./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec3_product35_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_product35_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 75ad40de7ac44b78584ba916fa204e981921222d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:43:07,523 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 09:43:07,525 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 09:43:07,542 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 09:43:07,542 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 09:43:07,544 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 09:43:07,547 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 09:43:07,549 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 09:43:07,551 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 09:43:07,551 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 09:43:07,552 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 09:43:07,552 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 09:43:07,553 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 09:43:07,554 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 09:43:07,555 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 09:43:07,556 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 09:43:07,557 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 09:43:07,559 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 09:43:07,561 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 09:43:07,563 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 09:43:07,564 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 09:43:07,565 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 09:43:07,567 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 09:43:07,568 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 09:43:07,568 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 09:43:07,571 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 09:43:07,572 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 09:43:07,573 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 09:43:07,574 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 09:43:07,575 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 09:43:07,575 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 09:43:07,579 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 09:43:07,579 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 09:43:07,579 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 09:43:07,580 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 09:43:07,585 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 09:43:07,586 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 09:43:07,611 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 09:43:07,611 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 09:43:07,612 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 09:43:07,612 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 09:43:07,612 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 09:43:07,613 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 09:43:07,613 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 09:43:07,614 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 09:43:07,614 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 09:43:07,614 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 09:43:07,614 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 09:43:07,614 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 09:43:07,614 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 09:43:07,615 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 09:43:07,615 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 09:43:07,615 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 09:43:07,615 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 09:43:07,615 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 09:43:07,616 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 09:43:07,617 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 09:43:07,617 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 09:43:07,618 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 09:43:07,618 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 09:43:07,618 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 09:43:07,618 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 09:43:07,618 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 09:43:07,619 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 09:43:07,620 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 09:43:07,620 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 -> 75ad40de7ac44b78584ba916fa204e981921222d [2018-12-31 09:43:07,657 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 09:43:07,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 09:43:07,680 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 09:43:07,682 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 09:43:07,682 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 09:43:07,683 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product35_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:07,748 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ce01d6e/6ed557fdd57048b98411edf641ca2aeb/FLAGa35eb06db [2018-12-31 09:43:08,295 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 09:43:08,296 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product35_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:08,310 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ce01d6e/6ed557fdd57048b98411edf641ca2aeb/FLAGa35eb06db [2018-12-31 09:43:08,559 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0ce01d6e/6ed557fdd57048b98411edf641ca2aeb [2018-12-31 09:43:08,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 09:43:08,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 09:43:08,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 09:43:08,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 09:43:08,572 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 09:43:08,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 09:43:08" (1/1) ... [2018-12-31 09:43:08,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18fc79c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:08, skipping insertion in model container [2018-12-31 09:43:08,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 09:43:08" (1/1) ... [2018-12-31 09:43:08,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 09:43:08,645 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 09:43:09,052 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 09:43:09,068 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 09:43:09,187 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 09:43:09,317 INFO L195 MainTranslator]: Completed translation [2018-12-31 09:43:09,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:09 WrapperNode [2018-12-31 09:43:09,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 09:43:09,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 09:43:09,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 09:43:09,321 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 09:43:09,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:09" (1/1) ... [2018-12-31 09:43:09,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:09" (1/1) ... [2018-12-31 09:43:09,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 09:43:09,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 09:43:09,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 09:43:09,416 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 09:43:09,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:09" (1/1) ... [2018-12-31 09:43:09,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:09" (1/1) ... [2018-12-31 09:43:09,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:09" (1/1) ... [2018-12-31 09:43:09,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:09" (1/1) ... [2018-12-31 09:43:09,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:09" (1/1) ... [2018-12-31 09:43:09,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:09" (1/1) ... [2018-12-31 09:43:09,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:09" (1/1) ... [2018-12-31 09:43:09,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 09:43:09,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 09:43:09,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 09:43:09,458 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 09:43:09,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:09" (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 09:43:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 09:43:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-31 09:43:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 09:43:09,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 09:43:10,912 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 09:43:10,913 INFO L280 CfgBuilder]: Removed 106 assue(true) statements. [2018-12-31 09:43:10,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:10 BoogieIcfgContainer [2018-12-31 09:43:10,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 09:43:10,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 