./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/id_b2_o3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/recursive-simple/id_b2_o3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d9304edeab15e85170ca5853f26517d34908a3d ........................................................................................................................................................................................................................................ 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 04:09:33,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:09:33,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:09:33,524 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:09:33,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:09:33,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:09:33,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:09:33,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:09:33,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:09:33,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:09:33,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:09:33,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:09:33,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:09:33,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:09:33,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:09:33,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:09:33,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:09:33,547 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:09:33,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:09:33,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:09:33,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:09:33,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:09:33,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:09:33,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:09:33,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:09:33,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:09:33,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:09:33,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:09:33,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:09:33,567 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:09:33,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:09:33,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:09:33,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:09:33,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:09:33,572 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:09:33,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:09:33,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:09:33,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:09:33,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:09:33,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:09:33,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:09:33,577 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-10-26 04:09:33,607 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:09:33,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:09:33,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:09:33,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:09:33,610 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:09:33,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:09:33,610 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 04:09:33,611 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:09:33,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:09:33,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 04:09:33,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:09:33,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:09:33,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:09:33,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:09:33,612 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:09:33,613 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 04:09:33,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:09:33,613 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:09:33,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:09:33,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:09:33,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:09:33,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:09:33,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:09:33,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:09:33,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:09:33,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:09:33,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:09:33,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:09:33,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:09:33,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:09:33,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:09:33,616 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d9304edeab15e85170ca5853f26517d34908a3d [2020-10-26 04:09:34,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:09:34,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:09:34,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:09:34,090 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:09:34,091 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:09:34,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_b2_o3.c [2020-10-26 04:09:34,182 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fb0626eb/1effcd1f16aa4f4cb4bcf1996d51fb82/FLAGcccfb44a4 [2020-10-26 04:09:34,924 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:09:34,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_b2_o3.c [2020-10-26 04:09:34,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fb0626eb/1effcd1f16aa4f4cb4bcf1996d51fb82/FLAGcccfb44a4 [2020-10-26 04:09:35,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fb0626eb/1effcd1f16aa4f4cb4bcf1996d51fb82 [2020-10-26 04:09:35,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:09:35,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:09:35,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:09:35,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:09:35,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:09:35,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:09:35" (1/1) ... [2020-10-26 04:09:35,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c916c52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:35, skipping insertion in model container [2020-10-26 04:09:35,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:09:35" (1/1) ... [2020-10-26 04:09:35,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:09:35,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:09:35,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:09:35,551 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:09:35,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:09:35,587 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:09:35,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:35 WrapperNode [2020-10-26 04:09:35,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:09:35,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:09:35,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:09:35,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:09:35,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:35" (1/1) ... [2020-10-26 04:09:35,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:35" (1/1) ... [2020-10-26 04:09:35,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:09:35,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:09:35,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:09:35,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:09:35,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:35" (1/1) ... [2020-10-26 04:09:35,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:35" (1/1) ... [2020-10-26 04:09:35,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:35" (1/1) ... [2020-10-26 04:09:35,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:35" (1/1) ... [2020-10-26 04:09:35,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:35" (1/1) ... [2020-10-26 04:09:35,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:35" (1/1) ... [2020-10-26 04:09:35,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:35" (1/1) ... [2020-10-26 