./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: 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 /storage/repos/svcomp/c/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f1fbfc504f7d34c3bc972667a1559aaf9ac2c9a ......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 11:25:41,751 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 11:25:41,752 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 11:25:41,766 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 11:25:41,766 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 11:25:41,767 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 11:25:41,769 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 11:25:41,772 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 11:25:41,773 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 11:25:41,775 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 11:25:41,777 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 11:25:41,778 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 11:25:41,779 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 11:25:41,780 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 11:25:41,783 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 11:25:41,784 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 11:25:41,785 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 11:25:41,787 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 11:25:41,797 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 11:25:41,802 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 11:25:41,803 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 11:25:41,804 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 11:25:41,809 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 11:25:41,809 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 11:25:41,809 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 11:25:41,810 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 11:25:41,813 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 11:25:41,814 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 11:25:41,815 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 11:25:41,817 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 11:25:41,817 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 11:25:41,818 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 11:25:41,818 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 11:25:41,818 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 11:25:41,819 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 11:25:41,820 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 11:25:41,820 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 11:25:41,843 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 11:25:41,844 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 11:25:41,845 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 11:25:41,845 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 11:25:41,845 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 11:25:41,846 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 11:25:41,846 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 11:25:41,847 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 11:25:41,847 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 11:25:41,847 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 11:25:41,847 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 11:25:41,847 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 11:25:41,848 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 11:25:41,848 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 11:25:41,848 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 11:25:41,848 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 11:25:41,848 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 11:25:41,849 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 11:25:41,850 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 11:25:41,850 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 11:25:41,850 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 11:25:41,850 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 11:25:41,851 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 11:25:41,851 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 11:25:41,851 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 11:25:41,851 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 11:25:41,851 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 11:25:41,852 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 11:25:41,853 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> 2f1fbfc504f7d34c3bc972667a1559aaf9ac2c9a [2019-01-12 11:25:41,910 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 11:25:41,926 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 11:25:41,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 11:25:41,936 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 11:25:41,936 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 11:25:41,937 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c [2019-01-12 11:25:42,002 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e9ca3e0/1de7a916f7cb4e3e8b61142d09982b86/FLAGcbb2fc895 [2019-01-12 11:25:42,433 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 11:25:42,434 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-lit/jm2006_true-unreach-call.c.i.v+cfa-reducer.c [2019-01-12 11:25:42,438 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e9ca3e0/1de7a916f7cb4e3e8b61142d09982b86/FLAGcbb2fc895 [2019-01-12 11:25:42,834 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45e9ca3e0/1de7a916f7cb4e3e8b61142d09982b86 [2019-01-12 11:25:42,836 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 11:25:42,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 11:25:42,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 11:25:42,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 11:25:42,842 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 11:25:42,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 11:25:42" (1/1) ... [2019-01-12 11:25:42,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f8b7262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:42, skipping insertion in model container [2019-01-12 11:25:42,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 11:25:42" (1/1) ... [2019-01-12 11:25:42,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 11:25:42,869 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 11:25:43,042 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 11:25:43,047 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 11:25:43,067 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 11:25:43,081 INFO L195 MainTranslator]: Completed translation [2019-01-12 11:25:43,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:43 WrapperNode [2019-01-12 11:25:43,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 11:25:43,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 11:25:43,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 11:25:43,084 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 11:25:43,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:43" (1/1) ... [2019-01-12 11:25:43,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:43" (1/1) ... [2019-01-12 11:25:43,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 11:25:43,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 11:25:43,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 11:25:43,118 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 11:25:43,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:43" (1/1) ... [2019-01-12 11:25:43,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:43" (1/1) ... [2019-01-12 11:25:43,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:43" (1/1) ... [2019-01-12 11:25:43,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:43" (1/1) ... [2019-01-12 11:25:43,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:43" (1/1) ... [2019-01-12 11:25:43,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:43" (1/1) ... [2019-01-12 11:25:43,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:43" (1/1) ... [2019-01-12 