./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/locks/test_locks_15_false-unreach-call_true-valid-memsafety_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/locks/test_locks_15_false-unreach-call_true-valid-memsafety_false-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 4892275a211cad54ffe3d940980c258aec58e47d ............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-0ed9222-m [2019-01-14 14:59:22,491 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 14:59:22,493 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 14:59:22,509 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 14:59:22,510 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 14:59:22,511 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 14:59:22,512 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 14:59:22,514 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 14:59:22,516 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 14:59:22,516 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 14:59:22,518 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 14:59:22,518 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 14:59:22,519 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 14:59:22,520 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 14:59:22,521 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 14:59:22,522 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 14:59:22,523 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 14:59:22,525 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 14:59:22,527 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 14:59:22,528 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 14:59:22,529 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 14:59:22,531 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 14:59:22,533 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 14:59:22,533 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 14:59:22,533 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 14:59:22,534 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 14:59:22,535 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 14:59:22,536 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 14:59:22,537 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 14:59:22,538 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 14:59:22,538 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 14:59:22,539 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 14:59:22,539 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 14:59:22,539 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 14:59:22,540 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 14:59:22,541 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 14:59:22,541 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 14:59:22,556 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 14:59:22,556 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 14:59:22,557 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 14:59:22,557 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 14:59:22,558 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 14:59:22,558 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 14:59:22,558 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 14:59:22,558 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 14:59:22,558 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 14:59:22,559 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 14:59:22,559 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 14:59:22,559 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 14:59:22,559 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 14:59:22,559 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 14:59:22,560 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 14:59:22,560 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 14:59:22,560 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 14:59:22,560 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 14:59:22,560 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 14:59:22,561 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 14:59:22,561 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 14:59:22,561 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 14:59:22,561 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 14:59:22,561 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 14:59:22,562 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 14:59:22,562 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 14:59:22,562 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 14:59:22,562 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 -> 4892275a211cad54ffe3d940980c258aec58e47d [2019-01-14 14:59:22,628 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 14:59:22,651 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 14:59:22,655 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 14:59:22,657 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 14:59:22,657 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 14:59:22,658 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/locks/test_locks_15_false-unreach-call_true-valid-memsafety_false-termination.c [2019-01-14 14:59:22,713 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e21aa7e4/2869ef358d2f44b2ab91cec642e08e4d/FLAGf971a772a [2019-01-14 14:59:23,150 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 14:59:23,151 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/locks/test_locks_15_false-unreach-call_true-valid-memsafety_false-termination.c [2019-01-14 14:59:23,160 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e21aa7e4/2869ef358d2f44b2ab91cec642e08e4d/FLAGf971a772a [2019-01-14 14:59:23,509 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e21aa7e4/2869ef358d2f44b2ab91cec642e08e4d [2019-01-14 14:59:23,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 14:59:23,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 14:59:23,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 14:59:23,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 14:59:23,523 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 14:59:23,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:59:23" (1/1) ... [2019-01-14 14:59:23,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d04184c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:59:23, skipping insertion in model container [2019-01-14 14:59:23,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:59:23" (1/1) ... [2019-01-14 14:59:23,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 14:59:23,570 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 14:59:23,801 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 14:59:23,810 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 14:59:23,870 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 