./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/interpolation_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d8b7d2eba04d5104e6e025f54a673b137a0acc7a ................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d8b7d2eba04d5104e6e025f54a673b137a0acc7a .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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. No stderr output. --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 07:03:06,416 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:03:06,417 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:03:06,425 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:03:06,426 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:03:06,426 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:03:06,427 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:03:06,428 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:03:06,430 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:03:06,430 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:03:06,431 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:03:06,431 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:03:06,432 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:03:06,432 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:03:06,433 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:03:06,434 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:03:06,435 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:03:06,436 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:03:06,437 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:03:06,438 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:03:06,439 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:03:06,440 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:03:06,442 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:03:06,442 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:03:06,442 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:03:06,443 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:03:06,444 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:03:06,445 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:03:06,445 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:03:06,446 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:03:06,446 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:03:06,447 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:03:06,447 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:03:06,447 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:03:06,448 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:03:06,448 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:03:06,448 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 07:03:06,455 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:03:06,455 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:03:06,456 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:03:06,456 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 07:03:06,456 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 07:03:06,456 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 07:03:06,456 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 07:03:06,457 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 07:03:06,457 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 07:03:06,457 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 07:03:06,457 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 07:03:06,458 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:03:06,458 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:03:06,458 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:03:06,458 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:03:06,458 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:03:06,458 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:03:06,459 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:03:06,459 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:03:06,459 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:03:06,459 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:03:06,459 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:03:06,459 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:03:06,459 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:03:06,460 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:03:06,460 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:03:06,460 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:03:06,460 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:03:06,460 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:03:06,460 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:03:06,461 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 07:03:06,461 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:03:06,461 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:03:06,461 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 07:03:06,461 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan 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 -> Taipan 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 -> d8b7d2eba04d5104e6e025f54a673b137a0acc7a [2018-11-10 07:03:06,485 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:03:06,495 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:03:06,497 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:03:06,499 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:03:06,499 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:03:06,500 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/interpolation_true-unreach-call_true-termination.c [2018-11-10 07:03:06,551 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/data/06c3d9b33/195ebb4c99c54cf2918ed66e3d435944/FLAGa51c0e626 [2018-11-10 07:03:06,878 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:03:06,878 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/sv-benchmarks/c/float-benchs/interpolation_true-unreach-call_true-termination.c [2018-11-10 07:03:06,882 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/data/06c3d9b33/195ebb4c99c54cf2918ed66e3d435944/FLAGa51c0e626 [2018-11-10 07:03:06,892 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/data/06c3d9b33/195ebb4c99c54cf2918ed66e3d435944 [2018-11-10 07:03:06,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:03:06,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:03:06,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:03:06,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:03:06,897 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:03:06,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:03:06" (1/1) ... [2018-11-10 07:03:06,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e93ada0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:06, skipping insertion in model container [2018-11-10 07:03:06,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:03:06" (1/1) ... [2018-11-10 07:03:06,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:03:06,917 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:03:07,017 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:03:07,020 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:03:07,034 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:03:07,045 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:03:07,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:07 WrapperNode [2018-11-10 07:03:07,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:03:07,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:03:07,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:03:07,046 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:03:07,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:07" (1/1) ... [2018-11-10 07:03:07,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:07" (1/1) ... [2018-11-10 07:03:07,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:03:07,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:03:07,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:03:07,074 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:03:07,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:07" (1/1) ... [2018-11-10 07:03:07,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:07" (1/1) ... [2018-11-10 07:03:07,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:07" (1/1) ... [2018-11-10 07:03:07,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:07" (1/1) ... [2018-11-10 07:03:07,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:07" (1/1) ... [2018-11-10 07:03:07,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:07" (1/1) ... [2018-11-10 07:03:07,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:07" (1/1) ... [2018-11-10 07:03:07,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:03:07,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:03:07,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:03:07,096 