09:43:10,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 09:43:10,930 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 09:43:10,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 09:43:08" (1/3) ... [2018-12-31 09:43:10,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af61493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 09:43:10, skipping insertion in model container [2018-12-31 09:43:10,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:09" (2/3) ... [2018-12-31 09:43:10,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af61493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 09:43:10, skipping insertion in model container [2018-12-31 09:43:10,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:10" (3/3) ... [2018-12-31 09:43:10,934 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:10,952 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 09:43:10,961 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-31 09:43:10,980 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-31 09:43:11,014 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 09:43:11,014 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 09:43:11,015 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 09:43:11,015 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 09:43:11,016 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 09:43:11,016 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 09:43:11,016 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 09:43:11,016 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 09:43:11,016 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 09:43:11,035 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2018-12-31 09:43:11,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-31 09:43:11,043 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:11,044 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 09:43:11,047 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:11,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:11,054 INFO L82 PathProgramCache]: Analyzing trace with hash 625606487, now seen corresponding path program 1 times [2018-12-31 09:43:11,056 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:11,057 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:11,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:11,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:11,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:11,318 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 09:43:11,325 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:11,327 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 09:43:11,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 09:43:11,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 09:43:11,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 09:43:11,349 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 2 states. [2018-12-31 09:43:11,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:11,382 INFO L93 Difference]: Finished difference Result 166 states and 251 transitions. [2018-12-31 09:43:11,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 09:43:11,384 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-31 09:43:11,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:11,397 INFO L225 Difference]: With dead ends: 166 [2018-12-31 09:43:11,397 INFO L226 Difference]: Without dead ends: 82 [2018-12-31 09:43:11,402 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 09:43:11,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-12-31 09:43:11,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-12-31 09:43:11,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-12-31 09:43:11,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2018-12-31 09:43:11,449 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 18 [2018-12-31 09:43:11,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:11,450 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2018-12-31 09:43:11,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 09:43:11,450 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2018-12-31 09:43:11,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-31 09:43:11,451 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:11,451 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 09:43:11,453 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:11,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:11,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1306218461, now seen corresponding path program 1 times [2018-12-31 09:43:11,453 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:11,454 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:11,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:11,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:11,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:11,635 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 09:43:11,636 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:11,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 09:43:11,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:11,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:11,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:11,639 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand 3 states. [2018-12-31 09:43:11,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:11,675 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2018-12-31 09:43:11,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:11,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-12-31 09:43:11,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:11,678 INFO L225 Difference]: With dead ends: 82 [2018-12-31 09:43:11,678 INFO L226 Difference]: Without dead ends: 38 [2018-12-31 09:43:11,680 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 09:43:11,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-31 09:43:11,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-31 09:43:11,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-31 09:43:11,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2018-12-31 09:43:11,687 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2018-12-31 09:43:11,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:11,688 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2018-12-31 09:43:11,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:11,688 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2018-12-31 09:43:11,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-31 09:43:11,689 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:11,689 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 09:43:11,691 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:11,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:11,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810196, now seen corresponding path program 1 times [2018-12-31 09:43:11,692 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:11,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:11,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:11,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:11,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:11,937 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 09:43:11,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:11,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 09:43:11,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 09:43:11,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 09:43:11,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-31 09:43:11,939 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 6 states. [2018-12-31 09:43:12,211 WARN L181 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-31 09:43:12,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:12,460 INFO L93 Difference]: Finished difference Result 127 states and 187 transitions. [2018-12-31 09:43:12,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 09:43:12,461 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-31 09:43:12,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:12,463 INFO L225 Difference]: With dead ends: 127 [2018-12-31 09:43:12,463 INFO L226 Difference]: Without dead ends: 95 [2018-12-31 09:43:12,464 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-31 09:43:12,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-12-31 09:43:12,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 59. [2018-12-31 09:43:12,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-12-31 09:43:12,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2018-12-31 09:43:12,481 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 86 transitions. Word has length 24 [2018-12-31 09:43:12,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:12,486 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 86 transitions. [2018-12-31 09:43:12,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 09:43:12,486 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 86 transitions. [2018-12-31 09:43:12,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-31 09:43:12,487 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:12,488 