./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec3_product56_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_product56_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 525453629ce87b69ed1d4100e13fdb9e0c8a872a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:43:25,834 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 09:43:25,837 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 09:43:25,853 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 09:43:25,855 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 09:43:25,856 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 09:43:25,859 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 09:43:25,862 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 09:43:25,866 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 09:43:25,869 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 09:43:25,871 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 09:43:25,872 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 09:43:25,873 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 09:43:25,873 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 09:43:25,877 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 09:43:25,884 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 09:43:25,885 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 09:43:25,888 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 09:43:25,893 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 09:43:25,896 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 09:43:25,897 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 09:43:25,899 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 09:43:25,905 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 09:43:25,905 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 09:43:25,905 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 09:43:25,906 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 09:43:25,907 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 09:43:25,908 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 09:43:25,909 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 09:43:25,910 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 09:43:25,910 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 09:43:25,911 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 09:43:25,911 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 09:43:25,911 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 09:43:25,913 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 09:43:25,913 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 09:43:25,914 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 09:43:25,939 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 09:43:25,942 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 09:43:25,943 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 09:43:25,945 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 09:43:25,946 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 09:43:25,946 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 09:43:25,946 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 09:43:25,946 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 09:43:25,946 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 09:43:25,947 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 09:43:25,947 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 09:43:25,947 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 09:43:25,947 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 09:43:25,947 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 09:43:25,947 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 09:43:25,948 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 09:43:25,948 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 09:43:25,948 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 09:43:25,948 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 09:43:25,948 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 09:43:25,949 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 09:43:25,949 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 09:43:25,949 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 09:43:25,949 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 09:43:25,949 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 09:43:25,949 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 09:43:25,951 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 09:43:25,951 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 09:43:25,952 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 -> 525453629ce87b69ed1d4100e13fdb9e0c8a872a [2018-12-31 09:43:26,023 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 09:43:26,037 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 09:43:26,041 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 09:43:26,042 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 09:43:26,043 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 09:43:26,044 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product56_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:26,105 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f6d57d55/48a98290033b4c16b02ab16ab5f2f947/FLAG5444c9385 [2018-12-31 09:43:26,675 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 09:43:26,676 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product56_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:26,702 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f6d57d55/48a98290033b4c16b02ab16ab5f2f947/FLAG5444c9385 [2018-12-31 09:43:26,906 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f6d57d55/48a98290033b4c16b02ab16ab5f2f947 [2018-12-31 09:43:26,910 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 09:43:26,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 09:43:26,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 09:43:26,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 09:43:26,918 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 09:43:26,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 09:43:26" (1/1) ... [2018-12-31 09:43:26,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a65237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:26, skipping insertion in model container [2018-12-31 09:43:26,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 09:43:26" (1/1) ... [2018-12-31 09:43:26,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 09:43:26,996 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 09:43:27,383 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 09:43:27,417 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 09:43:27,590 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 09:43:27,638 INFO L195 MainTranslator]: Completed translation [2018-12-31 09:43:27,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:27 WrapperNode [2018-12-31 09:43:27,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 09:43:27,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 09:43:27,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 09:43:27,640 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 09:43:27,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:27" (1/1) ... [2018-12-31 09:43:27,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:27" (1/1) ... [2018-12-31 09:43:27,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 09:43:27,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 09:43:27,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 09:43:27,727 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 09:43:27,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:27" (1/1) ... [2018-12-31 09:43:27,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:27" (1/1) ... [2018-12-31 09:43:27,757 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:27" (1/1) ... [2018-12-31 09:43:27,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:27" (1/1) ... [2018-12-31 09:43:27,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:27" (1/1) ... [2018-12-31 09:43:27,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:27" (1/1) ... [2018-12-31 09:43:27,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:27" (1/1) ... [2018-12-31 09:43:27,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 09:43:27,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 09:43:27,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 09:43:27,829 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 09:43:27,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:27" (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 09:43:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 09:43:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-31 09:43:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 09:43:27,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 09:43:30,144 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 09:43:30,144 INFO L280 CfgBuilder]: Removed 288 assue(true) statements. [2018-12-31 09:43:30,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:30 BoogieIcfgContainer [2018-12-31 09:43:30,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 09:43:30,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 09:43:30,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 09:43:30,149 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 09:43:30,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 09:43:26" (1/3) ... [2018-12-31 09:43:30,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd93508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 09:43:30, skipping insertion in model container [2018-12-31 