./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/cohencu_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/nla-digbench-scaling/cohencu_valuebound20.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b1398994c10b74b2312d3cd0eb5c6f4657cd1cfb ...................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 22:36:15,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 22:36:15,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 22:36:15,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 22:36:15,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 22:36:15,100 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 22:36:15,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 22:36:15,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 22:36:15,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 22:36:15,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 22:36:15,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 22:36:15,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 22:36:15,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 22:36:15,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 22:36:15,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 22:36:15,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 22:36:15,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 22:36:15,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 22:36:15,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 22:36:15,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 22:36:15,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 22:36:15,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 22:36:15,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 22:36:15,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 22:36:15,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 22:36:15,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 22:36:15,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 22:36:15,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 22:36:15,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 22:36:15,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 22:36:15,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 22:36:15,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 22:36:15,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 22:36:15,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 22:36:15,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 22:36:15,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 22:36:15,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 22:36:15,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 22:36:15,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 22:36:15,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 22:36:15,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 22:36:15,171 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 22:36:15,195 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 22:36:15,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 22:36:15,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 22:36:15,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 22:36:15,198 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 22:36:15,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 22:36:15,198 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 22:36:15,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 22:36:15,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 22:36:15,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 22:36:15,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 22:36:15,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 22:36:15,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 22:36:15,200 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 22:36:15,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 22:36:15,200 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 22:36:15,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 22:36:15,200 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 22:36:15,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 22:36:15,201 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 22:36:15,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 22:36:15,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 22:36:15,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 22:36:15,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 22:36:15,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 22:36:15,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 22:36:15,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 22:36:15,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 22:36:15,203 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 22:36:15,203 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1398994c10b74b2312d3cd0eb5c6f4657cd1cfb [2020-10-25 22:36:15,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 22:36:15,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 22:36:15,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 22:36:15,643 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 22:36:15,645 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 22:36:15,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/cohencu_valuebound20.c [2020-10-25 22:36:15,718 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f112f57e/da119351a0604fe39c6831ee5763c735/FLAGe4cf6705a [2020-10-25 22:36:16,467 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 22:36:16,469 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/cohencu_valuebound20.c [2020-10-25 22:36:16,499 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f112f57e/da119351a0604fe39c6831ee5763c735/FLAGe4cf6705a [2020-10-25 22:36:16,835 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f112f57e/da119351a0604fe39c6831ee5763c735 [2020-10-25 22:36:16,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 22:36:16,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 22:36:16,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 22:36:16,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 