./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loops/terminator_02_false-unreach-call_true-termination.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/loops/terminator_02_false-unreach-call_true-termination.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 73643ecf8e1581c13142517bcc63dc5d77c96d29 .......................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 05:38:37,270 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 05:38:37,272 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 05:38:37,289 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 05:38:37,289 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 05:38:37,292 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 05:38:37,294 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 05:38:37,296 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 05:38:37,298 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 05:38:37,299 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 05:38:37,300 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 05:38:37,300 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 05:38:37,302 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 05:38:37,303 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 05:38:37,304 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 05:38:37,305 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 05:38:37,306 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 05:38:37,308 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 05:38:37,311 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 05:38:37,312 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 05:38:37,314 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 05:38:37,315 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 05:38:37,320 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 05:38:37,320 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 05:38:37,320 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 05:38:37,321 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 05:38:37,322 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 05:38:37,325 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 05:38:37,325 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 05:38:37,328 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 05:38:37,328 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 05:38:37,331 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 05:38:37,332 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 05:38:37,333 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 05:38:37,335 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 05:38:37,335 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 05:38:37,336 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 05:38:37,362 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 05:38:37,364 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 05:38:37,365 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 05:38:37,369 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 05:38:37,369 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 05:38:37,370 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 05:38:37,370 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 05:38:37,371 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 05:38:37,371 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 05:38:37,371 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 05:38:37,371 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 05:38:37,372 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 05:38:37,372 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 05:38:37,372 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 05:38:37,373 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 05:38:37,373 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 05:38:37,373 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 05:38:37,373 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 05:38:37,374 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 05:38:37,374 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 05:38:37,374 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 05:38:37,374 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 05:38:37,374 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 05:38:37,374 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 05:38:37,377 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 05:38:37,377 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 05:38:37,378 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 05:38:37,378 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 05:38:37,378 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 -> 73643ecf8e1581c13142517bcc63dc5d77c96d29 [2018-12-31 05:38:37,426 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 05:38:37,439 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 05:38:37,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 05:38:37,445 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 05:38:37,446 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 05:38:37,446 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/terminator_02_false-unreach-call_true-termination.i [2018-12-31 05:38:37,507 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40884ce9b/ced6e037e4134f2aa1b06d6d9e1c1d8d/FLAGd260f1e09 [2018-12-31 05:38:37,943 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 05:38:37,945 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/terminator_02_false-unreach-call_true-termination.i [2018-12-31 05:38:37,952 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40884ce9b/ced6e037e4134f2aa1b06d6d9e1c1d8d/FLAGd260f1e09 [2018-12-31 05:38:38,300 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40884ce9b/ced6e037e4134f2aa1b06d6d9e1c1d8d [2018-12-31 05:38:38,304 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 05:38:38,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 05:38:38,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 05:38:38,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 05:38:38,311 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 05:38:38,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 05:38:38" (1/1) ... [2018-12-31 05:38:38,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12a7ac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:38, skipping insertion in model container [2018-12-31 05:38:38,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 05:38:38" (1/1) ... [2018-12-31 05:38:38,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 05:38:38,340 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 05:38:38,563 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 05:38:38,571 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 05:38:38,594 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 05:38:38,614 INFO L195 MainTranslator]: Completed translation [2018-12-31 05:38:38,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:38 WrapperNode [2018-12-31 05:38:38,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 05:38:38,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 05:38:38,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 05:38:38,616 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 05:38:38,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:38" (1/1) ... [2018-12-31 05:38:38,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:38" (1/1) ... [2018-12-31 05:38:38,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 05:38:38,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 05:38:38,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 05:38:38,661 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 05:38:38,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:38" (1/1) ... [2018-12-31 05:38:38,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:38" (1/1) ... [2018-12-31 05:38:38,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:38" (1/1) ... [2018-12-31 05:38:38,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:38" (1/1) ... [2018-12-31 05:38:38,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:38" (1/1) ... [2018-12-31 05:38:38,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:38" (1/1) ... [2018-12-31 05:38:38,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:38" (1/1) ... [2018-12-31 05:38:38,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 