./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/systemc/pc_sfifo_2_false-unreach-call_false-termination.cil.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/systemc/pc_sfifo_2_false-unreach-call_false-termination.cil.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 df684da5e5a56662a7be6091ec5bb0a21e1453c5 ............................................................................................................................................................................................................................................................................................................................................................................................................................... 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 10:08:17,463 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 10:08:17,465 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 10:08:17,482 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 10:08:17,483 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 10:08:17,489 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 10:08:17,490 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 10:08:17,492 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 10:08:17,494 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 10:08:17,498 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 10:08:17,498 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 10:08:17,500 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 10:08:17,501 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 10:08:17,503 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 10:08:17,504 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 10:08:17,504 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 10:08:17,510 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 10:08:17,517 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 10:08:17,524 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 10:08:17,526 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 10:08:17,529 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 10:08:17,531 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 10:08:17,534 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 10:08:17,536 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 10:08:17,536 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 10:08:17,537 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 10:08:17,538 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 10:08:17,538 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 10:08:17,539 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 10:08:17,544 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 10:08:17,544 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 10:08:17,545 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 10:08:17,545 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 10:08:17,545 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 10:08:17,546 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 10:08:17,548 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 10:08:17,548 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 10:08:17,574 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 10:08:17,575 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 10:08:17,576 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 10:08:17,576 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 10:08:17,576 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 10:08:17,577 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 10:08:17,577 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 10:08:17,577 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 10:08:17,577 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 10:08:17,577 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 10:08:17,577 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 10:08:17,578 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 10:08:17,578 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 10:08:17,578 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 10:08:17,578 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 10:08:17,578 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 10:08:17,579 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 10:08:17,579 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 10:08:17,579 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 10:08:17,579 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 10:08:17,579 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 10:08:17,580 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 10:08:17,580 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 10:08:17,580 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 10:08:17,580 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 10:08:17,580 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 10:08:17,581 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 10:08:17,581 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 10:08:17,581 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 -> df684da5e5a56662a7be6091ec5bb0a21e1453c5 [2018-12-31 10:08:17,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 10:08:17,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 10:08:17,660 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 10:08:17,662 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 10:08:17,663 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 10:08:17,665 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/systemc/pc_sfifo_2_false-unreach-call_false-termination.cil.c [2018-12-31 10:08:17,736 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cfc61347/0bde98d14cef48d6af77f0e18e8dc0ee/FLAG6468c2b37 [2018-12-31 10:08:18,238 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 10:08:18,239 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/systemc/pc_sfifo_2_false-unreach-call_false-termination.cil.c [2018-12-31 10:08:18,250 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cfc61347/0bde98d14cef48d6af77f0e18e8dc0ee/FLAG6468c2b37 [2018-12-31 10:08:18,591 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cfc61347/0bde98d14cef48d6af77f0e18e8dc0ee [2018-12-31 10:08:18,594 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 10:08:18,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 10:08:18,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 10:08:18,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 10:08:18,601 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 10:08:18,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 10:08:18" (1/1) ... [2018-12-31 10:08:18,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf28d0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:08:18, skipping insertion in model container [2018-12-31 