14:59:23,885 INFO L195 MainTranslator]: Completed translation [2019-01-14 14:59:23,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:59:23 WrapperNode [2019-01-14 14:59:23,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 14:59:23,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 14:59:23,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 14:59:23,887 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 14:59:23,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:59:23" (1/1) ... [2019-01-14 14:59:23,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:59:23" (1/1) ... [2019-01-14 14:59:23,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 14:59:23,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 14:59:23,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 14:59:23,929 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 14:59:23,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:59:23" (1/1) ... [2019-01-14 14:59:23,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:59:23" (1/1) ... [2019-01-14 14:59:24,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:59:23" (1/1) ... [2019-01-14 14:59:24,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:59:23" (1/1) ... [2019-01-14 14:59:24,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:59:23" (1/1) ... [2019-01-14 14:59:24,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:59:23" (1/1) ... [2019-01-14 14:59:24,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:59:23" (1/1) ... [2019-01-14 14:59:24,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 14:59:24,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 14:59:24,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 14:59:24,022 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 14:59:24,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:59:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 14:59:24,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 14:59:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 14:59:24,672 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 14:59:24,673 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-14 14:59:24,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:59:24 BoogieIcfgContainer [2019-01-14 14:59:24,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 14:59:24,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 14:59:24,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 14:59:24,678 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 14:59:24,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 02:59:23" (1/3) ... [2019-01-14 14:59:24,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f84f302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 02:59:24, skipping insertion in model container [2019-01-14 14:59:24,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:59:23" (2/3) ... [2019-01-14 14:59:24,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f84f302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 02:59:24, skipping insertion in model container [2019-01-14 14:59:24,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:59:24" (3/3) ... [2019-01-14 14:59:24,682 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_15_false-unreach-call_true-valid-memsafety_false-termination.c [2019-01-14 14:59:24,691 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 14:59:24,699 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 14:59:24,712 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 14:59:24,742 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 14:59:24,743 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 14:59:24,743 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 14:59:24,743 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 14:59:24,744 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 14:59:24,744 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 14:59:24,744 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 14:59:24,744 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 14:59:24,744 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 14:59:24,761 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-01-14 14:59:24,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-01-14 14:59:24,767 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 14:59:24,768 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 14:59:24,771 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 14:59:24,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 14:59:24,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1323184238, now seen corresponding path program 1 times [2019-01-14 14:59:24,778 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 14:59:24,779 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 14:59:24,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 14:59:24,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 14:59:24,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 14:59:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 14:59:24,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 14:59:24,998 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 14:59:24,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 14:59:25,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 14:59:25,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 14:59:25,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 14:59:25,018 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-01-14 14:59:25,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 14:59:25,114 INFO L93 Difference]: Finished difference Result 159 states and 299 transitions. [2019-01-14 14:59:25,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 14:59:25,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-01-14 14:59:25,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 14:59:25,127 INFO L225 Difference]: With dead ends: 159 [2019-01-14 14:59:25,127 INFO L226 Difference]: Without dead ends: 98 [2019-01-14 14:59:25,130 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 14:59:25,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-01-14 14:59:25,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2019-01-14 14:59:25,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-01-14 14:59:25,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 182 transitions. [2019-01-14 14:59:25,177 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 182 transitions. Word has length 21 [2019-01-14 14:59:25,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 14:59:25,178 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 182 transitions. [2019-01-14 14:59:25,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 14:59:25,178 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 182 transitions. [2019-01-14 14:59:25,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-01-14 14:59:25,179 