./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.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_9ed48f86-f97a-4bd3-92bf-a04ba707b227/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed48f86-f97a-4bd3-92bf-a04ba707b227/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_9ed48f86-f97a-4bd3-92bf-a04ba707b227/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed48f86-f97a-4bd3-92bf-a04ba707b227/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed48f86-f97a-4bd3-92bf-a04ba707b227/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_9ed48f86-f97a-4bd3-92bf-a04ba707b227/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 75dd2ce3f6219a56f38a72471186bda1e7610d5c ..................................................................................................................................................................................................................... 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 00:25:54,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:25:54,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:25:54,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:25:54,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:25:54,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:25:54,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:25:54,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:25:54,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:25:54,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:25:54,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:25:54,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:25:54,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:25:54,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:25:54,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:25:54,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:25:54,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:25:54,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:25:54,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:25:54,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:25:54,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:25:54,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:25:54,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:25:54,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:25:54,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:25:54,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:25:54,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:25:54,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:25:54,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:25:54,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:25:54,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:25:54,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:25:54,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:25:54,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:25:54,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:25:54,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:25:54,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:25:54,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:25:54,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:25:54,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:25:54,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:25:54,389 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed48f86-f97a-4bd3-92bf-a04ba707b227/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-10-11 00:25:54,438 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:25:54,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:25:54,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:25:54,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:25:54,441 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:25:54,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:25:54,442 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:25:54,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:25:54,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:25:54,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:25:54,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:25:54,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:25:54,451 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 00:25:54,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:25:54,451 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:25:54,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:25:54,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:25:54,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:25:54,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:25:54,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:25:54,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:25:54,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:25:54,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:25:54,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:25:54,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:25:54,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:25:54,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:25:54,454 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_9ed48f86-f97a-4bd3-92bf-a04ba707b227/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed48f86-f97a-4bd3-92bf-a04ba707b227/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75dd2ce3f6219a56f38a72471186bda1e7610d5c [2021-10-11 00:25:54,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:25:54,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:25:54,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:25:54,779 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:25:54,781 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:25:54,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed48f86-f97a-4bd3-92bf-a04ba707b227/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2021-10-11 00:25:54,868 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed48f86-f97a-4bd3-92bf-a04ba707b227/bin/uautomizer-Z5i5R5N3CC/data/fe09fedea/209dea352bb146a0a7da0911edb68673/FLAGd9cbace57 [2021-10-11 00:25:55,356 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:25:55,357 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed48f86-f97a-4bd3-92bf-a04ba707b227/sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2021-10-11 00:25:55,365 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed48f86-f97a-4bd3-92bf-a04ba707b227/bin/uautomizer-Z5i5R5N3CC/data/fe09fedea/209dea352bb146a0a7da0911edb68673/FLAGd9cbace57 [2021-10-11 00:25:55,728 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed48f86-f97a-4bd3-92bf-a04ba707b227/bin/uautomizer-Z5i5R5N3CC/data/fe09fedea/209dea352bb146a0a7da0911edb68673 [2021-10-11 00:25:55,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:25:55,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:25:55,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:25:55,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:25:55,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:25:55,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:25:55" (1/1) ... [2021-10-11 00:25:55,745 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff65331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:55, skipping insertion in model container [2021-10-11 00:25:55,745 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:25:55" (1/1) ... [2021-10-11 00:25:55,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:25:55,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:25:55,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:25:55,946 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:25:55,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:25:55,973 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:25:55,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:55 WrapperNode [2021-10-11 00:25:55,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:25:55,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:25:55,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:25:55,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:25:55,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:55" (1/1) ... [2021-10-11 