./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 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/product-lines/minepump_spec3_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 0.1.24-0ed9222-m [2019-01-12 14:48:17,842 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 14:48:17,844 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 14:48:17,857 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 14:48:17,857 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 14:48:17,858 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 14:48:17,860 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 14:48:17,862 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 14:48:17,864 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 14:48:17,865 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 14:48:17,866 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 14:48:17,867 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 14:48:17,868 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 14:48:17,869 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 14:48:17,870 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 14:48:17,871 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 14:48:17,872 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 14:48:17,875 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 14:48:17,877 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 14:48:17,879 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 14:48:17,880 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 14:48:17,882 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 14:48:17,885 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 14:48:17,885 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 14:48:17,885 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 14:48:17,887 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 14:48:17,888 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 14:48:17,889 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 14:48:17,890 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 14:48:17,891 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 14:48:17,892 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 14:48:17,892 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 14:48:17,893 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 14:48:17,893 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 14:48:17,895 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 14:48:17,895 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 14:48:17,896 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 14:48:17,912 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 14:48:17,912 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 14:48:17,914 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 14:48:17,914 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 14:48:17,914 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 14:48:17,915 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 14:48:17,915 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 14:48:17,915 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 14:48:17,915 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 14:48:17,916 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 14:48:17,917 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 14:48:17,917 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 14:48:17,917 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 14:48:17,917 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 14:48:17,917 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 14:48:17,918 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 14:48:17,918 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 14:48:17,919 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 14:48:17,919 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 14:48:17,919 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 14:48:17,919 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 14:48:17,920 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 14:48:17,920 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 14:48:17,920 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 14:48:17,920 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 14:48:17,920 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 14:48:17,921 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 14:48:17,922 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 14:48:17,922 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 [2019-01-12 14:48:17,960 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 14:48:17,981 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 14:48:17,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 14:48:17,989 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 14:48:17,989 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 14:48:17,991 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product52_false-unreach-call_false-termination.cil.c [2019-01-12 14:48:18,063 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5520be35b/8a123f0d2905459d9355e30ea5283427/FLAG451da5356 [2019-01-12 14:48:18,674 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 14:48:18,675 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product52_false-unreach-call_false-termination.cil.c [2019-01-12 14:48:18,690 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5520be35b/8a123f0d2905459d9355e30ea5283427/FLAG451da5356 [2019-01-12 14:48:18,889 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5520be35b/8a123f0d2905459d9355e30ea5283427 [2019-01-12 14:48:18,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 14:48:18,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 14:48:18,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 14:48:18,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 14:48:18,902 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 14:48:18,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 02:48:18" (1/1) ... [2019-01-12 14:48:18,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d680728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:18, skipping insertion in model container [2019-01-12 14:48:18,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 02:48:18" (1/1) ... [2019-01-12 14:48:18,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 14:48:18,993 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 14:48:19,379 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 14:48:19,406 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 14:48:19,624 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 14:48:19,661 INFO L195 MainTranslator]: Completed translation [2019-01-12 14:48:19,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:19 WrapperNode [2019-01-12 14:48:19,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 14:48:19,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 14:48:19,663 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 14:48:19,663 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 14:48:19,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:19" (1/1) ... [2019-01-12 14:48:19,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:19" (1/1) ... [2019-01-12 14:48:19,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 14:48:19,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 14:48:19,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 14:48:19,758 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 14:48:19,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:19" (1/1) ... [2019-01-12 14:48:19,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:19" (1/1) ... [2019-01-12 14:48:19,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:19" (1/1) ... [2019-01-12 14:48:19,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:19" (1/1) ... [2019-01-12 14:48:19,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:19" (1/1) ... [2019-01-12 14:48:19,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:19" (1/1) ... [2019-01-12 14:48:19,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:19" (1/1) ... [2019-01-12 14:48:19,816 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 14:48:19,817 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 14:48:19,817 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 14:48:19,817 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 14:48:19,818 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 14:48:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 14:48:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-12 14:48:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 14:48:19,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 14:48:21,485 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 14:48:21,485 INFO L286 CfgBuilder]: Removed 168 assue(true) statements. [2019-01-12 14:48:21,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:48:21 BoogieIcfgContainer [2019-01-12 14:48:21,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 