./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/interpolation2_true-unreach-call_true-termination.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/float-benchs/interpolation2_true-unreach-call_true-termination.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 3b34dfede3b17d4dbfd431f9690ffc98f8a52b8d .................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/float-benchs/interpolation2_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 3b34dfede3b17d4dbfd431f9690ffc98f8a52b8d ............................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 03:08:12,909 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 03:08:12,911 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 03:08:12,924 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 03:08:12,924 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 03:08:12,926 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 03:08:12,927 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 03:08:12,929 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 03:08:12,931 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 03:08:12,932 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 03:08:12,933 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 03:08:12,934 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 03:08:12,934 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 03:08:12,936 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 03:08:12,937 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 03:08:12,938 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 03:08:12,939 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 03:08:12,941 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 03:08:12,944 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 03:08:12,945 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 03:08:12,947 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 03:08:12,948 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 03:08:12,951 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 03:08:12,951 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 03:08:12,951 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 03:08:12,952 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 03:08:12,954 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 03:08:12,955 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 03:08:12,955 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 03:08:12,957 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 03:08:12,957 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 03:08:12,958 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 03:08:12,958 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 03:08:12,958 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 03:08:12,960 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 03:08:12,961 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 03:08:12,961 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 03:08:12,995 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 03:08:12,995 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 03:08:13,000 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 03:08:13,000 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 03:08:13,001 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 03:08:13,001 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 03:08:13,001 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 03:08:13,001 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 03:08:13,002 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 03:08:13,003 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 03:08:13,003 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 03:08:13,003 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 03:08:13,003 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 03:08:13,004 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 03:08:13,004 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 03:08:13,004 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 03:08:13,005 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 03:08:13,005 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 03:08:13,005 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 03:08:13,005 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 03:08:13,005 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 03:08:13,006 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:08:13,006 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 03:08:13,006 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 03:08:13,006 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 03:08:13,006 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 03:08:13,009 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 03:08:13,010 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 03:08:13,010 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 -> 3b34dfede3b17d4dbfd431f9690ffc98f8a52b8d [2018-12-31 03:08:13,075 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 03:08:13,089 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 03:08:13,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 03:08:13,094 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 03:08:13,095 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 03:08:13,096 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/interpolation2_true-unreach-call_true-termination.c [2018-12-31 03:08:13,156 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f300ab47c/b1b74885cf49411dbcdd595c3e17471a/FLAG6dbc34ba3 [2018-12-31 03:08:13,670 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 03:08:13,672 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/interpolation2_true-unreach-call_true-termination.c [2018-12-31 03:08:13,679 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f300ab47c/b1b74885cf49411dbcdd595c3e17471a/FLAG6dbc34ba3 [2018-12-31 03:08:13,959 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f300ab47c/b1b74885cf49411dbcdd595c3e17471a [2018-12-31 03:08:13,963 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 03:08:13,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 03:08:13,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 03:08:13,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 03:08:13,970 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 03:08:13,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:08:13" (1/1) ... [2018-12-31 03:08:13,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a03521f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:13, skipping insertion in model container [2018-12-31 03:08:13,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:08:13" (1/1) ... [2018-12-31 03:08:13,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 03:08:14,002 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 03:08:14,265 