./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec3_product52_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_product52_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 406c0cc89d56bc86617076fb4c755244f0ec13e7 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 09:43:21,840 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 09:43:21,843 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 09:43:21,860 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 09:43:21,861 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 09:43:21,863 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 09:43:21,864 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 09:43:21,867 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 09:43:21,870 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 09:43:21,871 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 09:43:21,873 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 09:43:21,873 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 09:43:21,874 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 09:43:21,875 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 09:43:21,876 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 09:43:21,877 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 09:43:21,887 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 09:43:21,889 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 09:43:21,893 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 09:43:21,896 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 09:43:21,897 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 09:43:21,899 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 09:43:21,904 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 09:43:21,904 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 09:43:21,904 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 09:43:21,907 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 09:43:21,907 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 09:43:21,909 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 09:43:21,910 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 09:43:21,911 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 09:43:21,911 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 09:43:21,912 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 09:43:21,912 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 09:43:21,912 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 09:43:21,915 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 09:43:21,916 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 09:43:21,916 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 09:43:21,942 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 09:43:21,946 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 09:43:21,947 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 09:43:21,948 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 09:43:21,948 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 09:43:21,948 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 09:43:21,948 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 09:43:21,948 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 09:43:21,948 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 09:43:21,951 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 09:43:21,951 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 09:43:21,952 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 09:43:21,952 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 09:43:21,952 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 09:43:21,952 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 09:43:21,952 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 09:43:21,952 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 09:43:21,953 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 09:43:21,953 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 09:43:21,953 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 09:43:21,953 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 09:43:21,953 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 09:43:21,953 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 09:43:21,953 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 09:43:21,955 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 09:43:21,955 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 09:43:21,955 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 09:43:21,955 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 09:43:21,955 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 -> 406c0cc89d56bc86617076fb4c755244f0ec13e7 [2018-12-31 09:43:22,024 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 09:43:22,037 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 09:43:22,041 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 09:43:22,043 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 09:43:22,043 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 09:43:22,044 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product52_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:22,109 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c1319f2a/9b42e3c10f874527913aa743494973d0/FLAGbb9ddd689 [2018-12-31 09:43:22,652 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 09:43:22,652 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product52_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:22,668 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c1319f2a/9b42e3c10f874527913aa743494973d0/FLAGbb9ddd689 [2018-12-31 09:43:22,953 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c1319f2a/9b42e3c10f874527913aa743494973d0 [2018-12-31 09:43:22,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 09:43:22,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 09:43:22,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 09:43:22,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 09:43:22,963 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 09:43:22,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 09:43:22" (1/1) ... [2018-12-31 09:43:22,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22099427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:22, skipping insertion in model container [2018-12-31 09:43:22,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 09:43:22" (1/1) ... [2018-12-31 09:43:22,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 09:43:23,043 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 09:43:23,440 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 09:43:23,459 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 09:43:23,598 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 09:43:23,731 INFO L195 MainTranslator]: Completed translation [2018-12-31 09:43:23,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23 WrapperNode [2018-12-31 09:43:23,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 09:43:23,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 09:43:23,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 09:43:23,733 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 09:43:23,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 09:43:23,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 09:43:23,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 09:43:23,822 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 09:43:23,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 09:43:23,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 09:43:23,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 09:43:23,877 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 09:43:23,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (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 09:43:23,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 09:43:23,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-31 09:43:23,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 09:43:23,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 09:43:25,493 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 09:43:25,494 INFO L280 CfgBuilder]: Removed 168 assue(true) statements. [2018-12-31 09:43:25,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:25 BoogieIcfgContainer [2018-12-31 09:43:25,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 09:43:25,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 09:43:25,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 09:43:25,499 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 09:43:25,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 09:43:22" (1/3) ... [2018-12-31 09:43:25,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8386ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 09:43:25, skipping insertion in model container [2018-12-31 09:43:25,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (2/3) ... [2018-12-31 09:43:25,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d8386ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 09:43:25, skipping insertion in model container [2018-12-31 09:43:25,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:25" (3/3) ... [2018-12-31 09:43:25,503 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product52_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:25,515 