./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8dc85820-58a0-4220-a460-5a05bc354855/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8dc85820-58a0-4220-a460-5a05bc354855/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8dc85820-58a0-4220-a460-5a05bc354855/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8dc85820-58a0-4220-a460-5a05bc354855/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8dc85820-58a0-4220-a460-5a05bc354855/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8dc85820-58a0-4220-a460-5a05bc354855/bin/uautomizer --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 072df04afae5ae28487e0b8208c52f13961dea34 .................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:14:08,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:14:08,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:14:08,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:14:08,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:14:08,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:14:08,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:14:08,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:14:08,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:14:08,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:14:08,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:14:08,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:14:08,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:14:08,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:14:08,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:14:08,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:14:08,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:14:08,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:14:08,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:14:08,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:14:08,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:14:08,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:14:08,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:14:08,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:14:08,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:14:08,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:14:08,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:14:08,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:14:08,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:14:08,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:14:08,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:14:08,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:14:08,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:14:08,313 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:14:08,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:14:08,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:14:08,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:14:08,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:14:08,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:14:08,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:14:08,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:14:08,321 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8dc85820-58a0-4220-a460-5a05bc354855/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 23:14:08,373 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:14:08,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:14:08,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:14:08,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:14:08,376 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:14:08,376 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:14:08,377 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:14:08,377 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:14:08,377 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:14:08,377 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:14:08,379 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:14:08,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:14:08,379 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:14:08,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:14:08,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:14:08,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:14:08,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:14:08,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:14:08,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:14:08,381 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:14:08,381 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:14:08,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:14:08,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:14:08,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:14:08,382 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:14:08,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:14:08,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:14:08,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:14:08,383 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:14:08,387 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:14:08,387 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-vcloud-master/worker/run_dir_8dc85820-58a0-4220-a460-5a05bc354855/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8dc85820-58a0-4220-a460-5a05bc354855/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 072df04afae5ae28487e0b8208c52f13961dea34 [2020-11-29 23:14:08,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:14:08,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:14:08,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:14:08,757 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:14:08,758 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:14:08,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8dc85820-58a0-4220-a460-5a05bc354855/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2020-11-29 23:14:08,847 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8dc85820-58a0-4220-a460-5a05bc354855/bin/uautomizer/data/5cc66e844/098b273a1c3a4cc2afb2b30c90cc3e27/FLAG897d1a6ad [2020-11-29 23:14:09,384 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:14:09,384 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8dc85820-58a0-4220-a460-5a05bc354855/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2020-11-29 23:14:09,394 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8dc85820-58a0-4220-a460-5a05bc354855/bin/uautomizer/data/5cc66e844/098b273a1c3a4cc2afb2b30c90cc3e27/FLAG897d1a6ad [2020-11-29 23:14:09,769 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8dc85820-58a0-4220-a460-5a05bc354855/bin/uautomizer/data/5cc66e844/098b273a1c3a4cc2afb2b30c90cc3e27 [2020-11-29 23:14:09,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:14:09,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:14:09,774 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:14:09,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:14:09,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:14:09,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:14:09" (1/1) ... [2020-11-29 23:14:09,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76547149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:14:09, skipping insertion in model container [2020-11-29 23:14:09,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:14:09" (1/1) ... [2020-11-29 23:14:09,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:14:09,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:14:10,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:14:10,057 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:14:10,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:14:10,098 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:14:10,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:14:10 WrapperNode [2020-11-29 23:14:10,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:14:10,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:14:10,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:14:10,101 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:14:10,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:14:10" (1/1) ... [2020-11-29 23:14:10,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:14:10" (1/1) ... [2020-11-29 23:14:10,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:14:10,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:14:10,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:14:10,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:14:10,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:14:10" (1/1) ... [2020-11-29 23:14:10,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:14:10" (1/1) ... [2020-11-29 23:14:10,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:14:10" (1/1) ... [2020-11-29 23:14:10,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:14:10" (1/1) ... [2020-11-29 23:14:10,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:14:10" (1/1) ... [2020-11-29 23:14:10,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:14:10" (1/1) ... [2020-11-29 23:14:10,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:14:10" (1/1) ... [2020-11-29 23:14:10,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:14:10,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:14:10,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:14:10,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:14:10,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:14:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dc85820-58a0-4220-a460-5a05bc354855/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:14:10,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:14:10,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:14:10,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:14:10,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:14:10,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:14:10,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:14:10,543 