./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec3_product55_false-unreach-call_false-termination.cil.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/product-lines/minepump_spec3_product55_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 07b1c242ee38ca5843c5ca9be19cecfe3ff6bd0c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2019-01-12 14:48:18,222 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 14:48:18,224 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 14:48:18,236 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 14:48:18,236 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 14:48:18,237 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 14:48:18,238 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 14:48:18,240 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 14:48:18,241 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 14:48:18,242 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 14:48:18,243 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 14:48:18,243 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 14:48:18,244 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 14:48:18,245 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 14:48:18,246 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 14:48:18,247 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 14:48:18,248 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 14:48:18,250 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 14:48:18,252 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 14:48:18,253 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 14:48:18,254 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 14:48:18,256 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 14:48:18,258 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 14:48:18,258 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 14:48:18,259 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 14:48:18,260 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 14:48:18,261 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 14:48:18,262 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 14:48:18,262 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 14:48:18,264 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 14:48:18,264 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 14:48:18,265 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 14:48:18,265 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 14:48:18,265 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 14:48:18,266 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 14:48:18,267 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 14:48:18,268 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 14:48:18,299 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 14:48:18,299 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 14:48:18,300 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 14:48:18,300 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 14:48:18,301 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 14:48:18,302 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 14:48:18,302 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 14:48:18,302 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 14:48:18,302 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 14:48:18,303 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 14:48:18,303 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 14:48:18,303 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 14:48:18,303 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 14:48:18,303 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 14:48:18,303 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 14:48:18,303 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 14:48:18,306 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 14:48:18,306 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 14:48:18,306 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 14:48:18,307 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 14:48:18,307 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 14:48:18,307 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 14:48:18,307 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 14:48:18,307 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 14:48:18,307 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 14:48:18,308 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 14:48:18,308 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 14:48:18,308 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 14:48:18,308 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 -> 07b1c242ee38ca5843c5ca9be19cecfe3ff6bd0c [2019-01-12 14:48:18,371 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 14:48:18,386 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 14:48:18,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 14:48:18,393 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 14:48:18,394 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 14:48:18,394 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product55_false-unreach-call_false-termination.cil.c [2019-01-12 14:48:18,454 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d8c9443a/0328b62103dd47de897b06617fce9b32/FLAG545971238 [2019-01-12 14:48:19,014 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 14:48:19,015 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product55_false-unreach-call_false-termination.cil.c [2019-01-12 14:48:19,040 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d8c9443a/0328b62103dd47de897b06617fce9b32/FLAG545971238 [2019-01-12 14:48:19,251 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d8c9443a/0328b62103dd47de897b06617fce9b32 [2019-01-12 14:48:19,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 14:48:19,259 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 14:48:19,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 14:48:19,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 14:48:19,264 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 14:48:19,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 02:48:19" (1/1) ... [2019-01-12 14:48:19,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dec5400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:19, skipping insertion in model container [2019-01-12 14:48:19,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 02:48:19" (1/1) ... [2019-01-12 14:48:19,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 14:48:19,343 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 14:48:19,821 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 14:48:19,842 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 14:48:20,056 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 14:48:20,100 INFO L195 MainTranslator]: Completed translation [2019-01-12 14:48:20,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:20 WrapperNode [2019-01-12 14:48:20,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 14:48:20,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 14:48:20,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 14:48:20,102 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 14:48:20,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:20" (1/1) ... [2019-01-12 14:48:20,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:20" (1/1) ... [2019-01-12 14:48:20,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 14:48:20,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 14:48:20,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 14:48:20,197 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 14:48:20,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:20" (1/1) ... [2019-01-12 14:48:20,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:20" (1/1) ... [2019-01-12 14:48:20,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:20" (1/1) ... [2019-01-12 14:48:20,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:20" (1/1) ... [2019-01-12 14:48:20,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:20" (1/1) ... [2019-01-12 14:48:20,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:20" (1/1) ... [2019-01-12 14:48:20,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:20" (1/1) ... [2019-01-12 14:48:20,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 14:48:20,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 14:48:20,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 14:48:20,267 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 14:48:20,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:20" (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 [2019-01-12 14:48:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 14:48:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-12 14:48:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 14:48:20,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 14:48:21,945 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 14:48:21,946 INFO L286 CfgBuilder]: Removed 286 assue(true) statements. [2019-01-12 14:48:21,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:48:21 BoogieIcfgContainer [2019-01-12 14:48:21,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 14:48:21,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 14:48:21,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 14:48:21,952 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 14:48:21,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 02:48:19" (1/3) ... [2019-01-12 14:48:21,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe2c358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 