./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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/cggmp2005_variant_true-unreach-call_true-termination.c.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 fb13e67548d34af589d64a91d36af5946c1dd198 ........................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 06:14:06,156 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 06:14:06,158 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 06:14:06,170 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 06:14:06,171 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 06:14:06,173 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 06:14:06,175 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 06:14:06,178 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 06:14:06,183 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 06:14:06,188 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 06:14:06,190 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 06:14:06,193 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 06:14:06,194 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 06:14:06,195 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 06:14:06,201 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 06:14:06,202 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 06:14:06,203 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 06:14:06,207 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 06:14:06,209 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 06:14:06,214 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 06:14:06,216 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 06:14:06,218 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 06:14:06,222 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 06:14:06,227 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 06:14:06,227 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 06:14:06,229 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 06:14:06,229 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 06:14:06,230 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 06:14:06,234 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 06:14:06,235 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 06:14:06,235 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 06:14:06,238 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 06:14:06,240 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 06:14:06,240 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 06:14:06,241 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 06:14:06,242 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 06:14:06,242 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 06:14:06,268 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 06:14:06,268 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 06:14:06,270 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 06:14:06,271 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 06:14:06,272 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 06:14:06,272 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 06:14:06,272 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 06:14:06,272 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 06:14:06,272 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 06:14:06,272 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 06:14:06,274 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 06:14:06,274 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 06:14:06,274 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 06:14:06,274 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 06:14:06,274 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 06:14:06,275 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 06:14:06,275 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 06:14:06,277 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 06:14:06,277 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 06:14:06,278 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 06:14:06,278 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 06:14:06,278 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 06:14:06,278 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 06:14:06,278 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 06:14:06,278 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 06:14:06,279 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 06:14:06,280 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 06:14:06,280 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 06:14:06,280 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 -> fb13e67548d34af589d64a91d36af5946c1dd198 [2018-12-31 06:14:06,345 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 06:14:06,362 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 06:14:06,369 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 06:14:06,371 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 06:14:06,372 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 06:14:06,373 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-12-31 06:14:06,429 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4be7d8ea7/aad5752f48d3475cbebd734de1dd86cb/FLAG040b9ad29 [2018-12-31 06:14:06,884 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 06:14:06,885 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-lit/cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-12-31 06:14:06,890 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4be7d8ea7/aad5752f48d3475cbebd734de1dd86cb/FLAG040b9ad29 [2018-12-31 06:14:07,245 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4be7d8ea7/aad5752f48d3475cbebd734de1dd86cb [2018-12-31 06:14:07,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 06:14:07,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 06:14:07,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 06:14:07,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 06:14:07,257 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 06:14:07,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 06:14:07" (1/1) ... [2018-12-31 06:14:07,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5589e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:07, skipping insertion in model container [2018-12-31 06:14:07,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 06:14:07" (1/1) ... [2018-12-31 06:14:07,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 06:14:07,287 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 06:14:07,456 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 06:14:07,461 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 06:14:07,479 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 06:14:07,495 INFO L195 MainTranslator]: Completed translation [2018-12-31 06:14:07,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:07 WrapperNode [2018-12-31 06:14:07,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 06:14:07,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 06:14:07,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 06:14:07,497 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 06:14:07,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:07" (1/1) ... [2018-12-31 06:14:07,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:07" (1/1) ... [2018-12-31 06:14:07,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 06:14:07,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 06:14:07,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 06:14:07,535 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 06:14:07,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:07" (1/1) ... [2018-12-31 06:14:07,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:07" (1/1) ... [2018-12-31 06:14:07,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:07" (1/1) ... [2018-12-31 06:14:07,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:07" (1/1) ... [2018-12-31 06:14:07,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:07" (1/1) ... [2018-12-31 06:14:07,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:07" (1/1) ... [2018-12-31 06:14:07,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:07" (1/1) ... [2018-12-31 06:14:07,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 06:14:07,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 06:14:07,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 06:14:07,560 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 06:14:07,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:07" (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 [2018-12-31 06:14:07,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 06:14:07,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 06:14:07,898 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 