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:03:07,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/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 [2018-11-10 07:03:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:03:07,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:03:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:03:07,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:03:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:03:07,187 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:03:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 07:03:07,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 07:03:07,399 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:03:07,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:03:07 BoogieIcfgContainer [2018-11-10 07:03:07,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:03:07,400 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:03:07,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:03:07,403 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:03:07,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:03:06" (1/3) ... [2018-11-10 07:03:07,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78fd1049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:03:07, skipping insertion in model container [2018-11-10 07:03:07,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:07" (2/3) ... [2018-11-10 07:03:07,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78fd1049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:03:07, skipping insertion in model container [2018-11-10 07:03:07,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:03:07" (3/3) ... [2018-11-10 07:03:07,407 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation_true-unreach-call_true-termination.c [2018-11-10 07:03:07,416 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:03:07,422 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:03:07,436 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:03:07,464 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:03:07,464 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:03:07,464 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:03:07,465 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:03:07,465 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:03:07,465 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:03:07,465 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:03:07,465 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:03:07,480 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-10 07:03:07,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 07:03:07,485 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:03:07,486 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:03:07,487 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:03:07,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:03:07,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1517004206, now seen corresponding path program 1 times [2018-11-10 07:03:07,493 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 07:03:07,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:03:07,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:03:07,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:03:07,532 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 07:03:07,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:03:07,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:03:07,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:03:07,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:03:07,618 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 07:03:07,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 07:03:07,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 07:03:07,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:03:07,632 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2018-11-10 07:03:07,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:03:07,646 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2018-11-10 07:03:07,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 07:03:07,647 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-10 07:03:07,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:03:07,652 INFO L225 Difference]: With dead ends: 38 [2018-11-10 07:03:07,652 INFO L226 Difference]: Without dead ends: 18 [2018-11-10 07:03:07,655 INFO L605 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 [2018-11-10 07:03:07,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-10 07:03:07,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-10 07:03:07,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-10 07:03:07,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-10 07:03:07,677 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 14 [2018-11-10 07:03:07,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:03:07,677 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-10 07:03:07,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 07:03:07,677 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-10 07:03:07,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 07:03:07,678 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:03:07,678 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:03:07,678 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:03:07,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:03:07,679 INFO L82 PathProgramCache]: Analyzing trace with hash -146941417, now seen corresponding path program 1 times [2018-11-10 07:03:07,679 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 07:03:07,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:03:07,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:03:07,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:03:07,680 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 07:03:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:03:07,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:03:07,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:03:07,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 07:03:07,743 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 07:03:07,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 07:03:07,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 07:03:07,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 07:03:07,745 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2018-11-10 07:03:07,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:03:07,769 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-11-10 07:03:07,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 07:03:07,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-10 07:03:07,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:03:07,771 INFO L225 Difference]: With dead ends: 30 [2018-11-10 07:03:07,771 INFO L226 Difference]: Without dead ends: 24 [2018-11-10 07:03:07,772 INFO L605 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 [2018-11-10 07:03:07,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-10 07:03:07,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2018-11-10 07:03:07,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 07:03:07,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-10 07:03:07,776 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 15 [2018-11-10 07:03:07,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:03:07,776 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-10 07:03:07,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 07:03:07,776 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-10 07:03:07,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 07:03:07,777 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:03:07,777 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:03:07,777 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:03:07,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:03:07,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1268654585, now seen corresponding path program 1 times [2018-11-10 07:03:07,777 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 07:03:07,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:03:07,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:03:07,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:03:07,778 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 07:03:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:03:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:03:07,830 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 07:03:07,838 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:03:07,839 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:03:07,839 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:03:07,839 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:03:07,840 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:03:07,840 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:03:07,840 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:03:07,840 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:03:07,841 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:03:07,841 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:03:07,841 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:03:07,841 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:03:07,842 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:03:07,842 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 07:03:07,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:03:07 BoogieIcfgContainer [2018-11-10 07:03:07,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:03:07,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:03:07,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:03:07,855 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:03:07,856 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:03:07" (3/4) ... [2018-11-10 07:03:07,859 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 07:03:07,859 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:03:07,860 INFO L168 Benchmark]: Toolchain (without parser) took 965.