09:43:30,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:43:27" (2/3) ... [2018-12-31 09:43:30,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd93508 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 09:43:30, skipping insertion in model container [2018-12-31 09:43:30,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:30" (3/3) ... [2018-12-31 09:43:30,153 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56_false-unreach-call_false-termination.cil.c [2018-12-31 09:43:30,164 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 09:43:30,173 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-31 09:43:30,189 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-31 09:43:30,222 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 09:43:30,222 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 09:43:30,223 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 09:43:30,223 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 09:43:30,223 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 09:43:30,223 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 09:43:30,223 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 09:43:30,223 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 09:43:30,224 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 09:43:30,244 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2018-12-31 09:43:30,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-31 09:43:30,252 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:30,254 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 09:43:30,256 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:30,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:30,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1618500051, now seen corresponding path program 1 times [2018-12-31 09:43:30,263 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:30,264 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:30,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:30,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:30,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:30,549 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 09:43:30,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:30,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 09:43:30,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 09:43:30,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 09:43:30,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 09:43:30,571 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 2 states. [2018-12-31 09:43:30,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:30,635 INFO L93 Difference]: Finished difference Result 388 states and 593 transitions. [2018-12-31 09:43:30,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 09:43:30,638 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-31 09:43:30,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:30,659 INFO L225 Difference]: With dead ends: 388 [2018-12-31 09:43:30,659 INFO L226 Difference]: Without dead ends: 193 [2018-12-31 09:43:30,664 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 09:43:30,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2018-12-31 09:43:30,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2018-12-31 09:43:30,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-12-31 09:43:30,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 288 transitions. [2018-12-31 09:43:30,738 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 288 transitions. Word has length 18 [2018-12-31 09:43:30,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:30,739 INFO L480 AbstractCegarLoop]: Abstraction has 193 states and 288 transitions. [2018-12-31 09:43:30,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 09:43:30,740 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 288 transitions. [2018-12-31 09:43:30,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-31 09:43:30,742 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:30,742 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 09:43:30,743 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:30,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:30,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1765436492, now seen corresponding path program 1 times [2018-12-31 09:43:30,743 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:30,743 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:30,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:30,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:30,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:30,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:30,956 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 09:43:30,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:30,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 09:43:30,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:30,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:30,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:30,962 INFO L87 Difference]: Start difference. First operand 193 states and 288 transitions. Second operand 3 states. [2018-12-31 09:43:31,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:31,010 INFO L93 Difference]: Finished difference Result 193 states and 288 transitions. [2018-12-31 09:43:31,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:31,012 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-12-31 09:43:31,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:31,013 INFO L225 Difference]: With dead ends: 193 [2018-12-31 09:43:31,013 INFO L226 Difference]: Without dead ends: 75 [2018-12-31 09:43:31,017 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 09:43:31,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-12-31 09:43:31,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2018-12-31 09:43:31,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-12-31 09:43:31,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 111 transitions. [2018-12-31 09:43:31,034 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 111 transitions. Word has length 19 [2018-12-31 09:43:31,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:31,035 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 111 transitions. [2018-12-31 09:43:31,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:31,035 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 111 transitions. [2018-12-31 09:43:31,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-31 09:43:31,036 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:31,036 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 09:43:31,036 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:31,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:31,039 INFO L82 PathProgramCache]: Analyzing trace with hash 134472408, now seen corresponding path program 1 times [2018-12-31 09:43:31,039 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:31,039 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:31,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:31,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:31,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:31,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:31,196 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 09:43:31,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:31,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-31 09:43:31,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 09:43:31,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 09:43:31,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 09:43:31,198 INFO L87 Difference]: Start difference. First operand 75 states and 111 transitions. Second operand 5 states. [2018-12-31 09:43:31,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:31,409 INFO L93 Difference]: Finished difference Result 169 states and 253 transitions. [2018-12-31 09:43:31,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 09:43:31,415 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-12-31 09:43:31,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:31,416 INFO L225 Difference]: With dead ends: 169 [2018-12-31 09:43:31,417 INFO L226 Difference]: Without dead ends: 100 [2018-12-31 09:43:31,417 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-31 09:43:31,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-12-31 09:43:31,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2018-12-31 09:43:31,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-12-31 09:43:31,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 143 transitions. [2018-12-31 09:43:31,430 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 143 transitions. Word has length 24 [2018-12-31 09:43:31,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:31,430 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 143 transitions. [2018-12-31 09:43:31,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 09:43:31,430 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 143 transitions. [2018-12-31 09:43:31,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-31 09:43:31,432 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:31,432 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 09:43:31,432 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:31,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:31,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1119046690, now seen corresponding path program 1 times [2018-12-31 09:43:31,433 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:31,433 