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:08:14,273 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 03:08:14,328 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:08:14,358 INFO L195 MainTranslator]: Completed translation [2018-12-31 03:08:14,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:14 WrapperNode [2018-12-31 03:08:14,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 03:08:14,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 03:08:14,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 03:08:14,360 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 03:08:14,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:14" (1/1) ... [2018-12-31 03:08:14,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:14" (1/1) ... [2018-12-31 03:08:14,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 03:08:14,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 03:08:14,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 03:08:14,420 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 03:08:14,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:14" (1/1) ... [2018-12-31 03:08:14,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:14" (1/1) ... [2018-12-31 03:08:14,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:14" (1/1) ... [2018-12-31 03:08:14,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:14" (1/1) ... [2018-12-31 03:08:14,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:14" (1/1) ... [2018-12-31 03:08:14,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:14" (1/1) ... [2018-12-31 03:08:14,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:14" (1/1) ... [2018-12-31 03:08:14,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 03:08:14,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 03:08:14,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 03:08:14,542 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 03:08:14,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:14" (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 03:08:14,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-31 03:08:14,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 03:08:14,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 03:08:14,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-31 03:08:14,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 03:08:14,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 03:08:14,994 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 03:08:14,994 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-31 03:08:14,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:08:14 BoogieIcfgContainer [2018-12-31 03:08:14,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 03:08:14,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 03:08:14,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 03:08:15,000 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 03:08:15,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 03:08:13" (1/3) ... [2018-12-31 03:08:15,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a379a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:08:15, skipping insertion in model container [2018-12-31 03:08:15,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:14" (2/3) ... [2018-12-31 03:08:15,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23a379a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:08:15, skipping insertion in model container [2018-12-31 03:08:15,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:08:14" (3/3) ... [2018-12-31 03:08:15,005 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation2_true-unreach-call_true-termination.c [2018-12-31 03:08:15,018 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 03:08:15,027 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 03:08:15,047 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 03:08:15,081 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 03:08:15,082 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 03:08:15,082 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 03:08:15,082 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 03:08:15,082 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 03:08:15,082 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 03:08:15,082 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 03:08:15,083 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 03:08:15,083 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 03:08:15,105 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2018-12-31 03:08:15,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-31 03:08:15,112 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:08:15,113 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:08:15,115 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:08:15,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:08:15,121 INFO L82 PathProgramCache]: Analyzing trace with hash 119812811, now seen corresponding path program 1 times [2018-12-31 03:08:15,122 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 03:08:15,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 03:08:15,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:08:15,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:08:15,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:08:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:08:15,266 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 03:08:15,269 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:08:15,270 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 03:08:15,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 03:08:15,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 03:08:15,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 03:08:15,294 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2018-12-31 03:08:15,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:08:15,309 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2018-12-31 03:08:15,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 03:08:15,311 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2018-12-31 03:08:15,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:08:15,321 INFO L225 Difference]: With dead ends: 23 [2018-12-31 03:08:15,321 INFO L226 Difference]: Without dead ends: 11 [2018-12-31 03:08:15,325 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 03:08:15,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-12-31 03:08:15,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-12-31 03:08:15,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-31 03:08:15,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2018-12-31 03:08:15,359 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2018-12-31 03:08:15,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:08:15,359 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-12-31 03:08:15,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 