./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.p+cfa-reducer.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_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.p+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/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 2c1dd836bd94b58992d0afa5dcab22080692fc8a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.p+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/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 2c1dd836bd94b58992d0afa5dcab22080692fc8a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 08:41:32,938 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:41:32,939 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:41:32,947 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:41:32,947 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:41:32,948 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:41:32,948 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:41:32,949 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:41:32,950 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:41:32,951 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:41:32,952 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:41:32,952 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:41:32,952 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:41:32,953 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:41:32,954 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:41:32,954 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:41:32,955 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:41:32,956 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:41:32,957 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:41:32,958 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:41:32,959 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:41:32,960 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:41:32,962 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:41:32,962 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:41:32,962 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:41:32,963 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:41:32,963 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:41:32,964 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:41:32,965 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:41:32,965 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:41:32,966 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:41:32,966 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:41:32,966 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:41:32,966 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:41:32,967 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:41:32,967 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:41:32,967 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 08:41:32,977 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:41:32,977 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:41:32,978 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 08:41:32,978 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 08:41:32,978 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 08:41:32,978 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 08:41:32,979 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 08:41:32,979 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 08:41:32,979 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 08:41:32,979 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 08:41:32,979 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 08:41:32,980 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:41:32,980 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 08:41:32,980 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:41:32,980 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 08:41:32,980 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:41:32,980 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 08:41:32,980 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 08:41:32,981 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 08:41:32,981 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 08:41:32,981 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:41:32,981 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 08:41:32,981 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:41:32,981 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:41:32,981 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 08:41:32,981 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 08:41:32,982 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 08:41:32,982 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:41:32,983 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 08:41:32,984 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 08:41:32,984 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 08:41:32,984 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 08:41:32,984 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 08:41:32,984 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 08:41:32,984 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_a1c60387-38ec-4414-9df4-571aaef4d831/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 -> 2c1dd836bd94b58992d0afa5dcab22080692fc8a [2018-11-10 08:41:33,008 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:41:33,016 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:41:33,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:41:33,019 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:41:33,019 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:41:33,019 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.p+cfa-reducer.c [2018-11-10 08:41:33,055 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/data/c61dc770d/e375e9391b914797b37d772cbae2f236/FLAGc5067bae2 [2018-11-10 08:41:33,451 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:41:33,452 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.p+cfa-reducer.c [2018-11-10 08:41:33,455 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/data/c61dc770d/e375e9391b914797b37d772cbae2f236/FLAGc5067bae2 [2018-11-10 08:41:33,463 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/data/c61dc770d/e375e9391b914797b37d772cbae2f236 [2018-11-10 08:41:33,465 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:41:33,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 08:41:33,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:41:33,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:41:33,470 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:41:33,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:41:33" (1/1) ... [2018-11-10 08:41:33,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fce82c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:33, skipping insertion in model container [2018-11-10 08:41:33,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:41:33" (1/1) ... [2018-11-10 08:41:33,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:41:33,493 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:41:33,593 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:41:33,595 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:41:33,615 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:41:33,629 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:41:33,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:33 WrapperNode [2018-11-10 08:41:33,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:41:33,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 08:41:33,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 08:41:33,630 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 08:41:33,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:33" (1/1) ... [2018-11-10 08:41:33,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:33" (1/1) ... [2018-11-10 08:41:33,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 08:41:33,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:41:33,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:41:33,666 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:41:33,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:33" (1/1) ... [2018-11-10 08:41:33,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:33" (1/1) ... [2018-11-10 08:41:33,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:33" (1/1) ... [2018-11-10 08:41:33,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:33" (1/1) ... [2018-11-10 08:41:33,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:33" (1/1) ... [2018-11-10 08:41:33,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:33" (1/1) ... [2018-11-10 08:41:33,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:33" (1/1) ... [2018-11-10 08:41:33,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:41:33,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:41:33,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:41:33,740 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:41:33,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/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 08:41:33,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 08:41:33,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 08:41:33,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:41:33,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:41:33,781 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 08:41:33,781 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 08:41:34,107 