./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec3_product47_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_product47_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 8425c566d51ac72c4c499354b129f4f120e9c3b0 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 09:43:17,027 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 09:43:17,028 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 09:43:17,046 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 09:43:17,047 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 09:43:17,049 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 09:43:17,050 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 09:43:17,052 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 09:43:17,054 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 09:43:17,055 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 09:43:17,057 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 09:43:17,058 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 09:43:17,059 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 09:43:17,067 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 09:43:17,068 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 09:43:17,072 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 09:43:17,073 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 09:43:17,077 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 09:43:17,080 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 09:43:17,083 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 09:43:17,085 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 09:43:17,088 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 09:43:17,091 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 09:43:17,092 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 09:43:17,092 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 09:43:17,093 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 09:43:17,093 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 09:43:17,094 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 09:43:17,095 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 09:43:17,097 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 09:43:17,097 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 09:43:17,098 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 09:43:17,098 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 09:43:17,099 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 09:43:17,099 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 09:43:17,100 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 09:43:17,100 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 09:43:17,130 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 09:43:17,130 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 09:43:17,132 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 09:43:17,132 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 09:43:17,132 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 09:43:17,132 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 09:43:17,133 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 09:43:17,133 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 09:43:17,133 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 09:43:17,133 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 09:43:17,133 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 09:43:17,133 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 09:43:17,135 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 09:43:17,135 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 09:43:17,135 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 09:43:17,135 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 09:43:17,135 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 09:43:17,135 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 09:43:17,136 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 09:43:17,136 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 09:43:17,136 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 09:43:17,136 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 09:43:17,136 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 09:43:17,136 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 09:43:17,138 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 09:43:17,138 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 09:43:17,138 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 09:43:17,138 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 09:43:17,138 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 -> 8425c566d51ac72c4c499354b129f4f120e9c3b0 [2018-12-31 09:43:17,203 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 09:43:17,221 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 09:43:17,225 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 09:43:17,227 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 09:43:17,227 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 09:43:17,228 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product47_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:17,294 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d54576df/39c25caa0b994cd1a4e1327f7479f489/FLAG3d3518710 [2018-12-31 09:43:17,837 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 09:43:17,838 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product47_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:17,856 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d54576df/39c25caa0b994cd1a4e1327f7479f489/FLAG3d3518710 [2018-12-31 09:43:18,111 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d54576df/39c25caa0b994cd1a4e1327f7479f489 [2018-12-31 09:43:18,115 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 09:43:18,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 09:43:18,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 09:43:18,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 09:43:18,123 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 09:43:18,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 09:43:18" (1/1) ... [2018-12-31 09:43:18,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a9e942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:18, skipping insertion in model container [2018-12-31 09:43:18,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 09:43:18" (1/1) ... [2018-12-31 09:43:18,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 09:43:18,205 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 09:43:18,589 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 09:43:18,626 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 09:43:18,811 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 09:43:18,849 INFO L195 MainTranslator]: Completed translation [2018-12-31 09:43:18,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:18 WrapperNode [2018-12-31 09:43:18,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 09:43:18,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 09:43:18,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 09:43:18,851 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 09:43:18,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:18" (1/1) ... [2018-12-31 09:43:18,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:18" (1/1) ... [2018-12-31 09:43:18,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 09:43:18,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 09:43:18,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 09:43:18,940 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 09:43:18,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:18" (1/1) ... [2018-12-31 09:43:18,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:18" (1/1) ... [2018-12-31 09:43:18,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:18" (1/1) ... [2018-12-31 09:43:18,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:18" (1/1) ... [2018-12-31 09:43:18,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:18" (1/1) ... [2018-12-31 09:43:19,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:18" (1/1) ... [2018-12-31 09:43:19,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:18" (1/1) ... [2018-12-31 09:43:19,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 09:43:19,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 09:43:19,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 09:43:19,021 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 09:43:19,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:18" (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 09:43:19,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 09:43:19,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-31 09:43:19,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 09:43:19,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 09:43:20,530 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 09:43:20,531 INFO L280 CfgBuilder]: Removed 202 assue(true) statements. [2018-12-31 09:43:20,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:20 BoogieIcfgContainer [2018-12-31 09:43:20,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 09:43:20,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 09:43:20,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 09:43:20,536 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 09:43:20,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 09:43:18" (1/3) ... [2018-12-31 09:43:20,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@247564dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 09:43:20, skipping insertion in model