./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/recursive-simple/id_i5_o5_true-unreach-call_true-termination.c --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/recursive-simple/id_i5_o5_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e05793781d8e05fe8376a30b6751438f3b1a9d08 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 10:07:35,165 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 10:07:35,168 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 10:07:35,183 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 10:07:35,184 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 10:07:35,185 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 10:07:35,186 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 10:07:35,189 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 10:07:35,191 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 10:07:35,195 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 10:07:35,196 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 10:07:35,196 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 10:07:35,199 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 10:07:35,200 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 10:07:35,206 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 10:07:35,207 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 10:07:35,208 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 10:07:35,212 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 10:07:35,214 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 10:07:35,215 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 10:07:35,217 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 10:07:35,218 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 10:07:35,220 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 10:07:35,220 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 10:07:35,221 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 10:07:35,222 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 10:07:35,223 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 10:07:35,224 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 10:07:35,225 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 10:07:35,226 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 10:07:35,226 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 10:07:35,227 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 10:07:35,227 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 10:07:35,227 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 10:07:35,228 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 10:07:35,230 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 10:07:35,230 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 10:07:35,245 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 10:07:35,246 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 10:07:35,247 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 10:07:35,247 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 10:07:35,247 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 10:07:35,248 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 10:07:35,248 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 10:07:35,248 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 10:07:35,248 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 10:07:35,248 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 10:07:35,248 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 10:07:35,249 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 10:07:35,250 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 10:07:35,250 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 10:07:35,250 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 10:07:35,250 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 10:07:35,250 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 10:07:35,251 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 10:07:35,251 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 10:07:35,251 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 10:07:35,251 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 10:07:35,251 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 10:07:35,251 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 10:07:35,253 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 10:07:35,253 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 10:07:35,253 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 10:07:35,253 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 10:07:35,254 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 10:07:35,254 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 -> e05793781d8e05fe8376a30b6751438f3b1a9d08 [2018-12-31 10:07:35,293 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 10:07:35,307 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 10:07:35,311 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 10:07:35,313 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 10:07:35,313 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 10:07:35,314 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/recursive-simple/id_i5_o5_true-unreach-call_true-termination.c [2018-12-31 10:07:35,376 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a6cf216/b9f3092969b04776bd20952618c148b5/FLAG59e3e9beb [2018-12-31 10:07:35,778 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 10:07:35,779 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/recursive-simple/id_i5_o5_true-unreach-call_true-termination.c [2018-12-31 10:07:35,785 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a6cf216/b9f3092969b04776bd20952618c148b5/FLAG59e3e9beb [2018-12-31 10:07:36,188 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85a6cf216/b9f3092969b04776bd20952618c148b5 [2018-12-31 10:07:36,192 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 10:07:36,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 10:07:36,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 10:07:36,194 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 10:07:36,198 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 10:07:36,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 10:07:36" (1/1) ... [2018-12-31 10:07:36,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c748e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:07:36, skipping insertion in model container [2018-12-31 10:07:36,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 10:07:36" (1/1) ... [2018-12-31 10:07:36,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 10:07:36,228 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 10:07:36,453 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 10:07:36,462 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 10:07:36,484 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 10:07:36,504 INFO L195 MainTranslator]: Completed translation [2018-12-31 10:07:36,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:07:36 WrapperNode [2018-12-31 10:07:36,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 10:07:36,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 10:07:36,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 10:07:36,508 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 10:07:36,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:07:36" (1/1) ... [2018-12-31 10:07:36,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:07:36" (1/1) ... [2018-12-31 10:07:36,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 10:07:36,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 10:07:36,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 10:07:36,554 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 10:07:36,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:07:36" (1/1) ... [2018-12-31 10:07:36,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:07:36" (1/1) ... [2018-12-31 10:07:36,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:07:36" (1/1) ... [2018-12-31 10:07:36,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:07:36" (1/1) ... [2018-12-31 10:07:36,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:07:36" (1/1) ... [2018-12-31 10:07:36,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:07:36" (1/1) ... [2018-12-31 10:07:36,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:07:36" (1/1) ... [2018-12-31 10:07:36,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 10:07:36,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 10:07:36,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 10:07:36,578 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 10:07:36,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:07:36" (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 10:07:36,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 10:07:36,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 10:07:36,726 INFO L130 BoogieDeclarations]: Found specification of procedure id [2018-12-31 10:07:36,726 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2018-12-31 10:07:36,933 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 10:07:36,933 