14:48:21,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 14:48:21,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 14:48:21,492 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 14:48:21,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 02:48:18" (1/3) ... [2019-01-12 14:48:21,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1c8a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 02:48:21, skipping insertion in model container [2019-01-12 14:48:21,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:19" (2/3) ... [2019-01-12 14:48:21,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1c8a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 02:48:21, skipping insertion in model container [2019-01-12 14:48:21,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:48:21" (3/3) ... [2019-01-12 14:48:21,497 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product52_false-unreach-call_false-termination.cil.c [2019-01-12 14:48:21,508 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 14:48:21,516 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-12 14:48:21,534 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-12 14:48:21,569 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 14:48:21,570 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 14:48:21,570 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 14:48:21,570 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 14:48:21,571 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 14:48:21,571 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 14:48:21,571 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 14:48:21,571 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 14:48:21,572 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 14:48:21,592 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2019-01-12 14:48:21,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-01-12 14:48:21,600 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:21,602 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:48:21,605 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:21,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:21,611 INFO L82 PathProgramCache]: Analyzing trace with hash -805334601, now seen corresponding path program 1 times [2019-01-12 14:48:21,613 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:21,613 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:21,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:21,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:21,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:21,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:48:21,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:21,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 14:48:21,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-12 14:48:21,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-12 14:48:21,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 14:48:21,902 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 2 states. [2019-01-12 14:48:21,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:21,936 INFO L93 Difference]: Finished difference Result 244 states and 371 transitions. [2019-01-12 14:48:21,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-12 14:48:21,938 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-01-12 14:48:21,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:21,952 INFO L225 Difference]: With dead ends: 244 [2019-01-12 14:48:21,952 INFO L226 Difference]: Without dead ends: 121 [2019-01-12 14:48:21,956 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 14:48:21,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-01-12 14:48:22,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-01-12 14:48:22,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-01-12 14:48:22,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 177 transitions. [2019-01-12 14:48:22,010 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 177 transitions. Word has length 18 [2019-01-12 14:48:22,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:22,010 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 177 transitions. [2019-01-12 14:48:22,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-12 14:48:22,011 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 177 transitions. [2019-01-12 14:48:22,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-12 14:48:22,012 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:22,012 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:48:22,013 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:22,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:22,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1716365354, now seen corresponding path program 1 times [2019-01-12 14:48:22,013 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:22,014 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:22,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:22,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:22,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:22,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:22,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:48:22,185 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:22,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 14:48:22,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 14:48:22,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 14:48:22,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:22,191 INFO L87 Difference]: Start difference. First operand 121 states and 177 transitions. Second operand 3 states. [2019-01-12 14:48:22,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:22,220 INFO L93 Difference]: Finished difference Result 121 states and 177 transitions. [2019-01-12 14:48:22,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 14:48:22,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-01-12 14:48:22,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:22,222 INFO L225 Difference]: With dead ends: 121 [2019-01-12 14:48:22,222 INFO L226 Difference]: Without dead ends: 51 [2019-01-12 14:48:22,223 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:22,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2019-01-12 14:48:22,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2019-01-12 14:48:22,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-01-12 14:48:22,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2019-01-12 14:48:22,231 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2019-01-12 14:48:22,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:22,232 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2019-01-12 14:48:22,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 14:48:22,232 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2019-01-12 14:48:22,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-01-12 14:48:22,233 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:22,233 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:48:22,233 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:22,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:22,234 INFO L82 PathProgramCache]: Analyzing trace with hash -882616339, now seen corresponding path program 1 times [2019-01-12 14:48:22,234 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:22,234 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:22,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:22,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:22,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:22,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:48:22,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:22,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 14:48:22,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 14:48:22,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 14:48:22,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:22,409 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 3 states. [2019-01-12 14:48:22,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:22,475 INFO L93 Difference]: Finished difference Result 141 states and 210 transitions. [2019-01-12 14:48:22,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 14:48:22,477 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2019-01-12 14:48:22,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:22,478 INFO L225 Difference]: With dead ends: 141 [2019-01-12 14:48:22,479 INFO L226 Difference]: Without dead ends: 96 [2019-01-12 14:48:22,479 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:22,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-01-12 14:48:22,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 92. [2019-01-12 14:48:22,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-01-12 14:48:22,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 137 transitions. [2019-01-12 14:48:22,497 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 137 transitions. Word has length 24 [2019-01-12 