22:36:16,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 22:36:16,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:36:16" (1/1) ... [2020-10-25 22:36:16,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55de0610 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:36:16, skipping insertion in model container [2020-10-25 22:36:16,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 10:36:16" (1/1) ... [2020-10-25 22:36:16,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 22:36:16,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 22:36:17,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:36:17,151 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 22:36:17,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 22:36:17,189 INFO L208 MainTranslator]: Completed translation [2020-10-25 22:36:17,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:36:17 WrapperNode [2020-10-25 22:36:17,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 22:36:17,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 22:36:17,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 22:36:17,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 22:36:17,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:36:17" (1/1) ... [2020-10-25 22:36:17,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:36:17" (1/1) ... [2020-10-25 22:36:17,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 22:36:17,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 22:36:17,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 22:36:17,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 22:36:17,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:36:17" (1/1) ... [2020-10-25 22:36:17,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:36:17" (1/1) ... [2020-10-25 22:36:17,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:36:17" (1/1) ... [2020-10-25 22:36:17,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:36:17" (1/1) ... [2020-10-25 22:36:17,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:36:17" (1/1) ... [2020-10-25 22:36:17,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:36:17" (1/1) ... [2020-10-25 22:36:17,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:36:17" (1/1) ... [2020-10-25 22:36:17,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 22:36:17,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 22:36:17,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 22:36:17,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 22:36:17,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:36:17" (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 [2020-10-25 22:36:17,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 22:36:17,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 22:36:17,697 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 22:36:17,697 INFO L298 CfgBuilder]: Removed 51 assume(true) statements. [2020-10-25 22:36:17,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:36:17 BoogieIcfgContainer [2020-10-25 22:36:17,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 22:36:17,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 22:36:17,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 22:36:17,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 22:36:17,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 10:36:16" (1/3) ... [2020-10-25 22:36:17,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6caa2440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:36:17, skipping insertion in model container [2020-10-25 22:36:17,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 10:36:17" (2/3) ... [2020-10-25 22:36:17,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6caa2440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 10:36:17, skipping insertion in model container [2020-10-25 22:36:17,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:36:17" (3/3) ... [2020-10-25 22:36:17,709 INFO L111 eAbstractionObserver]: Analyzing ICFG cohencu_valuebound20.c [2020-10-25 22:36:17,721 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 22:36:17,726 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-25 22:36:17,751 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-25 22:36:17,798 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 22:36:17,799 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 22:36:17,799 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 22:36:17,799 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 22:36:17,799 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 22:36:17,799 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 22:36:17,800 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 22:36:17,800 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 22:36:17,821 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-10-25 22:36:17,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 22:36:17,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 30 states. [2020-10-25 22:36:17,941 INFO L277 CegarLoopResult]: At program point L52(lines 21 53) the Hoare annotation is: true [2020-10-25 22:36:17,941 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-10-25 22:36:17,941 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 22:36:17,941 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 22:36:17,941 INFO L277 CegarLoopResult]: At program point L30-2(lines 30 43) the Hoare annotation is: true [2020-10-25 22:36:17,942 INFO L274 CegarLoopResult]: For program point L30-3(lines 30 43) no Hoare annotation was computed. [2020-10-25 22:36:17,942 INFO L274 CegarLoopResult]: For program point L14(lines 14 17) no Hoare annotation was computed. [2020-10-25 22:36:17,942 INFO L277 CegarLoopResult]: At program point L14-1(lines 13 19) the Hoare annotation is: true [2020-10-25 22:36:17,942 INFO L274 CegarLoopResult]: For program point L14-2(lines 14 17) no Hoare annotation was computed. [2020-10-25 22:36:17,942 INFO L277 CegarLoopResult]: At program point L14-3(lines 13 19) the Hoare annotation is: true [2020-10-25 22:36:17,942 INFO L274 CegarLoopResult]: For program point L14-4(lines 14 17) no Hoare annotation was computed. [2020-10-25 22:36:17,943 INFO L277 