./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loops/lu.cmp_true-unreach-call.i --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/loops/lu.cmp_true-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 329fe1d7b64fa92ea293b849994df7355375c757 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 17:05:43,540 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 17:05:43,541 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 17:05:43,555 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 17:05:43,555 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 17:05:43,557 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 17:05:43,560 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 17:05:43,563 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 17:05:43,566 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 17:05:43,568 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 17:05:43,571 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 17:05:43,572 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 17:05:43,572 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 17:05:43,575 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 17:05:43,582 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 17:05:43,582 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 17:05:43,583 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 17:05:43,586 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 17:05:43,592 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 17:05:43,596 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 17:05:43,597 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 17:05:43,599 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 17:05:43,603 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 17:05:43,604 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 17:05:43,604 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 17:05:43,605 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 17:05:43,607 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 17:05:43,607 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 17:05:43,608 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 17:05:43,609 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 17:05:43,609 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 17:05:43,610 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 17:05:43,610 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 17:05:43,611 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 17:05:43,611 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 17:05:43,613 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 17:05:43,613 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 17:05:43,631 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 17:05:43,631 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 17:05:43,633 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 17:05:43,633 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 17:05:43,634 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 17:05:43,635 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 17:05:43,635 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 17:05:43,635 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 17:05:43,635 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 17:05:43,635 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 17:05:43,636 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 17:05:43,636 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 17:05:43,636 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 17:05:43,636 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 17:05:43,636 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 17:05:43,636 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 17:05:43,639 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 17:05:43,639 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 17:05:43,639 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 17:05:43,640 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 17:05:43,640 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:05:43,640 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 17:05:43,640 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 17:05:43,641 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 17:05:43,641 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 17:05:43,641 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 17:05:43,641 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 17:05:43,641 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 -> 329fe1d7b64fa92ea293b849994df7355375c757 [2019-01-14 17:05:43,707 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 17:05:43,720 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 17:05:43,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 17:05:43,725 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 17:05:43,725 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 17:05:43,726 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/lu.cmp_true-unreach-call.i [2019-01-14 17:05:43,782 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c32895c4f/63290e0cef6d4ffe9442638424dbb13e/FLAG0ff496341 [2019-01-14 17:05:44,212 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 17:05:44,217 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/lu.cmp_true-unreach-call.i [2019-01-14 17:05:44,229 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c32895c4f/63290e0cef6d4ffe9442638424dbb13e/FLAG0ff496341 [2019-01-14 17:05:44,249 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c32895c4f/63290e0cef6d4ffe9442638424dbb13e [2019-01-14 17:05:44,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 17:05:44,255 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 17:05:44,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 17:05:44,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 17:05:44,262 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 17:05:44,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:05:44" (1/1) ... [2019-01-14 17:05:44,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72a0c3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:05:44, skipping insertion in model container [2019-01-14 17:05:44,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:05:44" (1/1) ... [2019-01-14 17:05:44,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 17:05:44,297 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 17:05:44,491 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:05:44,633 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 17:05:44,683 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:05:44,950 INFO L195 MainTranslator]: Completed translation [2019-01-14 17:05:44,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:05:44 WrapperNode [2019-01-14 17:05:44,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 17:05:44,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 17:05:44,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 17:05:44,951 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 17:05:44,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:05:44" (1/1) ... [2019-01-14 17:05:45,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:05:44" (1/1) ... [2019-01-14 17:05:45,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 17:05:45,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 17:05:45,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 17:05:45,185 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 17:05:45,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:05:44" (1/1) ... [2019-01-14 17:05:45,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:05:44" (1/1) ... [2019-01-14 17:05:45,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:05:44" (1/1) ... [2019-01-14 17:05:45,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:05:44" (1/1) ... [2019-01-14 17:05:45,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:05:44" (1/1) ... [2019-01-14 17:05:45,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:05:44" (1/1) ... [2019-01-14 17:05:45,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:05:44" (1/1) ... [2019-01-14 17:05:45,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 17:05:45,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 17:05:45,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 17:05:45,351 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 17:05:45,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:05:44" (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 [2019-01-14 17:05:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-01-14 17:05:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-01-14 17:05:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 17:05:45,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 17:05:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-01-14 17:05:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 17:05:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 17:05:49,418 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 17:05:49,419 INFO L286 CfgBuilder]: Removed 21 assue(true) statements. [2019-01-14 17:05:49,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:05:49 BoogieIcfgContainer [2019-01-14 17:05:49,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 17:05:49,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 17:05:49,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 17:05:49,425 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 17:05:49,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 05:05:44" (1/3) ... [2019-01-14 17:05:49,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6373713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:05:49, skipping insertion in model container [2019-01-14 17:05:49,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:05:44" (2/3) ... [2019-01-14 17:05:49,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6373713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:05:49, skipping insertion in model container [2019-01-14 17:05:49,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:05:49" (3/3) ... [2019-01-14 17:05:49,431 INFO L112 eAbstractionObserver]: Analyzing ICFG lu.cmp_true-unreach-call.i [2019-01-14 17:05:49,441 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 17:05:49,452 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 17:05:49,468 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 17:05:49,499 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 17:05:49,500 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 17:05:49,500 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 17:05:49,501 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 17:05:49,502 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 17:05:49,502 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 17:05:49,502 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 17:05:49,502 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 17:05:49,503 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 17:05:49,519 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2019-01-14 17:05:49,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-14 17:05:49,526 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:05:49,528 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:05:49,530 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:05:49,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:05:49,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1809811384, now seen corresponding path program 1 times [2019-01-14 17:05:49,538 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:05:49,539 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:05:49,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:05:49,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:05:49,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:05:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:05:50,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:05:50,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:05:50,278 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 17:05:50,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 17:05:50,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 17:05:50,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-14 17:05:50,301 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 4 states. [2019-01-14 17:05:50,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:05:50,591 INFO L93 Difference]: Finished difference Result 102 states and 159 transitions. [2019-01-14 17:05:50,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 17:05:50,593 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-01-14 17:05:50,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:05:50,604 INFO L225 Difference]: With dead ends: 102 [2019-01-14 17:05:50,605 INFO L226 Difference]: Without dead ends: 17 [2019-01-14 17:05:50,609 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-14 17:05:50,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-01-14 17:05:50,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2019-01-14 17:05:50,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-01-14 17:05:50,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-01-14 17:05:50,643 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 7 [2019-01-14 17:05:50,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:05:50,644 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-01-14 