11:25:43,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 11:25:43,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 11:25:43,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 11:25:43,138 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 11:25:43,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:43" (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 [2019-01-12 11:25:43,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 11:25:43,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 11:25:43,498 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 11:25:43,498 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-12 11:25:43,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 11:25:43 BoogieIcfgContainer [2019-01-12 11:25:43,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 11:25:43,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 11:25:43,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 11:25:43,505 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 11:25:43,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 11:25:42" (1/3) ... [2019-01-12 11:25:43,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55747ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 11:25:43, skipping insertion in model container [2019-01-12 11:25:43,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:43" (2/3) ... [2019-01-12 11:25:43,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55747ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 11:25:43, skipping insertion in model container [2019-01-12 11:25:43,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 11:25:43" (3/3) ... [2019-01-12 11:25:43,509 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_true-unreach-call.c.i.v+cfa-reducer.c [2019-01-12 11:25:43,521 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 11:25:43,530 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 11:25:43,548 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 11:25:43,591 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 11:25:43,593 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 11:25:43,593 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 11:25:43,593 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 11:25:43,593 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 11:25:43,593 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 11:25:43,594 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 11:25:43,594 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 11:25:43,594 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 11:25:43,610 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-01-12 11:25:43,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-12 11:25:43,616 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 11:25:43,617 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 11:25:43,619 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 11:25:43,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 11:25:43,624 INFO L82 PathProgramCache]: Analyzing trace with hash 179596396, now seen corresponding path program 1 times [2019-01-12 11:25:43,626 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 11:25:43,627 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 11:25:43,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:25:43,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:25:43,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:25:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:25:43,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:25:43,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 11:25:43,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-12 11:25:43,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 11:25:43,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 11:25:43,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-12 11:25:43,904 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 5 states. [2019-01-12 11:25:44,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 11:25:44,233 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-01-12 11:25:44,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-12 11:25:44,235 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-01-12 11:25:44,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 11:25:44,243 INFO L225 Difference]: With dead ends: 29 [2019-01-12 11:25:44,243 INFO L226 Difference]: Without dead ends: 10 [2019-01-12 11:25:44,246 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-01-12 11:25:44,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-01-12 11:25:44,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-01-12 11:25:44,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-01-12 11:25:44,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-01-12 11:25:44,275 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2019-01-12 11:25:44,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 11:25:44,276 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-01-12 11:25:44,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 11:25:44,276 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-01-12 11:25:44,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-12 11:25:44,277 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 11:25:44,277 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 11:25:44,277 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 11:25:44,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 11:25:44,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1270581676, now seen corresponding path program 1 times [2019-01-12 11:25:44,278 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 11:25:44,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 11:25:44,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:25:44,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:25:44,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:25:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:25:44,772 WARN L181 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 14 [2019-01-12 11:25:44,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:25:44,892 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-12 11:25:44,893 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-12 11:25:44,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:25:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:25:44,940 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 11:25:45,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:25:45,139 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-12 11:25:45,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2019-01-12 11:25:45,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-12 11:25:45,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-12 11:25:45,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-01-12 11:25:45,141 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 8 states. [2019-01-12 11:25:45,485 WARN L181 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2019-01-12 11:25:45,719 WARN L181 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2019-01-12 11:25:45,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 11:25:45,768 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2019-01-12 11:25:45,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-12 11:25:45,769 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-01-12 11:25:45,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 11:25:45,769 INFO L225 Difference]: With dead ends: 18 [2019-01-12 11:25:45,770 INFO L226 Difference]: Without dead ends: 12 [2019-01-12 11:25:45,772 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-01-12 11:25:45,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-01-12 11:25:45,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-01-12 11:25:45,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-12 11:25:45,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-01-12 11:25:45,778 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2019-01-12 11:25:45,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 11:25:45,779 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-01-12 