./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec3_product64_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/product-lines/minepump_spec3_product64_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 351e1061dd8393b15ba9fc7223df15ae9d3170ab ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 09:43:31,502 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 09:43:31,504 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 09:43:31,517 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 09:43:31,517 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 09:43:31,518 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 09:43:31,520 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 09:43:31,521 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 09:43:31,523 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 09:43:31,524 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 09:43:31,525 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 09:43:31,525 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 09:43:31,526 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 09:43:31,527 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 09:43:31,528 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 09:43:31,529 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 09:43:31,530 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 09:43:31,531 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 09:43:31,533 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 09:43:31,535 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 09:43:31,536 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 09:43:31,537 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 09:43:31,540 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 09:43:31,540 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 09:43:31,540 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 09:43:31,541 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 09:43:31,542 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 09:43:31,543 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 09:43:31,544 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 09:43:31,545 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 09:43:31,545 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 09:43:31,546 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 09:43:31,546 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 09:43:31,546 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 09:43:31,547 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 09:43:31,548 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 09:43:31,548 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 09:43:31,568 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 09:43:31,568 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 09:43:31,570 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 09:43:31,570 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 09:43:31,570 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 09:43:31,570 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 09:43:31,570 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 09:43:31,570 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 09:43:31,571 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 09:43:31,571 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 09:43:31,571 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 09:43:31,571 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 09:43:31,571 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 09:43:31,571 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 09:43:31,572 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 09:43:31,572 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 09:43:31,572 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 09:43:31,572 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 09:43:31,572 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 09:43:31,573 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 09:43:31,573 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 09:43:31,573 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 09:43:31,573 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 09:43:31,573 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 09:43:31,573 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 09:43:31,574 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 09:43:31,574 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 09:43:31,574 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 09:43:31,574 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 -> 351e1061dd8393b15ba9fc7223df15ae9d3170ab [2018-12-31 09:43:31,622 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 09:43:31,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 09:43:31,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 09:43:31,648 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 09:43:31,648 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 09:43:31,650 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product64_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:31,724 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190c29100/fcff40573d194d9eab4be0c7d95bddc9/FLAGb0297a5bc [2018-12-31 09:43:32,259 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 09:43:32,260 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product64_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:32,275 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190c29100/fcff40573d194d9eab4be0c7d95bddc9/FLAGb0297a5bc [2018-12-31 09:43:32,527 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190c29100/fcff40573d194d9eab4be0c7d95bddc9 [2018-12-31 09:43:32,532 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 09:43:32,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 09:43:32,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 09:43:32,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 09:43:32,541 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 09:43:32,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 09:43:32" (1/1) ... [2018-12-31 09:43:32,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74fb2347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:32, skipping insertion in model container [2018-12-31 09:43:32,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 09:43:32" (1/1) ... [2018-12-31 09:43:32,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 09:43:32,599 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 09:43:33,000 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 09:43:33,016 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 09:43:33,199 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 09:43:33,249 INFO L195 MainTranslator]: Completed translation [2018-12-31 09:43:33,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:33 WrapperNode [2018-12-31 09:43:33,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 09:43:33,251 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 09:43:33,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 09:43:33,251 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 09:43:33,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:33" (1/1) ... [2018-12-31 09:43:33,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:33" (1/1) ... [2018-12-31 09:43:33,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 09:43:33,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 09:43:33,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 09:43:33,348 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 09:43:33,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:33" (1/1) ... [2018-12-31 09:43:33,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:33" (1/1) ... [2018-12-31 09:43:33,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:33" (1/1) ... [2018-12-31 09:43:33,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:33" (1/1) ... [2018-12-31 09:43:33,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:33" (1/1) ... [2018-12-31 09:43:33,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:33" (1/1) ... [2018-12-31 09:43:33,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:33" (1/1) ... [2018-12-31 09:43:33,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 09:43:33,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 09:43:33,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 09:43:33,430 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 09:43:33,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 09:43:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 09:43:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-31 09:43:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 09:43:33,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 09:43:35,698 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 09:43:35,698 INFO L280 CfgBuilder]: Removed 360 assue(true) statements. [2018-12-31 09:43:35,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:35 BoogieIcfgContainer [2018-12-31 09:43:35,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 09:43:35,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 09:43:35,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 09:43:35,703 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 09:43:35,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 09:43:32" (1/3) ... [2018-12-31 09:43:35,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d194ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 09:43:35, skipping insertion in model container [2018-12-31 09:43:35,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:33" (2/3) ... [2018-12-31 