17:05:50,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 17:05:50,644 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-01-14 17:05:50,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-14 17:05:50,645 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:05:50,645 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:05:50,645 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:05:50,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:05:50,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1948892579, now seen corresponding path program 1 times [2019-01-14 17:05:50,646 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:05:50,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:05:50,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:05:50,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:05:50,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:05:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:05:51,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:05:51,129 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:05:51,129 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 [2019-01-14 17:05:51,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:05:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:05:52,147 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:05:52,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:05:52,460 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:05:52,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-01-14 17:05:52,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-14 17:05:52,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-14 17:05:52,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2019-01-14 17:05:52,466 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 7 states. [2019-01-14 17:05:52,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:05:52,713 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2019-01-14 17:05:52,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 17:05:52,714 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2019-01-14 17:05:52,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:05:52,715 INFO L225 Difference]: With dead ends: 33 [2019-01-14 17:05:52,715 INFO L226 Difference]: Without dead ends: 21 [2019-01-14 17:05:52,716 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2019-01-14 17:05:52,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-01-14 17:05:52,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2019-01-14 17:05:52,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-01-14 17:05:52,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-01-14 17:05:52,721 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 11 [2019-01-14 17:05:52,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:05:52,721 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-01-14 17:05:52,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-14 17:05:52,721 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-01-14 17:05:52,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-01-14 17:05:52,723 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:05:52,723 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:05:52,723 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:05:52,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:05:52,724 INFO L82 PathProgramCache]: Analyzing trace with hash 116728450, now seen corresponding path program 2 times [2019-01-14 17:05:52,724 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:05:52,724 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:05:52,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:05:52,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:05:52,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:05:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:05:53,114 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:05:53,114 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:05:53,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 17:05:53,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 17:05:53,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 17:05:53,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-14 17:05:53,117 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 4 states. [2019-01-14 17:05:53,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:05:53,336 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2019-01-14 17:05:53,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 17:05:53,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-01-14 17:05:53,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:05:53,339 INFO L225 Difference]: With dead ends: 50 [2019-01-14 17:05:53,339 INFO L226 Difference]: Without dead ends: 34 [2019-01-14 17:05:53,340 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-14 17:05:53,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-01-14 17:05:53,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 25. [2019-01-14 17:05:53,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-01-14 17:05:53,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2019-01-14 17:05:53,346 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 15 [2019-01-14 17:05:53,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:05:53,346 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2019-01-14 17:05:53,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 17:05:53,347 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2019-01-14 17:05:53,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-01-14 17:05:53,347 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:05:53,347 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:05:53,347 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:05:53,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:05:53,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1891735812, now seen corresponding path program 1 times [2019-01-14 17:05:53,349 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:05:53,350 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:05:53,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:05:53,350 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 17:05:53,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:05:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:05:54,021 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:05:54,021 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:05:54,021 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 [2019-01-14 17:05:54,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:05:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:05:54,748 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:05:54,859 