05:38:38,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 05:38:38,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 05:38:38,681 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 05:38:38,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:38" (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 05:38:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 05:38:38,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 05:38:38,998 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 05:38:38,999 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-31 05:38:38,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:38:38 BoogieIcfgContainer [2018-12-31 05:38:38,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 05:38:39,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 05:38:39,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 05:38:39,005 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 05:38:39,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 05:38:38" (1/3) ... [2018-12-31 05:38:39,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e697d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 05:38:39, skipping insertion in model container [2018-12-31 05:38:39,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:38:38" (2/3) ... [2018-12-31 05:38:39,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e697d4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 05:38:39, skipping insertion in model container [2018-12-31 05:38:39,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:38:38" (3/3) ... [2018-12-31 05:38:39,009 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_02_false-unreach-call_true-termination.i [2018-12-31 05:38:39,021 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 05:38:39,038 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 05:38:39,075 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 05:38:39,131 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 05:38:39,132 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 05:38:39,132 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 05:38:39,132 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 05:38:39,132 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 05:38:39,133 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 05:38:39,133 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 05:38:39,133 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 05:38:39,133 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 05:38:39,153 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2018-12-31 05:38:39,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 05:38:39,169 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 05:38:39,171 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 05:38:39,174 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 05:38:39,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 05:38:39,190 INFO L82 PathProgramCache]: Analyzing trace with hash 30108868, now seen corresponding path program 1 times [2018-12-31 05:38:39,192 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 05:38:39,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 05:38:39,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:38:39,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 05:38:39,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:38:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 05:38:39,316 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 05:38:39,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 05:38:39,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 05:38:39,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 05:38:39,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 05:38:39,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 05:38:39,344 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2018-12-31 05:38:39,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 05:38:39,362 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2018-12-31 05:38:39,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 05:38:39,363 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2018-12-31 05:38:39,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 05:38:39,372 INFO L225 Difference]: With dead ends: 19 [2018-12-31 05:38:39,372 INFO L226 Difference]: Without dead ends: 7 [2018-12-31 05:38:39,375 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 05:38:39,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-12-31 05:38:39,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-12-31 05:38:39,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-31 05:38:39,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-12-31 05:38:39,404 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 5 [2018-12-31 05:38:39,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 05:38:39,405 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-12-31 05:38:39,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 05:38:39,405 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2018-12-31 05:38:39,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 05:38:39,406 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 05:38:39,406 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 05:38:39,406 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 05:38:39,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 05:38:39,407 INFO L82 PathProgramCache]: Analyzing trace with hash 29810958, now seen corresponding path program 1 times [2018-12-31 05:38:39,407 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 05:38:39,407 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 05:38:39,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:38:39,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 05:38:39,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:38:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 05:38:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 05:38:39,445 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 05:38:39,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 05:38:39 BoogieIcfgContainer [2018-12-31 05:38:39,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 05:38:39,466 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 05:38:39,466 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 05:38:39,467 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 05:38:39,467 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:38:38" (3/4) ... [2018-12-31 05:38:39,470 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 05:38:39,520 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 05:38:39,520 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 05:38:39,521 INFO L168 Benchmark]: Toolchain (without parser) took 1216.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -123.9 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. [2018-12-31 05:38:39,523 INFO L168 Benchmark]: CDTParser took 0.58 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 05:38:39,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.31 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 05:38:39,525 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.80 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:38:39,525 INFO L168 Benchmark]: Boogie Preprocessor took 19.65 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:38:39,526 INFO L168 Benchmark]: RCFGBuilder took 318.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -154.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-31 05:38:39,527 INFO L168 Benchmark]: TraceAbstraction took 465.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-12-31 05:38:39,528 INFO L168 Benchmark]: Witness Printer took 53.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:38:39,532 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 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 308.31 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 44.80 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.65 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 318.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -154.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 465.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Witness Printer took 53.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int x=__VERIFIER_nondet_int(); [L15] int y=__VERIFIER_nondet_int(); [L16] int z=__VERIFIER_nondet_int(); [L18] COND FALSE !(x<100 && 100