09:43:35,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d194ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 09:43:35, skipping insertion in model container [2018-12-31 09:43:35,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:35" (3/3) ... [2018-12-31 09:43:35,707 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:35,718 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 09:43:35,726 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-31 09:43:35,744 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-31 09:43:35,788 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 09:43:35,788 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 09:43:35,789 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 09:43:35,789 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 09:43:35,789 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 09:43:35,789 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 09:43:35,789 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 09:43:35,789 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 09:43:35,790 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 09:43:35,817 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states. [2018-12-31 09:43:35,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-31 09:43:35,826 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:35,827 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 09:43:35,830 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:35,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:35,837 INFO L82 PathProgramCache]: Analyzing trace with hash 798211303, now seen corresponding path program 1 times [2018-12-31 09:43:35,839 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:35,839 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:35,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:35,885 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:35,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:36,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 09:43:36,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:36,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 09:43:36,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 09:43:36,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 09:43:36,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 09:43:36,131 INFO L87 Difference]: Start difference. First operand 233 states. Second operand 2 states. [2018-12-31 09:43:36,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:36,183 INFO L93 Difference]: Finished difference Result 460 states and 689 transitions. [2018-12-31 09:43:36,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 09:43:36,186 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-31 09:43:36,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:36,202 INFO L225 Difference]: With dead ends: 460 [2018-12-31 09:43:36,202 INFO L226 Difference]: Without dead ends: 229 [2018-12-31 09:43:36,207 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 09:43:36,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2018-12-31 09:43:36,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2018-12-31 09:43:36,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-12-31 09:43:36,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 336 transitions. [2018-12-31 09:43:36,271 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 336 transitions. Word has length 18 [2018-12-31 09:43:36,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:36,272 INFO L480 AbstractCegarLoop]: Abstraction has 229 states and 336 transitions. [2018-12-31 09:43:36,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 09:43:36,272 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 336 transitions. [2018-12-31 09:43:36,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-31 09:43:36,274 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:36,274 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 09:43:36,275 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:36,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:36,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1952869156, now seen corresponding path program 1 times [2018-12-31 09:43:36,275 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:36,275 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:36,276 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:36,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:36,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:36,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 09:43:36,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:36,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 09:43:36,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:36,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:36,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:36,486 INFO L87 Difference]: Start difference. First operand 229 states and 336 transitions. Second operand 3 states. [2018-12-31 09:43:36,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:36,519 INFO L93 Difference]: Finished difference Result 229 states and 336 transitions. [2018-12-31 09:43:36,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:36,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-12-31 09:43:36,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:36,522 INFO L225 Difference]: With dead ends: 229 [2018-12-31 09:43:36,522 INFO L226 Difference]: Without dead ends: 87 [2018-12-31 09:43:36,524 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:36,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-12-31 09:43:36,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2018-12-31 09:43:36,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-12-31 09:43:36,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 127 transitions. [2018-12-31 09:43:36,534 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 127 transitions. Word has length 19 [2018-12-31 09:43:36,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:36,534 INFO L480 AbstractCegarLoop]: Abstraction has 87 states and 127 transitions. [2018-12-31 09:43:36,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:36,535 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 127 transitions. [2018-12-31 09:43:36,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-31 09:43:36,537 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:36,537 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 09:43:36,537 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:36,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:36,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1012740860, now seen corresponding path program 1 times [2018-12-31 09:43:36,538 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:36,538 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:36,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:36,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:36,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:36,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 09:43:36,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:36,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 09:43:36,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:36,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:36,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:36,712 INFO L87 Difference]: Start difference. First operand 87 states and 127 transitions. Second operand 3 states. [2018-12-31 09:43:36,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:36,788 INFO L93 Difference]: Finished difference Result 249 states and 369 transitions. [2018-12-31 09:43:36,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:36,789 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-12-31 09:43:36,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:36,791 INFO L225 Difference]: With dead ends: 249 [2018-12-31 09:43:36,791 INFO L226 Difference]: Without dead ends: 168 [2018-12-31 09:43:36,792 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:36,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2018-12-31 09:43:36,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 164. [2018-12-31 09:43:36,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-12-31 09:43:36,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 243 transitions. [2018-12-31 09:43:36,814 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 243 transitions. Word has length 24 [2018-12-31 09:43:36,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:36,815 INFO L480 AbstractCegarLoop]: Abstraction has 164 states and 243 transitions. [2018-12-31 09:43:36,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:36,815 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 243 transitions. [2018-12-31 09:43:36,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-31 09:43:36,817 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:36,817 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 09:43:36,817 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:36,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:36,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1198598115, now seen corresponding path program 1 times [2018-12-31 09:43:36,818 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:36,818 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:36,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:36,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:36,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:36,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 09:43:36,939 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:36,939 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 