06:14:07,898 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-31 06:14:07,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 06:14:07 BoogieIcfgContainer [2018-12-31 06:14:07,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 06:14:07,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 06:14:07,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 06:14:07,903 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 06:14:07,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 06:14:07" (1/3) ... [2018-12-31 06:14:07,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed8743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 06:14:07, skipping insertion in model container [2018-12-31 06:14:07,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:07" (2/3) ... [2018-12-31 06:14:07,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ed8743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 06:14:07, skipping insertion in model container [2018-12-31 06:14:07,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 06:14:07" (3/3) ... [2018-12-31 06:14:07,907 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant_true-unreach-call_true-termination.c.i [2018-12-31 06:14:07,915 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 06:14:07,921 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 06:14:07,937 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 06:14:07,967 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 06:14:07,968 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 06:14:07,968 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 06:14:07,969 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 06:14:07,969 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 06:14:07,969 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 06:14:07,969 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 06:14:07,969 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 06:14:07,969 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 06:14:07,984 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2018-12-31 06:14:07,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-31 06:14:07,990 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 06:14:07,991 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-12-31 06:14:07,993 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 06:14:07,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 06:14:07,998 INFO L82 PathProgramCache]: Analyzing trace with hash 922199370, now seen corresponding path program 1 times [2018-12-31 06:14:08,000 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 06:14:08,001 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 06:14:08,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:14:08,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 06:14:08,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:14:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 06:14:08,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 06:14:08,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 06:14:08,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 06:14:08,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 06:14:08,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 06:14:08,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 06:14:08,141 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2018-12-31 06:14:08,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 06:14:08,161 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2018-12-31 06:14:08,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 06:14:08,163 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-12-31 06:14:08,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 06:14:08,172 INFO L225 Difference]: With dead ends: 19 [2018-12-31 06:14:08,172 INFO L226 Difference]: Without dead ends: 7 [2018-12-31 06:14:08,175 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 06:14:08,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-12-31 06:14:08,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-12-31 06:14:08,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-31 06:14:08,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-12-31 06:14:08,207 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 6 [2018-12-31 06:14:08,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 06:14:08,208 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-12-31 06:14:08,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 06:14:08,208 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-12-31 06:14:08,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-31 06:14:08,209 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 06:14:08,209 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-12-31 06:14:08,211 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 06:14:08,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 06:14:08,211 INFO L82 PathProgramCache]: Analyzing trace with hash 922080206, now seen corresponding path program 1 times [2018-12-31 06:14:08,212 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 06:14:08,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 06:14:08,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:14:08,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 06:14:08,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:14:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 06:14:08,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 06:14:08,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 06:14:08,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 06:14:08,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 06:14:08,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 06:14:08,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 06:14:08,326 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 3 states. [2018-12-31 06:14:08,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 06:14:08,479 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-12-31 06:14:08,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 06:14:08,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2018-12-31 06:14:08,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 06:14:08,489 INFO L225 Difference]: With dead ends: 12 [2018-12-31 06:14:08,489 INFO L226 Difference]: Without dead ends: 8 [2018-12-31 06:14:08,490 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 06:14:08,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-12-31 06:14:08,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-12-31 06:14:08,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-31 06:14:08,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-12-31 06:14:08,495 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-12-31 06:14:08,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 06:14:08,496 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-12-31 06:14:08,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 06:14:08,497 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-12-31 06:14:08,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-31 06:14:08,497 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 06:14:08,497 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-31 06:14:08,497 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 06:14:08,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 06:14:08,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1478619311, now seen corresponding path program 1 times [2018-12-31 06:14:08,498 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 06:14:08,498 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 06:14:08,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:14:08,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 06:14:08,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:14:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 06:14:08,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 06:14:08,919 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-31 06:14:08,919 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 [2018-12-31 06:14:08,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 06:14:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 06:14:08,954 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 06:14:09,281 WARN L181 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-31 06:14:09,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 06:14:09,495 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 06:14:09,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-12-31 06:14:09,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-31 06:14:09,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-31 06:14:09,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-12-31 06:14:09,496 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 