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -125.4 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2018-11-10 07:03:07,861 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:03:07,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.48 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:03:07,862 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.84 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:03:07,863 INFO L168 Benchmark]: Boogie Preprocessor took 21.86 ms. Allocated memory is still 1.0 GB. Free memory was 946.8 MB in the beginning and 944.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:03:07,863 INFO L168 Benchmark]: RCFGBuilder took 303.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:03:07,864 INFO L168 Benchmark]: TraceAbstraction took 454.31 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: 42.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 11.5 GB. [2018-11-10 07:03:07,864 INFO L168 Benchmark]: Witness Printer took 4.31 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. [2018-11-10 07:03:07,867 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 150.48 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 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 27.84 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.86 ms. Allocated memory is still 1.0 GB. Free memory was 946.8 MB in the beginning and 944.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 303.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.2 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 454.31 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: 42.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.31 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * 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 17, overapproximation of to_real at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 19. Possible FailurePath: [L8] int i; [L9] float z, t; [L10] CALL float min[] = { 5, 10, 12, 30, 150 }; [L10] RET float min[] = { 5, 10, 12, 30, 150 }; [L10] RET float min[] = { 5, 10, 12, 30, 150 }; [L10] RET float min[] = { 5, 10, 12, 30, 150 }; [L10] RET float min[] = { 5, 10, 12, 30, 150 }; [L10] RET float min[] = { 5, 10, 12, 30, 150 }; [L10] RET float min[] = { 5, 10, 12, 30, 150 }; [L11] CALL float max[] = { 10, 12, 30, 150, 300 }; [L11] RET float max[] = { 10, 12, 30, 150, 300 }; [L11] RET float max[] = { 10, 12, 30, 150, 300 }; [L11] RET float max[] = { 10, 12, 30, 150, 300 }; [L11] RET float max[] = { 10, 12, 30, 150, 300 }; [L11] RET float max[] = { 10, 12, 30, 150, 300 }; [L11] RET float max[] = { 10, 12, 30, 150, 300 }; [L13] t = __VERIFIER_nondet_float() [L14] CALL, EXPR min[0] [L14] RET, EXPR min[0] [L14] t >= min[0] && t <= max[sizeof(max) / sizeof(max[0]) - 1] [L14] CALL, EXPR max[sizeof(max) / sizeof(max[0]) - 1] [L14] RET, EXPR max[sizeof(max) / sizeof(max[0]) - 1] [L14] t >= min[0] && t <= max[sizeof(max) / sizeof(max[0]) - 1] [L16] i = 0 [L16] COND TRUE i < sizeof(min) / sizeof(min[0]) [L17] CALL, EXPR max[i] [L17] RET, EXPR max[i] [L17] COND TRUE t <= max[i] [L19] CALL, EXPR min[i] [L19] RET, EXPR min[i] [L19] CALL, EXPR max[i] [L19] RET, EXPR max[i] [L19] CALL, EXPR min[i] [L19] RET, EXPR min[i] [L19] z = (t - min[i]) / (max[i] - min[i]) [L21] CALL __VERIFIER_assert(z >= 0.f && z <= 1.f) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L4] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 4 SDslu, 14 SDs, 0 SdLazy, 8 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=25occurred 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, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 421 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 0.1.23-1dbac8b [2018-11-10 07:03:09,380 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:03:09,382 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:03:09,390 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:03:09,391 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:03:09,391 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:03:09,392 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:03:09,393 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:03:09,394 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:03:09,395 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:03:09,396 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:03:09,396 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:03:09,397 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:03:09,398 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:03:09,399 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:03:09,399 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:03:09,400 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:03:09,402 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:03:09,403 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:03:09,404 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:03:09,405 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:03:09,406 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:03:09,408 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:03:09,408 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:03:09,409 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:03:09,409 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:03:09,410 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:03:09,411 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:03:09,412 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:03:09,413 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:03:09,413 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:03:09,414 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:03:09,414 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:03:09,414 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:03:09,415 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:03:09,415 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:03:09,416 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 07:03:09,427 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:03:09,427 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:03:09,427 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:03:09,428 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 07:03:09,428 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 07:03:09,428 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 07:03:09,428 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 07:03:09,428 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 07:03:09,429 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:03:09,430 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 07:03:09,430 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 07:03:09,430 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:03:09,430 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:03:09,430 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:03:09,430 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:03:09,430 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 07:03:09,431 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 07:03:09,431 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 07:03:09,431 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:03:09,431 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:03:09,431 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:03:09,431 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:03:09,431 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:03:09,432 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:03:09,432 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:03:09,432 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:03:09,432 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:03:09,432 