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:41:34,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:41:34 BoogieIcfgContainer [2018-11-10 08:41:34,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:41:34,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 08:41:34,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 08:41:34,111 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 08:41:34,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 08:41:33" (1/3) ... [2018-11-10 08:41:34,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e15b76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:41:34, skipping insertion in model container [2018-11-10 08:41:34,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:33" (2/3) ... [2018-11-10 08:41:34,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e15b76e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:41:34, skipping insertion in model container [2018-11-10 08:41:34,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:41:34" (3/3) ... [2018-11-10 08:41:34,114 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation2_true-unreach-call.c.p+cfa-reducer.c [2018-11-10 08:41:34,119 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 08:41:34,125 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 08:41:34,138 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 08:41:34,161 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 08:41:34,161 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 08:41:34,161 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 08:41:34,161 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:41:34,161 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:41:34,161 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 08:41:34,161 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:41:34,161 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 08:41:34,171 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-10 08:41:34,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 08:41:34,174 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:41:34,175 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:41:34,176 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:41:34,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:41:34,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1066142193, now seen corresponding path program 1 times [2018-11-10 08:41:34,181 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:41:34,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:41:34,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:41:34,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:41:34,210 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:41:34,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:41:34,312 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 08:41:34,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:41:34,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 08:41:34,314 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:41:34,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 08:41:34,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:41:34,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:41:34,326 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-11-10 08:41:34,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:41:34,360 INFO L93 Difference]: Finished difference Result 41 states and 53 transitions. [2018-11-10 08:41:34,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:41:34,361 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-10 08:41:34,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:41:34,366 INFO L225 Difference]: With dead ends: 41 [2018-11-10 08:41:34,366 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 08:41:34,368 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 08:41:34,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 08:41:34,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-10 08:41:34,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 08:41:34,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2018-11-10 08:41:34,389 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 16 [2018-11-10 08:41:34,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:41:34,389 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2018-11-10 08:41:34,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 08:41:34,389 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-11-10 08:41:34,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 08:41:34,390 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:41:34,390 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:41:34,390 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:41:34,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:41:34,390 INFO L82 PathProgramCache]: Analyzing trace with hash 474733396, now seen corresponding path program 1 times [2018-11-10 08:41:34,391 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:41:34,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:41:34,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:41:34,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:41:34,392 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:41:34,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:41:34,484 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 08:41:34,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:41:34,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 08:41:34,484 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:41:34,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 08:41:34,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 08:41:34,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 08:41:34,486 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 5 states. [2018-11-10 08:41:34,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:41:34,524 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-11-10 08:41:34,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 08:41:34,524 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-11-10 08:41:34,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:41:34,525 INFO L225 Difference]: With dead ends: 23 [2018-11-10 08:41:34,525 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 08:41:34,525 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-10 08:41:34,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 08:41:34,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-10 08:41:34,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 08:41:34,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-10 08:41:34,528 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2018-11-10 08:41:34,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:41:34,528 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-10 08:41:34,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 08:41:34,528 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-10 08:41:34,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 08:41:34,529 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:41:34,529 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:41:34,529 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:41:34,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:41:34,529 INFO L82 PathProgramCache]: Analyzing trace with hash 489837433, now seen corresponding path program 1 times [2018-11-10 08:41:34,529 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:41:34,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:41:34,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:41:34,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:41:34,530 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:41:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:41:34,583 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 08:41:34,584 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:41:34,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 08:41:34,584 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 08:41:34,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 08:41:34,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:41:34,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:41:34,585 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-11-10 08:41:34,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:41:34,614 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2018-11-10 08:41:34,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:41:34,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-10 08:41:34,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:41:34,619 INFO L225 Difference]: With dead ends: 37 [2018-11-10 08:41:34,619 INFO L226 Difference]: Without dead ends: 29 [2018-11-10 08:41:34,619 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 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 08:41:34,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-10 08:41:34,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2018-11-10 08:41:34,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 08:41:34,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-10 08:41:34,623 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 16 [2018-11-10 08:41:34,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:41:34,624 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-10 08:41:34,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 08:41:34,624 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-10 08:41:34,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 08:41:34,624 