./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test_overflow.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/ldv-regression/test_overflow.i -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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c8f9d6dff962c1f511785f72ad5dc5ece1495e04 ............................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:59:19,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:59:19,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:59:19,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:59:19,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:59:19,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:59:19,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:59:19,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:59:19,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:59:19,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:59:19,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:59:19,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:59:19,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:59:19,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:59:19,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:59:19,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:59:19,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:59:19,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:59:19,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:59:19,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:59:19,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:59:19,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:59:19,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:59:19,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:59:19,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:59:19,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:59:19,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:59:19,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:59:19,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:59:19,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:59:19,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:59:19,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:59:19,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:59:19,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:59:19,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:59:19,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:59:19,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:59:19,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:59:19,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:59:19,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:59:19,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:59:19,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:59:19,465 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:59:19,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:59:19,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:59:19,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:59:19,468 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:59:19,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:59:19,468 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:59:19,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:59:19,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:59:19,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:59:19,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:59:19,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:59:19,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:59:19,470 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:59:19,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:59:19,471 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:59:19,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:59:19,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:59:19,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:59:19,472 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:59:19,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:59:19,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:59:19,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:59:19,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:59:19,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:59:19,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:59:19,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:59:19,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:59:19,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:59:19,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(__VERIFIER_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 -> c8f9d6dff962c1f511785f72ad5dc5ece1495e04 [2020-07-28 17:59:19,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:59:19,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:59:19,808 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:59:19,810 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:59:19,810 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:59:19,811 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_overflow.i [2020-07-28 17:59:19,872 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b38dc12f/897ed63b1993405699cfc6b3d2ec7573/FLAGee443deca [2020-07-28 17:59:20,367 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:59:20,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_overflow.i [2020-07-28 17:59:20,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b38dc12f/897ed63b1993405699cfc6b3d2ec7573/FLAGee443deca [2020-07-28 17:59:20,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b38dc12f/897ed63b1993405699cfc6b3d2ec7573 [2020-07-28 17:59:20,721 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:59:20,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:59:20,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:59:20,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:59:20,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:59:20,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:59:20" (1/1) ... [2020-07-28 17:59:20,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@472db69b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:20, skipping insertion in model container [2020-07-28 17:59:20,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:59:20" (1/1) ... [2020-07-28 17:59:20,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:59:20,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:59:21,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:59:21,342 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:59:21,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:59:21,504 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:59:21,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:21 WrapperNode [2020-07-28 17:59:21,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:59:21,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:59:21,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:59:21,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:59:21,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:21" (1/1) ... [2020-07-28 17:59:21,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:21" (1/1) ... [2020-07-28 17:59:21,551 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:59:21,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:59:21,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:59:21,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:59:21,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:21" (1/1) ... [2020-07-28 17:59:21,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:21" (1/1) ... [2020-07-28 17:59:21,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:21" (1/1) ... [2020-07-28 17:59:21,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:21" (1/1) ... [2020-07-28 17:59:21,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:21" (1/1) ... [2020-07-28 17:59:21,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:21" (1/1) ... [2020-07-28 17:59:21,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:21" (1/1) ... [2020-07-28 17:59:21,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:59:21,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:59:21,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:59:21,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:59:21,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:21" (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 [2020-07-28 17:59:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:59:21,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:59:21,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:59:21,897 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:59:21,898 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 17:59:21,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:59:21 BoogieIcfgContainer [2020-07-28 17:59:21,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:59:21,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:59:21,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:59:21,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:59:21,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:59:20" (1/3) ... [2020-07-28 17:59:21,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197f709e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:59:21, skipping insertion in model container [2020-07-28 17:59:21,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:59:21" (2/3) ... [2020-07-28 17:59:21,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197f709e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:59:21, skipping insertion in model container [2020-07-28 17:59:21,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:59:21" (3/3) ... [2020-07-28 17:59:21,918 INFO L109 eAbstractionObserver]: Analyzing ICFG test_overflow.i [2020-07-28 17:59:21,930 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:59:21,937 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:59:21,948 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:59:21,971 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:59:21,971 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:59:21,971 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:59:21,972 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:59:21,972 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:59:21,972 