./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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/termination-crafted/Nyala-2lex-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 054e86c0b11592f66f6efc3e0f84c6f8bee49b59 ...................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:50:18,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:50:18,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:50:18,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:50:18,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:50:18,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:50:18,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:50:18,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:50:18,635 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:50:18,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:50:18,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:50:18,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:50:18,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:50:18,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:50:18,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:50:18,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:50:18,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:50:18,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:50:18,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:50:18,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:50:18,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:50:18,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:50:18,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:50:18,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:50:18,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:50:18,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:50:18,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:50:18,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:50:18,672 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:50:18,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:50:18,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:50:18,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:50:18,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:50:18,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:50:18,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:50:18,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:50:18,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:50:18,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:50:18,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:50:18,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:50:18,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:50:18,684 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-28 02:50:18,701 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:50:18,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:50:18,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:50:18,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:50:18,704 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:50:18,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:50:18,704 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:50:18,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:50:18,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:50:18,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 02:50:18,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:50:18,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 02:50:18,707 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 02:50:18,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:50:18,708 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:50:18,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 02:50:18,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:50:18,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:50:18,709 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:50:18,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:50:18,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:50:18,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:50:18,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:50:18,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 02:50:18,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:50:18,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:50:18,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 02:50:18,712 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 ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 054e86c0b11592f66f6efc3e0f84c6f8bee49b59 [2019-11-28 02:50:19,048 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:50:19,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:50:19,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:50:19,075 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:50:19,076 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:50:19,076 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c [2019-11-28 02:50:19,153 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8095af8bc/051e9c96ec1a45b88dd76e0e9bbe94c6/FLAG73dea5be4 [2019-11-28 02:50:19,653 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:50:19,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Nyala-2lex-2.c [2019-11-28 02:50:19,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8095af8bc/051e9c96ec1a45b88dd76e0e9bbe94c6/FLAG73dea5be4 [2019-11-28 02:50:20,086 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8095af8bc/051e9c96ec1a45b88dd76e0e9bbe94c6 [2019-11-28 02:50:20,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:50:20,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:50:20,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:50:20,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:50:20,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:50:20,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:50:20" (1/1) ... [2019-11-28 02:50:20,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@153481d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:20, skipping insertion in model container [2019-11-28 02:50:20,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:50:20" (1/1) ... [2019-11-28 02:50:20,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:50:20,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:50:20,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:50:20,329 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:50:20,343 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:50:20,356 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:50:20,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:20 WrapperNode [2019-11-28 02:50:20,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:50:20,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:50:20,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:50:20,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:50:20,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:20" (1/1) ... [2019-11-28 02:50:20,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:20" (1/1) ... [2019-11-28 02:50:20,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:50:20,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:50:20,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:50:20,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:50:20,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:20" (1/1) ... [2019-11-28 02:50:20,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:20" (1/1) ... [2019-11-28 02:50:20,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:20" (1/1) ... [2019-11-28 02:50:20,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:20" (1/1) ... [2019-11-28 02:50:20,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:20" (1/1) ... [2019-11-28 02:50:20,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:20" (1/1) ... [2019-11-28 02:50:20,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:20" (1/1) ... [2019-11-28 02:50:20,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:50:20,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:50:20,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:50:20,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:50:20,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:20" (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 [2019-11-28 02:50:20,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:50:20,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:50:20,682 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:50:20,682 INFO L297 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 02:50:20,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:50:20 BoogieIcfgContainer [2019-11-28 02:50:20,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:50:20,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:50:20,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:50:20,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:50:20,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:50:20" (1/3) ... [2019-11-28 02:50:20,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1332570a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:50:20, skipping insertion in model container [2019-11-28 02:50:20,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:50:20" (2/3) ... [2019-11-28 02:50:20,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1332570a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:50:20, skipping insertion in model container [2019-11-28 02:50:20,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:50:20" (3/3) ... [2019-11-28 02:50:20,692 INFO L109 eAbstractionObserver]: Analyzing ICFG Nyala-2lex-2.c [2019-11-28 02:50:20,703 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:50:20,710 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-28 02:50:20,723 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 02:50:20,751 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:50:20,751 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 02:50:20,752 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:50:20,752 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:50:20,753 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:50:20,753 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:50:20,753 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:50:20,754 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:50:20,775 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-28 02:50:20,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-28 02:50:20,782 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:50:20,784 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-28 02:50:20,785 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:50:20,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:50:20,794 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2019-11-28 02:50:20,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:50:20,807 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933691112] [2019-11-28 02:50:20,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:50:20,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:50:20,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:50:20,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933691112] [2019-11-28 02:50:20,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:50:20,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 02:50:20,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82404260] [2019-11-28 02:50:20,960 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:50:20,961 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:50:20,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:50:20,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:50:20,973 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-11-28 02:50:21,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:50:21,030 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2019-11-28 02:50:21,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:50:21,032 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-11-28 02:50:21,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:50:21,041 INFO L225 Difference]: With dead ends: 19 [2019-11-28 02:50:21,041 INFO L226 Difference]: Without dead ends: 10 [2019-11-28 02:50:21,044 