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:41:34,624 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:41:34,624 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:41:34,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:41:34,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1570839537, now seen corresponding path program 1 times [2018-11-10 08:41:34,625 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 08:41:34,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:41:34,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:41:34,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:41:34,627 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 08:41:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:41:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:41:34,682 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 08:41:34,695 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,696 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,696 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,696 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,697 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,697 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,697 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,698 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,698 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,698 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,699 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,699 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,699 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,700 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,700 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,700 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,700 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,700 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,701 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,701 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,701 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,701 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,701 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,702 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:41:34,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 08:41:34 BoogieIcfgContainer [2018-11-10 08:41:34,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 08:41:34,716 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:41:34,716 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:41:34,716 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:41:34,716 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:41:34" (3/4) ... [2018-11-10 08:41:34,719 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 08:41:34,719 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:41:34,720 INFO L168 Benchmark]: Toolchain (without parser) took 1254.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 959.3 MB in the beginning and 1.1 GB in the end (delta: -119.8 MB). Peak memory consumption was 66.8 MB. Max. memory is 11.5 GB. [2018-11-10 08:41:34,721 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:41:34,721 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.76 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 08:41:34,722 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.57 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 945.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:41:34,722 INFO L168 Benchmark]: Boogie Preprocessor took 74.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -234.8 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2018-11-10 08:41:34,723 INFO L168 Benchmark]: RCFGBuilder took 367.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 11.5 GB. [2018-11-10 08:41:34,723 INFO L168 Benchmark]: TraceAbstraction took 607.08 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: 53.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 11.5 GB. [2018-11-10 08:41:34,723 INFO L168 Benchmark]: Witness Printer took 3.74 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 08:41:34,726 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 162.76 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.57 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 945.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -234.8 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 367.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 607.08 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: 53.5 MB). Peak memory consumption was 53.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.74 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 - 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: 48]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 30, overapproximation of someBinaryDOUBLEComparisonOperation at line 35, overapproximation of to_real at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 33. Possible FailurePath: [L1] int __return_main; VAL [\old(__return_main)=45, __return_main=0] [L9] int main__i; [L10] float main__z; [L11] float main__t; [L12] CALL float main__min[5] = { 5, 10, 12, 30, 150 }; [L12] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L12] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L12] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L12] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L12] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L12] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L13] CALL float main__max[5] = { 10, 12, 30, 150, 300 }; [L13] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L13] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L13] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L13] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L13] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L13] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L14] CALL float main__org[5] = { 1, 5, -10, 30, 20 }; [L14] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L14] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L14] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L14] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L14] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L14] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L15] CALL float main__slope[5] = { 4, -15, 40, -10, 0 }; [L15] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L15] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L15] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L15] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L15] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L15] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L16] main__t = __VERIFIER_nondet_float() [L17] int main____CPAchecker_TMP_0; [L18] CALL, EXPR main__min[0] [L18] RET, EXPR main__min[0] [L18] COND TRUE main__t >= (main__min[0]) [L20] CALL, EXPR main__max[4UL] [L20] RET, EXPR main__max[4UL] [L20] COND TRUE main__t <= (main__max[4UL]) [L22] main____CPAchecker_TMP_0 = 1 VAL [__return_main=0] [L24] COND TRUE main____CPAchecker_TMP_0 != 0 [L26] main__i = 0 VAL [__return_main=0] [L28] COND TRUE main__i < 5UL [L30] CALL, EXPR main__max[main__i] [L30] RET, EXPR main__max[main__i] [L30] COND TRUE main__t <= (main__max[main__i]) [L33] CALL, EXPR main__org[main__i] [L33] RET, EXPR main__org[main__i] [L33] CALL, EXPR main__slope[main__i] [L33] RET, EXPR main__slope[main__i] [L33] CALL, EXPR main__min[main__i] [L33] RET, EXPR main__min[main__i] [L33] CALL, EXPR main__max[main__i] [L33] RET, EXPR main__max[main__i] [L33] CALL, EXPR main__min[main__i] [L33] RET, EXPR main__min[main__i] [L33] main__z = (main__org[main__i]) + (((main__slope[main__i]) * (main__t - (main__min[main__i]))) / ((main__max[main__i]) - (main__min[main__i]))) [L34] int main____CPAchecker_TMP_1; VAL [__return_main=0] [L35] COND FALSE !(main__z >= -10.0) VAL [__return_main=0] [L60] main____CPAchecker_TMP_1 = 0 VAL [__return_main=0] [L42] int __tmp_1; [L43] __tmp_1 = main____CPAchecker_TMP_1 [L44] int __VERIFIER_assert__cond; [L45] __VERIFIER_assert__cond = __tmp_1 VAL [__return_main=0] [L46] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_main=0] [L48] __VERIFIER_error() VAL [__return_main=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 67 SDtfs, 28 SDslu, 82 SDs, 0 SdLazy, 22 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 855 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 08:41:36,145 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:41:36,146 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:41:36,155 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:41:36,155 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:41:36,156 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:41:36,157 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:41:36,158 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:41:36,159 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:41:36,160 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:41:36,160 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:41:36,161 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:41:36,161 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:41:36,162 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:41:36,163 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:41:36,164 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:41:36,164 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:41:36,166 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:41:36,167 