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 10:07:36,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 10:07:36 BoogieIcfgContainer [2018-12-31 10:07:36,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 10:07:36,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 10:07:36,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 10:07:36,939 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 10:07:36,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 10:07:36" (1/3) ... [2018-12-31 10:07:36,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d55a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 10:07:36, skipping insertion in model container [2018-12-31 10:07:36,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:07:36" (2/3) ... [2018-12-31 10:07:36,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d55a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 10:07:36, skipping insertion in model container [2018-12-31 10:07:36,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 10:07:36" (3/3) ... [2018-12-31 10:07:36,944 INFO L112 eAbstractionObserver]: Analyzing ICFG id_i5_o5_true-unreach-call_true-termination.c [2018-12-31 10:07:36,955 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 10:07:36,964 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 10:07:36,984 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 10:07:37,018 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 10:07:37,019 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 10:07:37,019 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 10:07:37,020 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 10:07:37,020 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 10:07:37,020 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 10:07:37,020 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 10:07:37,020 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 10:07:37,020 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 10:07:37,042 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2018-12-31 10:07:37,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-31 10:07:37,050 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 10:07:37,051 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 10:07:37,055 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 10:07:37,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 10:07:37,063 INFO L82 PathProgramCache]: Analyzing trace with hash 389977641, now seen corresponding path program 1 times [2018-12-31 10:07:37,065 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 10:07:37,066 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 10:07:37,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:07:37,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 10:07:37,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:07:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 10:07:37,435 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 10:07:37,438 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 10:07:37,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 10:07:37,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 10:07:37,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 10:07:37,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 10:07:37,462 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 5 states. [2018-12-31 10:07:37,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 10:07:37,649 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2018-12-31 10:07:37,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-31 10:07:37,652 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-12-31 10:07:37,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 10:07:37,662 INFO L225 Difference]: With dead ends: 24 [2018-12-31 10:07:37,663 INFO L226 Difference]: Without dead ends: 14 [2018-12-31 10:07:37,666 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-31 10:07:37,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-12-31 10:07:37,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-12-31 10:07:37,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-31 10:07:37,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-12-31 10:07:37,713 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 9 [2018-12-31 10:07:37,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 10:07:37,714 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-12-31 10:07:37,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 10:07:37,714 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-12-31 10:07:37,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-31 10:07:37,716 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 10:07:37,716 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 10:07:37,716 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 10:07:37,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 10:07:37,717 INFO L82 PathProgramCache]: Analyzing trace with hash -881029229, now seen corresponding path program 1 times [2018-12-31 10:07:37,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 10:07:37,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 10:07:37,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:07:37,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 10:07:37,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:07:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 10:07:37,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-31 10:07:37,825 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-31 10:07:37,825 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 10:07:37,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 10:07:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 10:07:37,883 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 10:07:37,918 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-31 10:07:37,942 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 10:07:37,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-12-31 10:07:37,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 10:07:37,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 10:07:37,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-31 10:07:37,944 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 6 states. [2018-12-31 10:07:38,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 10:07:38,156 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2018-12-31 10:07:38,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 10:07:38,157 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-12-31 10:07:38,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 10:07:38,158 INFO L225 Difference]: With dead ends: 21 [2018-12-31 10:07:38,158 INFO L226 Difference]: Without dead ends: 17 [2018-12-31 10:07:38,160 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-12-31 10:07:38,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-12-31 10:07:38,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-12-31 10:07:38,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-31 10:07:38,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-12-31 10:07:38,166 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 15 [2018-12-31 10:07:38,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 10:07:38,166 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-12-31 10:07:38,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 10:07:38,166 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-12-31 10:07:38,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-31 10:07:38,167 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 10:07:38,168 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 10:07:38,168 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 10:07:38,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 10:07:38,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1824240471, now seen corresponding path program 2 times [2018-12-31 10:07:38,168 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 10:07:38,169 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 10:07:38,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:07:38,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 10:07:38,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:07:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 10:07:38,448 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-31 10:07:38,449 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-31 10:07:38,449 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 10:07:38,468 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-31 10:07:38,509 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-31 10:07:38,509 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-31 10:07:38,513 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 10:07:38,531 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-31 10:07:38,556 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 10:07:38,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-12-31 10:07:38,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-31 10:07:38,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-31 