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:05:54,882 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:05:54,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-01-14 17:05:54,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-01-14 17:05:54,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-01-14 17:05:54,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2019-01-14 17:05:54,884 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand 9 states. [2019-01-14 17:05:55,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:05:55,030 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2019-01-14 17:05:55,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-14 17:05:55,032 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2019-01-14 17:05:55,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:05:55,033 INFO L225 Difference]: With dead ends: 62 [2019-01-14 17:05:55,033 INFO L226 Difference]: Without dead ends: 39 [2019-01-14 17:05:55,035 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2019-01-14 17:05:55,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-01-14 17:05:55,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2019-01-14 17:05:55,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-01-14 17:05:55,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2019-01-14 17:05:55,041 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 15 [2019-01-14 17:05:55,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:05:55,041 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2019-01-14 17:05:55,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-01-14 17:05:55,043 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2019-01-14 17:05:55,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-14 17:05:55,043 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:05:55,043 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:05:55,044 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:05:55,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:05:55,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1388100565, now seen corresponding path program 2 times [2019-01-14 17:05:55,045 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:05:55,045 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:05:55,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:05:55,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:05:55,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:05:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:05:55,565 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:05:55,566 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:05:55,566 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 17:05:55,576 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-14 17:05:56,243 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-01-14 17:05:56,244 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-14 17:05:56,260 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:05:56,356 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-01-14 17:05:56,379 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-14 17:05:56,380 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2019-01-14 17:05:56,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-01-14 17:05:56,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-01-14 17:05:56,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-01-14 17:05:56,381 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 9 states. [2019-01-14 17:05:57,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:05:57,468 INFO L93 Difference]: Finished difference Result 175 states and 211 transitions. [2019-01-14 17:05:57,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-01-14 17:05:57,469 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2019-01-14 17:05:57,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:05:57,473 INFO L225 Difference]: With dead ends: 175 [2019-01-14 17:05:57,474 INFO L226 Difference]: Without dead ends: 144 [2019-01-14 17:05:57,475 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=225, Invalid=477, Unknown=0, NotChecked=0, Total=702 [2019-01-14 17:05:57,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-01-14 17:05:57,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 72. [2019-01-14 17:05:57,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-01-14 17:05:57,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2019-01-14 17:05:57,493 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2019-01-14 17:05:57,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:05:57,494 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2019-01-14 17:05:57,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-01-14 17:05:57,494 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2019-01-14 17:05:57,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-01-14 17:05:57,496 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:05:57,496 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 8, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:05:57,496 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:05:57,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:05:57,497 INFO L82 PathProgramCache]: Analyzing trace with hash 246668860, now seen corresponding path program 1 times [2019-01-14 17:05:57,497 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:05:57,497 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:05:57,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:05:57,498 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 17:05:57,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:05:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:05:58,065 WARN L181 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2019-01-14 17:05:58,254 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-01-14 17:05:58,255 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:05:58,255 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 17:05:58,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:05:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:05:58,973 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:05:59,174 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 74 proven. 