./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec3_product51_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_product51_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 9033da3093a23b8640383fad25d5fd5dfea2cc28 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:43:21,190 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 09:43:21,192 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 09:43:21,208 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 09:43:21,209 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 09:43:21,211 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 09:43:21,213 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 09:43:21,215 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 09:43:21,217 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 09:43:21,219 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 09:43:21,222 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 09:43:21,222 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 09:43:21,224 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 09:43:21,227 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 09:43:21,229 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 09:43:21,235 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 09:43:21,237 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 09:43:21,240 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 09:43:21,241 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 09:43:21,243 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 09:43:21,245 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 09:43:21,246 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 09:43:21,251 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 09:43:21,252 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 09:43:21,252 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 09:43:21,253 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 09:43:21,254 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 09:43:21,255 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 09:43:21,259 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 09:43:21,261 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 09:43:21,262 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 09:43:21,263 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 09:43:21,263 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 09:43:21,264 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 09:43:21,264 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 09:43:21,267 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 09:43:21,267 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 09:43:21,295 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 09:43:21,295 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 09:43:21,296 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 09:43:21,296 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 09:43:21,297 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 09:43:21,297 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 09:43:21,298 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 09:43:21,298 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 09:43:21,298 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 09:43:21,298 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 09:43:21,298 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 09:43:21,298 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 09:43:21,298 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 09:43:21,299 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 09:43:21,299 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 09:43:21,299 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 09:43:21,299 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 09:43:21,299 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 09:43:21,300 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 09:43:21,302 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 09:43:21,302 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 09:43:21,302 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 09:43:21,302 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 09:43:21,302 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 09:43:21,303 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 09:43:21,304 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 09:43:21,304 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 09:43:21,304 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 09:43:21,304 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 -> 9033da3093a23b8640383fad25d5fd5dfea2cc28 [2018-12-31 09:43:21,359 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 09:43:21,379 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 09:43:21,385 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 09:43:21,389 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 09:43:21,389 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 09:43:21,390 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product51_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:21,453 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80ef29afd/8d6d61a63d444e3e899ac0b391b57464/FLAG2e053a629 [2018-12-31 09:43:21,939 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 09:43:21,940 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product51_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:21,954 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80ef29afd/8d6d61a63d444e3e899ac0b391b57464/FLAG2e053a629 [2018-12-31 09:43:22,295 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80ef29afd/8d6d61a63d444e3e899ac0b391b57464 [2018-12-31 09:43:22,302 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 09:43:22,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 09:43:22,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 09:43:22,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 09:43:22,313 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 09:43:22,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 09:43:22" (1/1) ... [2018-12-31 09:43:22,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25da1d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:22, skipping insertion in model container [2018-12-31 09:43:22,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 09:43:22" (1/1) ... [2018-12-31 09:43:22,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 09:43:22,400 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 09:43:22,813 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 09:43:22,838 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 09:43:23,037 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 09:43:23,082 INFO L195 MainTranslator]: Completed translation [2018-12-31 09:43:23,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23 WrapperNode [2018-12-31 09:43:23,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 09:43:23,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 09:43:23,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 09:43:23,084 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 09:43:23,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 09:43:23,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 09:43:23,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 09:43:23,162 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 09:43:23,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (1/1) ... [2018-12-31 09:43:23,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 09:43:23,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 09:43:23,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 09:43:23,215 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 09:43:23,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (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 09:43:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 09:43:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-31 09:43:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 09:43:23,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 09:43:24,633 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 09:43:24,633 INFO L280 CfgBuilder]: Removed 166 assue(true) statements. [2018-12-31 09:43:24,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:24 BoogieIcfgContainer [2018-12-31 09:43:24,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 09:43:24,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 09:43:24,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 09:43:24,639 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 09:43:24,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 09:43:22" (1/3) ... [2018-12-31 09:43:24,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7847c38c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 09:43:24, skipping insertion in model container [2018-12-31 09:43:24,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:23" (2/3) ... [2018-12-31 09:43:24,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7847c38c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 09:43:24, skipping insertion in model container [2018-12-31 09:43:24,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:24" (3/3) ... [2018-12-31 09:43:24,647 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:24,656 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 09:43:24,663 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-31 