./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec3_product59_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_product59_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 fb1767f688fc9701e1f3b125f3120ace113b61a7 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 14:48:22,224 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 14:48:22,226 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 14:48:22,239 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 14:48:22,239 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 14:48:22,240 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 14:48:22,242 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 14:48:22,244 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 14:48:22,246 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 14:48:22,247 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 14:48:22,248 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 14:48:22,249 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 14:48:22,250 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 14:48:22,251 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 14:48:22,252 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 14:48:22,253 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 14:48:22,255 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 14:48:22,257 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 14:48:22,259 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 14:48:22,261 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 14:48:22,263 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 14:48:22,264 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 14:48:22,267 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 14:48:22,268 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 14:48:22,268 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 14:48:22,270 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 14:48:22,271 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 14:48:22,272 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 14:48:22,273 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 14:48:22,274 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 14:48:22,275 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 14:48:22,276 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 14:48:22,276 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 14:48:22,277 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 14:48:22,278 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 14:48:22,279 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 14:48:22,280 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 14:48:22,296 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 14:48:22,296 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 14:48:22,297 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 14:48:22,298 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 14:48:22,298 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 14:48:22,298 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 14:48:22,298 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 14:48:22,298 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 14:48:22,299 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 14:48:22,300 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 14:48:22,300 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 14:48:22,300 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 14:48:22,300 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 14:48:22,300 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 14:48:22,300 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 14:48:22,301 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 14:48:22,301 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 14:48:22,302 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 14:48:22,302 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 14:48:22,302 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 14:48:22,302 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 14:48:22,302 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 14:48:22,303 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 14:48:22,303 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 14:48:22,303 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 14:48:22,303 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 14:48:22,303 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 14:48:22,303 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 14:48:22,305 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 -> fb1767f688fc9701e1f3b125f3120ace113b61a7 [2019-01-12 14:48:22,345 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 14:48:22,368 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 14:48:22,375 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 14:48:22,376 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 14:48:22,376 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 14:48:22,377 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product59_false-unreach-call_false-termination.cil.c [2019-01-12 14:48:22,446 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b118aa803/be1a9f9af5ba40a5887c71628666d715/FLAG1dcabfac7 [2019-01-12 14:48:22,985 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 14:48:22,986 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product59_false-unreach-call_false-termination.cil.c [2019-01-12 14:48:23,013 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b118aa803/be1a9f9af5ba40a5887c71628666d715/FLAG1dcabfac7 [2019-01-12 14:48:23,246 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b118aa803/be1a9f9af5ba40a5887c71628666d715 [2019-01-12 14:48:23,249 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 14:48:23,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 14:48:23,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 14:48:23,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 14:48:23,256 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 14:48:23,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 02:48:23" (1/1) ... [2019-01-12 14:48:23,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc2e1f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:23, skipping insertion in model container [2019-01-12 14:48:23,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 02:48:23" (1/1) ... [2019-01-12 14:48:23,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 14:48:23,330 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 14:48:23,788 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 14:48:23,804 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 14:48:23,968 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 14:48:24,019 INFO L195 MainTranslator]: Completed translation [2019-01-12 14:48:24,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:24 WrapperNode [2019-01-12 14:48:24,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 14:48:24,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 14:48:24,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 14:48:24,021 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 14:48:24,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:24" (1/1) ... [2019-01-12 14:48:24,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:24" (1/1) ... [2019-01-12 14:48:24,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 14:48:24,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 14:48:24,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 14:48:24,149 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 14:48:24,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:24" (1/1) ... [2019-01-12 14:48:24,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:24" (1/1) ... [2019-01-12 14:48:24,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:24" (1/1) ... [2019-01-12 14:48:24,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:24" (1/1) ... [2019-01-12 14:48:24,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:24" (1/1) ... [2019-01-12 14:48:24,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:24" (1/1) ... [2019-01-12 14:48:24,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:24" (1/1) ... [2019-01-12 14:48:24,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 14:48:24,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 14:48:24,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 14:48:24,200 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 14:48:24,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:24" (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 14:48:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 14:48:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-12 14:48:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 14:48:24,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 14:48:26,000 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 14:48:26,001 INFO L286 CfgBuilder]: Removed 202 assue(true) statements. [2019-01-12 14:48:26,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:48:26 BoogieIcfgContainer [2019-01-12 14:48:26,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 14:48:26,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 14:48:26,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 14:48:26,006 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 14:48:26,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 02:48:23" (1/3) ... [2019-01-12 14:48:26,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea88c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 02:48:26, skipping insertion in model container [2019-01-12 14:48:26,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:24" (2/3) ... [2019-01-12 14:48:26,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ea88c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 