03:08:15,359 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-12-31 03:08:15,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-31 03:08:15,360 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:08:15,360 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:08:15,360 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:08:15,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:08:15,361 INFO L82 PathProgramCache]: Analyzing trace with hash 119485110, now seen corresponding path program 1 times [2018-12-31 03:08:15,361 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 03:08:15,361 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 03:08:15,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:08:15,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:08:15,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:08:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:08:15,461 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 03:08:15,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:08:15,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 03:08:15,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 03:08:15,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 03:08:15,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 03:08:15,464 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2018-12-31 03:08:15,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:08:15,543 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2018-12-31 03:08:15,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 03:08:15,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-31 03:08:15,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:08:15,545 INFO L225 Difference]: With dead ends: 22 [2018-12-31 03:08:15,545 INFO L226 Difference]: Without dead ends: 18 [2018-12-31 03:08:15,547 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 03:08:15,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-12-31 03:08:15,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 12. [2018-12-31 03:08:15,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-31 03:08:15,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2018-12-31 03:08:15,552 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2018-12-31 03:08:15,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:08:15,552 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2018-12-31 03:08:15,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 03:08:15,552 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2018-12-31 03:08:15,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-31 03:08:15,554 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:08:15,554 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:08:15,554 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:08:15,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:08:15,555 INFO L82 PathProgramCache]: Analyzing trace with hash -589323084, now seen corresponding path program 1 times [2018-12-31 03:08:15,556 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 03:08:15,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 03:08:15,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:08:15,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:08:15,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:08:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 03:08:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 03:08:15,663 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 03:08:15,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 03:08:15 BoogieIcfgContainer [2018-12-31 03:08:15,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 03:08:15,694 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 03:08:15,694 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 03:08:15,694 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 03:08:15,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:08:14" (3/4) ... [2018-12-31 03:08:15,699 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 03:08:15,699 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 03:08:15,700 INFO L168 Benchmark]: Toolchain (without parser) took 1737.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -125.7 MB). Peak memory consumption was 1.2 MB. Max. memory is 11.5 GB. [2018-12-31 03:08:15,703 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:08:15,703 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.03 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 03:08:15,704 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.10 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 03:08:15,705 INFO L168 Benchmark]: Boogie Preprocessor took 122.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -188.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-31 03:08:15,706 INFO L168 Benchmark]: RCFGBuilder took 452.68 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: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2018-12-31 03:08:15,707 INFO L168 Benchmark]: TraceAbstraction took 696.84 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-12-31 03:08:15,708 INFO L168 Benchmark]: Witness Printer took 5.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:08:15,714 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 394.03 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.10 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 122.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -188.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 452.68 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: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 696.84 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 23, overapproximation of to_real at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 21. Possible FailurePath: [L8] int i; [L9] float z, t; [L10] float min[] = { 5, 10, 12, 30, 150 }; [L11] float max[] = { 10, 12, 30, 150, 300 }; [L12] float org[] = { 1, 5, -10, 30, 20 }; [L13] float slope[] = { 4, -15, 40, -10, 0 }; [L15] t = __VERIFIER_nondet_float() [L16] EXPR min[0] [L16] t >= min[0] && t <= max[sizeof(max) / sizeof(max[0]) - 1] [L16] EXPR max[sizeof(max) / sizeof(max[0]) - 1] [L16] t >= min[0] && t <= max[sizeof(max) / sizeof(max[0]) - 1] [L18] i = 0 [L18] COND TRUE i < sizeof(min) / sizeof(min[0]) [L19] EXPR max[i] [L19] COND TRUE t <= max[i] [L21] EXPR org[i] [L21] EXPR slope[i] [L21] EXPR min[i] [L21] EXPR max[i] [L21] EXPR min[i] [L21] z = org[i] + slope[i] * (t - min[i]) / (max[i] - min[i]) [L4] COND TRUE !