10:08:18,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 10:08:18" (1/1) ... [2018-12-31 10:08:18,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 10:08:18,660 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 10:08:18,890 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 10:08:18,902 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 10:08:18,984 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 10:08:19,006 INFO L195 MainTranslator]: Completed translation [2018-12-31 10:08:19,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:08:19 WrapperNode [2018-12-31 10:08:19,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 10:08:19,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 10:08:19,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 10:08:19,010 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 10:08:19,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:08:19" (1/1) ... [2018-12-31 10:08:19,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:08:19" (1/1) ... [2018-12-31 10:08:19,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 10:08:19,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 10:08:19,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 10:08:19,081 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 10:08:19,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:08:19" (1/1) ... [2018-12-31 10:08:19,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:08:19" (1/1) ... [2018-12-31 10:08:19,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:08:19" (1/1) ... [2018-12-31 10:08:19,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:08:19" (1/1) ... [2018-12-31 10:08:19,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:08:19" (1/1) ... [2018-12-31 10:08:19,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:08:19" (1/1) ... [2018-12-31 10:08:19,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:08:19" (1/1) ... [2018-12-31 10:08:19,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 10:08:19,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 10:08:19,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 10:08:19,186 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 10:08:19,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:08:19" (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 10:08:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 10:08:19,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 10:08:20,211 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 10:08:20,212 INFO L280 CfgBuilder]: Removed 60 assue(true) statements. [2018-12-31 10:08:20,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 10:08:20 BoogieIcfgContainer [2018-12-31 10:08:20,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 10:08:20,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 10:08:20,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 10:08:20,217 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 10:08:20,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 10:08:18" (1/3) ... [2018-12-31 10:08:20,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32dc64d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 10:08:20, skipping insertion in model container [2018-12-31 10:08:20,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 10:08:19" (2/3) ... [2018-12-31 10:08:20,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32dc64d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 10:08:20, skipping insertion in model container [2018-12-31 10:08:20,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 10:08:20" (3/3) ... [2018-12-31 10:08:20,222 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_2_false-unreach-call_false-termination.cil.c [2018-12-31 10:08:20,231 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 10:08:20,240 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-31 10:08:20,256 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-31 10:08:20,291 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 10:08:20,292 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 10:08:20,292 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 10:08:20,292 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 10:08:20,292 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 10:08:20,293 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 10:08:20,293 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 10:08:20,293 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 10:08:20,293 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 10:08:20,313 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2018-12-31 10:08:20,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-31 10:08:20,321 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 10:08:20,322 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 10:08:20,325 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 10:08:20,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 10:08:20,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1129554405, now seen corresponding path program 1 times [2018-12-31 10:08:20,334 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 10:08:20,335 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 10:08:20,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:08:20,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 10:08:20,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:08:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 10:08:20,503 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 10:08:20,506 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 10:08:20,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 10:08:20,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 10:08:20,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 10:08:20,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 10:08:20,528 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 3 states. [2018-12-31 10:08:20,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 10:08:20,666 INFO L93 Difference]: Finished difference Result 272 states and 425 transitions. [2018-12-31 10:08:20,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 10:08:20,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2018-12-31 10:08:20,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 10:08:20,683 INFO L225 Difference]: With dead ends: 272 [2018-12-31 10:08:20,683 INFO L226 Difference]: Without dead ends: 178 [2018-12-31 10:08:20,687 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 10:08:20,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-12-31 10:08:20,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 172. [2018-12-31 10:08:20,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2018-12-31 10:08:20,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 252 transitions. [2018-12-31 10:08:20,749 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 