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:31,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:31,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:31,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:31,536 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 09:43:31,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:31,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 09:43:31,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 09:43:31,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 09:43:31,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 09:43:31,538 INFO L87 Difference]: Start difference. First operand 96 states and 143 transitions. Second operand 3 states. [2018-12-31 09:43:31,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:31,886 INFO L93 Difference]: Finished difference Result 197 states and 295 transitions. [2018-12-31 09:43:31,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 09:43:31,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-12-31 09:43:31,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:31,890 INFO L225 Difference]: With dead ends: 197 [2018-12-31 09:43:31,890 INFO L226 Difference]: Without dead ends: 107 [2018-12-31 09:43:31,891 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 09:43:31,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2018-12-31 09:43:31,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2018-12-31 09:43:31,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-12-31 09:43:31,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 150 transitions. [2018-12-31 09:43:31,906 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 150 transitions. Word has length 27 [2018-12-31 09:43:31,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:31,906 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 150 transitions. [2018-12-31 09:43:31,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 09:43:31,906 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 150 transitions. [2018-12-31 09:43:31,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-31 09:43:31,908 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:31,908 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 09:43:31,908 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:31,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:31,909 INFO L82 PathProgramCache]: Analyzing trace with hash -428868179, now seen corresponding path program 1 times [2018-12-31 09:43:31,909 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:31,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:31,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:31,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:31,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:43:32,053 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 09:43:32,054 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:43:32,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 09:43:32,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 09:43:32,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 09:43:32,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 09:43:32,055 INFO L87 Difference]: Start difference. First operand 105 states and 150 transitions. Second operand 5 states. [2018-12-31 09:43:32,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:43:32,889 INFO L93 Difference]: Finished difference Result 533 states and 778 transitions. [2018-12-31 09:43:32,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-31 09:43:32,890 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2018-12-31 09:43:32,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:43:32,894 INFO L225 Difference]: With dead ends: 533 [2018-12-31 09:43:32,894 INFO L226 Difference]: Without dead ends: 434 [2018-12-31 09:43:32,895 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 09:43:32,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-12-31 09:43:32,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 171. [2018-12-31 09:43:32,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-12-31 09:43:32,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 239 transitions. [2018-12-31 09:43:32,935 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 239 transitions. Word has length 27 [2018-12-31 09:43:32,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:43:32,935 INFO L480 AbstractCegarLoop]: Abstraction has 171 states and 239 transitions. [2018-12-31 09:43:32,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 09:43:32,936 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 239 transitions. [2018-12-31 09:43:32,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-31 09:43:32,940 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:43:32,940 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 09:43:32,941 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:43:32,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:43:32,941 INFO L82 PathProgramCache]: Analyzing trace with hash -2129131921, now seen corresponding path program 1 times [2018-12-31 09:43:32,941 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:43:32,942 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:43:32,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:32,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:43:32,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:43:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 09:43:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 09:43:33,956 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 09:43:34,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 09:43:34 BoogieIcfgContainer [2018-12-31 09:43:34,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 09:43:34,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 09:43:34,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 09:43:34,106 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 09:43:34,107 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:43:30" (3/4) ... [2018-12-31 09:43:34,110 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-31 09:43:34,244 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 09:43:34,245 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 09:43:34,246 INFO L168 Benchmark]: Toolchain (without parser) took 7334.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 220.7 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). Peak memory consumption was 51.8 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:34,247 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 09:43:34,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 726.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:34,248 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.61 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:34,249 INFO L168 Benchmark]: Boogie Preprocessor took 98.33 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:34,249 INFO L168 Benchmark]: RCFGBuilder took 2319.45 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: 72.3 MB). Peak memory consumption was 72.3 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:34,253 INFO L168 Benchmark]: TraceAbstraction took 3956.33 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -99.3 MB). Peak memory consumption was 236.0 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:34,253 INFO L168 Benchmark]: Witness Printer took 142.32 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: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-12-31 09:43:34,256 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 726.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.61 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 98.33 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2319.45 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: 72.3 MB). Peak memory consumption was 72.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3956.33 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.0 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -99.3 MB). Peak memory consumption was 236.0 MB. Max. memory is 11.5 GB. * Witness Printer took 142.32 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: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1013]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L694] int pumpRunning = 0; [L695] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L950] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L952] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L605] COND TRUE waterLevel < 2 [L606] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L986] tmp___1 = __VERIFIER_nondet_int() [L988] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L920] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L927] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L701] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L708] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L626] int retValue_acc ; [L629] retValue_acc = methaneLevelCritical [L630] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L562] tmp___0 = getWaterLevel() [L564] COND TRUE tmp___0 == 2 [L834] int retValue_acc ; [L837] retValue_acc = pumpRunning [L838] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] tmp___1 = isPumpRunning() [L568] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L1013] __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, 197 locations, 3 error locations. UNSAFE Result, 3.8s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 751 SDtfs, 885 SDslu, 457 SDs, 0 SdLazy, 75 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred in iteration=0, 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, 269 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 4928 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...