./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec3_product39_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/product-lines/minepump_spec3_product39_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 fda6d17e7962e4df44156ef592d697d85d9dd989 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 09:43:11,930 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 09:43:11,932 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 09:43:11,946 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 09:43:11,946 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 09:43:11,947 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 09:43:11,949 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 09:43:11,951 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 09:43:11,953 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 09:43:11,954 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 09:43:11,956 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 09:43:11,956 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 09:43:11,957 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 09:43:11,958 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 09:43:11,960 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 09:43:11,961 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 09:43:11,962 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 09:43:11,964 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 09:43:11,967 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 09:43:11,968 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 09:43:11,970 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 09:43:11,971 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 09:43:11,974 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 09:43:11,974 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 09:43:11,975 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 09:43:11,976 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 09:43:11,978 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 09:43:11,979 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 09:43:11,980 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 09:43:11,981 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 09:43:11,981 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 09:43:11,983 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 09:43:11,983 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 09:43:11,983 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 09:43:11,985 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 09:43:11,985 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 09:43:11,986 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 09:43:12,009 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 09:43:12,010 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 09:43:12,012 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 09:43:12,012 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 09:43:12,012 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 09:43:12,012 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 09:43:12,012 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 09:43:12,014 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 09:43:12,015 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 09:43:12,015 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 09:43:12,015 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 09:43:12,015 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 09:43:12,015 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 09:43:12,015 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 09:43:12,016 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 09:43:12,017 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 09:43:12,017 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 09:43:12,017 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 09:43:12,017 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 09:43:12,017 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 09:43:12,017 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 09:43:12,020 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 09:43:12,020 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 09:43:12,020 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 09:43:12,020 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 09:43:12,020 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 09:43:12,021 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 09:43:12,021 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 09:43:12,022 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 -> fda6d17e7962e4df44156ef592d697d85d9dd989 [2018-12-31 09:43:12,090 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 09:43:12,109 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 09:43:12,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 09:43:12,115 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 09:43:12,115 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 09:43:12,116 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product39_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:12,174 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6720f9057/67a2397852d346bab2f2da0fde472372/FLAGbb992dbe7 [2018-12-31 09:43:12,733 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 09:43:12,734 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product39_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:12,751 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6720f9057/67a2397852d346bab2f2da0fde472372/FLAGbb992dbe7 [2018-12-31 09:43:13,003 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6720f9057/67a2397852d346bab2f2da0fde472372 [2018-12-31 09:43:13,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 09:43:13,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 09:43:13,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 09:43:13,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 09:43:13,014 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 09:43:13,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 09:43:13" (1/1) ... [2018-12-31 09:43:13,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59cb658d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:13, skipping insertion in model container [2018-12-31 09:43:13,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 09:43:13" (1/1) ... [2018-12-31 09:43:13,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 09:43:13,085 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 09:43:13,546 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 09:43:13,563 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 09:43:13,733 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 09:43:13,771 INFO L195 MainTranslator]: Completed translation [2018-12-31 09:43:13,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:13 WrapperNode [2018-12-31 09:43:13,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 09:43:13,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 09:43:13,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 09:43:13,773 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 09:43:13,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:13" (1/1) ... [2018-12-31 09:43:13,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:13" (1/1) ... [2018-12-31 09:43:13,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 09:43:13,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 09:43:13,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 09:43:13,858 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 09:43:13,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:13" (1/1) ... [2018-12-31 09:43:13,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:13" (1/1) ... [2018-12-31 09:43:13,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:13" (1/1) ... [2018-12-31 09:43:13,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:13" (1/1) ... [2018-12-31 09:43:13,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:13" (1/1) ... [2018-12-31 09:43:13,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:13" (1/1) ... [2018-12-31 09:43:13,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:13" (1/1) ... [2018-12-31 09:43:13,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 09:43:13,933 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 09:43:13,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 09:43:13,933 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 09:43:13,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 09:43:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 09:43:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-31 09:43:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 09:43:13,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 09:43:15,444 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 09:43:15,444 INFO L280 CfgBuilder]: Removed 166 assue(true) statements. [2018-12-31 09:43:15,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:15 BoogieIcfgContainer [2018-12-31 09:43:15,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 09:43:15,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 09:43:15,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 09:43:15,450 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 09:43:15,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 09:43:13" (1/3) ... [2018-12-31 09:43:15,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501cc509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 09:43:15, skipping insertion in model container [2018-12-31 