CegarLoopResult]: At program point L14-5(lines 13 19) the Hoare annotation is: true [2020-10-25 22:36:17,943 INFO L274 CegarLoopResult]: For program point L14-6(lines 14 17) no Hoare annotation was computed. [2020-10-25 22:36:17,943 INFO L277 CegarLoopResult]: At program point L14-7(lines 13 19) the Hoare annotation is: true [2020-10-25 22:36:17,943 INFO L274 CegarLoopResult]: For program point L14-8(lines 14 17) no Hoare annotation was computed. [2020-10-25 22:36:17,943 INFO L277 CegarLoopResult]: At program point L14-9(lines 36 37) the Hoare annotation is: true [2020-10-25 22:36:17,943 INFO L274 CegarLoopResult]: For program point L14-10(lines 14 17) no Hoare annotation was computed. [2020-10-25 22:36:17,944 INFO L277 CegarLoopResult]: At program point L14-11(lines 13 19) the Hoare annotation is: true [2020-10-25 22:36:17,944 INFO L274 CegarLoopResult]: For program point L14-12(lines 14 17) no Hoare annotation was computed. [2020-10-25 22:36:17,944 INFO L277 CegarLoopResult]: At program point L14-13(lines 13 19) the Hoare annotation is: true [2020-10-25 22:36:17,944 INFO L274 CegarLoopResult]: For program point L14-14(lines 14 17) no Hoare annotation was computed. [2020-10-25 22:36:17,944 INFO L277 CegarLoopResult]: At program point L14-15(lines 13 19) the Hoare annotation is: true [2020-10-25 22:36:17,944 INFO L274 CegarLoopResult]: For program point L14-16(lines 14 17) no Hoare annotation was computed. [2020-10-25 22:36:17,945 INFO L277 CegarLoopResult]: At program point L14-17(lines 13 19) the Hoare annotation is: true [2020-10-25 22:36:17,945 INFO L274 CegarLoopResult]: For program point L14-18(lines 14 17) no Hoare annotation was computed. [2020-10-25 22:36:17,945 INFO L277 CegarLoopResult]: At program point L14-19(lines 13 19) the Hoare annotation is: true [2020-10-25 22:36:17,945 INFO L274 CegarLoopResult]: For program point L14-20(lines 14 17) no Hoare annotation was computed. [2020-10-25 22:36:17,945 INFO L277 CegarLoopResult]: At program point L14-21(lines 13 19) the Hoare annotation is: true [2020-10-25 22:36:17,945 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 22:36:17,946 INFO L274 CegarLoopResult]: For program point L10(lines 10 12) no Hoare annotation was computed. [2020-10-25 22:36:17,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 10:36:17 BoogieIcfgContainer [2020-10-25 22:36:17,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 22:36:17,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 22:36:17,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 22:36:17,957 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 22:36:17,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 10:36:17" (3/4) ... [2020-10-25 22:36:17,961 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 22:36:17,975 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-10-25 22:36:17,975 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-25 22:36:18,031 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 22:36:18,032 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 22:36:18,034 INFO L168 Benchmark]: Toolchain (without parser) took 1191.61 ms. Allocated memory is still 46.1 MB. Free memory was 31.2 MB in the beginning and 25.2 MB in the end (delta: 5.9 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:36:18,035 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 35.7 MB. Free memory was 21.3 MB in the beginning and 21.3 MB in the end (delta: 26.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:36:18,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.72 ms. Allocated memory is still 46.1 MB. Free memory was 30.5 MB in the beginning and 21.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-25 22:36:18,036 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.01 ms. Allocated memory is still 46.1 MB. Free memory was 21.2 MB in the beginning and 31.6 MB in the end (delta: -10.4 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2020-10-25 22:36:18,037 INFO L168 Benchmark]: Boogie Preprocessor took 25.90 ms. Allocated memory is still 46.1 MB. Free memory was 31.6 MB in the beginning and 30.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 22:36:18,037 INFO L168 Benchmark]: RCFGBuilder took 433.41 ms. Allocated memory is still 46.1 MB. Free memory was 30.3 MB in the beginning and 26.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-10-25 22:36:18,038 INFO L168 Benchmark]: TraceAbstraction took 253.87 ms. Allocated memory is still 46.1 MB. Free memory was 26.2 MB in the beginning and 28.2 MB in the end (delta: -1.9 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2020-10-25 22:36:18,038 INFO L168 Benchmark]: Witness Printer took 75.62 ms. Allocated memory is still 46.1 MB. Free memory was 28.2 MB in the beginning and 25.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 22:36:18,042 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 35.7 MB. Free memory was 21.3 MB in the beginning and 21.3 MB in the end (delta: 26.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 336.72 ms. Allocated memory is still 46.1 MB. Free memory was 30.5 MB in the beginning and 21.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.01 ms. Allocated memory is still 46.1 MB. Free memory was 21.2 MB in the beginning and 31.6 MB in the end (delta: -10.4 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.90 ms. Allocated memory is still 46.1 MB. Free memory was 31.6 MB in the beginning and 30.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 433.41 ms. Allocated memory is still 46.1 MB. Free memory was 30.3 MB in the beginning and 26.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 253.87 ms. Allocated memory is still 46.1 MB. Free memory was 26.2 MB in the beginning and 28.2 MB in the end (delta: -1.9 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * Witness Printer took 75.62 ms. Allocated memory is still 46.1 MB. Free memory was 28.2 MB in the beginning and 25.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 13 LocationsWithAnnotation, 13 PreInvPairs, 13 NumberOfFragments, 13 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 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...