(cond) [L4] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 6 SDslu, 8 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-2e94e6a [2018-12-31 03:08:18,253 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 03:08:18,255 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 03:08:18,267 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 03:08:18,268 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 03:08:18,269 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 03:08:18,271 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 03:08:18,273 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 03:08:18,274 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 03:08:18,276 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 03:08:18,277 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 03:08:18,277 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 03:08:18,278 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 03:08:18,279 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 03:08:18,281 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 03:08:18,282 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 03:08:18,283 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 03:08:18,285 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 03:08:18,288 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 03:08:18,289 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 03:08:18,291 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 03:08:18,292 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 03:08:18,295 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 03:08:18,296 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 03:08:18,296 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 03:08:18,297 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 03:08:18,299 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 03:08:18,300 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 03:08:18,301 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 03:08:18,302 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 03:08:18,302 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 03:08:18,303 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 03:08:18,303 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 03:08:18,304 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 03:08:18,305 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 03:08:18,306 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 03:08:18,306 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 03:08:18,323 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 03:08:18,323 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 03:08:18,324 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 03:08:18,324 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 03:08:18,325 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 03:08:18,325 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 03:08:18,326 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 03:08:18,326 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 03:08:18,326 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 03:08:18,326 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 03:08:18,326 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 03:08:18,326 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 03:08:18,327 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 03:08:18,327 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 03:08:18,327 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 03:08:18,327 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 03:08:18,327 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 03:08:18,327 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 03:08:18,329 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 03:08:18,329 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 03:08:18,329 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 03:08:18,330 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 03:08:18,330 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:08:18,330 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 03:08:18,330 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 03:08:18,330 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 03:08:18,331 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 03:08:18,332 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 03:08:18,332 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 03:08:18,332 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 03:08:18,332 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 -> 3b34dfede3b17d4dbfd431f9690ffc98f8a52b8d [2018-12-31 03:08:18,372 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 03:08:18,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 03:08:18,389 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 03:08:18,391 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 03:08:18,391 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 03:08:18,393 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/interpolation2_true-unreach-call_true-termination.c [2018-12-31 03:08:18,457 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42900ff3a/5bfb0c87f89a424185031010c13ad787/FLAG7864611e9 [2018-12-31 03:08:18,892 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 03:08:18,893 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/interpolation2_true-unreach-call_true-termination.c [2018-12-31 03:08:18,901 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42900ff3a/5bfb0c87f89a424185031010c13ad787/FLAG7864611e9 [2018-12-31 03:08:19,254 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42900ff3a/5bfb0c87f89a424185031010c13ad787 [2018-12-31 03:08:19,258 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 03:08:19,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 03:08:19,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 03:08:19,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 03:08:19,266 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 03:08:19,267 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:08:19" (1/1) ... [2018-12-31 03:08:19,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a30119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:19, skipping insertion in model container [2018-12-31 03:08:19,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:08:19" (1/1) ... [2018-12-31 03:08:19,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 03:08:19,300 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 03:08:19,546 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:08:19,561 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 03:08:19,620 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:08:19,654 INFO L195 MainTranslator]: Completed translation [2018-12-31 03:08:19,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:19 WrapperNode [2018-12-31 03:08:19,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 03:08:19,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 03:08:19,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 03:08:19,656 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 03:08:19,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:19" (1/1) ... [2018-12-31 03:08:19,685 