02:48:21, skipping insertion in model container [2019-01-12 14:48:21,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:20" (2/3) ... [2019-01-12 14:48:21,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fe2c358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 02:48:21, skipping insertion in model container [2019-01-12 14:48:21,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:48:21" (3/3) ... [2019-01-12 14:48:21,956 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55_false-unreach-call_false-termination.cil.c [2019-01-12 14:48:21,966 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 14:48:21,974 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-12 14:48:21,991 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-12 14:48:22,020 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 14:48:22,020 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 14:48:22,021 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 14:48:22,021 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 14:48:22,021 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 14:48:22,021 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 14:48:22,021 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 14:48:22,022 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 14:48:22,022 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 14:48:22,046 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2019-01-12 14:48:22,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-01-12 14:48:22,055 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:22,056 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:48:22,058 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:22,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:22,067 INFO L82 PathProgramCache]: Analyzing trace with hash -477478196, now seen corresponding path program 1 times [2019-01-12 14:48:22,069 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:22,069 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:22,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:22,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:22,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:22,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:48:22,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:22,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 14:48:22,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-12 14:48:22,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-12 14:48:22,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 14:48:22,325 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 2 states. [2019-01-12 14:48:22,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:22,382 INFO L93 Difference]: Finished difference Result 388 states and 593 transitions. [2019-01-12 14:48:22,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-12 14:48:22,388 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-01-12 14:48:22,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:22,406 INFO L225 Difference]: With dead ends: 388 [2019-01-12 14:48:22,407 INFO L226 Difference]: Without dead ends: 193 [2019-01-12 14:48:22,411 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 14:48:22,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-01-12 14:48:22,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2019-01-12 14:48:22,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-01-12 14:48:22,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 288 transitions. [2019-01-12 14:48:22,475 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 288 transitions. Word has length 18 [2019-01-12 14:48:22,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:22,475 INFO L480 AbstractCegarLoop]: Abstraction has 193 states and 288 transitions. [2019-01-12 14:48:22,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-12 14:48:22,476 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 288 transitions. [2019-01-12 14:48:22,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-12 14:48:22,477 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:22,477 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:48:22,478 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:22,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:22,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1388508949, now seen corresponding path program 1 times [2019-01-12 14:48:22,478 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:22,479 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:22,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:22,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:22,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:22,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:48:22,626 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:22,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 14:48:22,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 14:48:22,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 14:48:22,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:22,630 INFO L87 Difference]: Start difference. First operand 193 states and 288 transitions. Second operand 3 states. [2019-01-12 14:48:22,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:22,675 INFO L93 Difference]: Finished difference Result 193 states and 288 transitions. [2019-01-12 14:48:22,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 14:48:22,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-01-12 14:48:22,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:22,678 INFO L225 Difference]: With dead ends: 193 [2019-01-12 14:48:22,678 INFO L226 Difference]: Without dead ends: 75 [2019-01-12 14:48:22,680 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 [2019-01-12 14:48:22,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-01-12 14:48:22,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2019-01-12 14:48:22,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2019-01-12 14:48:22,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2019-01-12 14:48:22,689 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 111 transitions. Word has length 19 [2019-01-12 14:48:22,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:22,689 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 111 transitions. [2019-01-12 14:48:22,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 14:48:22,689 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 111 transitions. [2019-01-12 14:48:22,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-01-12 14:48:22,692 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:22,692 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] [2019-01-12 14:48:22,692 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:22,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:22,693 INFO L82 PathProgramCache]: Analyzing trace with hash -521457096, now seen corresponding path program 1 times [2019-01-12 14:48:22,693 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:22,694 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:22,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:22,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:22,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:22,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:48:22,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:22,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 14:48:22,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 14:48:22,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 14:48:22,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:22,850 INFO L87 Difference]: Start difference. First operand 75 states and 111 transitions. Second operand 3 states. [2019-01-12 14:48:22,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:22,942 INFO L93 Difference]: Finished difference Result 213 states and 321 transitions. [2019-01-12 14:48:22,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 14:48:22,945 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-01-12 14:48:22,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:22,946 INFO L225 Difference]: With dead ends: 213 [2019-01-12 14:48:22,946 INFO L226 Difference]: Without dead ends: 144 [2019-01-12 14:48:22,947 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:22,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-01-12 14:48:22,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 140. [2019-01-12 14:48:22,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-01-12 14:48:22,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 211 transitions. [2019-01-12 14:48:22,963 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 211 transitions. Word has length 24 [2019-01-12 14:48:22,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:22,963 INFO L480 AbstractCegarLoop]: Abstraction has 140 states and 211 transitions. [2019-01-12 14:48:22,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 14:48:22,964 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 211 transitions. [2019-01-12 14:48:22,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-01-12 14:48:22,965 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:22,965 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] [2019-01-12 14:48:22,966 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:22,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:22,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1870578463, now seen corresponding path program 1 times [2019-01-12 14:48:22,967 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:22,968 