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:03:09,432 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 07:03:09,434 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:03:09,434 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 07:03:09,434 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 07:03:09,435 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan 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 -> Taipan 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 -> d8b7d2eba04d5104e6e025f54a673b137a0acc7a [2018-11-10 07:03:09,467 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:03:09,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:03:09,480 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:03:09,481 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:03:09,482 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:03:09,482 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/interpolation_true-unreach-call_true-termination.c [2018-11-10 07:03:09,527 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/data/769c91c26/434f6e9c90c441459acf8e95aa2a70f3/FLAG15000b929 [2018-11-10 07:03:09,860 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:03:09,860 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/sv-benchmarks/c/float-benchs/interpolation_true-unreach-call_true-termination.c [2018-11-10 07:03:09,864 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/data/769c91c26/434f6e9c90c441459acf8e95aa2a70f3/FLAG15000b929 [2018-11-10 07:03:09,872 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/data/769c91c26/434f6e9c90c441459acf8e95aa2a70f3 [2018-11-10 07:03:09,875 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:03:09,877 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:03:09,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:03:09,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:03:09,879 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:03:09,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:03:09" (1/1) ... [2018-11-10 07:03:09,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9cf11be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:09, skipping insertion in model container [2018-11-10 07:03:09,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:03:09" (1/1) ... [2018-11-10 07:03:09,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:03:09,901 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:03:10,017 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:03:10,021 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:03:10,042 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:03:10,058 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:03:10,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:10 WrapperNode [2018-11-10 07:03:10,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:03:10,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:03:10,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:03:10,059 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:03:10,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:10" (1/1) ... [2018-11-10 07:03:10,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:10" (1/1) ... [2018-11-10 07:03:10,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:03:10,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:03:10,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:03:10,095 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:03:10,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:10" (1/1) ... [2018-11-10 07:03:10,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:10" (1/1) ... [2018-11-10 07:03:10,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:10" (1/1) ... [2018-11-10 07:03:10,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:10" (1/1) ... [2018-11-10 07:03:10,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:10" (1/1) ... [2018-11-10 07:03:10,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:10" (1/1) ... [2018-11-10 07:03:10,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:10" (1/1) ... [2018-11-10 07:03:10,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:03:10,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:03:10,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:03:10,128 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:03:10,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/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 [2018-11-10 07:03:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:03:10,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:03:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:03:10,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:03:10,218 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:03:10,218 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:03:10,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 07:03:10,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 07:03:11,233 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 07:03:11,272 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:03:11,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:03:11 BoogieIcfgContainer [2018-11-10 07:03:11,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:03:11,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:03:11,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:03:11,275 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:03:11,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:03:09" (1/3) ... [2018-11-10 07:03:11,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c317a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:03:11, skipping insertion in model container [2018-11-10 07:03:11,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:10" (2/3) ... [2018-11-10 07:03:11,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c317a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:03:11, skipping insertion in model container [2018-11-10 07:03:11,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:03:11" (3/3) ... [2018-11-10 07:03:11,278 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation_true-unreach-call_true-termination.c [2018-11-10 07:03:11,285 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:03:11,290 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 07:03:11,302 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 07:03:11,320 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 07:03:11,320 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:03:11,321 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:03:11,321 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:03:11,321 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:03:11,321 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:03:11,321 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:03:11,321 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:03:11,321 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:03:11,331 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-10 07:03:11,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 07:03:11,335 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:03:11,335 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:03:11,337 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:03:11,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:03:11,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1517004206, now seen corresponding path program 1 times [2018-11-10 07:03:11,344 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:03:11,344 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/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 [2018-11-10 07:03:11,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:03:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:03:11,614 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:03:11,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:03:11,628 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:03:11,639 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:03:11,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 07:03:11,642 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 07:03:11,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 07:03:11,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:03:11,651 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2018-11-10 07:03:11,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:03:11,665 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2018-11-10 07:03:11,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 07:03:11,666 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-10 07:03:11,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:03:11,672 INFO L225 Difference]: With dead ends: 38 [2018-11-10 07:03:11,672 INFO L226 Difference]: Without dead ends: 18 [2018-11-10 07:03:11,674 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 07:03:11,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-10 