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:19" (1/1) ... [2018-12-31 03:08:19,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 03:08:19,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 03:08:19,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 03:08:19,797 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 03:08:19,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:19" (1/1) ... [2018-12-31 03:08:19,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:19" (1/1) ... [2018-12-31 03:08:19,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:19" (1/1) ... [2018-12-31 03:08:19,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:19" (1/1) ... [2018-12-31 03:08:19,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:19" (1/1) ... [2018-12-31 03:08:19,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:19" (1/1) ... [2018-12-31 03:08:19,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:19" (1/1) ... [2018-12-31 03:08:19,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 03:08:19,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 03:08:19,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 03:08:19,842 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 03:08:19,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:19" (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 03:08:19,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-12-31 03:08:19,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 03:08:19,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 03:08:19,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 03:08:19,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-31 03:08:19,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 03:08:20,259 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 03:08:22,549 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 03:08:22,550 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-31 03:08:22,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:08:22 BoogieIcfgContainer [2018-12-31 03:08:22,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 03:08:22,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 03:08:22,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 03:08:22,555 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 03:08:22,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 03:08:19" (1/3) ... [2018-12-31 03:08:22,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142ca2d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:08:22, skipping insertion in model container [2018-12-31 03:08:22,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:08:19" (2/3) ... [2018-12-31 03:08:22,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142ca2d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:08:22, skipping insertion in model container [2018-12-31 03:08:22,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:08:22" (3/3) ... [2018-12-31 03:08:22,562 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation2_true-unreach-call_true-termination.c [2018-12-31 03:08:22,573 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 03:08:22,582 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 03:08:22,601 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 03:08:22,635 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 03:08:22,636 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 03:08:22,636 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 03:08:22,637 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 03:08:22,637 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 03:08:22,637 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 03:08:22,637 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 03:08:22,637 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 03:08:22,638 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 03:08:22,653 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2018-12-31 03:08:22,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-31 03:08:22,660 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:08:22,661 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:08:22,664 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:08:22,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:08:22,670 INFO L82 PathProgramCache]: Analyzing trace with hash 119812811, now seen corresponding path program 1 times [2018-12-31 03:08:22,676 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:08:22,677 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 03:08:22,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:08:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:08:23,196 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:08:23,209 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 03:08:23,210 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:08:23,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:08:23,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 03:08:23,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 03:08:23,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 03:08:23,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 03:08:23,256 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2018-12-31 03:08:23,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:08:23,274 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2018-12-31 03:08:23,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 03:08:23,275 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2018-12-31 03:08:23,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:08:23,285 INFO L225 Difference]: With dead ends: 23 [2018-12-31 03:08:23,285 INFO L226 Difference]: Without dead ends: 11 [2018-12-31 03:08:23,288 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 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 03:08:23,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-12-31 03:08:23,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-12-31 03:08:23,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-31 03:08:23,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2018-12-31 03:08:23,321 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2018-12-31 03:08:23,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:08:23,321 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-12-31 03:08:23,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 03:08:23,322 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-12-31 03:08:23,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-31 03:08:23,322 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:08:23,322 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:08:23,323 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:08:23,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:08:23,323 INFO L82 PathProgramCache]: Analyzing trace with hash 119485110, now seen corresponding path program 1 times [2018-12-31 03:08:23,324 