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:41:36,168 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:41:36,169 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:41:36,170 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:41:36,172 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:41:36,172 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:41:36,172 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:41:36,173 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:41:36,174 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:41:36,175 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:41:36,175 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:41:36,176 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:41:36,176 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:41:36,176 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:41:36,177 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:41:36,177 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:41:36,177 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:41:36,179 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:41:36,179 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 08:41:36,190 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:41:36,190 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:41:36,191 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 08:41:36,191 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 08:41:36,191 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 08:41:36,191 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 08:41:36,191 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 08:41:36,191 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 08:41:36,192 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:41:36,192 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 08:41:36,192 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 08:41:36,192 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:41:36,192 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 08:41:36,192 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 08:41:36,193 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 08:41:36,193 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 08:41:36,193 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 08:41:36,193 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 08:41:36,193 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:41:36,193 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 08:41:36,193 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:41:36,194 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:41:36,196 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 08:41:36,196 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 08:41:36,196 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 08:41:36,196 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:41:36,196 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 08:41:36,196 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 08:41:36,197 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 08:41:36,197 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 08:41:36,197 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 08:41:36,197 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 08:41:36,197 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_a1c60387-38ec-4414-9df4-571aaef4d831/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 -> 2c1dd836bd94b58992d0afa5dcab22080692fc8a [2018-11-10 08:41:36,227 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:41:36,236 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:41:36,239 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:41:36,240 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:41:36,240 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:41:36,240 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.p+cfa-reducer.c [2018-11-10 08:41:36,281 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/data/af6ccb91e/ec3f32dcd0f9440d8286921e4c4717bf/FLAG0e79d80e7 [2018-11-10 08:41:36,680 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:41:36,681 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.p+cfa-reducer.c [2018-11-10 08:41:36,684 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/data/af6ccb91e/ec3f32dcd0f9440d8286921e4c4717bf/FLAG0e79d80e7 [2018-11-10 08:41:36,694 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/data/af6ccb91e/ec3f32dcd0f9440d8286921e4c4717bf [2018-11-10 08:41:36,697 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:41:36,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 08:41:36,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:41:36,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:41:36,701 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:41:36,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:41:36" (1/1) ... [2018-11-10 08:41:36,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76e5a1a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:36, skipping insertion in model container [2018-11-10 08:41:36,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:41:36" (1/1) ... [2018-11-10 08:41:36,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:41:36,725 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:41:36,858 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:41:36,862 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:41:36,892 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:41:36,907 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:41:36,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:36 WrapperNode [2018-11-10 08:41:36,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:41:36,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 08:41:36,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 08:41:36,908 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 08:41:36,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:36" (1/1) ... [2018-11-10 08:41:36,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:36" (1/1) ... [2018-11-10 08:41:36,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 08:41:36,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:41:36,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:41:36,948 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:41:36,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:36" (1/1) ... [2018-11-10 08:41:36,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:36" (1/1) ... [2018-11-10 08:41:36,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:36" (1/1) ... [2018-11-10 08:41:36,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:36" (1/1) ... [2018-11-10 08:41:36,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:36" (1/1) ... [2018-11-10 08:41:36,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:36" (1/1) ... [2018-11-10 08:41:36,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:36" (1/1) ... [2018-11-10 08:41:36,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:41:36,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:41:36,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:41:36,980 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:41:36,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/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 08:41:37,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 08:41:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 08:41:37,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:41:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:41:37,060 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 08:41:37,060 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 08:41:37,556 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 08:41:39,209 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:41:39,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:41:39 BoogieIcfgContainer [2018-11-10 08:41:39,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:41:39,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 08:41:39,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 08:41:39,213 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 08:41:39,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 08:41:36" (1/3) ... [2018-11-10 08:41:39,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d0dfb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:41:39, skipping insertion in model container [2018-11-10 08:41:39,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:41:36" (2/3) ... [2018-11-10 08:41:39,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d0dfb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 08:41:39, skipping insertion in model container [2018-11-10 08:41:39,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:41:39" (3/3) ... [2018-11-10 08:41:39,216 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation2_true-unreach-call.c.p+cfa-reducer.c [2018-11-10 08:41:39,223 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 08:41:39,229 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 08:41:39,237 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 08:41:39,254 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 08:41:39,254 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 08:41:39,254 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 08:41:39,254 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 08:41:39,255 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:41:39,255 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:41:39,255 