04:09:35,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:09:35,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:09:35,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:09:35,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:09:35,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:35" (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 04:09:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:09:35,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:09:35,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 04:09:35,744 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-10-26 04:09:35,744 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-10-26 04:09:35,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:09:35,973 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:09:35,973 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-26 04:09:35,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:09:35 BoogieIcfgContainer [2020-10-26 04:09:35,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:09:35,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:09:35,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:09:35,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:09:35,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:09:35" (1/3) ... [2020-10-26 04:09:35,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2490c1a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:09:35, skipping insertion in model container [2020-10-26 04:09:35,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:35" (2/3) ... [2020-10-26 04:09:35,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2490c1a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:09:35, skipping insertion in model container [2020-10-26 04:09:35,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:09:35" (3/3) ... [2020-10-26 04:09:35,992 INFO L111 eAbstractionObserver]: Analyzing ICFG id_b2_o3.c [2020-10-26 04:09:36,023 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:09:36,029 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-26 04:09:36,065 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-26 04:09:36,095 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:09:36,095 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:09:36,095 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:09:36,095 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:09:36,096 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:09:36,096 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:09:36,096 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:09:36,096 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:09:36,115 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-10-26 04:09:36,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 04:09:36,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 17 states. [2020-10-26 04:09:36,195 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 04:09:36,195 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-26 04:09:36,195 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-26 04:09:36,196 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 04:09:36,196 INFO L274 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-10-26 04:09:36,196 INFO L274 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-10-26 04:09:36,196 INFO L277 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-10-26 04:09:36,196 INFO L274 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-10-26 04:09:36,196 INFO L274 CegarLoopResult]: For program point L13(lines 13 19) no Hoare annotation was computed. [2020-10-26 04:09:36,197 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-26 04:09:36,197 INFO L274 CegarLoopResult]: For program point idFINAL(lines 6 11) no Hoare annotation was computed. [2020-10-26 04:09:36,197 INFO L274 CegarLoopResult]: For program point idEXIT(lines 6 11) no Hoare annotation was computed. [2020-10-26 04:09:36,198 INFO L274 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed. [2020-10-26 04:09:36,198 INFO L277 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-10-26 04:09:36,198 INFO L277 CegarLoopResult]: At program point idENTRY(lines 6 11) the Hoare annotation is: true [2020-10-26 04:09:36,199 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-10-26 04:09:36,199 INFO L274 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-10-26 04:09:36,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:09:36 BoogieIcfgContainer [2020-10-26 04:09:36,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:09:36,205 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:09:36,206 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:09:36,206 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:09:36,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:09:35" (3/4) ... [2020-10-26 04:09:36,212 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 04:09:36,225 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2020-10-26 04:09:36,230 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-26 04:09:36,237 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-26 04:09:36,238 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 04:09:36,238 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 04:09:36,293 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:09:36,296 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:09:36,299 INFO L168 Benchmark]: Toolchain (without parser) took 1009.81 ms. Allocated memory is still 52.4 MB. Free memory was 30.3 MB in the beginning and 35.0 MB in the end (delta: -4.6 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2020-10-26 04:09:36,300 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 37.7 MB. Free memory was 24.0 MB in the beginning and 24.0 MB in the end (delta: 16.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:09:36,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.61 ms. Allocated memory is still 52.4 MB. Free memory was 29.7 MB in the beginning and 31.0 MB in the end (delta: -1.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:09:36,302 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.57 ms. Allocated memory is still 52.4 MB. Free memory was 31.0 MB in the beginning and 29.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:09:36,302 INFO L168 Benchmark]: Boogie Preprocessor took 22.58 ms. Allocated memory is still 52.4 MB. Free memory was 29.7 MB in the beginning and 28.8 MB in the end (delta: 834.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:09:36,303 INFO L168 Benchmark]: RCFGBuilder took 322.60 ms. Allocated memory is still 52.4 MB. Free memory was 28.7 MB in the beginning and 31.6 MB in the end (delta: -2.9 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:09:36,304 INFO L168 Benchmark]: TraceAbstraction took 227.10 ms. Allocated memory is still 52.4 MB. Free memory was 31.0 MB in the beginning and 23.3 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:09:36,305 INFO L168 Benchmark]: Witness Printer took 90.81 ms. Allocated memory is still 52.4 MB. Free memory was 23.3 MB in the beginning and 35.0 MB in the end (delta: -11.7 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:09:36,310 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 37.7 MB. Free memory was 24.0 MB in the beginning and 24.0 MB in the end (delta: 16.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 292.61 ms. Allocated memory is still 52.4 MB. Free memory was 29.7 MB in the beginning and 31.0 MB in the end (delta: -1.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.57 ms. Allocated memory is still 52.4 MB. Free memory was 31.0 MB in the beginning and 29.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.58 ms. Allocated memory is still 52.4 MB. Free memory was 29.7 MB in the beginning and 28.8 MB in the end (delta: 834.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 322.60 ms. Allocated memory is still 52.4 MB. Free memory was 28.7 MB in the beginning and 31.6 MB in the end (delta: -2.9 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 227.10 ms. Allocated memory is still 52.4 MB. Free memory was 31.0 MB in the beginning and 23.3 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 90.81 ms. Allocated memory is still 52.4 MB. Free memory was 23.3 MB in the beginning and 35.0 MB in the end (delta: -11.7 MB). Peak memory consumption was 2.6 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 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=17occurred 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, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 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...