./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec3_product43_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_product43_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 6b50f176f9cc083683ce70010cc4357ff865e696 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:48:09,203 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 14:48:09,207 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 14:48:09,228 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 14:48:09,229 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 14:48:09,231 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 14:48:09,233 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 14:48:09,235 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 14:48:09,236 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 14:48:09,237 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 14:48:09,238 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 14:48:09,239 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 14:48:09,240 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 14:48:09,241 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 14:48:09,242 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 14:48:09,242 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 14:48:09,243 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 14:48:09,245 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 14:48:09,247 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 14:48:09,249 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 14:48:09,250 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 14:48:09,252 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 14:48:09,254 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 14:48:09,254 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 14:48:09,255 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 14:48:09,256 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 14:48:09,257 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 14:48:09,257 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 14:48:09,258 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 14:48:09,261 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 14:48:09,261 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 14:48:09,262 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 14:48:09,262 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 14:48:09,263 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 14:48:09,266 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 14:48:09,267 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 14:48:09,267 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 14:48:09,295 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 14:48:09,296 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 14:48:09,298 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 14:48:09,298 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 14:48:09,298 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 14:48:09,298 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 14:48:09,299 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 14:48:09,299 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 14:48:09,299 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 14:48:09,299 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 14:48:09,299 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 14:48:09,299 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 14:48:09,300 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 14:48:09,300 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 14:48:09,300 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 14:48:09,300 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 14:48:09,300 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 14:48:09,300 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 14:48:09,301 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 14:48:09,301 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 14:48:09,301 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 14:48:09,301 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 14:48:09,301 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 14:48:09,302 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 14:48:09,302 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 14:48:09,302 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 14:48:09,302 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 14:48:09,302 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 14:48:09,302 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 -> 6b50f176f9cc083683ce70010cc4357ff865e696 [2019-01-12 14:48:09,339 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 14:48:09,352 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 14:48:09,355 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 14:48:09,357 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 14:48:09,357 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 14:48:09,358 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product43_false-unreach-call_false-termination.cil.c [2019-01-12 14:48:09,430 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4adfd3369/5172abe1e5db4a59af2bb6e027dcb333/FLAG905ddef55 [2019-01-12 14:48:09,942 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 14:48:09,945 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product43_false-unreach-call_false-termination.cil.c [2019-01-12 14:48:09,961 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4adfd3369/5172abe1e5db4a59af2bb6e027dcb333/FLAG905ddef55 [2019-01-12 14:48:10,232 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4adfd3369/5172abe1e5db4a59af2bb6e027dcb333 [2019-01-12 14:48:10,236 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 14:48:10,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 14:48:10,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 14:48:10,239 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 14:48:10,243 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 14:48:10,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:10,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@672937de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10, skipping insertion in model container [2019-01-12 14:48:10,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:10,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 14:48:10,310 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 14:48:10,680 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 14:48:10,704 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 14:48:10,874 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 14:48:10,915 INFO L195 MainTranslator]: Completed translation [2019-01-12 14:48:10,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10 WrapperNode [2019-01-12 14:48:10,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 14:48:10,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 14:48:10,917 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 14:48:10,917 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 14:48:10,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:10,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:10,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 14:48:10,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 14:48:10,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 14:48:10,990 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 14:48:11,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:11,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:11,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:11,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:11,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:11,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:11,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:11,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 14:48:11,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 14:48:11,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 14:48:11,040 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 14:48:11,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (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 14:48:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 14:48:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-12 14:48:11,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 14:48:11,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 14:48:12,306 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 14:48:12,306 INFO L286 CfgBuilder]: Removed 124 assue(true) statements. [2019-01-12 14:48:12,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:48:12 BoogieIcfgContainer [2019-01-12 14:48:12,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 14:48:12,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 14:48:12,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 14:48:12,312 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 14:48:12,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 02:48:10" (1/3) ... [2019-01-12 14:48:12,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650beece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 02:48:12, skipping insertion in model container [2019-01-12 14:48:12,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (2/3) ... [2019-01-12 