252 transitions. Word has length 33 [2018-12-31 10:08:20,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 10:08:20,750 INFO L480 AbstractCegarLoop]: Abstraction has 172 states and 252 transitions. [2018-12-31 10:08:20,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 10:08:20,750 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 252 transitions. [2018-12-31 10:08:20,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-31 10:08:20,752 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 10:08:20,752 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 10:08:20,752 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 10:08:20,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 10:08:20,753 INFO L82 PathProgramCache]: Analyzing trace with hash 875581448, now seen corresponding path program 1 times [2018-12-31 10:08:20,753 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 10:08:20,753 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 10:08:20,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:08:20,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 10:08:20,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:08:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 10:08:20,854 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 10:08:20,855 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 10:08:20,855 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 10:08:20,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 10:08:20,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 10:08:20,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 10:08:20,858 INFO L87 Difference]: Start difference. First operand 172 states and 252 transitions. Second operand 3 states. [2018-12-31 10:08:21,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 10:08:21,066 INFO L93 Difference]: Finished difference Result 495 states and 723 transitions. [2018-12-31 10:08:21,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 10:08:21,069 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2018-12-31 10:08:21,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 10:08:21,073 INFO L225 Difference]: With dead ends: 495 [2018-12-31 10:08:21,074 INFO L226 Difference]: Without dead ends: 339 [2018-12-31 10:08:21,076 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 10:08:21,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2018-12-31 10:08:21,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 333. [2018-12-31 10:08:21,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2018-12-31 10:08:21,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 482 transitions. [2018-12-31 10:08:21,134 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 482 transitions. Word has length 33 [2018-12-31 10:08:21,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 10:08:21,135 INFO L480 AbstractCegarLoop]: Abstraction has 333 states and 482 transitions. [2018-12-31 10:08:21,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 10:08:21,135 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 482 transitions. [2018-12-31 10:08:21,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-31 10:08:21,138 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 10:08:21,138 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 10:08:21,138 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 10:08:21,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 10:08:21,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1133746886, now seen corresponding path program 1 times [2018-12-31 10:08:21,139 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 10:08:21,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 10:08:21,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:08:21,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 10:08:21,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:08:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 10:08:21,351 WARN L181 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 5 [2018-12-31 10:08:21,354 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 10:08:21,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 10:08:21,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 10:08:21,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 10:08:21,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 10:08:21,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 10:08:21,357 INFO L87 Difference]: Start difference. First operand 333 states and 482 transitions. Second operand 5 states. [2018-12-31 10:08:21,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 10:08:21,755 INFO L93 Difference]: Finished difference Result 1067 states and 1549 transitions. [2018-12-31 10:08:21,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 10:08:21,757 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2018-12-31 10:08:21,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 10:08:21,763 INFO L225 Difference]: With dead ends: 1067 [2018-12-31 10:08:21,763 INFO L226 Difference]: Without dead ends: 789 [2018-12-31 10:08:21,770 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-31 10:08:21,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2018-12-31 10:08:21,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 345. [2018-12-31 10:08:21,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2018-12-31 10:08:21,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 490 transitions. [2018-12-31 10:08:21,839 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 490 transitions. Word has length 33 [2018-12-31 10:08:21,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 10:08:21,840 INFO L480 AbstractCegarLoop]: Abstraction has 345 states and 490 transitions. [2018-12-31 10:08:21,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 10:08:21,840 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 490 transitions. [2018-12-31 10:08:21,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-31 10:08:21,846 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 10:08:21,846 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 10:08:21,847 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 10:08:21,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 10:08:21,847 INFO L82 PathProgramCache]: Analyzing trace with hash 316098436, now seen corresponding path program 1 times [2018-12-31 10:08:21,847 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 10:08:21,847 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 10:08:21,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:08:21,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 10:08:21,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 10:08:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 10:08:21,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 10:08:21,956 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 10:08:22,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 10:08:22 BoogieIcfgContainer [2018-12-31 10:08:22,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 10:08:22,055 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 10:08:22,055 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 10:08:22,055 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 10:08:22,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 10:08:20" (3/4) ... [2018-12-31 10:08:22,058 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 10:08:22,156 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 10:08:22,156 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 10:08:22,157 INFO L168 Benchmark]: Toolchain (without parser) took 3562.