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] [2018-12-31 09:43:12,488 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:12,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:12,492 INFO L82 PathProgramCache]: Analyzing trace with hash -718050600, now seen corresponding path program 1 times [2018-12-31 09:43:12,492 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:12,493 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:12,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:12,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:12,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:12,648 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 09:43:12,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:12,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 09:43:12,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:12,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:12,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:12,651 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand 3 states. [2018-12-31 09:43:12,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:12,812 INFO L93 Difference]: Finished difference Result 135 states and 199 transitions. [2018-12-31 09:43:12,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:12,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-12-31 09:43:12,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:12,815 INFO L225 Difference]: With dead ends: 135 [2018-12-31 09:43:12,815 INFO L226 Difference]: Without dead ends: 82 [2018-12-31 09:43:12,816 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 09:43:12,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-12-31 09:43:12,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2018-12-31 09:43:12,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-12-31 09:43:12,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2018-12-31 09:43:12,832 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 25 [2018-12-31 09:43:12,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:12,832 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2018-12-31 09:43:12,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:12,832 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2018-12-31 09:43:12,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-31 09:43:12,834 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:12,835 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 09:43:12,835 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:12,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:12,835 INFO L82 PathProgramCache]: Analyzing trace with hash -979667415, now seen corresponding path program 1 times [2018-12-31 09:43:12,836 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:12,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:12,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:12,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:12,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:12,957 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 09:43:12,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:12,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 09:43:12,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 09:43:12,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 09:43:12,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 09:43:12,961 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand 5 states. [2018-12-31 09:43:13,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:13,345 INFO L93 Difference]: Finished difference Result 427 states and 628 transitions. [2018-12-31 09:43:13,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-31 09:43:13,347 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-12-31 09:43:13,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:13,350 INFO L225 Difference]: With dead ends: 427 [2018-12-31 09:43:13,350 INFO L226 Difference]: Without dead ends: 353 [2018-12-31 09:43:13,351 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 09:43:13,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2018-12-31 09:43:13,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 144. [2018-12-31 09:43:13,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-12-31 09:43:13,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 201 transitions. [2018-12-31 09:43:13,391 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 201 transitions. Word has length 27 [2018-12-31 09:43:13,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:13,391 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 201 transitions. [2018-12-31 09:43:13,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 09:43:13,391 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 201 transitions. [2018-12-31 09:43:13,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-31 09:43:13,396 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:13,396 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 09:43:13,397 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:13,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:13,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1615036139, now seen corresponding path program 1 times [2018-12-31 09:43:13,397 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:13,397 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:13,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:13,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:13,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 09:43:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 09:43:14,156 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 09:43:14,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 09:43:14 BoogieIcfgContainer [2018-12-31 09:43:14,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 09:43:14,283 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 09:43:14,283 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 09:43:14,283 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 09:43:14,285 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:10" (3/4) ... [2018-12-31 09:43:14,288 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 09:43:14,393 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 09:43:14,393 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 09:43:14,394 INFO L168 Benchmark]: Toolchain (without parser) took 5828.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 947.3 MB in the beginning and 823.2 MB in the end (delta: 124.2 MB). Peak memory consumption was 270.5 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:14,395 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 09:43:14,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -199.4 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:14,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.05 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. [2018-12-31 09:43:14,398 INFO L168 Benchmark]: Boogie Preprocessor took 40.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 09:43:14,398 INFO L168 Benchmark]: RCFGBuilder took 1456.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:14,399 INFO L168 Benchmark]: TraceAbstraction took 3368.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 829.8 MB in the end (delta: 246.0 MB). Peak memory consumption was 246.0 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:14,400 INFO L168 Benchmark]: Witness Printer took 109.75 ms. Allocated memory is still 1.2 GB. Free memory was 829.8 MB in the beginning and 823.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:14,405 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 751.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -199.4 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 95.05 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 40.66 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 1456.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 57.6 MB). Peak memory consumption was 57.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3368.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 829.8 MB in the end (delta: 246.0 MB). Peak memory consumption was 246.0 MB. Max. memory is 11.5 GB. * Witness Printer took 109.75 ms. Allocated memory is still 1.2 GB. Free memory was 829.8 MB in the beginning and 823.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L276] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L283] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L128] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L135] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L303] tmp___0 = getWaterLevel() [L305] COND TRUE tmp___0 == 2 [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L307] tmp___1 = isPumpRunning() [L309] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L556] __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, 86 locations, 3 error locations. UNSAFE Result, 3.2s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 361 SDtfs, 484 SDslu, 517 SDs, 0 SdLazy, 72 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred 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, 247 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 5373 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...