13-3true call main_#t~mem1#1 := read~int(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4); 4#L13-1true assume !!(main_#t~mem1#1 >= 0);havoc main_#t~mem1#1;call main_#t~mem2#1 := read~int(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);call write~int(main_#t~mem2#1 - 1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~mem2#1;call write~int(main_#t~nondet3#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet3#1; 7#L13-3true [2021-11-19 04:31:29,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:31:29,654 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-19 04:31:29,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:31:29,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021442608] [2021-11-19 04:31:29,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:31:29,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:31:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:31:29,772 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:31:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:31:29,809 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:31:29,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:31:29,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2021-11-19 04:31:29,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:31:29,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075264183] [2021-11-19 04:31:29,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:31:29,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:31:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:31:29,824 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:31:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:31:29,833 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:31:29,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:31:29,836 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-11-19 04:31:29,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:31:29,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766904565] [2021-11-19 04:31:29,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:31:29,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:31:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:31:29,852 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:31:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:31:29,869 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:31:30,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 04:31:30 BoogieIcfgContainer [2021-11-19 04:31:30,268 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-19 04:31:30,269 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:31:30,269 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:31:30,269 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:31:30,270 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:31:29" (3/4) ... [2021-11-19 04:31:30,273 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-19 04:31:30,312 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 04:31:30,312 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:31:30,314 INFO L158 Benchmark]: Toolchain (without parser) took 1536.58ms. Allocated memory is still 100.7MB. Free memory was 67.3MB in the beginning and 41.4MB in the end (delta: 25.9MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2021-11-19 04:31:30,315 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory was 71.7MB in the beginning and 71.7MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:31:30,316 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.44ms. Allocated memory is still 100.7MB. Free memory was 67.3MB in the beginning and 79.0MB in the end (delta: -11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 04:31:30,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.36ms. Allocated memory is still 100.7MB. Free memory was 79.0MB in the beginning and 77.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:31:30,318 INFO L158 Benchmark]: Boogie Preprocessor took 26.15ms. Allocated memory is still 100.7MB. Free memory was 77.6MB in the beginning and 76.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:31:30,319 INFO L158 Benchmark]: RCFGBuilder took 380.40ms. Allocated memory is still 100.7MB. Free memory was 76.6MB in the beginning and 67.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 04:31:30,320 INFO L158 Benchmark]: BuchiAutomizer took 775.16ms. Allocated memory is still 100.7MB. Free memory was 67.7MB in the beginning and 43.0MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-19 04:31:30,321 INFO L158 Benchmark]: Witness Printer took 43.07ms. Allocated memory is still 100.7MB. Free memory was 43.0MB in the beginning and 41.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:31:30,343 INFO L339 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 100.7MB. Free memory was 71.7MB in the beginning and 71.7MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.44ms. Allocated memory is still 100.7MB. Free memory was 67.3MB in the beginning and 79.0MB in the end (delta: -11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.36ms. Allocated memory is still 100.7MB. Free memory was 79.0MB in the beginning and 77.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.15ms. Allocated memory is still 100.7MB. Free memory was 77.6MB in the beginning and 76.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 380.40ms. Allocated memory is still 100.7MB. Free memory was 76.6MB in the beginning and 67.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 775.16ms. Allocated memory is still 100.7MB. Free memory was 67.7MB in the beginning and 43.0MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 43.07ms. Allocated memory is still 100.7MB. Free memory was 43.0MB in the beginning and 41.4MB in the end (delta: 1.6MB). 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 0.6s. 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 - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@48253565=0, NULL=0, NULL=0, a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@71fccf2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fb8682b=840, NULL=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b8357cf=0, a=2} - 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! [2021-11-19 04:31:30,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f668c6ba-3615-4faf-b738-5a7a235f991e/bin/uautomizer-ZXIjhQolGL/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)