07:03:11,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-10 07:03:11,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-10 07:03:11,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-10 07:03:11,696 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 14 [2018-11-10 07:03:11,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:03:11,697 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-10 07:03:11,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 07:03:11,697 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-10 07:03:11,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 07:03:11,698 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:03:11,698 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:03:11,698 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:03:11,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:03:11,698 INFO L82 PathProgramCache]: Analyzing trace with hash -146941417, now seen corresponding path program 1 times [2018-11-10 07:03:11,699 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:03:11,699 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/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 [2018-11-10 07:03:11,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:03:11,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:03:11,966 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:03:11,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 07:03:11,990 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 07:03:12,003 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 07:03:12,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 07:03:12,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 07:03:12,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 07:03:12,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 07:03:12,005 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2018-11-10 07:03:14,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 07:03:14,616 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-11-10 07:03:14,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 07:03:14,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-10 07:03:14,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 07:03:14,656 INFO L225 Difference]: With dead ends: 30 [2018-11-10 07:03:14,656 INFO L226 Difference]: Without dead ends: 24 [2018-11-10 07:03:14,657 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 07:03:14,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-10 07:03:14,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2018-11-10 07:03:14,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 07:03:14,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-10 07:03:14,661 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 15 [2018-11-10 07:03:14,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 07:03:14,661 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-10 07:03:14,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 07:03:14,662 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-10 07:03:14,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 07:03:14,662 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:03:14,662 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:03:14,663 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 07:03:14,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:03:14,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1268654585, now seen corresponding path program 1 times [2018-11-10 07:03:14,664 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 07:03:14,664 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e90a8b1-57e8-4c6a-ab52-c747297e618a/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 07:03:14,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:03:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 07:03:38,493 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 07:03:45,166 WARN L179 SmtUtils]: Spent 6.64 s on a formula simplification that was a NOOP. DAG size: 98 [2018-11-10 07:03:45,203 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 125 [2018-11-10 07:03:45,204 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-10 07:03:45,231 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 127 [2018-11-10 07:03:45,232 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-10 07:03:46,375 INFO L303 Elim1Store]: Index analysis took 214 ms [2018-11-10 07:03:46,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 127 [2018-11-10 07:03:46,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2018-11-10 07:03:46,434 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:46,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 39 [2018-11-10 07:03:46,495 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:46,506 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:46,519 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:46,620 INFO L303 Elim1Store]: Index analysis took 153 ms [2018-11-10 07:03:46,620 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 55 [2018-11-10 07:03:46,664 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:46,683 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:46,701 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:46,716 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:46,733 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:46,748 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:46,927 INFO L303 Elim1Store]: Index analysis took 302 ms [2018-11-10 07:03:46,928 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 79 [2018-11-10 07:03:46,975 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:46,995 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:47,011 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:47,027 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:47,042 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:47,060 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:47,077 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:47,095 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:47,109 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:47,122 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:47,435 INFO L303 Elim1Store]: Index analysis took 500 ms [2018-11-10 07:03:47,437 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 116 [2018-11-10 07:03:47,437 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-11-10 07:03:47,827 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:48,067 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:48,276 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:48,471 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:49,027 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,027 INFO L303 Elim1Store]: Index analysis took 133 ms [2018-11-10 07:03:49,028 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 105 [2018-11-10 07:03:49,037 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 57 [2018-11-10 07:03:49,048 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,057 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 60 [2018-11-10 07:03:49,068 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,071 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,073 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 71 [2018-11-10 07:03:49,132 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,142 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,153 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,168 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,183 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,193 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,291 INFO L303 Elim1Store]: Index analysis took 197 ms [2018-11-10 07:03:49,292 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 90 [2018-11-10 07:03:49,318 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,324 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,331 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,340 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,350 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,357 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,366 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,374 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,382 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,390 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,448 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:49,560 INFO L303 Elim1Store]: Index analysis took 263 ms [2018-11-10 07:03:49,562 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 132 [2018-11-10 07:03:49,562 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-11-10 07:03:49,618 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:49,650 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:49,679 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:49,704 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:49,752 