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 09:43:25,525 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-31 09:43:25,545 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-31 09:43:25,580 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 09:43:25,581 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 09:43:25,581 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 09:43:25,581 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 09:43:25,582 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 09:43:25,582 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 09:43:25,582 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 09:43:25,582 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 09:43:25,582 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 09:43:25,604 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2018-12-31 09:43:25,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-31 09:43:25,612 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:25,613 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 09:43:25,616 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:25,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:25,624 INFO L82 PathProgramCache]: Analyzing trace with hash -805334601, now seen corresponding path program 1 times [2018-12-31 09:43:25,626 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:25,627 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:25,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:25,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:25,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:25,948 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 09:43:25,952 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:25,952 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 09:43:25,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 09:43:25,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 09:43:25,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 09:43:25,977 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 2 states. [2018-12-31 09:43:26,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:26,022 INFO L93 Difference]: Finished difference Result 244 states and 371 transitions. [2018-12-31 09:43:26,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 09:43:26,024 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-31 09:43:26,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:26,040 INFO L225 Difference]: With dead ends: 244 [2018-12-31 09:43:26,040 INFO L226 Difference]: Without dead ends: 121 [2018-12-31 09:43:26,044 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 09:43:26,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-12-31 09:43:26,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-12-31 09:43:26,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-12-31 09:43:26,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 177 transitions. [2018-12-31 09:43:26,094 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 177 transitions. Word has length 18 [2018-12-31 09:43:26,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:26,094 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 177 transitions. [2018-12-31 09:43:26,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 09:43:26,095 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 177 transitions. [2018-12-31 09:43:26,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-31 09:43:26,096 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:26,096 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 09:43:26,097 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:26,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:26,097 INFO L82 PathProgramCache]: Analyzing trace with hash -1716365354, now seen corresponding path program 1 times [2018-12-31 09:43:26,097 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:26,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:26,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:26,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:26,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:26,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:26,288 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 09:43:26,288 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:26,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 09:43:26,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:26,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:26,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:26,294 INFO L87 Difference]: Start difference. First operand 121 states and 177 transitions. Second operand 3 states. [2018-12-31 09:43:26,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:26,333 INFO L93 Difference]: Finished difference Result 121 states and 177 transitions. [2018-12-31 09:43:26,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:26,334 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-12-31 09:43:26,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:26,335 INFO L225 Difference]: With dead ends: 121 [2018-12-31 09:43:26,335 INFO L226 Difference]: Without dead ends: 51 [2018-12-31 09:43:26,339 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 09:43:26,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-31 09:43:26,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-12-31 09:43:26,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-31 09:43:26,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2018-12-31 09:43:26,350 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2018-12-31 09:43:26,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:26,350 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2018-12-31 09:43:26,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:26,351 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2018-12-31 09:43:26,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-31 09:43:26,354 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:26,354 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 09:43:26,355 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:26,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:26,355 INFO L82 PathProgramCache]: Analyzing trace with hash -882616339, now seen corresponding path program 1 times [2018-12-31 09:43:26,355 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:26,356 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:26,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:26,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:26,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:26,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:26,509 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 09:43:26,509 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:26,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 09:43:26,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:26,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:26,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:26,510 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 3 states. [2018-12-31 09:43:26,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:26,608 INFO L93 Difference]: Finished difference Result 141 states and 210 transitions. [2018-12-31 09:43:26,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:26,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-12-31 09:43:26,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:26,613 INFO L225 Difference]: With dead ends: 141 [2018-12-31 09:43:26,613 INFO L226 Difference]: Without dead ends: 96 [2018-12-31 09:43:26,614 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 09:43:26,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-12-31 09:43:26,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2018-12-31 09:43:26,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-12-31 09:43:26,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 137 transitions. [2018-12-31 09:43:26,642 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 137 transitions. Word has length 24 [2018-12-31 09:43:26,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:26,642 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 137 transitions. [2018-12-31 09:43:26,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:26,646 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 137 transitions. [2018-12-31 09:43:26,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-31 09:43:26,647 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:26,647 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 09:43:26,648 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:26,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:26,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1572520497, now seen corresponding path program 1 times [2018-12-31 09:43:26,648 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:26,648 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:26,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:26,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:26,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:26,757 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 09:43:26,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:26,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 