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:14:10,543 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 23:14:10,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:14:10 BoogieIcfgContainer [2020-11-29 23:14:10,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:14:10,547 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:14:10,547 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:14:10,553 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:14:10,554 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:14:10,554 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:14:09" (1/3) ... [2020-11-29 23:14:10,559 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a59406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:14:10, skipping insertion in model container [2020-11-29 23:14:10,559 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:14:10,560 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:14:10" (2/3) ... [2020-11-29 23:14:10,560 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a59406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:14:10, skipping insertion in model container [2020-11-29 23:14:10,560 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:14:10,560 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:14:10" (3/3) ... [2020-11-29 23:14:10,562 INFO L373 chiAutomizerObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2020-11-29 23:14:10,642 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:14:10,642 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:14:10,642 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:14:10,642 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:14:10,643 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:14:10,643 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:14:10,643 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:14:10,643 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:14:10,657 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-29 23:14:10,676 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 23:14:10,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:14:10,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:14:10,682 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 23:14:10,683 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 23:14:10,683 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:14:10,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-29 23:14:10,684 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 23:14:10,684 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:14:10,684 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:14:10,685 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 23:14:10,685 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 23:14:10,692 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~mem2, main_#t~nondet3, main_#t~mem1, main_~#a~0.base, main_~#a~0.offset;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4192);call write~int(main_#t~nondet0, main_~#a~0.base, 8 + main_~#a~0.offset, 4);havoc main_#t~nondet0; 4#L13-3true [2020-11-29 23:14:10,712 INFO L796 eck$LassoCheckResult]: Loop: 4#L13-3true call main_#t~mem1 := read~int(main_~#a~0.base, 8 + main_~#a~0.offset, 4); 7#L13-1true assume !!(main_#t~mem1 >= 0);havoc main_#t~mem1;call main_#t~mem2 := read~int(main_~#a~0.base, 8 + main_~#a~0.offset, 4);call write~int(main_#t~mem2 - 1, main_~#a~0.base, 8 + main_~#a~0.offset, 4);havoc main_#t~mem2;call write~int(main_#t~nondet3, main_~#a~0.base, 8 + main_~#a~0.offset, 4);havoc main_#t~nondet3; 4#L13-3true [2020-11-29 23:14:10,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:14:10,718 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-29 23:14:10,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:14:10,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462002324] [2020-11-29 23:14:10,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:14:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:14:10,827 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:14:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:14:10,841 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:14:10,860 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:14:10,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:14:10,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2020-11-29 23:14:10,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:14:10,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783561402] [2020-11-29 23:14:10,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:14:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:14:10,872 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:14:10,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:14:10,879 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:14:10,882 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:14:10,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:14:10,884 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2020-11-29 23:14:10,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:14:10,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126952920] [2020-11-29 23:14:10,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:14:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:14:10,900 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:14:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:14:10,914 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:14:10,918 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:14:11,165 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-11-29 23:14:11,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:14:11 BoogieIcfgContainer [2020-11-29 23:14:11,289 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:14:11,290 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:14:11,291 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:14:11,291 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:14:11,291 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:14:10" (3/4) ... [2020-11-29 23:14:11,299 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-29 23:14:11,352 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8dc85820-58a0-4220-a460-5a05bc354855/bin/uautomizer/witness.graphml [2020-11-29 23:14:11,352 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:14:11,357 INFO L168 Benchmark]: Toolchain (without parser) took 1581.16 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 37.0 MB in the beginning and 59.4 MB in the end (delta: -22.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:14:11,358 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 71.3 MB. Free memory was 52.8 MB in the beginning and 52.8 MB in the end (delta: 37.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:14:11,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.22 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 36.8 MB in the beginning and 63.6 MB in the end (delta: -26.8 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-11-29 23:14:11,368 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.83 ms. Allocated memory is still 86.0 MB. Free memory was 63.6 MB in the beginning and 62.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:14:11,369 INFO L168 Benchmark]: Boogie Preprocessor took 46.85 ms. Allocated memory is still 86.0 MB. Free memory was 62.4 MB in the beginning and 61.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:14:11,370 INFO L168 Benchmark]: RCFGBuilder took 346.99 ms. Allocated memory is still 86.0 MB. Free memory was 61.1 MB in the beginning and 51.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:14:11,371 INFO L168 Benchmark]: BuchiAutomizer took 742.89 ms. Allocated memory is still 86.0 MB. Free memory was 51.4 MB in the beginning and 61.2 MB in the end (delta: -9.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:14:11,375 INFO L168 Benchmark]: Witness Printer took 62.56 ms. Allocated memory is still 86.0 MB. Free memory was 61.2 MB in the beginning and 59.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:14:11,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 71.3 MB. Free memory was 52.8 MB in the beginning and 52.8 MB in the end (delta: 37.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 325.22 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 36.8 MB in the beginning and 63.6 MB in the end (delta: -26.8 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.83 ms. Allocated memory is still 86.0 MB. Free memory was 63.6 MB in the beginning and 62.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.85 ms. Allocated memory is still 86.0 MB. Free memory was 62.4 MB in the beginning and 61.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 346.99 ms. Allocated memory is still 86.0 MB. Free memory was 61.1 MB in the beginning and 51.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 742.89 ms. Allocated memory is still 86.0 MB. Free memory was 51.4 MB in the beginning and 61.2 MB in the end (delta: -9.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * Witness Printer took 62.56 ms. Allocated memory is still 86.0 MB. Free memory was 61.2 MB in the beginning and 59.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available 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.CASTFunctionCallExpression@75aaa165=25906, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@755aef02=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@63f51346=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5138fa94=0, \result=0, a=0, NULL=1, 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! Received shutdown request...