./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec3_product40_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_product40_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 6b0dd49774129de8b6944c8beb9911dd98f5e936 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 14:48:08,654 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 14:48:08,656 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 14:48:08,671 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 14:48:08,671 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 14:48:08,674 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 14:48:08,675 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 14:48:08,677 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 14:48:08,679 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 14:48:08,680 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 14:48:08,681 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 14:48:08,682 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 14:48:08,683 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 14:48:08,684 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 14:48:08,685 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 14:48:08,686 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 14:48:08,687 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 14:48:08,689 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 14:48:08,692 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 14:48:08,694 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 14:48:08,695 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 14:48:08,696 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 14:48:08,699 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 14:48:08,700 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 14:48:08,700 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 14:48:08,701 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 14:48:08,702 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 14:48:08,703 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 14:48:08,704 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 14:48:08,705 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 14:48:08,706 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 14:48:08,706 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 14:48:08,707 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 14:48:08,707 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 14:48:08,708 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 14:48:08,709 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 14:48:08,709 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 14:48:08,725 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 14:48:08,725 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 14:48:08,726 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 14:48:08,726 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 14:48:08,726 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 14:48:08,727 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 14:48:08,728 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 14:48:08,728 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 14:48:08,728 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 14:48:08,728 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 14:48:08,728 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 14:48:08,728 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 14:48:08,729 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 14:48:08,729 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 14:48:08,729 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 14:48:08,729 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 14:48:08,729 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 14:48:08,729 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 14:48:08,731 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 14:48:08,731 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 14:48:08,731 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 14:48:08,732 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 14:48:08,732 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 14:48:08,732 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 14:48:08,732 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 14:48:08,733 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 14:48:08,733 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 14:48:08,733 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 14:48:08,733 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 -> 6b0dd49774129de8b6944c8beb9911dd98f5e936 [2019-01-12 14:48:08,779 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 14:48:08,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 14:48:08,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 14:48:08,800 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 14:48:08,801 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 14:48:08,802 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product40_false-unreach-call_false-termination.cil.c [2019-01-12 14:48:08,864 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c66d9e8c/1b930dd19a7a441f9c70220eadfdb3eb/FLAG5bb09286d [2019-01-12 14:48:09,448 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 14:48:09,449 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product40_false-unreach-call_false-termination.cil.c [2019-01-12 14:48:09,473 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c66d9e8c/1b930dd19a7a441f9c70220eadfdb3eb/FLAG5bb09286d [2019-01-12 14:48:09,745 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c66d9e8c/1b930dd19a7a441f9c70220eadfdb3eb [2019-01-12 14:48:09,751 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 14:48:09,753 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 14:48:09,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 14:48:09,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 14:48:09,766 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 14:48:09,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 02:48:09" (1/1) ... [2019-01-12 14:48:09,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c50214e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:09, skipping insertion in model container [2019-01-12 14:48:09,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 02:48:09" (1/1) ... [2019-01-12 14:48:09,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 14:48:09,852 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 14:48:10,230 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 14:48:10,259 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 14:48:10,426 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 14:48:10,467 INFO L195 MainTranslator]: Completed translation [2019-01-12 14:48:10,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10 WrapperNode [2019-01-12 14:48:10,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 14:48:10,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 14:48:10,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 14:48:10,470 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 14:48:10,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:10,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:10,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 14:48:10,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 14:48:10,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 14:48:10,605 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 14:48:10,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:10,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:10,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:10,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:10,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:10,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:10,683 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... [2019-01-12 14:48:10,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 14:48:10,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 14:48:10,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 14:48:10,689 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 14:48:10,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 14:48:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 14:48:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-12 14:48:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 14:48:10,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 14:48:12,121 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 14:48:12,122 INFO L286 CfgBuilder]: Removed 168 assue(true) statements. [2019-01-12 14:48:12,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:48:12 BoogieIcfgContainer [2019-01-12 14:48:12,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 14:48:12,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 14:48:12,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 14:48:12,128 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 14:48:12,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 02:48:09" (1/3) ... [2019-01-12 14:48:12,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166c4698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 02:48:12, skipping insertion in model container [2019-01-12 14:48:12,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:48:10" (2/3) ... [2019-01-12 14:48:12,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166c4698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 02:48:12, skipping insertion in model container [2019-01-12 14:48:12,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:48:12" (3/3) ... [2019-01-12 14:48:12,132 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product40_false-unreach-call_false-termination.cil.c [2019-01-12 14:48:12,143 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 14:48:12,152 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-12 14:48:12,168 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-12 14:48:12,197 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 14:48:12,198 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 14:48:12,198 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 14:48:12,198 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 14:48:12,199 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 14:48:12,199 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 14:48:12,199 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 14:48:12,199 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 14:48:12,199 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 14:48:12,218 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states. [2019-01-12 14:48:12,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-01-12 14:48:12,227 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:12,228 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:48:12,230 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:12,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:12,235 INFO L82 PathProgramCache]: Analyzing trace with hash 228795593, now seen corresponding path program 1 times [2019-01-12 14:48:12,237 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:12,237 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:12,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:12,291 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:12,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:12,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:48:12,506 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:12,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 14:48:12,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-12 14:48:12,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-12 14:48:12,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 14:48:12,523 INFO L87 Difference]: Start difference. First operand 119 states. Second operand 2 states. [2019-01-12 14:48:12,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:12,555 INFO L93 Difference]: Finished difference Result 232 states and 353 transitions. [2019-01-12 14:48:12,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-12 14:48:12,557 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-01-12 14:48:12,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:12,569 INFO L225 Difference]: With dead ends: 232 [2019-01-12 14:48:12,570 INFO L226 Difference]: Without dead ends: 115 [2019-01-12 14:48:12,574 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 14:48:12,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-01-12 14:48:12,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-01-12 14:48:12,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-01-12 14:48:12,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 168 transitions. [2019-01-12 14:48:12,624 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 168 transitions. Word has length 18 [2019-01-12 14:48:12,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:12,624 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 168 transitions. [2019-01-12 14:48:12,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-12 14:48:12,625 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 168 transitions. [2019-01-12 14:48:12,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-12 14:48:12,627 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:12,627 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:48:12,628 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:12,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:12,628 INFO L82 PathProgramCache]: Analyzing trace with hash 303686568, now seen corresponding path program 1 times [2019-01-12 14:48:12,628 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:12,628 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:12,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:12,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:12,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:12,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:48:12,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:12,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 14:48:12,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 14:48:12,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 14:48:12,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:12,819 INFO L87 Difference]: Start difference. First operand 115 states and 168 transitions. Second operand 3 states. [2019-01-12 14:48:12,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:12,858 INFO L93 Difference]: Finished difference Result 115 states and 168 transitions. [2019-01-12 14:48:12,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 14:48:12,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-01-12 14:48:12,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:12,861 INFO L225 Difference]: With dead ends: 115 [2019-01-12 14:48:12,861 INFO L226 Difference]: Without dead ends: 49 [2019-01-12 14:48:12,862 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 14:48:12,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-01-12 14:48:12,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-01-12 14:48:12,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-01-12 14:48:12,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2019-01-12 14:48:12,871 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2019-01-12 14:48:12,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:12,873 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2019-01-12 14:48:12,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 14:48:12,873 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2019-01-12 14:48:12,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-01-12 14:48:12,876 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:12,876 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 14:48:12,877 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:12,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:12,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1740217190, now seen corresponding path program 1 times [2019-01-12 14:48:12,879 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:12,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:12,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:12,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:12,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:12,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:13,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:48:13,061 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:13,061 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-12 14:48:13,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 14:48:13,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 14:48:13,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-12 14:48:13,063 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand 5 states. [2019-01-12 14:48:13,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:13,275 INFO L93 Difference]: Finished difference Result 117 states and 173 transitions. [2019-01-12 14:48:13,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-12 14:48:13,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-01-12 14:48:13,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:13,279 INFO L225 Difference]: With dead ends: 117 [2019-01-12 14:48:13,279 INFO L226 Difference]: Without dead ends: 74 [2019-01-12 14:48:13,280 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-12 14:48:13,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-01-12 14:48:13,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2019-01-12 14:48:13,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-01-12 14:48:13,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 103 transitions. [2019-01-12 14:48:13,293 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 103 transitions. Word has length 24 [2019-01-12 14:48:13,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:13,294 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 103 transitions. [2019-01-12 14:48:13,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 14:48:13,294 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2019-01-12 14:48:13,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-01-12 14:48:13,295 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:13,295 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 14:48:13,295 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:13,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:13,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1869059729, now seen corresponding path program 1 times [2019-01-12 14:48:13,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:13,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:13,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:13,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:13,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:13,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:48:13,411 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:13,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 14:48:13,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 14:48:13,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 14:48:13,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:13,412 INFO L87 Difference]: Start difference. First operand 70 states and 103 transitions. Second operand 3 states. [2019-01-12 14:48:13,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:13,509 INFO L93 Difference]: Finished difference Result 157 states and 233 transitions. [2019-01-12 14:48:13,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 14:48:13,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-01-12 14:48:13,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:13,511 INFO L225 Difference]: With dead ends: 157 [2019-01-12 14:48:13,512 INFO L226 Difference]: Without dead ends: 93 [2019-01-12 14:48:13,513 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 14:48:13,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-01-12 14:48:13,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2019-01-12 14:48:13,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-01-12 14:48:13,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 130 transitions. [2019-01-12 14:48:13,525 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 130 transitions. Word has length 26 [2019-01-12 14:48:13,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:13,526 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 130 transitions. [2019-01-12 14:48:13,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 14:48:13,527 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 130 transitions. [2019-01-12 14:48:13,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-01-12 14:48:13,528 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:13,528 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:48:13,528 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:13,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:13,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1176876603, now seen corresponding path program 1 times [2019-01-12 14:48:13,530 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:13,530 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:13,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:13,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:13,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:48:13,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:48:13,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:48:13,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-12 14:48:13,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 14:48:13,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 14:48:13,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-12 14:48:13,752 INFO L87 Difference]: Start difference. First operand 91 states and 130 transitions. Second operand 5 states. [2019-01-12 14:48:14,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:48:14,167 INFO L93 Difference]: Finished difference Result 474 states and 695 transitions. [2019-01-12 14:48:14,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-12 14:48:14,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-01-12 14:48:14,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:48:14,175 INFO L225 Difference]: With dead ends: 474 [2019-01-12 14:48:14,176 INFO L226 Difference]: Without dead ends: 389 [2019-01-12 14:48:14,177 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-12 14:48:14,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-01-12 14:48:14,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 156. [2019-01-12 14:48:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-01-12 14:48:14,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 218 transitions. [2019-01-12 14:48:14,233 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 218 transitions. Word has length 27 [2019-01-12 14:48:14,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:48:14,233 INFO L480 AbstractCegarLoop]: Abstraction has 156 states and 218 transitions. [2019-01-12 14:48:14,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 14:48:14,233 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 218 transitions. [2019-01-12 14:48:14,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-01-12 14:48:14,235 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:48:14,235 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:48:14,235 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:48:14,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:48:14,236 INFO L82 PathProgramCache]: Analyzing trace with hash -523387139, now seen corresponding path program 1 times [2019-01-12 14:48:14,236 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:48:14,236 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:48:14,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:14,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:48:14,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:48:14,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 14:48:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 14:48:15,079 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 14:48:15,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 02:48:15 BoogieIcfgContainer [2019-01-12 14:48:15,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 14:48:15,224 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 14:48:15,224 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 14:48:15,225 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 14:48:15,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:48:12" (3/4) ... [2019-01-12 14:48:15,229 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-12 14:48:15,389 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 14:48:15,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 14:48:15,391 INFO L168 Benchmark]: Toolchain (without parser) took 5638.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 216.0 MB). Free memory was 951.3 MB in the beginning and 1.2 GB in the end (delta: -248.2 MB). Peak memory consumption was 287.9 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:15,394 INFO L168 Benchmark]: CDTParser took 0.17 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 14:48:15,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:15,395 INFO L168 Benchmark]: Boogie Procedure Inliner took 134.77 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:15,395 INFO L168 Benchmark]: Boogie Preprocessor took 83.17 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 14:48:15,395 INFO L168 Benchmark]: RCFGBuilder took 1434.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 65.1 MB). Peak memory consumption was 65.1 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:15,403 INFO L168 Benchmark]: TraceAbstraction took 3099.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 830.1 MB in the end (delta: 232.3 MB). Peak memory consumption was 232.3 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:15,403 INFO L168 Benchmark]: Witness Printer took 165.59 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 69.7 MB). Free memory was 830.1 MB in the beginning and 1.2 GB in the end (delta: -369.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-01-12 14:48:15,412 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 713.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 134.77 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 83.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1434.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 65.1 MB). Peak memory consumption was 65.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3099.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 830.1 MB in the end (delta: 232.3 MB). Peak memory consumption was 232.3 MB. Max. memory is 11.5 GB. * Witness Printer took 165.59 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 69.7 MB). Free memory was 830.1 MB in the beginning and 1.2 GB in the end (delta: -369.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 221]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L229] int waterLevel = 1; [L230] int methaneLevelCritical = 0; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L766] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L529] int splverifierCounter ; [L530] int tmp ; [L531] int tmp___0 ; [L532] int tmp___1 ; [L533] int tmp___2 ; [L536] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L540] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] tmp = __VERIFIER_nondet_int() [L548] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L247] COND TRUE waterLevel < 2 [L248] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L556] tmp___0 = __VERIFIER_nondet_int() [L558] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp___2 = __VERIFIER_nondet_int() [L568] COND FALSE !(\read(tmp___2)) [L574] tmp___1 = __VERIFIER_nondet_int() [L576] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L508] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L515] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L334] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L341] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L184] int tmp ; [L185] int tmp___0 ; [L186] int tmp___1 ; [L268] int retValue_acc ; [L271] retValue_acc = methaneLevelCritical [L272] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L190] tmp = isMethaneLevelCritical() [L192] COND FALSE !(\read(tmp)) [L300] int retValue_acc ; [L303] retValue_acc = waterLevel [L304] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L196] tmp___0 = getWaterLevel() [L198] COND TRUE tmp___0 == 2 [L441] int retValue_acc ; [L444] retValue_acc = pumpRunning [L445] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L200] tmp___1 = isPumpRunning() [L202] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L221] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 3 error locations. UNSAFE Result, 3.0s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 493 SDtfs, 652 SDslu, 357 SDs, 0 SdLazy, 65 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred 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, 239 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 4791 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...