02:48:26, skipping insertion in model container [2019-01-12 14:48:26,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:48:26" (3/3) ... [2019-01-12 14:48:26,010 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59_false-unreach-call_false-termination.cil.c [2019-01-12 14:48:26,020 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 14:48:26,030 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-12 14:48:26,047 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-12 14:48:26,079 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 14:48:26,080 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 14:48:26,080 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 14:48:26,080 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 14:48:26,081 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 14:48:26,081 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 14:48:26,081 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 14:48:26,081 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 14:48:26,081 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 14:48:26,102 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states. [2019-01-12 14:48:26,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-01-12 14:48:26,109 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:26,110 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 14:48:26,112 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:26,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:26,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1718080062, now seen corresponding path program 1 times [2019-01-12 14:48:26,121 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:26,121 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:26,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:26,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:26,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:26,398 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 14:48:26,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:26,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 14:48:26,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-12 14:48:26,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-12 14:48:26,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 14:48:26,419 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 2 states. [2019-01-12 14:48:26,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:26,457 INFO L93 Difference]: Finished difference Result 280 states and 419 transitions. [2019-01-12 14:48:26,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-12 14:48:26,458 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-01-12 14:48:26,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:26,474 INFO L225 Difference]: With dead ends: 280 [2019-01-12 14:48:26,477 INFO L226 Difference]: Without dead ends: 139 [2019-01-12 14:48:26,482 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 14:48:26,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-01-12 14:48:26,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2019-01-12 14:48:26,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2019-01-12 14:48:26,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2019-01-12 14:48:26,543 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18 [2019-01-12 14:48:26,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:26,544 INFO L480 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2019-01-12 14:48:26,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-12 14:48:26,544 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2019-01-12 14:48:26,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-12 14:48:26,546 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:26,546 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 14:48:26,547 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:26,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:26,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1665856481, now seen corresponding path program 1 times [2019-01-12 14:48:26,547 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:26,547 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:26,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:26,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:26,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:26,682 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 14:48:26,683 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:26,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 14:48:26,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 14:48:26,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 14:48:26,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:26,686 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand 3 states. [2019-01-12 14:48:26,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:26,717 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2019-01-12 14:48:26,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 14:48:26,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-01-12 14:48:26,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:26,721 INFO L225 Difference]: With dead ends: 139 [2019-01-12 14:48:26,722 INFO L226 Difference]: Without dead ends: 57 [2019-01-12 14:48:26,725 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 14:48:26,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-01-12 14:48:26,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-01-12 14:48:26,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-01-12 14:48:26,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2019-01-12 14:48:26,742 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2019-01-12 14:48:26,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:26,743 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2019-01-12 14:48:26,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 14:48:26,743 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2019-01-12 14:48:26,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-01-12 14:48:26,744 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:26,744 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 14:48:26,745 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:26,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:26,745 INFO L82 PathProgramCache]: Analyzing trace with hash 35331171, now seen corresponding path program 1 times [2019-01-12 14:48:26,745 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:26,749 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:26,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:26,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:26,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:26,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:27,062 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 14:48:27,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:27,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-12 14:48:27,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-12 14:48:27,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-12 14:48:27,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-01-12 14:48:27,064 INFO L87 Difference]: Start difference. First operand 57 states and 82 transitions. Second operand 6 states. [2019-01-12 14:48:27,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:27,361 INFO L93 Difference]: Finished difference Result 184 states and 271 transitions. [2019-01-12 14:48:27,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-12 14:48:27,363 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-01-12 14:48:27,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:27,365 INFO L225 Difference]: With dead ends: 184 [2019-01-12 14:48:27,365 INFO L226 Difference]: Without dead ends: 133 [2019-01-12 14:48:27,366 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 14:48:27,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-01-12 14:48:27,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 78. [2019-01-12 14:48:27,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-01-12 14:48:27,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2019-01-12 14:48:27,382 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 24 [2019-01-12 14:48:27,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:27,382 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2019-01-12 14:48:27,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-12 14:48:27,384 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2019-01-12 14:48:27,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-01-12 14:48:27,385 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:27,385 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] [2019-01-12 14:48:27,386 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:27,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:27,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1148352902, now seen corresponding path program 1 times [2019-01-12 14:48:27,386 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:27,387 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:27,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:27,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:27,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:27,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:27,467 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 14:48:27,468 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:27,468 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 14:48:27,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 14:48:27,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 14:48:27,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:27,470 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand 3 states. [2019-01-12 14:48:27,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:27,664 INFO L93 Difference]: Finished