./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc5441f-4620-4b66-860f-355bbc5c8a72/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc5441f-4620-4b66-860f-355bbc5c8a72/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc5441f-4620-4b66-860f-355bbc5c8a72/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc5441f-4620-4b66-860f-355bbc5c8a72/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc5441f-4620-4b66-860f-355bbc5c8a72/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc5441f-4620-4b66-860f-355bbc5c8a72/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8c261c4c4bb9c8a95f9cb14c668da53a89a0d0c6 .................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:29:45,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:29:45,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:29:45,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:29:45,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:29:45,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:29:45,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:29:45,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:29:45,422 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:29:45,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:29:45,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:29:45,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:29:45,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:29:45,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:29:45,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:29:45,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:29:45,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:29:45,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:29:45,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:29:45,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:29:45,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:29:45,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:29:45,447 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:29:45,448 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:29:45,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:29:45,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:29:45,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:29:45,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:29:45,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:29:45,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:29:45,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:29:45,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:29:45,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:29:45,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:29:45,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:29:45,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:29:45,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:29:45,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:29:45,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:29:45,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:29:45,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:29:45,472 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc5441f-4620-4b66-860f-355bbc5c8a72/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-11 00:29:45,512 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:29:45,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:29:45,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:29:45,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:29:45,515 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:29:45,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:29:45,515 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:29:45,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:29:45,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:29:45,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:29:45,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:29:45,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:29:45,523 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 00:29:45,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:29:45,524 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:29:45,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:29:45,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:29:45,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:29:45,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:29:45,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:29:45,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:29:45,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:29:45,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:29:45,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:29:45,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:29:45,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:29:45,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:29:45,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_8dc5441f-4620-4b66-860f-355bbc5c8a72/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc5441f-4620-4b66-860f-355bbc5c8a72/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c261c4c4bb9c8a95f9cb14c668da53a89a0d0c6 [2021-10-11 00:29:45,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:29:45,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:29:45,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:29:45,916 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:29:45,916 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:29:45,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc5441f-4620-4b66-860f-355bbc5c8a72/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9.c [2021-10-11 00:29:46,005 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc5441f-4620-4b66-860f-355bbc5c8a72/bin/uautomizer-Z5i5R5N3CC/data/574f7c667/5ff59d253da94b0ba78ae6c5b0af05a0/FLAG36043563b [2021-10-11 00:29:46,432 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:29:46,433 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc5441f-4620-4b66-860f-355bbc5c8a72/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9.c [2021-10-11 00:29:46,439 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc5441f-4620-4b66-860f-355bbc5c8a72/bin/uautomizer-Z5i5R5N3CC/data/574f7c667/5ff59d253da94b0ba78ae6c5b0af05a0/FLAG36043563b [2021-10-11 00:29:46,835 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc5441f-4620-4b66-860f-355bbc5c8a72/bin/uautomizer-Z5i5R5N3CC/data/574f7c667/5ff59d253da94b0ba78ae6c5b0af05a0 [2021-10-11 00:29:46,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:29:46,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:29:46,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:29:46,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:29:46,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:29:46,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:29:46" (1/1) ... [2021-10-11 00:29:46,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e61b66c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:46, skipping insertion in model container [2021-10-11 00:29:46,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:29:46" (1/1) ... [2021-10-11 00:29:46,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:29:46,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:29:47,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:29:47,085 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:29:47,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:29:47,122 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:29:47,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:47 WrapperNode [2021-10-11 00:29:47,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:29:47,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:29:47,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:29:47,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:29:47,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:47" (1/1) ... [2021-10-11 00:29:47,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:47" (1/1) ... [2021-10-11 00:29:47,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:29:47,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:29:47,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:29:47,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:29:47,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:47" (1/1) ... [2021-10-11 00:29:47,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:47" (1/1) ... [2021-10-11 00:29:47,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:47" (1/1) ... [2021-10-11 00:29:47,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:47" (1/1) ... [2021-10-11 00:29:47,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:47" (1/1) ... [2021-10-11 00:29:47,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:47" (1/1) ... [2021-10-11 00:29:47,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:47" (1/1) ... [2021-10-11 00:29:47,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:29:47,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:29:47,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:29:47,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:29:47,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:47" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc5441f-4620-4b66-860f-355bbc5c8a72/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:29:47,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:29:47,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:29:47,450 