28 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-01-14 17:05:59,206 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:05:59,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 12 [2019-01-14 17:05:59,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-01-14 17:05:59,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-01-14 17:05:59,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-01-14 17:05:59,208 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand 12 states. [2019-01-14 17:05:59,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:05:59,789 INFO L93 Difference]: Finished difference Result 195 states and 225 transitions. [2019-01-14 17:05:59,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-01-14 17:05:59,790 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2019-01-14 17:05:59,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:05:59,791 INFO L225 Difference]: With dead ends: 195 [2019-01-14 17:05:59,791 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 17:05:59,793 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=202, Invalid=398, Unknown=0, NotChecked=0, Total=600 [2019-01-14 17:05:59,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 17:05:59,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 17:05:59,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 17:05:59,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 17:05:59,794 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2019-01-14 17:05:59,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:05:59,795 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 17:05:59,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-01-14 17:05:59,795 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 17:05:59,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 17:05:59,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 17:06:00,162 INFO L448 ceAbstractionStarter]: For program point L44-2(lines 44 62) no Hoare annotation was computed. [2019-01-14 17:06:00,162 INFO L444 ceAbstractionStarter]: At program point L44-3(lines 44 62) the Hoare annotation is: (<= 5 ULTIMATE.start_main_~n~0) [2019-01-14 17:06:00,162 INFO L448 ceAbstractionStarter]: For program point L44-4(lines 44 62) no Hoare annotation was computed. [2019-01-14 17:06:00,162 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 17:06:00,163 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 17:06:00,163 INFO L444 ceAbstractionStarter]: At program point L37(lines 18 38) the Hoare annotation is: (<= 5 ULTIMATE.start_main_~n~0) [2019-01-14 17:06:00,163 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-01-14 17:06:00,164 INFO L444 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~n~0 5) (<= ULTIMATE.start_main_~i~0 5) (= ULTIMATE.start___VERIFIER_assert_~cond 1) (<= 5 ULTIMATE.start_main_~n~0)) [2019-01-14 17:06:00,164 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2019-01-14 17:06:00,164 INFO L448 ceAbstractionStarter]: For program point L29-2(line 29) no Hoare annotation was computed. [2019-01-14 17:06:00,164 INFO L444 ceAbstractionStarter]: At program point L79(lines 39 80) the Hoare annotation is: (<= 5 ULTIMATE.start_main_~n~0) [2019-01-14 17:06:00,164 INFO L448 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2019-01-14 17:06:00,164 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-01-14 17:06:00,165 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-01-14 17:06:00,165 INFO L448 ceAbstractionStarter]: For program point L55-2(lines 55 61) no Hoare annotation was computed. [2019-01-14 17:06:00,165 INFO L444 ceAbstractionStarter]: At program point L55-3(lines 55 61) the Hoare annotation is: (<= 5 ULTIMATE.start_main_~n~0) [2019-01-14 17:06:00,165 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2019-01-14 17:06:00,165 INFO L448 ceAbstractionStarter]: For program point L47-2(lines 47 54) no Hoare annotation was computed. [2019-01-14 17:06:00,165 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2019-01-14 17:06:00,165 INFO L444 ceAbstractionStarter]: At program point L47-3(lines 47 54) the Hoare annotation is: (<= 5 ULTIMATE.start_main_~n~0) [2019-01-14 17:06:00,165 INFO L448 ceAbstractionStarter]: For program point L47-4(lines 47 54) no Hoare annotation was computed. [2019-01-14 17:06:00,166 INFO L448 ceAbstractionStarter]: For program point L72-2(lines 72 78) no Hoare annotation was computed. [2019-01-14 17:06:00,167 INFO L444 ceAbstractionStarter]: At program point L72-3(lines 72 78) the Hoare annotation is: (<= 5 ULTIMATE.start_main_~n~0) [2019-01-14 17:06:00,167 INFO L448 ceAbstractionStarter]: For program point L72-4(lines 72 78) no Hoare annotation was computed. [2019-01-14 17:06:00,167 INFO L448 ceAbstractionStarter]: For program point L64-2(lines 64 70) no Hoare annotation was computed. [2019-01-14 17:06:00,167 INFO L444 ceAbstractionStarter]: At program point L64-3(lines 64 70) the Hoare annotation is: (<= 5 ULTIMATE.start_main_~n~0) [2019-01-14 17:06:00,167 INFO L448 ceAbstractionStarter]: For program point L64-4(lines 64 70) no Hoare annotation was computed. [2019-01-14 17:06:00,167 INFO L448 ceAbstractionStarter]: For program point L23-2(lines 23 34) no Hoare annotation was computed. [2019-01-14 17:06:00,168 INFO L444 ceAbstractionStarter]: At program point L23-3(lines 23 34) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 5)) (.cse1 (<= 5 ULTIMATE.start_main_~n~0))) (or (and (<= ULTIMATE.start_main_~i~0 0) .cse0 .cse1) (and .cse0 (= ULTIMATE.start___VERIFIER_assert_~cond 1) .cse1))) [2019-01-14 17:06:00,168 INFO L448 ceAbstractionStarter]: For program point L23-4(lines 23 34) no Hoare annotation was computed. [2019-01-14 17:06:00,168 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-14 17:06:00,168 INFO L444 ceAbstractionStarter]: At program point L16(lines 11 17) the Hoare annotation is: (<= 5 ULTIMATE.start_main_~n~0) [2019-01-14 17:06:00,168 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 17:06:00,168 INFO L448 ceAbstractionStarter]: For program point L58-2(lines 58 59) no Hoare annotation was computed. [2019-01-14 17:06:00,169 INFO L444 ceAbstractionStarter]: At program point L58-3(lines 58 59) the Hoare annotation is: (<= 5 ULTIMATE.start_main_~n~0) [2019-01-14 17:06:00,171 INFO L448 ceAbstractionStarter]: For program point L58-4(lines 58 59) no Hoare annotation was computed. [2019-01-14 17:06:00,172 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 52) no Hoare annotation was computed. [2019-01-14 17:06:00,172 INFO L448 ceAbstractionStarter]: For program point L50-1(lines 50 52) no Hoare annotation was computed. [2019-01-14 17:06:00,172 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 76) no Hoare annotation was computed. [2019-01-14 17:06:00,172 INFO L444 ceAbstractionStarter]: At program point L75-3(lines 75 76) the Hoare annotation is: (<= 5 ULTIMATE.start_main_~n~0) [2019-01-14 17:06:00,172 INFO L448 ceAbstractionStarter]: For program point L75-4(lines 75 76) no Hoare annotation was computed. [2019-01-14 17:06:00,172 INFO L448 ceAbstractionStarter]: For program point L67-2(lines 67 68) no Hoare annotation was computed. [2019-01-14 17:06:00,172 INFO L444 ceAbstractionStarter]: At program point L67-3(lines 67 68) the Hoare annotation is: (<= 5 