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 14:59:25,179 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 14:59:25,180 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 14:59:25,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 14:59:25,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1323177046, now seen corresponding path program 1 times [2019-01-14 14:59:25,180 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 14:59:25,180 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 14:59:25,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 14:59:25,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 14:59:25,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 14:59:25,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 14:59:25,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 14:59:25,272 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 14:59:25,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 14:59:25,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 14:59:25,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 14:59:25,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 14:59:25,276 INFO L87 Difference]: Start difference. First operand 96 states and 182 transitions. Second operand 3 states. [2019-01-14 14:59:25,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 14:59:25,321 INFO L93 Difference]: Finished difference Result 99 states and 185 transitions. [2019-01-14 14:59:25,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 14:59:25,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-01-14 14:59:25,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 14:59:25,326 INFO L225 Difference]: With dead ends: 99 [2019-01-14 14:59:25,326 INFO L226 Difference]: Without dead ends: 97 [2019-01-14 14:59:25,328 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 14:59:25,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-01-14 14:59:25,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2019-01-14 14:59:25,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-01-14 14:59:25,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 183 transitions. [2019-01-14 14:59:25,356 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 183 transitions. Word has length 21 [2019-01-14 14:59:25,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 14:59:25,356 INFO L480 AbstractCegarLoop]: Abstraction has 97 states and 183 transitions. [2019-01-14 14:59:25,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 14:59:25,357 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 183 transitions. [2019-01-14 14:59:25,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-01-14 14:59:25,358 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 14:59:25,358 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 14:59:25,359 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 14:59:25,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 14:59:25,359 INFO L82 PathProgramCache]: Analyzing trace with hash -670960468, now seen corresponding path program 1 times [2019-01-14 14:59:25,359 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 14:59:25,359 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 14:59:25,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 14:59:25,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 14:59:25,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 14:59:25,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 14:59:25,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 14:59:25,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 14:59:25,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 14:59:25,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 14:59:25,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 14:59:25,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 14:59:25,454 INFO L87 Difference]: Start difference. First operand 97 states and 183 transitions. Second operand 3 states. [2019-01-14 14:59:25,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 14:59:25,532 INFO L93 Difference]: Finished difference Result 232 states and 436 transitions. [2019-01-14 14:59:25,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 14:59:25,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-01-14 14:59:25,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 14:59:25,536 INFO L225 Difference]: With dead ends: 232 [2019-01-14 14:59:25,537 INFO L226 Difference]: Without dead ends: 136 [2019-01-14 14:59:25,541 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 14:59:25,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-01-14 14:59:25,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 134. [2019-01-14 14:59:25,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-01-14 14:59:25,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 249 transitions. [2019-01-14 14:59:25,570 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 249 transitions. Word has length 21 [2019-01-14 14:59:25,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 14:59:25,571 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 249 transitions. [2019-01-14 14:59:25,571 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 14:59:25,571 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 249 transitions. [2019-01-14 14:59:25,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-01-14 14:59:25,572 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 14:59:25,572 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 14:59:25,572 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 14:59:25,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 14:59:25,578 INFO L82 PathProgramCache]: Analyzing trace with hash -670967660, now seen corresponding path program 1 times [2019-01-14 14:59:25,578 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 14:59:25,578 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 14:59:25,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 14:59:25,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 14:59:25,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 14:59:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 14:59:25,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 14:59:25,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 14:59:25,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 14:59:25,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 14:59:25,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 14:59:25,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 14:59:25,661 INFO L87 Difference]: Start difference. First operand 134 states and 249 transitions. Second operand 3 states. [2019-01-14 14:59:25,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 14:59:25,702 INFO L93 Difference]: Finished difference Result 186 states and 340 transitions. [2019-01-14 14:59:25,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 