10 states. [2018-12-31 06:14:09,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 06:14:09,760 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-12-31 06:14:09,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-31 06:14:09,763 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 7 [2018-12-31 06:14:09,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 06:14:09,764 INFO L225 Difference]: With dead ends: 13 [2018-12-31 06:14:09,764 INFO L226 Difference]: Without dead ends: 9 [2018-12-31 06:14:09,765 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-12-31 06:14:09,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-12-31 06:14:09,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-12-31 06:14:09,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-12-31 06:14:09,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-12-31 06:14:09,769 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2018-12-31 06:14:09,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 06:14:09,769 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-12-31 06:14:09,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-31 06:14:09,770 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-12-31 06:14:09,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-31 06:14:09,770 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 06:14:09,771 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2018-12-31 06:14:09,771 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 06:14:09,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 06:14:09,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1409106990, now seen corresponding path program 2 times [2018-12-31 06:14:09,772 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 06:14:09,772 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 06:14:09,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:14:09,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 06:14:09,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:14:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 06:14:10,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-31 06:14:10,154 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-31 06:14:10,154 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 [2018-12-31 06:14:10,164 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-31 06:14:10,178 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-31 06:14:10,178 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-31 06:14:10,181 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 06:14:10,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 06:14:10,640 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 06:14:10,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 10 [2018-12-31 06:14:10,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-31 06:14:10,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-31 06:14:10,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2018-12-31 06:14:10,646 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 11 states. [2018-12-31 06:14:11,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 06:14:11,186 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-12-31 06:14:11,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-31 06:14:11,187 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 8 [2018-12-31 06:14:11,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 06:14:11,188 INFO L225 Difference]: With dead ends: 12 [2018-12-31 06:14:11,188 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 06:14:11,189 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2018-12-31 06:14:11,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 06:14:11,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 06:14:11,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 06:14:11,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 06:14:11,191 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-12-31 06:14:11,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 06:14:11,191 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 06:14:11,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-31 06:14:11,191 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 06:14:11,192 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 06:14:11,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 06:14:11,281 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 06:14:11,281 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-12-31 06:14:11,282 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-12-31 06:14:11,282 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 06:14:11,282 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 06:14:11,282 INFO L451 ceAbstractionStarter]: At program point L22(lines 10 23) the Hoare annotation is: true [2018-12-31 06:14:11,282 INFO L448 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-12-31 06:14:11,283 INFO L444 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~lo~0 (* 2 ULTIMATE.start_main_~mid~0)))) (and (<= ULTIMATE.start_main_~hi~0 .cse0) (<= .cse0 ULTIMATE.start_main_~hi~0) (<= ULTIMATE.start_main_~lo~0 ULTIMATE.start_main_~hi~0))) [2018-12-31 06:14:11,283 INFO L448 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2018-12-31 06:14:11,283 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-12-31 06:14:11,283 INFO L451 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2018-12-31 06:14:11,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 06:14:11 BoogieIcfgContainer [2018-12-31 06:14:11,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 06:14:11,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 06:14:11,296 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 06:14:11,296 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 06:14:11,296 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 06:14:07" (3/4) ... [2018-12-31 06:14:11,299 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 06:14:11,309 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-31 06:14:11,309 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 06:14:11,354 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 06:14:11,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 06:14:11,355 INFO L168 Benchmark]: Toolchain (without parser) took 4104.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 946.0 MB in the beginning and 982.2 MB in the end (delta: -36.2 MB). Peak memory consumption was 103.8 MB. Max. memory is 11.5 GB. [2018-12-31 06:14:11,356 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 06:14:11,357 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.77 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 06:14:11,358 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.78 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 06:14:11,358 INFO L168 Benchmark]: Boogie Preprocessor took 24.24 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 06:14:11,359 INFO L168 Benchmark]: RCFGBuilder took 340.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-31 06:14:11,360 INFO L168 Benchmark]: TraceAbstraction took 3394.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.8 MB in the end (delta: 122.5 MB). Peak memory consumption was 122.5 MB. Max. memory is 11.5 GB. [2018-12-31 06:14:11,361 INFO L168 Benchmark]: Witness Printer took 58.89 ms. Allocated memory is still 1.2 GB. Free memory was 988.8 MB in the beginning and 982.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-31 06:14:11,365 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 243.77 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 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 37.78 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.24 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 340.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3394.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 988.8 MB in the end (delta: 122.5 MB). Peak memory consumption was 122.5 MB. Max. memory is 11.5 GB. * Witness Printer took 58.89 ms. Allocated memory is still 1.2 GB. Free memory was 988.8 MB in the beginning and 982.2 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: 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: (hi <= lo + 2 * mid && lo + 2 * mid <= hi) && lo <= hi - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. SAFE Result, 3.3s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 17 SDslu, 21 SDs, 0 SdLazy, 85 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 20 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 79 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 36 ConstructedInterpolants, 4 QuantifiedInterpolants, 1814 SizeOfPredicates, 10 NumberOfNonLiveVariables, 61 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 1/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...