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:29:47,452 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:29:47,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:29:47 BoogieIcfgContainer [2021-10-11 00:29:47,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:29:47,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:29:47,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:29:47,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:29:47,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:29:46" (1/3) ... [2021-10-11 00:29:47,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ea6a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:29:47, skipping insertion in model container [2021-10-11 00:29:47,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:29:47" (2/3) ... [2021-10-11 00:29:47,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ea6a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:29:47, skipping insertion in model container [2021-10-11 00:29:47,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:29:47" (3/3) ... [2021-10-11 00:29:47,466 INFO L111 eAbstractionObserver]: Analyzing ICFG LeikeHeizmann-WST2014-Ex9.c [2021-10-11 00:29:47,483 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:29:47,487 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 00:29:47,498 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 00:29:47,533 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:29:47,534 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:29:47,534 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:29:47,534 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:29:47,534 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:29:47,534 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:29:47,535 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:29:47,535 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:29:47,550 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2021-10-11 00:29:47,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 00:29:47,555 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:29:47,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 00:29:47,556 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 00:29:47,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:29:47,562 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-10-11 00:29:47,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:29:47,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865233859] [2021-10-11 00:29:47,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:29:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:29:47,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:29:47,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865233859] [2021-10-11 00:29:47,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:29:47,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:29:47,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140502538] [2021-10-11 00:29:47,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:29:47,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:29:47,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:29:47,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:29:47,811 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2021-10-11 00:29:47,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:29:47,883 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-10-11 00:29:47,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:29:47,886 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2021-10-11 00:29:47,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:29:47,891 INFO L225 Difference]: With dead ends: 14 [2021-10-11 00:29:47,906 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:29:47,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:29:47,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:29:47,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:29:47,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:29:47,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:29:47,959 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2021-10-11 00:29:47,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:29:47,959 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:29:47,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:29:47,960 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:29:47,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:29:47,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:29:47,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:29:47,976 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2021-10-11 00:29:47,976 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:29:47,977 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2021-10-11 00:29:47,977 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:29:47,977 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:29:47,977 INFO L258 CegarLoopResult]: At program point L16(lines 11 17) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-10-11 00:29:47,977 INFO L262 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2021-10-11 00:29:47,978 INFO L262 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2021-10-11 00:29:47,978 INFO L258 CegarLoopResult]: At program point L13-2(lines 13 15) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2021-10-11 00:29:47,978 INFO L262 CegarLoopResult]: For program point L13-3(lines 13 15) no Hoare annotation was computed. [2021-10-11 00:29:47,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:29:47 BoogieIcfgContainer [2021-10-11 00:29:47,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:29:47,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:29:47,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:29:47,992 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:29:47,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:29:47" (3/4) ... [2021-10-11 00:29:47,995 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:29:48,003 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-11 00:29:48,003 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 00:29:48,036 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dc5441f-4620-4b66-860f-355bbc5c8a72/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:29:48,036 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:29:48,038 INFO L168 Benchmark]: Toolchain (without parser) took 1195.45 ms. Allocated memory is still 98.6 MB. Free memory was 59.6 MB in the beginning and 41.9 MB in the end (delta: 17.8 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:48,040 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 98.6 MB. Free memory is still 75.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:29:48,041 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.68 ms. Allocated memory is still 98.6 MB. Free memory was 59.4 MB in the beginning and 75.7 MB in the end (delta: -16.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:48,042 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.77 ms. Allocated memory is still 98.6 MB. Free memory was 75.7 MB in the beginning and 74.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:29:48,047 INFO L168 Benchmark]: Boogie Preprocessor took 25.02 ms. Allocated memory is still 98.6 MB. Free memory was 74.7 MB in the beginning and 73.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:48,048 INFO L168 Benchmark]: RCFGBuilder took 270.51 ms. Allocated memory is still 98.6 MB. Free memory was 73.6 MB in the beginning and 64.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:48,049 INFO L168 Benchmark]: TraceAbstraction took 534.26 ms. Allocated memory is still 98.6 MB. Free memory was 64.6 MB in the beginning and 43.9 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:48,050 INFO L168 Benchmark]: Witness Printer took 44.98 ms. Allocated memory is still 98.6 MB. Free memory was 43.9 MB in the beginning and 41.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:29:48,059 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 98.6 MB. Free memory is still 75.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 279.68 ms. Allocated memory is still 98.6 MB. Free memory was 59.4 MB in the beginning and 75.7 MB in the end (delta: -16.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.77 ms. Allocated memory is still 98.6 MB. Free memory was 75.7 MB in the beginning and 74.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.02 ms. Allocated memory is still 98.6 MB. Free memory was 74.7 MB in the beginning and 73.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 270.51 ms. Allocated memory is still 98.6 MB. Free memory was 73.6 MB in the beginning and 64.9 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 534.26 ms. Allocated memory is still 98.6 MB. Free memory was 64.6 MB in the beginning and 43.9 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 44.98 ms. Allocated memory is still 98.6 MB. Free memory was 43.9 MB in the beginning and 41.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: x <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 6 SDslu, 3 SDs, 0 SdLazy, 7 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...