09:43:26,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:26,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:26,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:26,760 INFO L87 Difference]: Start difference. First operand 92 states and 137 transitions. Second operand 3 states. [2018-12-31 09:43:26,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:26,850 INFO L93 Difference]: Finished difference Result 223 states and 336 transitions. [2018-12-31 09:43:26,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:26,854 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-12-31 09:43:26,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:26,856 INFO L225 Difference]: With dead ends: 223 [2018-12-31 09:43:26,856 INFO L226 Difference]: Without dead ends: 137 [2018-12-31 09:43:26,857 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 09:43:26,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2018-12-31 09:43:26,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2018-12-31 09:43:26,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2018-12-31 09:43:26,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 197 transitions. [2018-12-31 09:43:26,875 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 197 transitions. Word has length 26 [2018-12-31 09:43:26,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:26,876 INFO L480 AbstractCegarLoop]: Abstraction has 135 states and 197 transitions. [2018-12-31 09:43:26,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:26,876 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 197 transitions. [2018-12-31 09:43:26,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-31 09:43:26,878 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:26,878 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 09:43:26,882 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:26,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:26,882 INFO L82 PathProgramCache]: Analyzing trace with hash -1445956926, now seen corresponding path program 1 times [2018-12-31 09:43:26,882 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:26,882 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:26,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:26,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:26,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:27,021 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 09:43:27,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:27,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 09:43:27,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 09:43:27,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 09:43:27,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 09:43:27,023 INFO L87 Difference]: Start difference. First operand 135 states and 197 transitions. Second operand 5 states. [2018-12-31 09:43:27,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:27,774 INFO L93 Difference]: Finished difference Result 707 states and 1049 transitions. [2018-12-31 09:43:27,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-31 09:43:27,775 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-12-31 09:43:27,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:27,780 INFO L225 Difference]: With dead ends: 707 [2018-12-31 09:43:27,780 INFO L226 Difference]: Without dead ends: 578 [2018-12-31 09:43:27,782 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-31 09:43:27,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2018-12-31 09:43:27,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 226. [2018-12-31 09:43:27,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2018-12-31 09:43:27,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 320 transitions. [2018-12-31 09:43:27,819 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 320 transitions. Word has length 27 [2018-12-31 09:43:27,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:27,820 INFO L480 AbstractCegarLoop]: Abstraction has 226 states and 320 transitions. [2018-12-31 09:43:27,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 09:43:27,820 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 320 transitions. [2018-12-31 09:43:27,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-31 09:43:27,822 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:27,823 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 09:43:27,823 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:27,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:27,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1148746628, now seen corresponding path program 1 times [2018-12-31 09:43:27,824 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:27,825 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:27,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:27,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:27,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 09:43:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 09:43:28,609 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 09:43:28,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 09:43:28 BoogieIcfgContainer [2018-12-31 09:43:28,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 09:43:28,754 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 09:43:28,754 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 09:43:28,754 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 09:43:28,756 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:25" (3/4) ... [2018-12-31 09:43:28,759 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 09:43:28,884 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 09:43:28,886 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 09:43:28,888 INFO L168 Benchmark]: Toolchain (without parser) took 5930.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.2 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -230.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 09:43:28,890 INFO L168 Benchmark]: CDTParser took 0.16 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 09:43:28,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:28,893 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:28,894 INFO L168 Benchmark]: Boogie Preprocessor took 54.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:28,894 INFO L168 Benchmark]: RCFGBuilder took 1618.04 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: 59.8 MB). Peak memory consumption was 59.8 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:28,895 INFO L168 Benchmark]: TraceAbstraction took 3258.08 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -139.1 MB). Peak memory consumption was 267.5 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:28,895 INFO L168 Benchmark]: Witness Printer took 132.66 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: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:28,910 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 773.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1618.04 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: 59.8 MB). Peak memory consumption was 59.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3258.08 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 79.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -139.1 MB). Peak memory consumption was 267.5 MB. Max. memory is 11.5 GB. * Witness Printer took 132.66 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: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 853]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L356] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L559] int pumpRunning = 0; [L560] int systemActive = 1; [L896] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L969] int retValue_acc ; [L970] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L887] int retValue_acc ; [L890] retValue_acc = 1 [L891] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L781] int splverifierCounter ; [L782] int tmp ; [L783] int tmp___0 ; [L784] int tmp___1 ; [L785] int tmp___2 ; [L788] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L790] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L792] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L798] tmp = __VERIFIER_nondet_int() [L800] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L102] COND TRUE waterLevel < 2 [L103] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L808] tmp___0 = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L818] tmp___2 = __VERIFIER_nondet_int() [L820] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L759] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L766] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L573] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L673] int retValue_acc ; [L676] retValue_acc = pumpRunning [L677] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L853] __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, 125 locations, 3 error locations. UNSAFE Result, 3.1s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 519 SDtfs, 460 SDslu, 401 SDs, 0 SdLazy, 65 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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, 358 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 4653 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...