09:43:24,681 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-31 09:43:24,718 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 09:43:24,719 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 09:43:24,719 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 09:43:24,719 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 09:43:24,719 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 09:43:24,720 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 09:43:24,720 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 09:43:24,720 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 09:43:24,720 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 09:43:24,742 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2018-12-31 09:43:24,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-31 09:43:24,750 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:24,750 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 09:43:24,752 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:24,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:24,758 INFO L82 PathProgramCache]: Analyzing trace with hash 335687254, now seen corresponding path program 1 times [2018-12-31 09:43:24,760 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:24,760 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:24,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:24,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:24,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:25,053 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 09:43:25,056 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:25,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 09:43:25,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 09:43:25,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 09:43:25,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 09:43:25,080 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 2 states. [2018-12-31 09:43:25,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:25,117 INFO L93 Difference]: Finished difference Result 244 states and 371 transitions. [2018-12-31 09:43:25,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 09:43:25,119 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-31 09:43:25,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:25,133 INFO L225 Difference]: With dead ends: 244 [2018-12-31 09:43:25,133 INFO L226 Difference]: Without dead ends: 121 [2018-12-31 09:43:25,137 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 09:43:25,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-12-31 09:43:25,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2018-12-31 09:43:25,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2018-12-31 09:43:25,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 177 transitions. [2018-12-31 09:43:25,190 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 177 transitions. Word has length 18 [2018-12-31 09:43:25,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:25,190 INFO L480 AbstractCegarLoop]: Abstraction has 121 states and 177 transitions. [2018-12-31 09:43:25,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 09:43:25,191 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 177 transitions. [2018-12-31 09:43:25,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-31 09:43:25,192 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:25,192 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 09:43:25,193 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:25,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:25,193 INFO L82 PathProgramCache]: Analyzing trace with hash -575343499, now seen corresponding path program 1 times [2018-12-31 09:43:25,194 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:25,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:25,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:25,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:25,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:25,342 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 09:43:25,343 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:25,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 09:43:25,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:25,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:25,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:25,346 INFO L87 Difference]: Start difference. First operand 121 states and 177 transitions. Second operand 3 states. [2018-12-31 09:43:25,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:25,373 INFO L93 Difference]: Finished difference Result 121 states and 177 transitions. [2018-12-31 09:43:25,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:25,374 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-12-31 09:43:25,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:25,375 INFO L225 Difference]: With dead ends: 121 [2018-12-31 09:43:25,375 INFO L226 Difference]: Without dead ends: 51 [2018-12-31 09:43:25,377 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 09:43:25,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-31 09:43:25,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-12-31 09:43:25,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-31 09:43:25,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2018-12-31 09:43:25,385 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2018-12-31 09:43:25,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:25,385 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2018-12-31 09:43:25,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:25,386 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2018-12-31 09:43:25,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-31 09:43:25,387 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:25,387 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 09:43:25,387 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:25,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:25,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1538545843, now seen corresponding path program 1 times [2018-12-31 09:43:25,388 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:25,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:25,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:25,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:25,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:25,662 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 09:43:25,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:25,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 09:43:25,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 09:43:25,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 09:43:25,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-31 09:43:25,666 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand 6 states. [2018-12-31 09:43:25,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:25,824 INFO L93 Difference]: Finished difference Result 166 states and 247 transitions. [2018-12-31 09:43:25,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 09:43:25,826 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-31 09:43:25,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:25,828 INFO L225 Difference]: With dead ends: 166 [2018-12-31 09:43:25,828 INFO L226 Difference]: Without dead ends: 121 [2018-12-31 09:43:25,829 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 09:43:25,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2018-12-31 09:43:25,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 72. [2018-12-31 09:43:25,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-31 09:43:25,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 106 transitions. [2018-12-31 09:43:25,843 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 106 transitions. Word has length 24 [2018-12-31 09:43:25,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:25,843 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 106 transitions. [2018-12-31 09:43:25,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 09:43:25,844 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2018-12-31 09:43:25,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-31 09:43:25,845 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:25,845 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 09:43:25,846 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:25,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:25,846 INFO L82 PathProgramCache]: Analyzing trace with hash -560581361, now seen corresponding path program 1 times [2018-12-31 09:43:25,846 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:25,846 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:25,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:25,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:25,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:25,962 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 09:43:25,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:25,963 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 09:43:25,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:25,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:25,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:25,964 INFO L87 Difference]: Start difference. First operand 72 states and 106 transitions. Second operand 3 states. [2018-12-31 09:43:26,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:26,094 