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:22,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:22,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:22,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:23,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:48:23,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:23,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 14:48:23,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 14:48:23,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 14:48:23,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:23,047 INFO L87 Difference]: Start difference. First operand 140 states and 211 transitions. Second operand 3 states. [2019-01-12 14:48:23,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:23,148 INFO L93 Difference]: Finished difference Result 295 states and 448 transitions. [2019-01-12 14:48:23,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 14:48:23,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-01-12 14:48:23,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:23,155 INFO L225 Difference]: With dead ends: 295 [2019-01-12 14:48:23,155 INFO L226 Difference]: Without dead ends: 161 [2019-01-12 14:48:23,157 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:23,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-01-12 14:48:23,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 159. [2019-01-12 14:48:23,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-01-12 14:48:23,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 231 transitions. [2019-01-12 14:48:23,185 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 231 transitions. Word has length 27 [2019-01-12 14:48:23,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:23,186 INFO L480 AbstractCegarLoop]: Abstraction has 159 states and 231 transitions. [2019-01-12 14:48:23,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 14:48:23,186 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 231 transitions. [2019-01-12 14:48:23,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-01-12 14:48:23,188 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:23,191 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] [2019-01-12 14:48:23,191 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:23,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:23,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1382032589, now seen corresponding path program 1 times [2019-01-12 14:48:23,192 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:23,192 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:23,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:23,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:23,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:23,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:48:23,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:23,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-12 14:48:23,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 14:48:23,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 14:48:23,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-12 14:48:23,392 INFO L87 Difference]: Start difference. First operand 159 states and 231 transitions. Second operand 5 states. [2019-01-12 14:48:23,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:23,918 INFO L93 Difference]: Finished difference Result 809 states and 1191 transitions. [2019-01-12 14:48:23,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-12 14:48:23,919 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-01-12 14:48:23,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:23,924 INFO L225 Difference]: With dead ends: 809 [2019-01-12 14:48:23,925 INFO L226 Difference]: Without dead ends: 656 [2019-01-12 14:48:23,926 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-12 14:48:23,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2019-01-12 14:48:23,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 252. [2019-01-12 14:48:23,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2019-01-12 14:48:23,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 356 transitions. [2019-01-12 14:48:23,993 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 356 transitions. Word has length 27 [2019-01-12 14:48:23,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:23,993 INFO L480 AbstractCegarLoop]: Abstraction has 252 states and 356 transitions. [2019-01-12 14:48:23,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 14:48:23,994 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 356 transitions. [2019-01-12 14:48:23,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-01-12 14:48:23,999 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:23,999 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] [2019-01-12 14:48:24,000 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:24,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:24,000 INFO L82 PathProgramCache]: Analyzing trace with hash -318231153, now seen corresponding path program 1 times [2019-01-12 14:48:24,000 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:24,001 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:24,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:24,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:24,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 14:48:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 14:48:24,842 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 14:48:24,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 02:48:24 BoogieIcfgContainer [2019-01-12 14:48:24,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 14:48:24,963 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 14:48:24,964 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 14:48:24,964 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 14:48:24,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:48:21" (3/4) ... [2019-01-12 14:48:24,969 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-12 14:48:25,085 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 14:48:25,086 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 14:48:25,086 INFO L168 Benchmark]: Toolchain (without parser) took 5828.56 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 226.5 MB). Free memory was 947.3 MB in the beginning and 1.2 GB in the end (delta: -216.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:25,088 INFO L168 Benchmark]: CDTParser took 0.17 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. [2019-01-12 14:48:25,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 841.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 37.1 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:25,089 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.61 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:25,090 INFO L168 Benchmark]: Boogie Preprocessor took 69.83 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:25,092 INFO L168 Benchmark]: RCFGBuilder took 1680.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.8 MB). Peak memory consumption was 80.8 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:25,094 INFO L168 Benchmark]: TraceAbstraction took 3015.09 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 89.7 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -143.0 MB). Peak memory consumption was 243.5 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:25,095 INFO L168 Benchmark]: Witness Printer took 122.21 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:25,104 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 841.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 37.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 94.61 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.83 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1680.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.8 MB). Peak memory consumption was 80.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3015.09 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 89.7 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -143.0 MB). Peak memory consumption was 243.5 MB. Max. memory is 11.5 GB. * Witness Printer took 122.21 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 193]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L564] int cleanupTimeShifts = 4; [L667] int pumpRunning = 0; [L668] int systemActive = 1; [L640] int retValue_acc ; [L641] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L647] tmp = valid_product() [L649] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L950] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L952] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L984] tmp___1 = __VERIFIER_nondet_int() [L986] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L894] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L901] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L675] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L682] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L919] tmp___0 = getWaterLevel() [L921] COND TRUE tmp___0 == 2 [L808] int retValue_acc ; [L811] retValue_acc = pumpRunning [L812] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L923] tmp___1 = isPumpRunning() [L925] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L193] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 197 locations, 3 error locations. UNSAFE Result, 2.9s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 753 SDtfs, 586 SDslu, 523 SDs, 0 SdLazy, 73 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=5, 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, 5 MinimizatonAttempts, 410 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 5388 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...