ULTIMATE.start_main_~n~0) [2019-01-14 17:06:00,172 INFO L448 ceAbstractionStarter]: For program point L67-4(lines 67 68) no Hoare annotation was computed. [2019-01-14 17:06:00,172 INFO L448 ceAbstractionStarter]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2019-01-14 17:06:00,174 INFO L444 ceAbstractionStarter]: At program point L26-3(lines 26 31) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~n~0 5)) (.cse1 (<= 5 ULTIMATE.start_main_~n~0))) (or (and .cse0 (<= ULTIMATE.start_main_~i~0 5) (= ULTIMATE.start___VERIFIER_assert_~cond 1) .cse1) (and (<= ULTIMATE.start_main_~i~0 0) .cse0 .cse1))) [2019-01-14 17:06:00,175 INFO L448 ceAbstractionStarter]: For program point L26-4(lines 26 31) no Hoare annotation was computed. [2019-01-14 17:06:00,175 INFO L448 ceAbstractionStarter]: For program point L51-2(lines 51 52) no Hoare annotation was computed. [2019-01-14 17:06:00,175 INFO L444 ceAbstractionStarter]: At program point L51-3(lines 51 52) the Hoare annotation is: (<= 5 ULTIMATE.start_main_~n~0) [2019-01-14 17:06:00,175 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-01-14 17:06:00,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 05:06:00 BoogieIcfgContainer [2019-01-14 17:06:00,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 17:06:00,195 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 17:06:00,195 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 17:06:00,195 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 17:06:00,195 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:05:49" (3/4) ... [2019-01-14 17:06:00,201 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 17:06:00,278 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-14 17:06:00,284 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-14 17:06:00,603 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 17:06:00,603 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 17:06:00,604 INFO L168 Benchmark]: Toolchain (without parser) took 16350.16 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 431.0 MB). Free memory was 951.4 MB in the beginning and 1.4 GB in the end (delta: -400.6 MB). Peak memory consumption was 473.8 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:00,608 INFO L168 Benchmark]: CDTParser took 0.16 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. [2019-01-14 17:06:00,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -210.8 MB). Peak memory consumption was 71.8 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:00,609 INFO L168 Benchmark]: Boogie Procedure Inliner took 233.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:00,609 INFO L168 Benchmark]: Boogie Preprocessor took 165.96 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: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:00,609 INFO L168 Benchmark]: RCFGBuilder took 4069.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 86.5 MB). Free memory was 1.1 GB in the beginning and 947.8 MB in the end (delta: 171.0 MB). Peak memory consumption was 306.3 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:00,611 INFO L168 Benchmark]: TraceAbstraction took 10772.35 ms. Allocated memory was 1.3 GB in the beginning and 1.4 GB in the end (delta: 84.4 MB). Free memory was 947.8 MB in the beginning and 823.6 MB in the end (delta: 124.2 MB). Peak memory consumption was 208.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:06:00,612 INFO L168 Benchmark]: Witness Printer took 409.05 ms. Allocated memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: 84.9 MB). Free memory was 823.6 MB in the beginning and 1.4 GB in the end (delta: -528.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:06:00,615 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 694.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -210.8 MB). Peak memory consumption was 71.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 233.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 165.96 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: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 4069.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 86.5 MB). Free memory was 1.1 GB in the beginning and 947.8 MB in the end (delta: 171.0 MB). Peak memory consumption was 306.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10772.35 ms. Allocated memory was 1.3 GB in the beginning and 1.4 GB in the end (delta: 84.4 MB). Free memory was 947.8 MB in the beginning and 823.6 MB in the end (delta: 124.2 MB). Peak memory consumption was 208.7 MB. Max. memory is 11.5 GB. * Witness Printer took 409.05 ms. Allocated memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: 84.9 MB). Free memory was 823.6 MB in the beginning and 1.4 GB in the end (delta: -528.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 39]: Loop Invariant Derived loop invariant: 5 <= n - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 5 <= n - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 5 <= n - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 5 <= n - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 5 <= n - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 5 <= n - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 5 <= n - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: 5 <= n - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((i <= 0 && n <= 5) && 5 <= n) || ((n <= 5 && cond == 1) && 5 <= n) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 5 <= n - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 5 <= n - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 5 <= n - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (((n <= 5 && i <= 5) && cond == 1) && 5 <= n) || ((i <= 0 && n <= 5) && 5 <= n) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 5 <= n - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((n <= 5 && i <= 5) && cond == 1) && 5 <= n - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 1 error locations. SAFE Result, 10.6s OverallTime, 6 OverallIterations, 8 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 96 SDtfs, 420 SDslu, 155 SDs, 0 SdLazy, 268 SolverSat, 69 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=5, 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, 6 MinimizatonAttempts, 93 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 15 PreInvPairs, 61 NumberOfFragments, 94 HoareAnnotationTreeSize, 15 FomulaSimplifications, 1412 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 202 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 17968 SizeOfPredicates, 9 NumberOfNonLiveVariables, 21076 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 10 InterpolantComputations, 3 PerfectInterpolantSequences, 182/314 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...