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 08:41:39,255 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:41:39,255 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 08:41:39,264 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-10 08:41:39,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 08:41:39,267 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:41:39,268 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:41:39,269 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:41:39,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:41:39,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1066142193, now seen corresponding path program 1 times [2018-11-10 08:41:39,275 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 08:41:39,276 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/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 08:41:39,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:41:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:41:39,667 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:41:39,687 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 08:41:39,687 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 08:41:39,705 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:41:39,705 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 08:41:39,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 08:41:39,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:41:39,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:41:39,717 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2018-11-10 08:41:40,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:41:40,069 INFO L93 Difference]: Finished difference Result 41 states and 53 transitions. [2018-11-10 08:41:40,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:41:40,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-10 08:41:40,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:41:40,076 INFO L225 Difference]: With dead ends: 41 [2018-11-10 08:41:40,076 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 08:41:40,079 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 08:41:40,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 08:41:40,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-10 08:41:40,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 08:41:40,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2018-11-10 08:41:40,100 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 16 [2018-11-10 08:41:40,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:41:40,100 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2018-11-10 08:41:40,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 08:41:40,101 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2018-11-10 08:41:40,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 08:41:40,101 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:41:40,101 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:41:40,101 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:41:40,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:41:40,102 INFO L82 PathProgramCache]: Analyzing trace with hash 474733396, now seen corresponding path program 1 times [2018-11-10 08:41:40,102 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 08:41:40,102 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/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 08:41:40,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:41:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:41:40,501 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:41:40,511 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 08:41:40,511 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 08:41:40,521 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:41:40,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 08:41:40,523 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 08:41:40,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:41:40,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:41:40,523 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 3 states. [2018-11-10 08:41:43,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:41:43,015 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2018-11-10 08:41:43,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:41:43,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-10 08:41:43,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:41:43,017 INFO L225 Difference]: With dead ends: 30 [2018-11-10 08:41:43,017 INFO L226 Difference]: Without dead ends: 22 [2018-11-10 08:41:43,017 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 08:41:43,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-10 08:41:43,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2018-11-10 08:41:43,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 08:41:43,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2018-11-10 08:41:43,020 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 16 [2018-11-10 08:41:43,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:41:43,021 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2018-11-10 08:41:43,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 08:41:43,021 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-11-10 08:41:43,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 08:41:43,021 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:41:43,021 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:41:43,021 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:41:43,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:41:43,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1585943574, now seen corresponding path program 1 times [2018-11-10 08:41:43,022 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 08:41:43,022 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/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 08:41:43,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:41:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:41:43,421 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:41:43,437 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 08:41:43,438 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 08:41:43,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:41:43,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 08:41:43,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 08:41:43,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 08:41:43,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 08:41:43,450 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 4 states. [2018-11-10 08:41:45,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:41:45,331 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2018-11-10 08:41:45,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 08:41:45,331 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-10 08:41:45,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 08:41:45,332 INFO L225 Difference]: With dead ends: 24 [2018-11-10 08:41:45,332 INFO L226 Difference]: Without dead ends: 20 [2018-11-10 08:41:45,332 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 08:41:45,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-10 08:41:45,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-10 08:41:45,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 08:41:45,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-10 08:41:45,335 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 17 [2018-11-10 08:41:45,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 08:41:45,335 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-10 08:41:45,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 08:41:45,335 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-10 08:41:45,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 08:41:45,336 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 08:41:45,336 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:41:45,336 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 08:41:45,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:41:45,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1570839537, now seen corresponding path program 1 times [2018-11-10 08:41:45,336 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 08:41:45,337 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c60387-38ec-4414-9df4-571aaef4d831/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-10 08:41:45,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:41:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:41:46,429 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:42:18,554 WARN L179 SmtUtils]: Spent 32.10 s on a formula simplification. DAG size of input: 166 DAG size of output: 142 [2018-11-10 08:42:18,914 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:42:18,916 INFO L303 Elim1Store]: Index analysis took 355 ms [2018-11-10 08:42:18,919 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 40 [2018-11-10 08:42:20,174 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:42:20,175 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 08:42:20,176 INFO L303 Elim1Store]: Index analysis took 1230 ms [2018-11-10 08:42:20,177 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2018-11-10 08:42:21,040 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:42:21,347 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:42:21,462 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:42:21,804 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:42:21,806 