10:07:38,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-31 10:07:38,559 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 7 states. [2018-12-31 10:07:38,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 10:07:38,754 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-12-31 10:07:38,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-31 10:07:38,758 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-12-31 10:07:38,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 10:07:38,760 INFO L225 Difference]: With dead ends: 24 [2018-12-31 10:07:38,760 INFO L226 Difference]: Without dead ends: 20 [2018-12-31 10:07:38,761 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-12-31 10:07:38,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-12-31 10:07:38,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-12-31 10:07:38,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-12-31 10:07:38,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-12-31 10:07:38,769 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 21 [2018-12-31 10:07:38,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 10:07:38,769 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-12-31 10:07:38,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-31 10:07:38,770 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-12-31 10:07:38,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-31 10:07:38,772 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 10:07:38,772 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 10:07:38,772 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 10:07:38,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 10:07:38,774 INFO L82 PathProgramCache]: Analyzing trace with hash -28473709, now seen corresponding path program 3 times [2018-12-31 10:07:38,774 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 10:07:38,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 10:07:38,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:07:38,776 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-31 10:07:38,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:07:38,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 10:07:39,012 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-31 10:07:39,012 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-31 10:07:39,012 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 [2018-12-31 10:07:39,026 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-31 10:07:39,046 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-12-31 10:07:39,047 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-31 10:07:39,050 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 10:07:39,072 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-31 10:07:39,102 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 10:07:39,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-12-31 10:07:39,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-31 10:07:39,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-31 10:07:39,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-31 10:07:39,104 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2018-12-31 10:07:39,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 10:07:39,286 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2018-12-31 10:07:39,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-31 10:07:39,288 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-12-31 10:07:39,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 10:07:39,290 INFO L225 Difference]: With dead ends: 27 [2018-12-31 10:07:39,290 INFO L226 Difference]: Without dead ends: 23 [2018-12-31 10:07:39,291 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-12-31 10:07:39,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-12-31 10:07:39,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-12-31 10:07:39,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-31 10:07:39,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-12-31 10:07:39,297 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 27 [2018-12-31 10:07:39,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 10:07:39,297 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-12-31 10:07:39,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-31 10:07:39,298 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-12-31 10:07:39,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-31 10:07:39,299 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 10:07:39,300 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 10:07:39,300 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 10:07:39,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 10:07:39,300 INFO L82 PathProgramCache]: Analyzing trace with hash -2080894167, now seen corresponding path program 4 times [2018-12-31 10:07:39,300 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 10:07:39,301 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 10:07:39,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:07:39,302 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-31 10:07:39,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:07:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 10:07:39,782 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-31 10:07:39,782 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-31 10:07:39,782 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 [2018-12-31 10:07:39,793 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-31 10:07:39,805 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-31 10:07:39,805 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-31 10:07:39,809 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 10:07:39,840 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-12-31 10:07:39,860 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 10:07:39,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-12-31 10:07:39,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-31 10:07:39,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-31 10:07:39,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-12-31 10:07:39,862 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 9 states. [2018-12-31 10:07:40,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 10:07:40,025 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2018-12-31 10:07:40,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-31 10:07:40,027 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 33 [2018-12-31 10:07:40,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 10:07:40,028 INFO L225 Difference]: With dead ends: 30 [2018-12-31 10:07:40,029 INFO L226 Difference]: Without dead ends: 26 [2018-12-31 10:07:40,029 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-12-31 10:07:40,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-12-31 10:07:40,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-12-31 10:07:40,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-12-31 10:07:40,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-12-31 10:07:40,035 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 33 [2018-12-31 10:07:40,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 10:07:40,036 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-12-31 10:07:40,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-31 10:07:40,036 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-12-31 10:07:40,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-12-31 10:07:40,037 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 10:07:40,037 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 10:07:40,038 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 10:07:40,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 10:07:40,038 INFO L82 PathProgramCache]: Analyzing trace with hash -687460973, now seen corresponding path program 5 times [2018-12-31 10:07:40,038 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 10:07:40,038 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 10:07:40,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:07:40,040 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-31 10:07:40,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:07:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 10:07:40,556 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-12-31 10:07:40,556 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-31 10:07:40,556 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-31 10:07:40,580 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-12-31 10:07:40,627 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-12-31 10:07:40,627 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-31 10:07:40,631 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 10:07:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-12-31 10:07:40,683 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 10:07:40,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2018-12-31 10:07:40,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-31 10:07:40,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-31 10:07:40,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-12-31 10:07:40,685 