container [2018-12-31 09:43:20,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:18" (2/3) ... [2018-12-31 09:43:20,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@247564dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 09:43:20, skipping insertion in model container [2018-12-31 09:43:20,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:20" (3/3) ... [2018-12-31 09:43:20,541 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:20,554 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 09:43:20,564 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-31 09:43:20,582 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-31 09:43:20,617 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 09:43:20,618 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 09:43:20,618 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 09:43:20,619 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 09:43:20,619 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 09:43:20,619 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 09:43:20,619 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 09:43:20,619 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 09:43:20,619 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 09:43:20,639 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2018-12-31 09:43:20,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-31 09:43:20,647 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:20,648 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 09:43:20,651 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:20,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:20,657 INFO L82 PathProgramCache]: Analyzing trace with hash 301971860, now seen corresponding path program 1 times [2018-12-31 09:43:20,659 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:20,660 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:20,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:20,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:20,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:20,933 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 09:43:20,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:20,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 09:43:20,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 09:43:20,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 09:43:20,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 09:43:20,954 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2018-12-31 09:43:20,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:20,990 INFO L93 Difference]: Finished difference Result 268 states and 401 transitions. [2018-12-31 09:43:20,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 09:43:20,992 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-31 09:43:20,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:21,006 INFO L225 Difference]: With dead ends: 268 [2018-12-31 09:43:21,006 INFO L226 Difference]: Without dead ends: 133 [2018-12-31 09:43:21,010 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 09:43:21,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-12-31 09:43:21,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2018-12-31 09:43:21,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-12-31 09:43:21,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2018-12-31 09:43:21,064 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 18 [2018-12-31 09:43:21,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:21,064 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2018-12-31 09:43:21,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 09:43:21,064 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2018-12-31 09:43:21,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-31 09:43:21,065 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:21,066 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 09:43:21,066 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:21,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:21,067 INFO L82 PathProgramCache]: Analyzing trace with hash -609058893, now seen corresponding path program 1 times [2018-12-31 09:43:21,067 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:21,067 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:21,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:21,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:21,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:21,232 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 09:43:21,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:21,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 09:43:21,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:21,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:21,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:21,237 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand 3 states. [2018-12-31 09:43:21,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:21,278 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions. [2018-12-31 09:43:21,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:21,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-12-31 09:43:21,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:21,280 INFO L225 Difference]: With dead ends: 133 [2018-12-31 09:43:21,280 INFO L226 Difference]: Without dead ends: 55 [2018-12-31 09:43:21,283 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 09:43:21,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-12-31 09:43:21,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-12-31 09:43:21,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-12-31 09:43:21,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2018-12-31 09:43:21,296 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 19 [2018-12-31 09:43:21,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:21,296 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2018-12-31 09:43:21,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:21,297 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2018-12-31 09:43:21,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-31 09:43:21,299 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:21,299 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 09:43:21,299 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:21,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:21,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1636802596, now seen corresponding path program 1 times [2018-12-31 09:43:21,300 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:21,300 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:21,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:21,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:21,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:21,486 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 09:43:21,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:21,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 09:43:21,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 09:43:21,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 09:43:21,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-31 09:43:21,488 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 6 states. [2018-12-31 09:43:21,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:21,730 INFO L93 Difference]: Finished difference Result 178 states and 262 transitions. [2018-12-31 09:43:21,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 09:43:21,733 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-31 09:43:21,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:21,735 INFO L225 Difference]: With dead ends: 178 [2018-12-31 09:43:21,735 INFO L226 Difference]: Without dead ends: 129 [2018-12-31 09:43:21,736 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-31 09:43:21,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-12-31 09:43:21,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 76. [2018-12-31 09:43:21,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-12-31 09:43:21,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 111 transitions. [2018-12-31 09:43:21,752 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 111 transitions. Word has length 24 [2018-12-31 09:43:21,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:21,752 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 111 transitions. [2018-12-31 09:43:21,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 09:43:21,752 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 111 transitions. [2018-12-31 09:43:21,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-31 09:43:21,755 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:21,755 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 09:43:21,755 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:21,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:21,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1444892134, now seen corresponding path program 1 times [2018-12-31 09:43:21,756 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:21,756 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:21,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:21,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:21,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:21,839 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 09:43:21,839 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:21,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 09:43:21,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:21,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:21,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:21,841 