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:08:23,324 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-31 03:08:23,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:08:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:08:23,800 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:08:23,821 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 03:08:23,822 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:08:23,840 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:08:23,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 03:08:23,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 03:08:23,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 03:08:23,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 03:08:23,843 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2018-12-31 03:08:28,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:08:28,265 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2018-12-31 03:08:28,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 03:08:28,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-31 03:08:28,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:08:28,335 INFO L225 Difference]: With dead ends: 22 [2018-12-31 03:08:28,335 INFO L226 Difference]: Without dead ends: 18 [2018-12-31 03:08:28,336 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 03:08:28,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-12-31 03:08:28,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 12. [2018-12-31 03:08:28,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-31 03:08:28,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2018-12-31 03:08:28,341 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2018-12-31 03:08:28,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:08:28,341 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2018-12-31 03:08:28,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 03:08:28,341 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2018-12-31 03:08:28,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-31 03:08:28,342 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:08:28,342 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 03:08:28,342 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:08:28,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:08:28,344 INFO L82 PathProgramCache]: Analyzing trace with hash -589323084, now seen corresponding path program 1 times [2018-12-31 03:08:28,345 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:08:28,345 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-12-31 03:08:28,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-31 03:08:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:08:29,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:08:29,706 WARN L181 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2018-12-31 03:08:30,117 WARN L181 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2018-12-31 03:08:30,290 WARN L181 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2018-12-31 03:08:30,586 WARN L181 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-12-31 03:08:30,922 WARN L181 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2018-12-31 03:08:49,383 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= v_prenex_49 v_prenex_48) [2018-12-31 03:08:49,398 INFO L701 Elim1Store]: detected not equals via solver [2018-12-31 03:08:51,416 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= v_prenex_44 v_prenex_48) [2018-12-31 03:08:51,417 INFO L701 Elim1Store]: detected not equals via solver [2018-12-31 03:08:53,420 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= v_prenex_46 v_prenex_48) [2018-12-31 03:08:53,421 INFO L701 Elim1Store]: detected not equals via solver [2018-12-31 03:08:55,426 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= v_prenex_44 v_prenex_49) [2018-12-31 03:08:55,427 INFO L701 Elim1Store]: detected not equals via solver [2018-12-31 03:08:57,431 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= v_prenex_46 v_prenex_49) [2018-12-31 03:08:57,432 INFO L701 Elim1Store]: detected not equals via solver [2018-12-31 03:08:59,434 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= v_prenex_46 v_prenex_44) [2018-12-31 03:08:59,436 INFO L701 Elim1Store]: detected not equals via solver [2018-12-31 03:09:01,442 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_prenex_45 v_prenex_49) (select v_prenex_45 v_prenex_48)) [2018-12-31 03:09:01,443 INFO L701 Elim1Store]: detected not equals via solver [2018-12-31 03:09:03,447 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_prenex_45 v_prenex_44) (select v_prenex_45 v_prenex_48)) [2018-12-31 03:09:03,448 INFO L701 Elim1Store]: detected not equals via solver [2018-12-31 03:09:05,450 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_prenex_45 v_prenex_46) (select v_prenex_45 v_prenex_48)) [2018-12-31 03:09:05,451 INFO L701 Elim1Store]: detected not equals via solver [2018-12-31 03:09:07,456 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_prenex_45 v_prenex_49) (select v_prenex_45 v_prenex_44)) [2018-12-31 03:09:07,457 INFO L701 Elim1Store]: detected not equals via solver [2018-12-31 03:09:09,463 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_prenex_45 v_prenex_46) (select v_prenex_45 v_prenex_49)) [2018-12-31 03:09:09,464 INFO L701 Elim1Store]: detected not equals via solver [2018-12-31 03:09:11,468 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_prenex_45 v_prenex_46) (select v_prenex_45 v_prenex_44)) [2018-12-31 03:09:11,469 INFO L701 Elim1Store]: detected not equals via solver [2018-12-31 03:09:11,510 INFO L303 Elim1Store]: Index analysis took 26221 ms [2018-12-31 03:09:11,518 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 272 treesize of output 248 [2018-12-31 03:09:15,638 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (_ bv16 32) v_antiDerIndex_1) [2018-12-31 03:09:17,642 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= (_ bv16 32) v_antiDerIndex_1) [2018-12-31 03:09:19,646 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= v_antiDerIndex_2 v_antiDerIndex_1) [2018-12-31 03:09:21,666 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= v_antiDerIndex_2 v_antiDerIndex_1) [2018-12-31 03:09:23,670 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= v_antiDerIndex_3 v_antiDerIndex_1) [2018-12-31 03:09:25,672 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= v_antiDerIndex_3 v_antiDerIndex_1) [2018-12-31 03:09:27,676 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (_ bv0 32) v_antiDerIndex_1) [2018-12-31 03:09:29,679 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= (_ bv0 32) v_antiDerIndex_1) [2018-12-31 03:09:31,682 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (_ bv16 32) v_antiDerIndex_2) [2018-12-31 03:09:33,686 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= (_ bv16 32) v_antiDerIndex_2) [2018-12-31 03:09:35,688 