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 15 states. [2018-12-31 10:07:40,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 10:07:40,921 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2018-12-31 10:07:40,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-31 10:07:40,922 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 39 [2018-12-31 10:07:40,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 10:07:40,923 INFO L225 Difference]: With dead ends: 33 [2018-12-31 10:07:40,923 INFO L226 Difference]: Without dead ends: 29 [2018-12-31 10:07:40,924 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-12-31 10:07:40,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-12-31 10:07:40,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-12-31 10:07:40,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-12-31 10:07:40,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-12-31 10:07:40,932 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 39 [2018-12-31 10:07:40,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 10:07:40,934 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-12-31 10:07:40,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-31 10:07:40,934 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-12-31 10:07:40,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-31 10:07:40,936 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 10:07:40,936 INFO L402 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 10:07:40,936 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 10:07:40,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 10:07:40,937 INFO L82 PathProgramCache]: Analyzing trace with hash 547744169, now seen corresponding path program 6 times [2018-12-31 10:07:40,937 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 10:07:40,937 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 10:07:40,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:07:40,939 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-31 10:07:40,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:07:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 10:07:41,205 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-12-31 10:07:41,205 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 10:07:41,205 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-31 10:07:41,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-31 10:07:41,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-31 10:07:41,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-12-31 10:07:41,207 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 11 states. [2018-12-31 10:07:41,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 10:07:41,367 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2018-12-31 10:07:41,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-31 10:07:41,368 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2018-12-31 10:07:41,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 10:07:41,370 INFO L225 Difference]: With dead ends: 29 [2018-12-31 10:07:41,370 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 10:07:41,372 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=196, Unknown=0, NotChecked=0, Total=306 [2018-12-31 10:07:41,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 10:07:41,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 10:07:41,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 10:07:41,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 10:07:41,373 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2018-12-31 10:07:41,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 10:07:41,373 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 10:07:41,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-31 10:07:41,375 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 10:07:41,375 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 10:07:41,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 10:07:41,507 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2018-12-31 10:07:41,507 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 10:07:41,507 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 10:07:41,507 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 10:07:41,507 INFO L448 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-12-31 10:07:41,508 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 14) no Hoare annotation was computed. [2018-12-31 10:07:41,508 INFO L444 ceAbstractionStarter]: At program point L11(line 11) the Hoare annotation is: (and (<= 5 ULTIMATE.start_main_~input~0) (<= ULTIMATE.start_main_~input~0 5)) [2018-12-31 10:07:41,508 INFO L448 ceAbstractionStarter]: For program point L11-1(line 11) no Hoare annotation was computed. [2018-12-31 10:07:41,508 INFO L448 ceAbstractionStarter]: For program point L9(lines 9 15) no Hoare annotation was computed. [2018-12-31 10:07:41,508 INFO L448 ceAbstractionStarter]: For program point idFINAL(lines 4 7) no Hoare annotation was computed. [2018-12-31 10:07:41,508 INFO L448 ceAbstractionStarter]: For program point idEXIT(lines 4 7) no Hoare annotation was computed. [2018-12-31 10:07:41,509 INFO L451 ceAbstractionStarter]: At program point idENTRY(lines 4 7) the Hoare annotation is: true [2018-12-31 10:07:41,509 INFO L444 ceAbstractionStarter]: At program point L6(line 6) the Hoare annotation is: (and (<= |id_#in~x| id_~x) (<= id_~x |id_#in~x|)) [2018-12-31 10:07:41,509 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-12-31 10:07:41,509 INFO L448 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2018-12-31 10:07:41,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 10:07:41 BoogieIcfgContainer [2018-12-31 10:07:41,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 10:07:41,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 10:07:41,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 10:07:41,513 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 10:07:41,513 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 10:07:36" (3/4) ... [2018-12-31 10:07:41,517 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 10:07:41,524 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2018-12-31 10:07:41,529 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-31 10:07:41,529 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 10:07:41,572 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 10:07:41,572 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 10:07:41,573 INFO L168 Benchmark]: Toolchain (without parser) took 5380.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 948.7 MB in the beginning and 898.8 MB in the end (delta: 49.9 MB). Peak memory consumption was 195.6 MB. Max. memory is 11.5 GB. [2018-12-31 10:07:41,575 INFO L168 Benchmark]: CDTParser took 0.39 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. [2018-12-31 10:07:41,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.94 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 10:07:41,576 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.50 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 10:07:41,577 INFO L168 Benchmark]: Boogie Preprocessor took 23.27 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 10:07:41,577 INFO L168 Benchmark]: RCFGBuilder took 355.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -188.2 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-12-31 10:07:41,578 INFO L168 Benchmark]: TraceAbstraction took 4577.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 898.8 MB in the end (delta: 220.8 MB). Peak memory consumption was 220.8 MB. Max. memory is 11.5 GB. [2018-12-31 10:07:41,579 INFO L168 Benchmark]: Witness Printer took 59.74 ms. Allocated memory is still 1.2 GB. Free memory is still 898.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 10:07:41,583 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 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 312.94 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.50 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.27 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 355.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -188.2 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4577.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 898.8 MB in the end (delta: 220.8 MB). Peak memory consumption was 220.8 MB. Max. memory is 11.5 GB. * Witness Printer took 59.74 ms. Allocated memory is still 1.2 GB. Free memory is still 898.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 1 error locations. SAFE Result, 4.5s OverallTime, 7 OverallIterations, 7 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 86 SDtfs, 63 SDslu, 392 SDs, 0 SdLazy, 288 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 159 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=6, 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 15 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 324 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 27872 SizeOfPredicates, 19 NumberOfNonLiveVariables, 305 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 294/474 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...