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:49,861 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:50,058 INFO L303 Elim1Store]: Index analysis took 196 ms [2018-11-10 07:03:50,059 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 125 [2018-11-10 07:03:50,081 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2018-11-10 07:03:50,113 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,145 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 39 [2018-11-10 07:03:50,184 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,201 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,214 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,306 INFO L303 Elim1Store]: Index analysis took 159 ms [2018-11-10 07:03:50,307 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 55 [2018-11-10 07:03:50,343 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,357 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,373 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,386 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,398 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,411 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,597 INFO L303 Elim1Store]: Index analysis took 287 ms [2018-11-10 07:03:50,597 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 79 [2018-11-10 07:03:50,631 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,647 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,655 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,671 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,687 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,703 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,723 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,740 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,758 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:50,773 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:51,088 INFO L303 Elim1Store]: Index analysis took 486 ms [2018-11-10 07:03:51,089 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 116 [2018-11-10 07:03:51,090 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-11-10 07:03:51,433 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:51,657 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:51,866 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:52,042 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:52,380 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,381 INFO L303 Elim1Store]: Index analysis took 133 ms [2018-11-10 07:03:52,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 105 [2018-11-10 07:03:52,396 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 57 [2018-11-10 07:03:52,445 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,500 INFO L303 Elim1Store]: Index analysis took 102 ms [2018-11-10 07:03:52,500 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 60 [2018-11-10 07:03:52,547 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,569 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,585 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,691 INFO L303 Elim1Store]: Index analysis took 188 ms [2018-11-10 07:03:52,692 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 71 [2018-11-10 07:03:52,720 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,729 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,738 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,748 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,756 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,764 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,871 INFO L303 Elim1Store]: Index analysis took 177 ms [2018-11-10 07:03:52,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 90 [2018-11-10 07:03:52,884 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,886 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,889 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,891 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,894 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,896 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,898 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,900 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,903 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,905 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,919 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:52,947 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 132 [2018-11-10 07:03:52,947 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-11-10 07:03:53,003 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:53,038 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:53,066 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:53,092 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:53,159 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:53,285 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 07:03:53,605 INFO L267 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-10 07:03:53,605 INFO L202 ElimStorePlain]: Needed 27 recursive calls to eliminate 12 variables, input treesize:317, output treesize:211 [2018-11-10 07:03:54,703 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:54,726 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:03:54,750 INFO L303 Elim1Store]: Index analysis took 713 ms [2018-11-10 07:03:54,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 178 treesize of output 138 [2018-11-10 07:03:55,563 INFO L303 Elim1Store]: Index analysis took 811 ms [2018-11-10 07:03:57,321 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 71 [2018-11-10 07:03:57,323 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-11-10 07:04:38,591 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:04:38,621 INFO L303 Elim1Store]: Index analysis took 387 ms [2018-11-10 07:04:39,367 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 112 treesize of output 106 [2018-11-10 07:04:39,371 INFO L267 ElimStorePlain]: Start of recursive call 4: 6 dim-0 vars, End of recursive call: 6 dim-0 vars, and 3 xjuncts. [2018-11-10 07:04:39,947 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 07:04:39,977 INFO L303 Elim1Store]: Index analysis took 604 ms [2018-11-10 07:04:39,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 86 [2018-11-10 07:04:39,979 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-10 07:05:58,752 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 8 dim-0 vars, and 4 xjuncts. [2018-11-10 07:06:39,120 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2018-11-10 07:06:39,121 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. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) 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.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) 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:234) 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:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) 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:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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) ... 45 more [2018-11-10 07:06:39,123 INFO L168 Benchmark]: Toolchain (without parser) took 209247.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.1 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -199.1 MB). Peak memory consumption was 9.0 MB. Max. memory is 11.5 GB. [2018-11-10 07:06:39,124 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:06:39,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.25 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 933.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-11-10 07:06:39,125 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.49 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:06:39,125 INFO L168 Benchmark]: Boogie Preprocessor took 32.52 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:06:39,126 INFO L168 Benchmark]: RCFGBuilder took 1144.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2018-11-10 07:06:39,126 INFO L168 Benchmark]: TraceAbstraction took 207850.01 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 53.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -34.1 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-10 07:06:39,129 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 181.25 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 933.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.49 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.52 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1144.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 207850.01 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 53.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -34.1 MB). Peak memory consumption was 19.4 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. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output.: 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...