09:43:15,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:13" (2/3) ... [2018-12-31 09:43:15,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501cc509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 09:43:15, skipping insertion in model container [2018-12-31 09:43:15,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:15" (3/3) ... [2018-12-31 09:43:15,457 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product39_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:15,468 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 09:43:15,478 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-31 09:43:15,497 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-31 09:43:15,530 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 09:43:15,531 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 09:43:15,531 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 09:43:15,531 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 09:43:15,531 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 09:43:15,532 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 09:43:15,532 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 09:43:15,532 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 09:43:15,532 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 09:43:15,552 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2018-12-31 09:43:15,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-31 09:43:15,561 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:15,562 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 09:43:15,564 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:15,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:15,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1240734729, now seen corresponding path program 1 times [2018-12-31 09:43:15,573 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:15,574 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:15,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:15,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:15,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:15,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 09:43:15,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:15,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 09:43:15,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 09:43:15,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 09:43:15,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 09:43:15,894 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2018-12-31 09:43:15,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:15,938 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2018-12-31 09:43:15,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 09:43:15,940 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-31 09:43:15,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:15,957 INFO L225 Difference]: With dead ends: 232 [2018-12-31 09:43:15,958 INFO L226 Difference]: Without dead ends: 115 [2018-12-31 09:43:15,961 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 [2018-12-31 09:43:15,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-12-31 09:43:16,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-12-31 09:43:16,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-12-31 09:43:16,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2018-12-31 09:43:16,017 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 18 [2018-12-31 09:43:16,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:16,018 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2018-12-31 09:43:16,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 09:43:16,019 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2018-12-31 09:43:16,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-31 09:43:16,022 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:16,023 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 09:43:16,023 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:16,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:16,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1444708423, now seen corresponding path program 1 times [2018-12-31 09:43:16,024 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:16,024 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:16,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:16,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:16,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:16,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:16,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 09:43:16,201 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:16,201 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 09:43:16,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:16,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:16,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:16,205 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2018-12-31 09:43:16,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:16,235 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2018-12-31 09:43:16,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:16,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-12-31 09:43:16,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:16,237 INFO L225 Difference]: With dead ends: 115 [2018-12-31 09:43:16,237 INFO L226 Difference]: Without dead ends: 49 [2018-12-31 09:43:16,239 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:16,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-12-31 09:43:16,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-12-31 09:43:16,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-12-31 09:43:16,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2018-12-31 09:43:16,246 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2018-12-31 09:43:16,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:16,246 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2018-12-31 09:43:16,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:16,247 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2018-12-31 09:43:16,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-31 09:43:16,248 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:16,248 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] [2018-12-31 09:43:16,248 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:16,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:16,249 INFO L82 PathProgramCache]: Analyzing trace with hash 1084287686, now seen corresponding path program 1 times [2018-12-31 09:43:16,249 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:16,249 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:16,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:16,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:16,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:16,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 09:43:16,369 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:16,369 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 09:43:16,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:16,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:16,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:16,370 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 3 states. [2018-12-31 09:43:16,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:16,427 INFO L93 Difference]: Finished difference Result 135 states and 201 transitions. [2018-12-31 09:43:16,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:16,431 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-12-31 09:43:16,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:16,432 INFO L225 Difference]: With dead ends: 135 [2018-12-31 09:43:16,433 INFO L226 Difference]: Without dead ends: 92 [2018-12-31 09:43:16,433 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 [2018-12-31 09:43:16,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-12-31 09:43:16,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2018-12-31 09:43:16,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-12-31 09:43:16,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 131 transitions. [2018-12-31 09:43:16,454 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 131 transitions. Word has length 24 [2018-12-31 09:43:16,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:16,459 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 131 transitions. [2018-12-31 09:43:16,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:16,459 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 131 transitions. [2018-12-31 09:43:16,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-31 09:43:16,461 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:16,461 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] [2018-12-31 09:43:16,461 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:16,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:16,463 INFO L82 PathProgramCache]: Analyzing trace with hash -857120593, now seen corresponding path program 1 times [2018-12-31 09:43:16,463 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:16,463 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:16,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:16,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:16,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:16,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 09:43:16,537 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:16,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 