11:25:45,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-12 11:25:45,779 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-01-12 11:25:45,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-12 11:25:45,780 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 11:25:45,780 INFO L402 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 11:25:45,780 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 11:25:45,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 11:25:45,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1196220844, now seen corresponding path program 2 times [2019-01-12 11:25:45,781 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 11:25:45,781 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 11:25:45,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:25:45,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:25:45,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:25:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:25:46,195 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-12 11:25:46,196 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-12 11:25:46,196 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-12 11:25:46,208 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-12 11:25:46,223 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-01-12 11:25:46,223 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-12 11:25:46,226 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 11:25:46,380 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:25:46,403 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-12 11:25:46,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 11 [2019-01-12 11:25:46,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-01-12 11:25:46,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-01-12 11:25:46,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-01-12 11:25:46,405 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 11 states. [2019-01-12 11:25:46,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 11:25:46,656 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-01-12 11:25:46,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-01-12 11:25:46,657 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 11 [2019-01-12 11:25:46,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 11:25:46,657 INFO L225 Difference]: With dead ends: 15 [2019-01-12 11:25:46,657 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 11:25:46,660 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2019-01-12 11:25:46,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 11:25:46,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 11:25:46,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 11:25:46,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 11:25:46,661 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-01-12 11:25:46,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 11:25:46,661 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 11:25:46,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-01-12 11:25:46,662 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 11:25:46,664 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 11:25:46,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 11:25:46,874 WARN L181 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 9 [2019-01-12 11:25:46,877 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 11:25:46,877 INFO L451 ceAbstractionStarter]: At program point L60(lines 8 65) the Hoare annotation is: true [2019-01-12 11:25:46,877 INFO L448 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2019-01-12 11:25:46,878 INFO L448 ceAbstractionStarter]: For program point L46(lines 46 55) no Hoare annotation was computed. [2019-01-12 11:25:46,878 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2019-01-12 11:25:46,878 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-12 11:25:46,879 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 11:25:46,880 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 11:25:46,880 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 63) no Hoare annotation was computed. [2019-01-12 11:25:46,880 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 64) no Hoare annotation was computed. [2019-01-12 11:25:46,880 INFO L448 ceAbstractionStarter]: For program point L39(lines 39 61) no Hoare annotation was computed. [2019-01-12 11:25:46,881 INFO L444 ceAbstractionStarter]: At program point L35(lines 25 63) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__y~0)) (.cse0 (+ ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2019-01-12 11:25:46,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 11:25:46 BoogieIcfgContainer [2019-01-12 11:25:46,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 11:25:46,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 11:25:46,894 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 11:25:46,894 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 11:25:46,895 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 11:25:43" (3/4) ... [2019-01-12 11:25:46,897 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 11:25:46,906 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-12 11:25:46,907 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-12 11:25:46,968 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 11:25:46,969 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 11:25:46,970 INFO L168 Benchmark]: Toolchain (without parser) took 4133.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 951.4 MB in the beginning and 977.8 MB in the end (delta: -26.4 MB). Peak memory consumption was 119.9 MB. Max. memory is 11.5 GB. [2019-01-12 11:25:46,971 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 11:25:46,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.90 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 11:25:46,978 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.67 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 11:25:46,978 INFO L168 Benchmark]: Boogie Preprocessor took 18.78 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 11:25:46,979 INFO L168 Benchmark]: RCFGBuilder took 362.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2019-01-12 11:25:46,979 INFO L168 Benchmark]: TraceAbstraction took 3392.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.4 MB in the end (delta: 135.5 MB). Peak memory consumption was 135.5 MB. Max. memory is 11.5 GB. [2019-01-12 11:25:46,980 INFO L168 Benchmark]: Witness Printer took 75.59 ms. Allocated memory is still 1.2 GB. Free memory was 984.4 MB in the beginning and 977.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-01-12 11:25:46,984 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 243.90 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 34.67 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.78 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 362.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -179.3 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3392.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.4 MB in the end (delta: 135.5 MB). Peak memory consumption was 135.5 MB. Max. memory is 11.5 GB. * Witness Printer took 75.59 ms. Allocated memory is still 1.2 GB. Free memory was 984.4 MB in the beginning and 977.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: 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: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: main__x + main__j <= main__i + main__y && main__i + main__y <= main__x + main__j - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. SAFE Result, 3.3s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 30 SDslu, 52 SDs, 0 SdLazy, 127 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 15 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 10 NumberOfFragments, 16 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 106 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 2890 SizeOfPredicates, 12 NumberOfNonLiveVariables, 98 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/14 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...