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (_ bv16 32) v_antiDerIndex_3) [2018-12-31 03:09:37,692 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= (_ bv16 32) v_antiDerIndex_3) [2018-12-31 03:09:39,696 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= v_antiDerIndex_3 v_antiDerIndex_2) [2018-12-31 03:09:41,698 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= v_antiDerIndex_3 v_antiDerIndex_2) [2018-12-31 03:09:43,702 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (_ bv0 32) v_antiDerIndex_2) [2018-12-31 03:09:45,704 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= (_ bv0 32) v_antiDerIndex_2) [2018-12-31 03:09:47,706 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (_ bv0 32) v_antiDerIndex_3) [2018-12-31 03:09:49,709 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= (_ bv0 32) v_antiDerIndex_3) [2018-12-31 03:09:51,714 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimCell_1 (_ bv16 32)) (select v_arrayElimCell_1 v_antiDerIndex_1)) [2018-12-31 03:09:53,720 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select v_arrayElimCell_1 (_ bv16 32)) (select v_arrayElimCell_1 v_antiDerIndex_1)) [2018-12-31 03:09:55,724 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimCell_1 v_antiDerIndex_2) (select v_arrayElimCell_1 v_antiDerIndex_1)) [2018-12-31 03:09:57,727 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select v_arrayElimCell_1 v_antiDerIndex_2) (select v_arrayElimCell_1 v_antiDerIndex_1)) [2018-12-31 03:09:59,729 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimCell_1 v_antiDerIndex_3) (select v_arrayElimCell_1 v_antiDerIndex_1)) [2018-12-31 03:10:01,732 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select v_arrayElimCell_1 v_antiDerIndex_3) (select v_arrayElimCell_1 v_antiDerIndex_1)) [2018-12-31 03:10:03,739 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimCell_1 (_ bv0 32)) (select v_arrayElimCell_1 v_antiDerIndex_1)) [2018-12-31 03:10:05,745 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select v_arrayElimCell_1 (_ bv0 32)) (select v_arrayElimCell_1 v_antiDerIndex_1)) [2018-12-31 03:10:07,772 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimCell_1 v_antiDerIndex_2) (select v_arrayElimCell_1 (_ bv16 32))) [2018-12-31 03:10:09,776 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select v_arrayElimCell_1 v_antiDerIndex_2) (select v_arrayElimCell_1 (_ bv16 32))) [2018-12-31 03:10:11,782 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimCell_1 (_ bv16 32)) (select v_arrayElimCell_1 v_antiDerIndex_3)) [2018-12-31 03:10:13,787 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select v_arrayElimCell_1 (_ bv16 32)) (select v_arrayElimCell_1 v_antiDerIndex_3)) [2018-12-31 03:10:15,788 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimCell_1 (_ bv0 32)) (select v_arrayElimCell_1 (_ bv16 32))) [2018-12-31 03:10:15,789 INFO L701 Elim1Store]: detected not equals via solver [2018-12-31 03:10:17,793 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimCell_1 v_antiDerIndex_2) (select v_arrayElimCell_1 v_antiDerIndex_3)) [2018-12-31 03:10:19,797 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select v_arrayElimCell_1 v_antiDerIndex_2) (select v_arrayElimCell_1 v_antiDerIndex_3)) [2018-12-31 03:10:21,801 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimCell_1 v_antiDerIndex_2) (select v_arrayElimCell_1 (_ bv0 32))) [2018-12-31 03:10:23,807 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select v_arrayElimCell_1 v_antiDerIndex_2) (select v_arrayElimCell_1 (_ bv0 32))) [2018-12-31 03:10:25,810 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimCell_1 (_ bv0 32)) (select v_arrayElimCell_1 v_antiDerIndex_3)) [2018-12-31 03:10:27,815 WARN L687 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select v_arrayElimCell_1 (_ bv0 32)) (select v_arrayElimCell_1 v_antiDerIndex_3)) [2018-12-31 03:10:27,864 INFO L303 Elim1Store]: Index analysis took 76337 ms [2018-12-31 03:10:35,315 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 143 treesize of output 201 [2018-12-31 03:10:35,317 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-12-31 03:10:36,337 INFO L267 ElimStorePlain]: Start of recursive call 3: 640 dim-0 vars, End of recursive call: 640 dim-0 vars, and 137 xjuncts. [2018-12-31 03:10:47,828 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-12-31 03:10:48,030 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2018-12-31 03:10:48,032 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:221) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.push(DiffWrapperScript.java:93) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:737) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walkParam(SimplifyDDA.java:526) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:412) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:258) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:294) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 46 more [2018-12-31 03:10:48,037 INFO L168 Benchmark]: Toolchain (without parser) took 148778.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.3 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -118.7 MB). Peak memory consumption was 299.5 MB. Max. memory is 11.5 GB. [2018-12-31 03:10:48,038 INFO L168 Benchmark]: CDTParser took 0.19 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 03:10:48,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.04 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 03:10:48,040 INFO L168 Benchmark]: Boogie Procedure Inliner took 140.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -157.7 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-12-31 03:10:48,041 INFO L168 Benchmark]: Boogie Preprocessor took 44.59 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: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. [2018-12-31 03:10:48,042 INFO L168 Benchmark]: RCFGBuilder took 2708.54 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: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-12-31 03:10:48,043 INFO L168 Benchmark]: TraceAbstraction took 145484.33 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 150.0 kB). Peak memory consumption was 313.5 MB. Max. memory is 11.5 GB. [2018-12-31 03:10:48,054 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 394.04 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 140.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.9 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -157.7 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.59 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: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2708.54 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: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 145484.33 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 150.0 kB). Peak memory consumption was 313.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...