difference Result 173 states and 255 transitions. [2019-01-12 14:48:27,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 14:48:27,665 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-01-12 14:48:27,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:27,666 INFO L225 Difference]: With dead ends: 173 [2019-01-12 14:48:27,667 INFO L226 Difference]: Without dead ends: 101 [2019-01-12 14:48:27,668 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 14:48:27,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-01-12 14:48:27,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2019-01-12 14:48:27,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-01-12 14:48:27,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2019-01-12 14:48:27,682 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 26 [2019-01-12 14:48:27,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:27,683 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2019-01-12 14:48:27,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 14:48:27,683 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2019-01-12 14:48:27,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-01-12 14:48:27,684 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:27,684 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 14:48:27,685 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:27,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:27,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1938820856, now seen corresponding path program 1 times [2019-01-12 14:48:27,685 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:27,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:27,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:27,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:27,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:27,992 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 14:48:27,993 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:27,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-12 14:48:27,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 14:48:27,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 14:48:27,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-12 14:48:27,997 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand 5 states. [2019-01-12 14:48:28,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:28,856 INFO L93 Difference]: Finished difference Result 515 states and 751 transitions. [2019-01-12 14:48:28,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-12 14:48:28,857 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-01-12 14:48:28,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:28,860 INFO L225 Difference]: With dead ends: 515 [2019-01-12 14:48:28,861 INFO L226 Difference]: Without dead ends: 422 [2019-01-12 14:48:28,862 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-12 14:48:28,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2019-01-12 14:48:28,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 167. [2019-01-12 14:48:28,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-01-12 14:48:28,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 233 transitions. [2019-01-12 14:48:28,893 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 233 transitions. Word has length 27 [2019-01-12 14:48:28,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:28,893 INFO L480 AbstractCegarLoop]: Abstraction has 167 states and 233 transitions. [2019-01-12 14:48:28,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 14:48:28,894 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 233 transitions. [2019-01-12 14:48:28,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-01-12 14:48:28,895 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:28,895 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 14:48:28,896 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:28,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:28,896 INFO L82 PathProgramCache]: Analyzing trace with hash 238557114, now seen corresponding path program 1 times [2019-01-12 14:48:28,896 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:28,896 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:28,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:28,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:28,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 14:48:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 14:48:29,570 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 14:48:29,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 02:48:29 BoogieIcfgContainer [2019-01-12 14:48:29,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 14:48:29,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 14:48:29,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 14:48:29,677 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 14:48:29,678 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:48:26" (3/4) ... [2019-01-12 14:48:29,681 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-12 14:48:29,846 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 14:48:29,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 14:48:29,847 INFO L168 Benchmark]: Toolchain (without parser) took 6596.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 216.5 MB). Free memory was 948.7 MB in the beginning and 1.2 GB in the end (delta: -249.5 MB). Peak memory consumption was 289.2 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:29,849 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 14:48:29,850 INFO L168 Benchmark]: CACSL2BoogieTranslator took 768.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:29,850 INFO L168 Benchmark]: Boogie Procedure Inliner took 127.08 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 14:48:29,851 INFO L168 Benchmark]: Boogie Preprocessor took 50.99 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 14:48:29,851 INFO L168 Benchmark]: RCFGBuilder took 1802.53 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: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:29,852 INFO L168 Benchmark]: TraceAbstraction took 3673.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 819.2 MB in the end (delta: 226.7 MB). Peak memory consumption was 226.7 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:29,854 INFO L168 Benchmark]: Witness Printer took 168.90 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 819.2 MB in the beginning and 1.2 GB in the end (delta: -378.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:29,859 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 768.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 127.08 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. * Boogie Preprocessor took 50.99 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. * RCFGBuilder took 1802.53 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: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3673.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 819.2 MB in the end (delta: 226.7 MB). Peak memory consumption was 226.7 MB. Max. memory is 11.5 GB. * Witness Printer took 168.90 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 819.2 MB in the beginning and 1.2 GB in the end (delta: -378.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 694]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L414] int waterLevel = 1; [L415] int methaneLevelCritical = 0; [L517] int cleanupTimeShifts = 4; [L769] int pumpRunning = 0; [L770] int systemActive = 1; [L596] int retValue_acc ; [L597] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L645] int retValue_acc ; [L648] retValue_acc = 1 [L649] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L603] tmp = valid_product() [L605] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L701] int splverifierCounter ; [L702] int tmp ; [L703] int tmp___0 ; [L704] int tmp___1 ; [L705] int tmp___2 ; [L708] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L710] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L712] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L718] tmp = __VERIFIER_nondet_int() [L720] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] COND TRUE waterLevel < 2 [L433] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L728] tmp___0 = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] tmp___2 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___2)) [L744] tmp___1 = __VERIFIER_nondet_int() [L746] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L987] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L994] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L776] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L783] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L657] int tmp ; [L658] int tmp___0 ; [L659] int tmp___1 ; [L453] int retValue_acc ; [L456] retValue_acc = methaneLevelCritical [L457] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L663] tmp = isMethaneLevelCritical() [L665] COND FALSE !(\read(tmp)) [L485] int retValue_acc ; [L488] retValue_acc = waterLevel [L489] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L669] tmp___0 = getWaterLevel() [L671] COND TRUE tmp___0 == 2 [L901] int retValue_acc ; [L904] retValue_acc = pumpRunning [L905] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L673] tmp___1 = isPumpRunning() [L675] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L694] __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, 143 locations, 3 error locations. UNSAFE Result, 3.6s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 581 SDtfs, 743 SDslu, 733 SDs, 0 SdLazy, 81 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s 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=167occurred 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, 312 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5504 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...