09:43:16,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:16,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:16,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:16,539 INFO L87 Difference]: Start difference. First operand 88 states and 131 transitions. Second operand 3 states. [2018-12-31 09:43:16,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:16,633 INFO L93 Difference]: Finished difference Result 215 states and 324 transitions. [2018-12-31 09:43:16,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:16,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-12-31 09:43:16,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:16,638 INFO L225 Difference]: With dead ends: 215 [2018-12-31 09:43:16,639 INFO L226 Difference]: Without dead ends: 133 [2018-12-31 09:43:16,639 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 [2018-12-31 09:43:16,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-12-31 09:43:16,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2018-12-31 09:43:16,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-12-31 09:43:16,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 191 transitions. [2018-12-31 09:43:16,677 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 191 transitions. Word has length 26 [2018-12-31 09:43:16,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:16,678 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 191 transitions. [2018-12-31 09:43:16,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:16,678 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 191 transitions. [2018-12-31 09:43:16,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-31 09:43:16,681 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:16,681 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] [2018-12-31 09:43:16,682 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:16,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:16,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1307189925, now seen corresponding path program 1 times [2018-12-31 09:43:16,682 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:16,682 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:16,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:16,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:16,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:16,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 09:43:16,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:16,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 09:43:16,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 09:43:16,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 09:43:16,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 09:43:16,862 INFO L87 Difference]: Start difference. First operand 131 states and 191 transitions. Second operand 5 states. [2018-12-31 09:43:17,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:17,150 INFO L93 Difference]: Finished difference Result 691 states and 1025 transitions. [2018-12-31 09:43:17,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-31 09:43:17,150 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-12-31 09:43:17,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:17,155 INFO L225 Difference]: With dead ends: 691 [2018-12-31 09:43:17,155 INFO L226 Difference]: Without dead ends: 566 [2018-12-31 09:43:17,156 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-31 09:43:17,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2018-12-31 09:43:17,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 222. [2018-12-31 09:43:17,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-12-31 09:43:17,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 314 transitions. [2018-12-31 09:43:17,195 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 314 transitions. Word has length 27 [2018-12-31 09:43:17,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:17,195 INFO L480 AbstractCegarLoop]: Abstraction has 222 states and 314 transitions. [2018-12-31 09:43:17,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 09:43:17,195 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 314 transitions. [2018-12-31 09:43:17,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-31 09:43:17,197 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:17,197 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] [2018-12-31 09:43:17,198 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:17,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:17,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1287513629, now seen corresponding path program 1 times [2018-12-31 09:43:17,198 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:17,198 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:17,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:17,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:17,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 09:43:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 09:43:18,207 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 09:43:18,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 09:43:18 BoogieIcfgContainer [2018-12-31 09:43:18,318 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 09:43:18,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 09:43:18,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 09:43:18,318 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 09:43:18,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:15" (3/4) ... [2018-12-31 09:43:18,326 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 09:43:18,450 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 09:43:18,451 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 09:43:18,452 INFO L168 Benchmark]: Toolchain (without parser) took 5443.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.7 MB). Free memory was 947.3 MB in the beginning and 1.2 GB in the end (delta: -221.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 09:43:18,453 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-12-31 09:43:18,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 762.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:18,454 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.33 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. [2018-12-31 09:43:18,459 INFO L168 Benchmark]: Boogie Preprocessor took 74.81 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. [2018-12-31 09:43:18,460 INFO L168 Benchmark]: RCFGBuilder took 1512.27 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: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:18,460 INFO L168 Benchmark]: TraceAbstraction took 2871.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -134.8 MB). Peak memory consumption was 251.9 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:18,461 INFO L168 Benchmark]: Witness Printer took 132.58 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: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:18,465 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 762.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 84.33 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 74.81 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 1512.27 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: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2871.31 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -134.8 MB). Peak memory consumption was 251.9 MB. Max. memory is 11.5 GB. * Witness Printer took 132.58 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: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 451]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L185] int pumpRunning = 0; [L186] int systemActive = 1; [L625] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L895] int retValue_acc ; [L896] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] tmp = valid_product() [L904] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L381] int splverifierCounter ; [L382] int tmp ; [L383] int tmp___0 ; [L384] int tmp___1 ; [L385] int tmp___2 ; [L388] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L390] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L392] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L398] tmp = __VERIFIER_nondet_int() [L400] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L408] tmp___0 = __VERIFIER_nondet_int() [L410] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L418] tmp___2 = __VERIFIER_nondet_int() [L420] COND FALSE !(\read(tmp___2)) [L424] tmp___1 = __VERIFIER_nondet_int() [L426] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L367] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L374] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L193] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L200] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L919] int tmp ; [L920] int tmp___0 ; [L921] int tmp___1 ; [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L925] tmp = isMethaneLevelCritical() [L927] COND FALSE !(\read(tmp)) [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L931] tmp___0 = getWaterLevel() [L933] COND TRUE tmp___0 == 2 [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L935] tmp___1 = isPumpRunning() [L937] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L451] __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, 119 locations, 3 error locations. UNSAFE Result, 2.7s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 495 SDtfs, 433 SDslu, 383 SDs, 0 SdLazy, 63 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred 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, 350 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5251 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...