14:59:25,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-01-14 14:59:25,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 14:59:25,704 INFO L225 Difference]: With dead ends: 186 [2019-01-14 14:59:25,705 INFO L226 Difference]: Without dead ends: 134 [2019-01-14 14:59:25,705 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 14:59:25,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-01-14 14:59:25,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2019-01-14 14:59:25,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2019-01-14 14:59:25,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 242 transitions. [2019-01-14 14:59:25,714 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 242 transitions. Word has length 21 [2019-01-14 14:59:25,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 14:59:25,715 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 242 transitions. [2019-01-14 14:59:25,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 14:59:25,715 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 242 transitions. [2019-01-14 14:59:25,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-01-14 14:59:25,716 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 14:59:25,717 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 14:59:25,717 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 14:59:25,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 14:59:25,717 INFO L82 PathProgramCache]: Analyzing trace with hash 2035658926, now seen corresponding path program 1 times [2019-01-14 14:59:25,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 14:59:25,718 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 14:59:25,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 14:59:25,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 14:59:25,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 14:59:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 14:59:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 14:59:25,789 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 14:59:25,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 02:59:25 BoogieIcfgContainer [2019-01-14 14:59:25,837 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 14:59:25,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 14:59:25,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 14:59:25,837 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 14:59:25,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:59:24" (3/4) ... [2019-01-14 14:59:25,840 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-14 14:59:25,914 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 14:59:25,915 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 14:59:25,916 INFO L168 Benchmark]: Toolchain (without parser) took 2402.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 943.3 MB in the beginning and 1.0 GB in the end (delta: -62.1 MB). Peak memory consumption was 42.8 MB. Max. memory is 11.5 GB. [2019-01-14 14:59:25,918 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 14:59:25,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.10 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 14:59:25,919 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.04 ms. Allocated memory is still 1.0 GB. Free memory was 932.5 MB in the beginning and 927.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-14 14:59:25,920 INFO L168 Benchmark]: Boogie Preprocessor took 91.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -172.7 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-01-14 14:59:25,921 INFO L168 Benchmark]: RCFGBuilder took 652.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2019-01-14 14:59:25,921 INFO L168 Benchmark]: TraceAbstraction took 1161.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.4 MB). Peak memory consumption was 54.4 MB. Max. memory is 11.5 GB. [2019-01-14 14:59:25,923 INFO L168 Benchmark]: Witness Printer took 77.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-14 14:59:25,928 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 370.10 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.5 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 42.04 ms. Allocated memory is still 1.0 GB. Free memory was 932.5 MB in the beginning and 927.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 91.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -172.7 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 652.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1161.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.4 MB). Peak memory consumption was 54.4 MB. Max. memory is 11.5 GB. * Witness Printer took 77.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 231]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L6] int p1 = __VERIFIER_nondet_int(); [L7] int lk1; [L9] int p2 = __VERIFIER_nondet_int(); [L10] int lk2; [L12] int p3 = __VERIFIER_nondet_int(); [L13] int lk3; [L15] int p4 = __VERIFIER_nondet_int(); [L16] int lk4; [L18] int p5 = __VERIFIER_nondet_int(); [L19] int lk5; [L21] int p6 = __VERIFIER_nondet_int(); [L22] int lk6; [L24] int p7 = __VERIFIER_nondet_int(); [L25] int lk7; [L27] int p8 = __VERIFIER_nondet_int(); [L28] int lk8; [L30] int p9 = __VERIFIER_nondet_int(); [L31] int lk9; [L33] int p10 = __VERIFIER_nondet_int(); [L34] int lk10; [L36] int p11 = __VERIFIER_nondet_int(); [L37] int lk11; [L39] int p12 = __VERIFIER_nondet_int(); [L40] int lk12; [L42] int p13 = __VERIFIER_nondet_int(); [L43] int lk13; [L45] int p14 = __VERIFIER_nondet_int(); [L46] int lk14; [L48] int p15 = __VERIFIER_nondet_int(); [L49] int lk15; [L52] int cond; [L54] COND TRUE 1 [L55] cond = __VERIFIER_nondet_int() [L56] COND FALSE !(cond == 0) [L59] lk1 = 0 [L61] lk2 = 0 [L63] lk3 = 0 [L65] lk4 = 0 [L67] lk5 = 0 [L69] lk6 = 0 [L71] lk7 = 0 [L73] lk8 = 0 [L75] lk9 = 0 [L77] lk10 = 0 [L79] lk11 = 0 [L81] lk12 = 0 [L83] lk13 = 0 [L85] lk14 = 0 [L87] lk15 = 0 [L91] COND FALSE !(p1 != 0) [L95] COND FALSE !(p2 != 0) [L99] COND FALSE !(p3 != 0) [L103] COND TRUE p4 != 0 [L104] lk4 = 1 [L107] COND TRUE p5 != 0 [L108] lk5 = 1 [L111] COND TRUE p6 != 0 [L112] lk6 = 1 [L115] COND TRUE p7 != 0 [L116] lk7 = 1 [L119] COND TRUE p8 != 0 [L120] lk8 = 1 [L123] COND TRUE p9 != 0 [L124] lk9 = 1 [L127] COND TRUE p10 != 0 [L128] lk10 = 1 [L131] COND FALSE !(p11 != 0) [L135] COND TRUE p12 != 0 [L136] lk12 = 1 [L139] COND TRUE p13 != 0 [L140] lk13 = 1 [L143] COND TRUE p14 != 0 [L144] lk14 = 1 [L147] COND TRUE p15 != 0 [L148] lk15 = 1 [L153] COND FALSE !(p1 != 0) [L158] COND FALSE !(p2 != 0) [L231] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 54 locations, 1 error locations. UNSAFE Result, 1.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 471 SDtfs, 244 SDslu, 303 SDs, 0 SdLazy, 20 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 4640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...