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:59:21,972 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:59:21,972 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:59:21,984 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-07-28 17:59:21,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-07-28 17:59:21,990 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:59:21,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-07-28 17:59:21,991 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:59:21,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:59:21,996 INFO L82 PathProgramCache]: Analyzing trace with hash 28692867, now seen corresponding path program 1 times [2020-07-28 17:59:22,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:59:22,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724408500] [2020-07-28 17:59:22,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:59:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:59:22,214 INFO L280 TraceCheckUtils]: 0: Hoare triple {13#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(15);~globalSize~0 := 0; {13#true} is VALID [2020-07-28 17:59:22,216 INFO L280 TraceCheckUtils]: 1: Hoare triple {13#true} main_#in~argc, main_#in~argv.base, main_#in~argv.offset := #in~argc, #in~argv.base, #in~argv.offset;havoc main_#res;havoc main_#t~ret28, main_#t~nondet29, main_~argc, main_~argv.base, main_~argv.offset, main_~retVal~0;main_~argc := main_#in~argc;main_~argv.base, main_~argv.offset := main_#in~argv.base, main_#in~argv.offset;havoc main_~retVal~0;havoc getService_#res;havoc getService_#t~nondet31, getService_~localVar~0;getService_~localVar~0 := 999999999999;~globalSize~0 := 4;havoc getService_#t~nondet31;getService_#res := getService_~localVar~0; {15#(= 4 ~globalSize~0)} is VALID [2020-07-28 17:59:22,218 INFO L280 TraceCheckUtils]: 2: Hoare triple {15#(= 4 ~globalSize~0)} main_#t~ret28 := getService_#res;main_~retVal~0 := (if main_#t~ret28 % 4294967296 % 4294967296 <= 2147483647 then main_#t~ret28 % 4294967296 % 4294967296 else main_#t~ret28 % 4294967296 % 4294967296 - 4294967296);havoc main_#t~ret28; {15#(= 4 ~globalSize~0)} is VALID [2020-07-28 17:59:22,219 INFO L280 TraceCheckUtils]: 3: Hoare triple {15#(= 4 ~globalSize~0)} assume !(4 == ~globalSize~0); {14#false} is VALID [2020-07-28 17:59:22,219 INFO L280 TraceCheckUtils]: 4: Hoare triple {14#false} assume !false; {14#false} is VALID [2020-07-28 17:59:22,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:59:22,223 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724408500] [2020-07-28 17:59:22,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:59:22,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 17:59:22,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243408784] [2020-07-28 17:59:22,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-07-28 17:59:22,233 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:59:22,237 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 17:59:22,269 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:59:22,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 17:59:22,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:59:22,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 17:59:22,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 17:59:22,282 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2020-07-28 17:59:22,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:59:22,367 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-07-28 17:59:22,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 17:59:22,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-07-28 17:59:22,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:59:22,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 17:59:22,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2020-07-28 17:59:22,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 17:59:22,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 13 transitions. [2020-07-28 17:59:22,393 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 13 transitions. [2020-07-28 17:59:22,435 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:59:22,446 INFO L225 Difference]: With dead ends: 14 [2020-07-28 17:59:22,447 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:59:22,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 17:59:22,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:59:22,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:59:22,483 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:59:22,484 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:59:22,484 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:59:22,485 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:59:22,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:59:22,485 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:59:22,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:59:22,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:59:22,486 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:59:22,487 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:59:22,487 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:59:22,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:59:22,488 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:59:22,488 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:59:22,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:59:22,489 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:59:22,489 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:59:22,489 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:59:22,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:59:22,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:59:22,493 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-07-28 17:59:22,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:59:22,494 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:59:22,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 17:59:22,494 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:59:22,494 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:59:22,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:59:22,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:59:22,521 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:59:22,522 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:59:22,522 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:59:22,522 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:59:22,522 INFO L264 CegarLoopResult]: At program point L1628(lines 1624 1629) the Hoare annotation is: (= 4 ~globalSize~0) [2020-07-28 17:59:22,522 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1605) no Hoare annotation was computed. [2020-07-28 17:59:22,523 INFO L264 CegarLoopResult]: At program point L1620(lines 1614 1621) the Hoare annotation is: (= 4 ~globalSize~0) [2020-07-28 17:59:22,523 INFO L268 CegarLoopResult]: For program point L1618(line 1618) no Hoare annotation was computed. [2020-07-28 17:59:22,523 INFO L268 CegarLoopResult]: For program point L1605(line 1605) no Hoare annotation was computed. [2020-07-28 17:59:22,523 INFO L268 CegarLoopResult]: For program point L1603(lines 1 1629) no Hoare annotation was computed. [2020-07-28 17:59:22,529 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:59:22,529 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:59:22,530 WARN L170 areAnnotationChecker]: L1618 has no Hoare annotation [2020-07-28 17:59:22,530 WARN L170 areAnnotationChecker]: L1618 has no Hoare annotation [2020-07-28 17:59:22,531 WARN L170 areAnnotationChecker]: L1618 has no Hoare annotation [2020-07-28 17:59:22,531 WARN L170 areAnnotationChecker]: L1603 has no Hoare annotation [2020-07-28 17:59:22,531 WARN L170 areAnnotationChecker]: L1605 has no Hoare annotation [2020-07-28 17:59:22,531 WARN L170 areAnnotationChecker]: L1605 has no Hoare annotation [2020-07-28 17:59:22,531 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:59:22,532 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:59:22,532 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:59:22,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:59:22 BoogieIcfgContainer [2020-07-28 17:59:22,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:59:22,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:59:22,549 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:59:22,550 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:59:22,550 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:59:21" (3/4) ... [2020-07-28 17:59:22,554 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:59:22,571 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-07-28 17:59:22,572 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-07-28 17:59:22,573 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-07-28 17:59:22,653 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:59:22,654 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:59:22,662 INFO L168 Benchmark]: Toolchain (without parser) took 1934.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -100.0 MB). Peak memory consumption was 48.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:22,663 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:59:22,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:22,673 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:59:22,675 INFO L168 Benchmark]: Boogie Preprocessor took 23.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:22,675 INFO L168 Benchmark]: RCFGBuilder took 327.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:22,676 INFO L168 Benchmark]: TraceAbstraction took 641.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:59:22,678 INFO L168 Benchmark]: Witness Printer took 108.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:59:22,685 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 780.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 327.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 641.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. * Witness Printer took 108.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1605]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1614]: Loop Invariant Derived loop invariant: 4 == globalSize - InvariantResult [Line: 1624]: Loop Invariant Derived loop invariant: 4 == globalSize - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...