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:50:21,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-28 02:50:21,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-28 02:50:21,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-28 02:50:21,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-11-28 02:50:21,073 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 3 [2019-11-28 02:50:21,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:50:21,073 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-11-28 02:50:21,073 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:50:21,073 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-11-28 02:50:21,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 02:50:21,074 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:50:21,074 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 02:50:21,074 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:50:21,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:50:21,075 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2019-11-28 02:50:21,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:50:21,075 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18428526] [2019-11-28 02:50:21,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:50:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:50:21,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:50:21,099 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18428526] [2019-11-28 02:50:21,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:50:21,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:50:21,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114310252] [2019-11-28 02:50:21,101 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:50:21,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:50:21,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:50:21,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:50:21,102 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2019-11-28 02:50:21,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:50:21,131 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2019-11-28 02:50:21,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:50:21,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-11-28 02:50:21,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:50:21,132 INFO L225 Difference]: With dead ends: 11 [2019-11-28 02:50:21,133 INFO L226 Difference]: Without dead ends: 10 [2019-11-28 02:50:21,134 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:50:21,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-28 02:50:21,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-11-28 02:50:21,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-28 02:50:21,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2019-11-28 02:50:21,137 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 4 [2019-11-28 02:50:21,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:50:21,138 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2019-11-28 02:50:21,138 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:50:21,138 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-11-28 02:50:21,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-28 02:50:21,138 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:50:21,139 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-28 02:50:21,139 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:50:21,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:50:21,139 INFO L82 PathProgramCache]: Analyzing trace with hash 925739533, now seen corresponding path program 1 times [2019-11-28 02:50:21,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:50:21,140 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385987008] [2019-11-28 02:50:21,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:50:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:50:21,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:50:21,177 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385987008] [2019-11-28 02:50:21,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:50:21,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 02:50:21,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25078263] [2019-11-28 02:50:21,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:50:21,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:50:21,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:50:21,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:50:21,179 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 3 states. [2019-11-28 02:50:21,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:50:21,204 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-11-28 02:50:21,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:50:21,205 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-28 02:50:21,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:50:21,205 INFO L225 Difference]: With dead ends: 9 [2019-11-28 02:50:21,205 INFO L226 Difference]: Without dead ends: 8 [2019-11-28 02:50:21,206 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:50:21,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-28 02:50:21,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-28 02:50:21,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-28 02:50:21,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2019-11-28 02:50:21,209 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2019-11-28 02:50:21,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:50:21,210 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2019-11-28 02:50:21,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:50:21,210 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2019-11-28 02:50:21,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 02:50:21,211 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 02:50:21,211 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 02:50:21,212 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-28 02:50:21,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 02:50:21,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1366845498, now seen corresponding path program 1 times [2019-11-28 02:50:21,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 02:50:21,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285665981] [2019-11-28 02:50:21,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 02:50:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 02:50:21,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 02:50:21,241 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285665981] [2019-11-28 02:50:21,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 02:50:21,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 02:50:21,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119477268] [2019-11-28 02:50:21,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 02:50:21,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 02:50:21,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 02:50:21,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:50:21,243 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 3 states. [2019-11-28 02:50:21,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 02:50:21,256 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-11-28 02:50:21,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 02:50:21,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-11-28 02:50:21,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 02:50:21,257 INFO L225 Difference]: With dead ends: 9 [2019-11-28 02:50:21,257 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 02:50:21,258 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 02:50:21,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 02:50:21,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 02:50:21,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 02:50:21,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 02:50:21,259 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-28 02:50:21,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 02:50:21,260 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 02:50:21,260 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 02:50:21,260 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 02:50:21,260 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 02:50:21,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 02:50:21,303 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-28 02:50:21,304 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 02:50:21,304 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-28 02:50:21,304 INFO L246 CegarLoopResult]: For program point L21(lines 21 24) no Hoare annotation was computed. [2019-11-28 02:50:21,305 INFO L242 CegarLoopResult]: At program point L21-2(lines 19 25) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2019-11-28 02:50:21,305 INFO L246 CegarLoopResult]: For program point L19-2(lines 19 25) no Hoare annotation was computed. [2019-11-28 02:50:21,305 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-28 02:50:21,305 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2019-11-28 02:50:21,305 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 02:50:21,306 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 02:50:21,306 INFO L242 CegarLoopResult]: At program point L26(lines 15 27) the Hoare annotation is: (<= ULTIMATE.start_main_~y~0 2147483647) [2019-11-28 02:50:21,306 INFO L246 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2019-11-28 02:50:21,306 INFO L246 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-11-28 02:50:21,306 INFO L246 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-28 02:50:21,306 INFO L246 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-11-28 02:50:21,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:50:21 BoogieIcfgContainer [2019-11-28 02:50:21,337 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:50:21,337 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:50:21,337 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:50:21,338 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:50:21,338 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:50:20" (3/4) ... [2019-11-28 02:50:21,342 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 02:50:21,358 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 02:50:21,358 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 02:50:21,403 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:50:21,403 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:50:21,406 INFO L168 Benchmark]: Toolchain (without parser) took 1314.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -106.0 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:21,407 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:50:21,408 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.52 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:21,409 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -180.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:21,409 INFO L168 Benchmark]: Boogie Preprocessor took 23.05 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. [2019-11-28 02:50:21,410 INFO L168 Benchmark]: RCFGBuilder took 214.79 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: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:21,411 INFO L168 Benchmark]: TraceAbstraction took 652.13 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: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. [2019-11-28 02:50:21,412 INFO L168 Benchmark]: Witness Printer took 66.24 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. [2019-11-28 02:50:21,416 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 264.52 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 88.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -180.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.05 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 214.79 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: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 652.13 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: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. * Witness Printer took 66.24 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: y <= 2147483647 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 15 SDslu, 3 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...