./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 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.2.0-5485861 [2020-10-26 04:04:46,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:04:46,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:04:46,959 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:04:46,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:04:46,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:04:46,963 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:04:46,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:04:46,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:04:46,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:04:46,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:04:46,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:04:46,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:04:46,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:04:46,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:04:46,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:04:46,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:04:46,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:04:46,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:04:46,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:04:46,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:04:46,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:04:46,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:04:46,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:04:46,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:04:46,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:04:46,995 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:04:46,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:04:46,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:04:46,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:04:46,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:04:47,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:04:47,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:04:47,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:04:47,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:04:47,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:04:47,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:04:47,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:04:47,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:04:47,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:04:47,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:04:47,017 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:04:47,059 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:04:47,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:04:47,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:04:47,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:04:47,063 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:04:47,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:04:47,064 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:04:47,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:04:47,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:04:47,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:04:47,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:04:47,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:04:47,066 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:04:47,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:04:47,066 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:04:47,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:04:47,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:04:47,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:04:47,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:04:47,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:04:47,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:04:47,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:04:47,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:04:47,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:04:47,069 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:04:47,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:04:47,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:04:47,070 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:04:47,070 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75dd2ce3f6219a56f38a72471186bda1e7610d5c [2020-10-26 04:04:47,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:04:47,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:04:47,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:04:47,556 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:04:47,557 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:04:47,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2020-10-26 04:04:47,659 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51c2986da/de67869e77814a66a6190b38487e035b/FLAGe6ae56863 [2020-10-26 04:04:48,209 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:04:48,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2020-10-26 04:04:48,219 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51c2986da/de67869e77814a66a6190b38487e035b/FLAGe6ae56863 [2020-10-26 04:04:48,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51c2986da/de67869e77814a66a6190b38487e035b [2020-10-26 04:04:48,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:04:48,568 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:04:48,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:04:48,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:04:48,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:04:48,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:04:48" (1/1) ... [2020-10-26 04:04:48,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f82c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:04:48, skipping insertion in model container [2020-10-26 04:04:48,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:04:48" (1/1) ... [2020-10-26 04:04:48,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:04:48,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:04:48,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:04:48,793 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:04:48,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:04:48,820 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:04:48,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:04:48 WrapperNode [2020-10-26 04:04:48,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:04:48,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:04:48,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:04:48,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:04:48,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:04:48" (1/1) ... [2020-10-26 04:04:48,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:04:48" (1/1) ... [2020-10-26 04:04:48,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:04:48,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:04:48,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:04:48,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:04:48,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:04:48" (1/1) ... [2020-10-26 04:04:48,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:04:48" (1/1) ... [2020-10-26 04:04:48,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:04:48" (1/1) ... [2020-10-26 04:04:48,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:04:48" (1/1) ... [2020-10-26 04:04:48,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:04:48" (1/1) ... [2020-10-26 04:04:48,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:04:48" (1/1) ... [2020-10-26 04:04:48,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:04:48" (1/1) ... [2020-10-26 04:04:48,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:04:48,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:04:48,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:04:48,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:04:48,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:04:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-26 04:04:48,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:04:48,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:04:49,112 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:04:49,112 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:04:49,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:04:49 BoogieIcfgContainer [2020-10-26 04:04:49,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:04:49,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:04:49,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:04:49,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:04:49,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:04:48" (1/3) ... [2020-10-26 04:04:49,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609b2a02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:04:49, skipping insertion in model container [2020-10-26 04:04:49,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:04:48" (2/3) ... [2020-10-26 04:04:49,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609b2a02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:04:49, skipping insertion in model container [2020-10-26 04:04:49,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:04:49" (3/3) ... [2020-10-26 04:04:49,123 INFO L111 eAbstractionObserver]: Analyzing ICFG ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2020-10-26 04:04:49,135 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:04:49,140 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-26 04:04:49,153 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-26 04:04:49,178 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:04:49,179 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:04:49,179 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:04:49,179 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:04:49,179 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:04:49,179 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:04:49,179 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:04:49,180 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:04:49,192 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-10-26 04:04:49,196 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 04:04:49,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-26 04:04:49,254 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 04:04:49,255 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-26 04:04:49,255 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 04:04:49,255 INFO L277 CegarLoopResult]: At program point L27(lines 14 28) the Hoare annotation is: true [2020-10-26 04:04:49,256 INFO L274 CegarLoopResult]: For program point L23-1(lines 14 28) no Hoare annotation was computed. [2020-10-26 04:04:49,256 INFO L274 CegarLoopResult]: For program point L23-2(lines 23 25) no Hoare annotation was computed. [2020-10-26 04:04:49,256 INFO L274 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2020-10-26 04:04:49,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:04:49 BoogieIcfgContainer [2020-10-26 04:04:49,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:04:49,266 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:04:49,266 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:04:49,266 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:04:49,267 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:04:49" (3/4) ... [2020-10-26 04:04:49,271 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 04:04:49,283 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-26 04:04:49,283 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-26 04:04:49,328 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:04:49,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:04:49,331 INFO L168 Benchmark]: Toolchain (without parser) took 768.38 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.3 MB in the beginning and 24.8 MB in the end (delta: -4.5 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:04:49,332 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 44.0 MB. Free memory was 29.4 MB in the beginning and 29.3 MB in the end (delta: 24.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:04:49,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.97 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 19.7 MB in the beginning and 30.7 MB in the end (delta: -11.0 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:04:49,334 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.98 ms. Allocated memory is still 54.5 MB. Free memory was 30.7 MB in the beginning and 29.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:04:49,335 INFO L168 Benchmark]: Boogie Preprocessor took 21.19 ms. Allocated memory is still 54.5 MB. Free memory was 29.4 MB in the beginning and 28.7 MB in the end (delta: 749.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:04:49,336 INFO L168 Benchmark]: RCFGBuilder took 238.41 ms. Allocated memory is still 54.5 MB. Free memory was 28.5 MB in the beginning and 34.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:04:49,337 INFO L168 Benchmark]: TraceAbstraction took 149.52 ms. Allocated memory is still 54.5 MB. Free memory was 34.0 MB in the beginning and 27.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:04:49,338 INFO L168 Benchmark]: Witness Printer took 62.87 ms. Allocated memory is still 54.5 MB. Free memory was 27.1 MB in the beginning and 24.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:04:49,342 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 44.0 MB. Free memory was 29.4 MB in the beginning and 29.3 MB in the end (delta: 24.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 247.97 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 19.7 MB in the beginning and 30.7 MB in the end (delta: -11.0 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.98 ms. Allocated memory is still 54.5 MB. Free memory was 30.7 MB in the beginning and 29.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.19 ms. Allocated memory is still 54.5 MB. Free memory was 29.4 MB in the beginning and 28.7 MB in the end (delta: 749.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 238.41 ms. Allocated memory is still 54.5 MB. Free memory was 28.5 MB in the beginning and 34.6 MB in the end (delta: -6.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 149.52 ms. Allocated memory is still 54.5 MB. Free memory was 34.0 MB in the beginning and 27.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 62.87 ms. Allocated memory is still 54.5 MB. Free memory was 27.1 MB in the beginning and 24.8 MB in the end (delta: 2.3 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...