INFO L93 Difference]: Finished difference Result 161 states and 239 transitions. [2018-12-31 09:43:26,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:26,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-12-31 09:43:26,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:26,097 INFO L225 Difference]: With dead ends: 161 [2018-12-31 09:43:26,097 INFO L226 Difference]: Without dead ends: 95 [2018-12-31 09:43:26,098 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 09:43:26,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-12-31 09:43:26,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2018-12-31 09:43:26,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-12-31 09:43:26,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2018-12-31 09:43:26,112 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 26 [2018-12-31 09:43:26,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:26,112 INFO L480 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2018-12-31 09:43:26,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:26,112 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2018-12-31 09:43:26,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-31 09:43:26,114 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:26,114 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 09:43:26,114 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:26,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:26,115 INFO L82 PathProgramCache]: Analyzing trace with hash 364943842, now seen corresponding path program 1 times [2018-12-31 09:43:26,115 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:26,115 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:26,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:26,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:26,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:26,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:26,339 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 09:43:26,339 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:26,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 09:43:26,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 09:43:26,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 09:43:26,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 09:43:26,341 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand 5 states. [2018-12-31 09:43:27,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:27,079 INFO L93 Difference]: Finished difference Result 482 states and 707 transitions. [2018-12-31 09:43:27,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-31 09:43:27,081 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-12-31 09:43:27,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:27,087 INFO L225 Difference]: With dead ends: 482 [2018-12-31 09:43:27,087 INFO L226 Difference]: Without dead ends: 395 [2018-12-31 09:43:27,088 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-31 09:43:27,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2018-12-31 09:43:27,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 158. [2018-12-31 09:43:27,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-12-31 09:43:27,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 221 transitions. [2018-12-31 09:43:27,146 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 221 transitions. Word has length 27 [2018-12-31 09:43:27,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:27,146 INFO L480 AbstractCegarLoop]: Abstraction has 158 states and 221 transitions. [2018-12-31 09:43:27,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 09:43:27,147 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 221 transitions. [2018-12-31 09:43:27,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-31 09:43:27,152 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:27,152 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 09:43:27,154 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:27,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:27,155 INFO L82 PathProgramCache]: Analyzing trace with hash -1335319900, now seen corresponding path program 1 times [2018-12-31 09:43:27,155 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:27,155 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:27,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:27,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:27,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 09:43:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 09:43:27,880 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 09:43:28,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 09:43:28 BoogieIcfgContainer [2018-12-31 09:43:28,001 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 09:43:28,002 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 09:43:28,002 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 09:43:28,002 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 09:43:28,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:24" (3/4) ... [2018-12-31 09:43:28,006 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 09:43:28,141 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 09:43:28,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 09:43:28,143 INFO L168 Benchmark]: Toolchain (without parser) took 5839.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 952.7 MB in the beginning and 774.3 MB in the end (delta: 178.4 MB). Peak memory consumption was 289.0 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:28,144 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 09:43:28,145 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -136.7 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:28,146 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.34 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 09:43:28,146 INFO L168 Benchmark]: Boogie Preprocessor took 52.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:28,149 INFO L168 Benchmark]: RCFGBuilder took 1419.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.8 MB). Peak memory consumption was 59.8 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:28,150 INFO L168 Benchmark]: TraceAbstraction took 3365.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 781.2 MB in the end (delta: 241.5 MB). Peak memory consumption was 241.5 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:28,150 INFO L168 Benchmark]: Witness Printer took 140.31 ms. Allocated memory is still 1.1 GB. Free memory was 781.2 MB in the beginning and 774.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:28,156 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 777.48 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -136.7 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.34 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1419.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 59.8 MB). Peak memory consumption was 59.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3365.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 781.2 MB in the end (delta: 241.5 MB). Peak memory consumption was 241.5 MB. Max. memory is 11.5 GB. * Witness Printer took 140.31 ms. Allocated memory is still 1.1 GB. Free memory was 781.2 MB in the beginning and 774.3 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 977]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L225] int pumpRunning = 0; [L226] int systemActive = 1; [L473] int cleanupTimeShifts = 4; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L549] int retValue_acc ; [L550] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L556] tmp = valid_product() [L558] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L155] int splverifierCounter ; [L156] int tmp ; [L157] int tmp___0 ; [L158] int tmp___1 ; [L159] int tmp___2 ; [L162] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L164] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L166] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L172] tmp = __VERIFIER_nondet_int() [L174] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L182] tmp___0 = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L192] tmp___2 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___2)) [L198] tmp___1 = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L426] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L433] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L233] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L240] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L440] int tmp ; [L441] int tmp___0 ; [L442] int tmp___1 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L446] tmp = isMethaneLevelCritical() [L448] COND FALSE !(\read(tmp)) [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L452] tmp___0 = getWaterLevel() [L454] COND TRUE tmp___0 == 2 [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L456] tmp___1 = isPumpRunning() [L458] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L977] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 125 locations, 3 error locations. UNSAFE Result, 3.2s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 517 SDtfs, 655 SDslu, 669 SDs, 0 SdLazy, 81 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, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred 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, 288 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.7s 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...