14:48:22,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:22,497 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 137 transitions. [2019-01-12 14:48:22,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 14:48:22,497 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 137 transitions. [2019-01-12 14:48:22,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-01-12 14:48:22,499 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:22,499 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:48:22,499 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:22,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:22,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1572520497, now seen corresponding path program 1 times [2019-01-12 14:48:22,500 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:22,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:22,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:22,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:22,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:22,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:48:22,647 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:22,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 14:48:22,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 14:48:22,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 14:48:22,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:22,651 INFO L87 Difference]: Start difference. First operand 92 states and 137 transitions. Second operand 3 states. [2019-01-12 14:48:22,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:22,808 INFO L93 Difference]: Finished difference Result 223 states and 336 transitions. [2019-01-12 14:48:22,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 14:48:22,809 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-01-12 14:48:22,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:22,811 INFO L225 Difference]: With dead ends: 223 [2019-01-12 14:48:22,811 INFO L226 Difference]: Without dead ends: 137 [2019-01-12 14:48:22,812 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:22,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-01-12 14:48:22,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2019-01-12 14:48:22,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-01-12 14:48:22,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 197 transitions. [2019-01-12 14:48:22,838 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 197 transitions. Word has length 26 [2019-01-12 14:48:22,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:22,838 INFO L480 AbstractCegarLoop]: Abstraction has 135 states and 197 transitions. [2019-01-12 14:48:22,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 14:48:22,839 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 197 transitions. [2019-01-12 14:48:22,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-01-12 14:48:22,840 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:22,840 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:48:22,840 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:22,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:22,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1445956926, now seen corresponding path program 1 times [2019-01-12 14:48:22,841 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:22,841 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:22,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:22,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:22,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:22,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:48:22,996 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:22,996 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-12 14:48:22,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 14:48:22,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 14:48:22,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-12 14:48:22,997 INFO L87 Difference]: Start difference. First operand 135 states and 197 transitions. Second operand 5 states. [2019-01-12 14:48:23,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:23,570 INFO L93 Difference]: Finished difference Result 707 states and 1049 transitions. [2019-01-12 14:48:23,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-12 14:48:23,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-01-12 14:48:23,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:23,575 INFO L225 Difference]: With dead ends: 707 [2019-01-12 14:48:23,575 INFO L226 Difference]: Without dead ends: 578 [2019-01-12 14:48:23,581 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 [2019-01-12 14:48:23,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2019-01-12 14:48:23,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 226. [2019-01-12 14:48:23,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2019-01-12 14:48:23,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 320 transitions. [2019-01-12 14:48:23,642 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 320 transitions. Word has length 27 [2019-01-12 14:48:23,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:23,642 INFO L480 AbstractCegarLoop]: Abstraction has 226 states and 320 transitions. [2019-01-12 14:48:23,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 14:48:23,645 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 320 transitions. [2019-01-12 14:48:23,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-01-12 14:48:23,647 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:23,647 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, 1, 1] [2019-01-12 14:48:23,647 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:23,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:23,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1148746628, now seen corresponding path program 1 times [2019-01-12 14:48:23,650 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:23,650 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:23,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:23,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:23,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 14:48:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 14:48:24,530 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 14:48:24,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 02:48:24 BoogieIcfgContainer [2019-01-12 14:48:24,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 14:48:24,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 14:48:24,664 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 14:48:24,664 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 14:48:24,664 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:48:21" (3/4) ... [2019-01-12 14:48:24,668 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-12 14:48:24,810 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 14:48:24,810 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 14:48:24,812 INFO L168 Benchmark]: Toolchain (without parser) took 5917.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 213.9 MB). Free memory was 954.0 MB in the beginning and 1.2 GB in the end (delta: -216.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 14:48:24,815 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 14:48:24,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -162.4 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:24,816 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 14:48:24,816 INFO L168 Benchmark]: Boogie Preprocessor took 58.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:24,818 INFO L168 Benchmark]: RCFGBuilder took 1670.66 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: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:24,819 INFO L168 Benchmark]: TraceAbstraction took 3174.81 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -142.1 MB). Peak memory consumption was 250.5 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:24,819 INFO L168 Benchmark]: Witness Printer took 147.20 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. [2019-01-12 14:48:24,824 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 765.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -162.4 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 94.62 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 58.40 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 1670.66 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: 65.5 MB). Peak memory consumption was 65.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3174.81 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -142.1 MB). Peak memory consumption was 250.5 MB. Max. memory is 11.5 GB. * Witness Printer took 147.20 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: 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, 3.0s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 519 SDtfs, 460 SDslu, 401 SDs, 0 SdLazy, 65 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s 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...