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 947.3 MB in the beginning and 995.6 MB in the end (delta: -48.3 MB). Peak memory consumption was 80.1 MB. Max. memory is 11.5 GB. [2018-12-31 10:08:22,159 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 10:08:22,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.30 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 929.9 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-12-31 10:08:22,160 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.13 ms. Allocated memory is still 1.0 GB. Free memory is still 929.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 10:08:22,160 INFO L168 Benchmark]: Boogie Preprocessor took 104.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -186.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-12-31 10:08:22,162 INFO L168 Benchmark]: RCFGBuilder took 1026.35 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-12-31 10:08:22,162 INFO L168 Benchmark]: TraceAbstraction took 1841.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.6 MB in the end (delta: 87.8 MB). Peak memory consumption was 87.8 MB. Max. memory is 11.5 GB. [2018-12-31 10:08:22,163 INFO L168 Benchmark]: Witness Printer took 101.75 ms. Allocated memory is still 1.2 GB. Free memory is still 995.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 10:08:22,167 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 410.30 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 929.9 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 73.13 ms. Allocated memory is still 1.0 GB. Free memory is still 929.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 104.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -186.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1026.35 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: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1841.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.6 MB in the end (delta: 87.8 MB). Peak memory consumption was 87.8 MB. Max. memory is 11.5 GB. * Witness Printer took 101.75 ms. Allocated memory is still 1.2 GB. Free memory is still 995.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int q_buf_0 ; [L16] int q_free ; [L17] int q_read_ev ; [L18] int q_write_ev ; [L19] int q_req_up ; [L20] int q_ev ; [L41] int p_num_write ; [L42] int p_last_write ; [L43] int p_dw_st ; [L44] int p_dw_pc ; [L45] int p_dw_i ; [L46] int c_num_read ; [L47] int c_last_read ; [L48] int c_dr_st ; [L49] int c_dr_pc ; [L50] int c_dr_i ; [L154] static int a_t ; VAL [a_t=0, c_dr_i=0, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=0, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=0, q_read_ev=0, q_req_up=0, q_write_ev=0] [L456] int __retres1 ; [L442] q_free = 1 [L443] q_write_ev = 2 [L444] q_read_ev = q_write_ev [L445] p_num_write = 0 [L446] p_dw_pc = 0 [L447] p_dw_i = 1 [L448] c_num_read = 0 [L449] c_dr_pc = 0 [L450] c_dr_i = 1 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L396] int kernel_st ; [L397] int tmp ; [L401] kernel_st = 0 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L212] COND FALSE !((int )q_req_up == 1) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L227] COND TRUE (int )p_dw_i == 1 [L228] p_dw_st = 0 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L232] COND TRUE (int )c_dr_i == 1 [L233] c_dr_st = 0 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L265] COND FALSE !((int )q_read_ev == 0) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L270] COND FALSE !((int )q_write_ev == 0) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L298] int tmp ; [L299] int tmp___0 ; [L52] int __retres1 ; VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L55] COND FALSE !((int )p_dw_pc == 1) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L65] __retres1 = 0 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L67] return (__retres1); VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L303] tmp = is_do_write_p_triggered() [L305] COND FALSE !(\read(tmp)) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L71] int __retres1 ; VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L74] COND FALSE !((int )c_dr_pc == 1) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L84] __retres1 = 0 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L86] return (__retres1); VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L311] tmp___0 = is_do_read_c_triggered() [L313] COND FALSE !(\read(tmp___0)) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L283] COND FALSE !((int )q_read_ev == 1) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L288] COND FALSE !((int )q_write_ev == 1) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L409] COND TRUE 1 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L412] kernel_st = 1 [L323] int tmp ; [L324] int tmp___0 ; [L325] int tmp___1 ; VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L329] COND TRUE 1 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L242] int __retres1 ; VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L245] COND TRUE (int )p_dw_st == 0 [L246] __retres1 = 1 VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L258] return (__retres1); VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L332] tmp___1 = exists_runnable_thread() [L334] COND TRUE \read(tmp___1) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L339] COND TRUE (int )p_dw_st == 0 [L341] tmp = __VERIFIER_nondet_int() [L343] COND FALSE !(\read(tmp)) VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] [L10] __VERIFIER_error() VAL [a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_ev=0, q_free=1, q_read_ev=2, q_req_up=0, q_write_ev=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 96 locations, 3 error locations. UNSAFE Result, 1.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 414 SDtfs, 625 SDslu, 807 SDs, 0 SdLazy, 64 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=345occurred 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: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 456 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 5248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...