00:25:55,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:55" (1/1) ... [2021-10-11 00:25:56,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:25:56,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:25:56,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:25:56,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:25:56,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:55" (1/1) ... [2021-10-11 00:25:56,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:55" (1/1) ... [2021-10-11 00:25:56,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:55" (1/1) ... [2021-10-11 00:25:56,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:55" (1/1) ... [2021-10-11 00:25:56,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:55" (1/1) ... [2021-10-11 00:25:56,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:55" (1/1) ... [2021-10-11 00:25:56,027 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:55" (1/1) ... [2021-10-11 00:25:56,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:25:56,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:25:56,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:25:56,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:25:56,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:55" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed48f86-f97a-4bd3-92bf-a04ba707b227/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 00:25:56,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:25:56,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:25:56,273 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:25:56,273 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:25:56,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:56 BoogieIcfgContainer [2021-10-11 00:25:56,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:25:56,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:25:56,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:25:56,283 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:25:56,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:25:55" (1/3) ... [2021-10-11 00:25:56,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9859839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:25:56, skipping insertion in model container [2021-10-11 00:25:56,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:25:55" (2/3) ... [2021-10-11 00:25:56,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9859839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:25:56, skipping insertion in model container [2021-10-11 00:25:56,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:56" (3/3) ... [2021-10-11 00:25:56,289 INFO L111 eAbstractionObserver]: Analyzing ICFG ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2021-10-11 00:25:56,304 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:25:56,308 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2021-10-11 00:25:56,327 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2021-10-11 00:25:56,366 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:25:56,366 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:25:56,366 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:25:56,368 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:25:56,368 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:25:56,368 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:25:56,368 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:25:56,369 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:25:56,381 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2021-10-11 00:25:56,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:25:56,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2021-10-11 00:25:56,433 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:25:56,433 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:25:56,434 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:25:56,434 INFO L265 CegarLoopResult]: At program point L27(lines 14 28) the Hoare annotation is: true [2021-10-11 00:25:56,434 INFO L262 CegarLoopResult]: For program point L23-1(lines 14 28) no Hoare annotation was computed. [2021-10-11 00:25:56,434 INFO L262 CegarLoopResult]: For program point L23-2(lines 23 25) no Hoare annotation was computed. [2021-10-11 00:25:56,435 INFO L262 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2021-10-11 00:25:56,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:25:56 BoogieIcfgContainer [2021-10-11 00:25:56,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:25:56,446 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:25:56,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:25:56,446 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:25:56,447 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:25:56" (3/4) ... [2021-10-11 00:25:56,454 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:25:56,467 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-11 00:25:56,467 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 00:25:56,531 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ed48f86-f97a-4bd3-92bf-a04ba707b227/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:25:56,540 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:25:56,542 INFO L168 Benchmark]: Toolchain (without parser) took 806.91 ms. Allocated memory is still 119.5 MB. Free memory was 80.2 MB in the beginning and 75.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 1.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:56,543 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 119.5 MB. Free memory was 96.4 MB in the beginning and 96.3 MB in the end (delta: 61.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:25:56,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.03 ms. Allocated memory is still 119.5 MB. Free memory was 80.0 MB in the beginning and 95.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:56,544 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.61 ms. Allocated memory is still 119.5 MB. Free memory was 95.7 MB in the beginning and 94.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:25:56,545 INFO L168 Benchmark]: Boogie Preprocessor took 20.54 ms. Allocated memory is still 119.5 MB. Free memory was 94.6 MB in the beginning and 93.6 MB in the end (delta: 972.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:56,546 INFO L168 Benchmark]: RCFGBuilder took 244.69 ms. Allocated memory is still 119.5 MB. Free memory was 93.6 MB in the beginning and 85.2 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:56,546 INFO L168 Benchmark]: TraceAbstraction took 168.54 ms. Allocated memory is still 119.5 MB. Free memory was 84.8 MB in the beginning and 77.8 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:56,547 INFO L168 Benchmark]: Witness Printer took 94.72 ms. Allocated memory is still 119.5 MB. Free memory was 77.8 MB in the beginning and 75.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:25:56,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 119.5 MB. Free memory was 96.4 MB in the beginning and 96.3 MB in the end (delta: 61.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 237.03 ms. Allocated memory is still 119.5 MB. Free memory was 80.0 MB in the beginning and 95.7 MB in the end (delta: -15.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.61 ms. Allocated memory is still 119.5 MB. Free memory was 95.7 MB in the beginning and 94.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.54 ms. Allocated memory is still 119.5 MB. Free memory was 94.6 MB in the beginning and 93.6 MB in the end (delta: 972.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 244.69 ms. Allocated memory is still 119.5 MB. Free memory was 93.6 MB in the beginning and 85.2 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 168.54 ms. Allocated memory is still 119.5 MB. Free memory was 84.8 MB in the beginning and 77.8 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Witness Printer took 94.72 ms. Allocated memory is still 119.5 MB. Free memory was 77.8 MB in the beginning and 75.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...