14:48:12,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650beece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 02:48:12, skipping insertion in model container [2019-01-12 14:48:12,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:48:12" (3/3) ... [2019-01-12 14:48:12,316 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43_false-unreach-call_false-termination.cil.c [2019-01-12 14:48:12,326 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 14:48:12,334 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-12 14:48:12,351 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-12 14:48:12,384 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 14:48:12,384 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 14:48:12,385 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 14:48:12,385 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 14:48:12,385 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 14:48:12,385 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 14:48:12,385 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 14:48:12,386 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 14:48:12,386 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 14:48:12,404 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-01-12 14:48:12,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-01-12 14:48:12,412 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:12,413 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 14:48:12,415 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:12,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:12,422 INFO L82 PathProgramCache]: Analyzing trace with hash 725412282, now seen corresponding path program 1 times [2019-01-12 14:48:12,423 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:12,424 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:12,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:12,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:12,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:12,690 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 14:48:12,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:12,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 14:48:12,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-12 14:48:12,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-12 14:48:12,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 14:48:12,716 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 2 states. [2019-01-12 14:48:12,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:12,757 INFO L93 Difference]: Finished difference Result 184 states and 275 transitions. [2019-01-12 14:48:12,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-12 14:48:12,759 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-01-12 14:48:12,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:12,777 INFO L225 Difference]: With dead ends: 184 [2019-01-12 14:48:12,778 INFO L226 Difference]: Without dead ends: 91 [2019-01-12 14:48:12,782 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 14:48:12,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-01-12 14:48:12,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2019-01-12 14:48:12,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-01-12 14:48:12,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 129 transitions. [2019-01-12 14:48:12,830 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 129 transitions. Word has length 18 [2019-01-12 14:48:12,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:12,830 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 129 transitions. [2019-01-12 14:48:12,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-12 14:48:12,831 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 129 transitions. [2019-01-12 14:48:12,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-12 14:48:12,832 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:12,832 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 14:48:12,833 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:12,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:12,833 INFO L82 PathProgramCache]: Analyzing trace with hash -185618471, now seen corresponding path program 1 times [2019-01-12 14:48:12,834 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:12,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:12,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:12,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:12,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:13,002 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 14:48:13,002 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:13,002 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 14:48:13,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 14:48:13,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 14:48:13,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:13,006 INFO L87 Difference]: Start difference. First operand 91 states and 129 transitions. Second operand 3 states. [2019-01-12 14:48:13,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:13,032 INFO L93 Difference]: Finished difference Result 91 states and 129 transitions. [2019-01-12 14:48:13,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 14:48:13,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-01-12 14:48:13,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:13,034 INFO L225 Difference]: With dead ends: 91 [2019-01-12 14:48:13,035 INFO L226 Difference]: Without dead ends: 41 [2019-01-12 14:48:13,036 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 14:48:13,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-01-12 14:48:13,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-01-12 14:48:13,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-01-12 14:48:13,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2019-01-12 14:48:13,044 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 19 [2019-01-12 14:48:13,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:13,044 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2019-01-12 14:48:13,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 14:48:13,045 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2019-01-12 14:48:13,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-01-12 14:48:13,046 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:13,046 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 14:48:13,047 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:13,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:13,047 INFO L82 PathProgramCache]: Analyzing trace with hash -2096218593, now seen corresponding path program 1 times [2019-01-12 14:48:13,047 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:13,048 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:13,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:13,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:13,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:13,268 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 14:48:13,269 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:13,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-12 14:48:13,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-12 14:48:13,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-12 14:48:13,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-01-12 14:48:13,271 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand 6 states. [2019-01-12 14:48:13,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:13,435 INFO L93 Difference]: Finished difference Result 136 states and 199 transitions. [2019-01-12 14:48:13,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-12 14:48:13,437 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-01-12 14:48:13,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:13,439 INFO L225 Difference]: With dead ends: 136 [2019-01-12 14:48:13,439 INFO L226 Difference]: Without dead ends: 101 [2019-01-12 14:48:13,440 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-12 14:48:13,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-01-12 14:48:13,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 62. [2019-01-12 14:48:13,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2019-01-12 14:48:13,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2019-01-12 14:48:13,453 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 90 transitions. Word has length 24 [2019-01-12 14:48:13,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:13,453 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 90 transitions. [2019-01-12 14:48:13,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-12 14:48:13,454 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2019-01-12 14:48:13,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-01-12 14:48:13,455 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:13,456 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] [2019-01-12 14:48:13,456 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:13,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:13,457 INFO L82 PathProgramCache]: Analyzing trace with hash 68887907, now seen corresponding path program 1 times [2019-01-12 14:48:13,457 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:13,457 