INFO L87 Difference]: Start difference. First operand 76 states and 111 transitions. Second operand 3 states. [2018-12-31 09:43:21,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:21,985 INFO L93 Difference]: Finished difference Result 169 states and 249 transitions. [2018-12-31 09:43:21,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:21,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-12-31 09:43:21,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:21,988 INFO L225 Difference]: With dead ends: 169 [2018-12-31 09:43:21,989 INFO L226 Difference]: Without dead ends: 99 [2018-12-31 09:43:21,990 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 09:43:21,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-12-31 09:43:22,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2018-12-31 09:43:22,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-12-31 09:43:22,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 138 transitions. [2018-12-31 09:43:22,005 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 138 transitions. Word has length 26 [2018-12-31 09:43:22,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:22,006 INFO L480 AbstractCegarLoop]: Abstraction has 97 states and 138 transitions. [2018-12-31 09:43:22,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:22,006 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 138 transitions. [2018-12-31 09:43:22,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-31 09:43:22,007 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:22,007 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 09:43:22,009 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:22,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:22,010 INFO L82 PathProgramCache]: Analyzing trace with hash 266687089, now seen corresponding path program 1 times [2018-12-31 09:43:22,010 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:22,010 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:22,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:22,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:22,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:22,295 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 09:43:22,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:22,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 09:43:22,297 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 09:43:22,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 09:43:22,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 09:43:22,298 INFO L87 Difference]: Start difference. First operand 97 states and 138 transitions. Second operand 5 states. [2018-12-31 09:43:23,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:23,066 INFO L93 Difference]: Finished difference Result 507 states and 739 transitions. [2018-12-31 09:43:23,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-31 09:43:23,067 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-12-31 09:43:23,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:23,070 INFO L225 Difference]: With dead ends: 507 [2018-12-31 09:43:23,072 INFO L226 Difference]: Without dead ends: 416 [2018-12-31 09:43:23,073 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-31 09:43:23,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2018-12-31 09:43:23,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 165. [2018-12-31 09:43:23,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-12-31 09:43:23,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 230 transitions. [2018-12-31 09:43:23,129 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 230 transitions. Word has length 27 [2018-12-31 09:43:23,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:23,131 INFO L480 AbstractCegarLoop]: Abstraction has 165 states and 230 transitions. [2018-12-31 09:43:23,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 09:43:23,131 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 230 transitions. [2018-12-31 09:43:23,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-31 09:43:23,136 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:23,136 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 09:43:23,137 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:23,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:23,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1433576653, now seen corresponding path program 1 times [2018-12-31 09:43:23,137 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:23,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:23,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:23,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:23,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 09:43:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 09:43:23,773 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 09:43:23,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 09:43:23 BoogieIcfgContainer [2018-12-31 09:43:23,923 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 09:43:23,924 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 09:43:23,924 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 09:43:23,925 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 09:43:23,926 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:20" (3/4) ... [2018-12-31 09:43:23,929 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 09:43:24,023 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 09:43:24,023 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 09:43:24,024 INFO L168 Benchmark]: Toolchain (without parser) took 5908.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.0 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -219.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 09:43:24,026 INFO L168 Benchmark]: CDTParser took 0.15 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 09:43:24,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -149.4 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:24,027 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.54 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 09:43:24,028 INFO L168 Benchmark]: Boogie Preprocessor took 80.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:24,028 INFO L168 Benchmark]: RCFGBuilder took 1511.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:24,029 INFO L168 Benchmark]: TraceAbstraction took 3390.71 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 84.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -159.7 MB). Peak memory consumption was 252.6 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:24,029 INFO L168 Benchmark]: Witness Printer took 99.64 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: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:24,033 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 731.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -149.4 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 88.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 80.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1511.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.7 MB). Peak memory consumption was 66.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3390.71 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 84.4 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -159.7 MB). Peak memory consumption was 252.6 MB. Max. memory is 11.5 GB. * Witness Printer took 99.64 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: 16.2 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L629] int pumpRunning = 0; [L630] int systemActive = 1; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; [L130] int retValue_acc ; [L131] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L179] int retValue_acc ; [L182] retValue_acc = 1 [L183] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L565] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L567] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L573] tmp = __VERIFIER_nondet_int() [L575] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] COND TRUE waterLevel < 2 [L860] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND FALSE !(\read(tmp___2)) [L599] tmp___1 = __VERIFIER_nondet_int() [L601] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L828] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L835] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L637] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L644] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L936] int tmp ; [L937] int tmp___0 ; [L938] int tmp___1 ; [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L942] tmp = isMethaneLevelCritical() [L944] COND FALSE !(\read(tmp)) [L912] int retValue_acc ; [L915] retValue_acc = waterLevel [L916] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L948] tmp___0 = getWaterLevel() [L950] COND TRUE tmp___0 == 2 [L761] int retValue_acc ; [L764] retValue_acc = pumpRunning [L765] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L952] tmp___1 = isPumpRunning() [L954] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L44] __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, 137 locations, 3 error locations. UNSAFE Result, 3.3s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 557 SDtfs, 719 SDslu, 708 SDs, 0 SdLazy, 79 SolverSat, 20 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, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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, 306 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 5504 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...