09:43:36,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:36,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:36,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:36,940 INFO L87 Difference]: Start difference. First operand 164 states and 243 transitions. Second operand 3 states. [2018-12-31 09:43:37,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:37,045 INFO L93 Difference]: Finished difference Result 337 states and 504 transitions. [2018-12-31 09:43:37,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:37,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-12-31 09:43:37,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:37,048 INFO L225 Difference]: With dead ends: 337 [2018-12-31 09:43:37,050 INFO L226 Difference]: Without dead ends: 179 [2018-12-31 09:43:37,051 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:37,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-12-31 09:43:37,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2018-12-31 09:43:37,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2018-12-31 09:43:37,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 255 transitions. [2018-12-31 09:43:37,070 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 255 transitions. Word has length 27 [2018-12-31 09:43:37,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:37,071 INFO L480 AbstractCegarLoop]: Abstraction has 177 states and 255 transitions. [2018-12-31 09:43:37,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:37,071 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 255 transitions. [2018-12-31 09:43:37,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-31 09:43:37,072 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:37,072 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 09:43:37,073 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:37,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:37,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1576081447, now seen corresponding path program 1 times [2018-12-31 09:43:37,073 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:37,073 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:37,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:37,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:37,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:37,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 09:43:37,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:37,203 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 09:43:37,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 09:43:37,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 09:43:37,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 09:43:37,204 INFO L87 Difference]: Start difference. First operand 177 states and 255 transitions. Second operand 5 states. [2018-12-31 09:43:37,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:37,739 INFO L93 Difference]: Finished difference Result 899 states and 1311 transitions. [2018-12-31 09:43:37,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-31 09:43:37,740 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-12-31 09:43:37,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:37,744 INFO L225 Difference]: With dead ends: 899 [2018-12-31 09:43:37,745 INFO L226 Difference]: Without dead ends: 728 [2018-12-31 09:43:37,746 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-31 09:43:37,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2018-12-31 09:43:37,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 276. [2018-12-31 09:43:37,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2018-12-31 09:43:37,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 388 transitions. [2018-12-31 09:43:37,815 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 388 transitions. Word has length 27 [2018-12-31 09:43:37,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:37,815 INFO L480 AbstractCegarLoop]: Abstraction has 276 states and 388 transitions. [2018-12-31 09:43:37,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 09:43:37,816 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 388 transitions. [2018-12-31 09:43:37,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-31 09:43:37,820 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:37,820 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 09:43:37,820 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:37,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:37,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1018622107, now seen corresponding path program 1 times [2018-12-31 09:43:37,821 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:37,821 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:37,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:37,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:37,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 09:43:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 09:43:38,461 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 09:43:38,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 09:43:38 BoogieIcfgContainer [2018-12-31 09:43:38,654 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 09:43:38,654 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 09:43:38,654 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 09:43:38,655 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 09:43:38,655 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:35" (3/4) ... [2018-12-31 09:43:38,658 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 09:43:38,753 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 09:43:38,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 09:43:38,754 INFO L168 Benchmark]: Toolchain (without parser) took 6221.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 204.5 MB). Free memory was 952.7 MB in the beginning and 1.2 GB in the end (delta: -220.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 09:43:38,756 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 09:43:38,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -130.3 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:38,759 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:38,759 INFO L168 Benchmark]: Boogie Preprocessor took 78.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 09:43:38,761 INFO L168 Benchmark]: RCFGBuilder took 2269.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 986.8 MB in the end (delta: 89.3 MB). Peak memory consumption was 89.3 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:38,761 INFO L168 Benchmark]: TraceAbstraction took 2953.95 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 99.6 MB). Free memory was 986.8 MB in the beginning and 1.2 GB in the end (delta: -199.3 MB). Peak memory consumption was 240.5 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:38,768 INFO L168 Benchmark]: Witness Printer took 98.73 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: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:38,772 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 714.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -130.3 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 96.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2269.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 986.8 MB in the end (delta: 89.3 MB). Peak memory consumption was 89.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2953.95 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 99.6 MB). Free memory was 986.8 MB in the beginning and 1.2 GB in the end (delta: -199.3 MB). Peak memory consumption was 240.5 MB. Max. memory is 11.5 GB. * Witness Printer took 98.73 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: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L427] int waterLevel = 1; [L428] int methaneLevelCritical = 0; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [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] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L367] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L369] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L375] tmp = __VERIFIER_nondet_int() [L377] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L445] COND TRUE waterLevel < 2 [L446] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___2)) [L403] tmp___1 = __VERIFIER_nondet_int() [L405] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L334] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L341] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L98] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L105] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1002] int tmp ; [L1003] int tmp___0 ; [L1004] int tmp___1 ; [L466] int retValue_acc ; [L469] retValue_acc = methaneLevelCritical [L470] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1008] tmp = isMethaneLevelCritical() [L1010] COND FALSE !(\read(tmp)) [L498] int retValue_acc ; [L501] retValue_acc = waterLevel [L502] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1014] tmp___0 = getWaterLevel() [L1016] COND TRUE tmp___0 == 2 [L248] int retValue_acc ; [L251] retValue_acc = pumpRunning [L252] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1018] tmp___1 = isPumpRunning() [L1020] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L996] __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, 233 locations, 3 error locations. UNSAFE Result, 2.8s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 869 SDtfs, 694 SDslu, 598 SDs, 0 SdLazy, 73 SolverSat, 23 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, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=276occurred 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, 458 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 4790 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...