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:13,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:13,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:13,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:13,578 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 14:48:13,578 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:13,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 14:48:13,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 14:48:13,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 14:48:13,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:13,580 INFO L87 Difference]: Start difference. First operand 62 states and 90 transitions. Second operand 3 states. [2019-01-12 14:48:13,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:13,743 INFO L93 Difference]: Finished difference Result 141 states and 207 transitions. [2019-01-12 14:48:13,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 14:48:13,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-01-12 14:48:13,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:13,746 INFO L225 Difference]: With dead ends: 141 [2019-01-12 14:48:13,746 INFO L226 Difference]: Without dead ends: 85 [2019-01-12 14:48:13,747 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 14:48:13,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-01-12 14:48:13,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 83. [2019-01-12 14:48:13,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-01-12 14:48:13,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 118 transitions. [2019-01-12 14:48:13,764 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 118 transitions. Word has length 25 [2019-01-12 14:48:13,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:13,764 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 118 transitions. [2019-01-12 14:48:13,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 14:48:13,764 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 118 transitions. [2019-01-12 14:48:13,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-01-12 14:48:13,766 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:13,766 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 14:48:13,766 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:13,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:13,768 INFO L82 PathProgramCache]: Analyzing trace with hash -192728908, now seen corresponding path program 1 times [2019-01-12 14:48:13,768 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:13,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:13,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:13,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:13,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:13,935 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 14:48:13,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:13,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-12 14:48:13,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 14:48:13,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 14:48:13,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-12 14:48:13,937 INFO L87 Difference]: Start difference. First operand 83 states and 118 transitions. Second operand 5 states. [2019-01-12 14:48:14,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:14,779 INFO L93 Difference]: Finished difference Result 448 states and 656 transitions. [2019-01-12 14:48:14,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-12 14:48:14,780 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-01-12 14:48:14,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:14,783 INFO L225 Difference]: With dead ends: 448 [2019-01-12 14:48:14,783 INFO L226 Difference]: Without dead ends: 371 [2019-01-12 14:48:14,785 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-12 14:48:14,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2019-01-12 14:48:14,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 150. [2019-01-12 14:48:14,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-01-12 14:48:14,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 209 transitions. [2019-01-12 14:48:14,815 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 209 transitions. Word has length 27 [2019-01-12 14:48:14,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:14,816 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 209 transitions. [2019-01-12 14:48:14,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 14:48:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 209 transitions. [2019-01-12 14:48:14,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-01-12 14:48:14,817 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:14,818 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 14:48:14,818 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:14,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:14,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1892992650, now seen corresponding path program 1 times [2019-01-12 14:48:14,818 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:14,819 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:14,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:14,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:14,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 14:48:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 14:48:15,841 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 14:48:15,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 02:48:15 BoogieIcfgContainer [2019-01-12 14:48:15,957 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 14:48:15,957 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 14:48:15,957 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 14:48:15,958 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 14:48:15,958 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:48:12" (3/4) ... [2019-01-12 14:48:15,961 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-12 14:48:16,053 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 14:48:16,053 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 14:48:16,055 INFO L168 Benchmark]: Toolchain (without parser) took 5818.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.8 MB). Free memory was 952.7 MB in the beginning and 1.2 GB in the end (delta: -208.1 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:16,056 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 14:48:16,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 677.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:16,060 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.82 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:16,062 INFO L168 Benchmark]: Boogie Preprocessor took 49.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 14:48:16,062 INFO L168 Benchmark]: RCFGBuilder took 1268.46 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: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:16,064 INFO L168 Benchmark]: TraceAbstraction took 3648.30 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.1 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -129.2 MB). Peak memory consumption was 256.8 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:16,065 INFO L168 Benchmark]: Witness Printer took 96.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:16,072 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 677.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -153.7 MB). Peak memory consumption was 37.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.82 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1268.46 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: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3648.30 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.1 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -129.2 MB). Peak memory consumption was 256.8 MB. Max. memory is 11.5 GB. * Witness Printer took 96.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L582] int retValue_acc ; [L585] retValue_acc = 1 [L586] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L792] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L794] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L800] tmp = __VERIFIER_nondet_int() [L802] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L867] COND TRUE waterLevel < 2 [L868] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L770] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L777] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L604] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L611] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L163] tmp = isMethaneLevelCritical() [L165] COND FALSE !(\read(tmp)) [L920] int retValue_acc ; [L923] retValue_acc = waterLevel [L924] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L169] tmp___0 = getWaterLevel() [L171] COND TRUE tmp___0 == 2 [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L173] tmp___1 = isPumpRunning() [L175] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L148] __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, 95 locations, 3 error locations. UNSAFE Result, 3.5s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 393 SDtfs, 579 SDslu, 515 SDs, 0 SdLazy, 70 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=150occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 262 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 5373 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...