INFO L303 Elim1Store]: Index analysis took 1604 ms [2018-11-10 08:42:21,806 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2018-11-10 08:42:21,807 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 08:42:25,815 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:42:30,064 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:42:43,150 INFO L303 Elim1Store]: Index analysis took 2630 ms [2018-11-10 08:42:43,151 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 232 [2018-11-10 08:42:54,691 WARN L179 SmtUtils]: Spent 11.54 s on a formula simplification that was a NOOP. DAG size: 102 [2018-11-10 08:42:55,008 INFO L303 Elim1Store]: Index analysis took 315 ms [2018-11-10 08:42:55,008 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 08:42:55,275 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:42:55,731 INFO L303 Elim1Store]: Index analysis took 720 ms [2018-11-10 08:42:55,732 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 08:42:55,993 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:42:56,126 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:42:56,334 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:42:57,229 INFO L303 Elim1Store]: Index analysis took 1494 ms [2018-11-10 08:42:57,230 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 08:42:57,744 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:42:58,015 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:42:58,186 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:42:58,289 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:42:58,424 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:42:58,530 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:00,739 INFO L303 Elim1Store]: Index analysis took 3506 ms [2018-11-10 08:43:00,740 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 08:43:01,013 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:01,176 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:01,385 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:01,545 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:01,633 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:01,742 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:01,871 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:02,156 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:02,434 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:02,684 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:06,316 INFO L303 Elim1Store]: Index analysis took 5571 ms [2018-11-10 08:43:06,317 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 08:43:06,318 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-10 08:43:09,796 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:13,246 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:15,476 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:18,388 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:24,873 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:24,874 INFO L303 Elim1Store]: Index analysis took 2291 ms [2018-11-10 08:43:24,875 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 200 [2018-11-10 08:43:35,712 WARN L179 SmtUtils]: Spent 10.83 s on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2018-11-10 08:43:35,766 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 08:43:35,918 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:36,038 INFO L303 Elim1Store]: Index analysis took 269 ms [2018-11-10 08:43:36,039 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 08:43:36,170 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:36,226 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:36,282 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:36,605 INFO L303 Elim1Store]: Index analysis took 563 ms [2018-11-10 08:43:36,606 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 08:43:36,710 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:36,752 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:36,811 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:36,875 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:37,002 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:37,048 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:37,558 INFO L303 Elim1Store]: Index analysis took 948 ms [2018-11-10 08:43:37,558 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 08:43:37,685 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:37,724 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:37,756 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:37,797 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:37,846 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:37,884 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:37,923 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:37,965 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:38,034 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:38,092 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:39,159 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:39,160 INFO L303 Elim1Store]: Index analysis took 1595 ms [2018-11-10 08:43:39,161 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 08:43:39,162 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-10 08:43:40,345 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:41,160 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:42,000 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:42,592 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:45,003 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:45,041 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:45,222 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:45,223 INFO L303 Elim1Store]: Index analysis took 671 ms [2018-11-10 08:43:45,224 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 236 [2018-11-10 08:43:45,265 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 87 treesize of output 83 [2018-11-10 08:43:45,295 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:45,317 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 83 treesize of output 81 [2018-11-10 08:43:45,372 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:45,400 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:45,425 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:45,598 INFO L303 Elim1Store]: Index analysis took 278 ms [2018-11-10 08:43:45,599 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 75 treesize of output 87 [2018-11-10 08:43:45,684 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:45,715 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:45,743 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:45,771 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:45,805 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:45,838 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:46,195 INFO L303 Elim1Store]: Index analysis took 593 ms [2018-11-10 08:43:46,196 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 67 treesize of output 101 [2018-11-10 08:43:46,369 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:46,429 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:46,462 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:46,502 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:46,536 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:46,573 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:46,605 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:46,639 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:46,681 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:46,726 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:47,456 INFO L303 Elim1Store]: Index analysis took 1254 ms [2018-11-10 08:43:47,458 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 59 treesize of output 132 [2018-11-10 08:43:47,458 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-10 08:43:48,258 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:48,689 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:49,097 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:49,425 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:50,673 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:50,782 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:50,822 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:50,923 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:50,964 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,154 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,155 INFO L303 Elim1Store]: Index analysis took 560 ms [2018-11-10 08:43:51,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 293 [2018-11-10 08:43:51,180 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 116 treesize of output 109 [2018-11-10 08:43:51,222 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,284 INFO L303 Elim1Store]: Index analysis took 102 ms [2018-11-10 08:43:51,285 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 109 treesize of output 102 [2018-11-10 08:43:51,316 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,328 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,333 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,412 INFO L303 Elim1Store]: Index analysis took 125 ms [2018-11-10 08:43:51,413 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 96 treesize of output 103 [2018-11-10 08:43:51,473 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,499 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,520 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,532 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,540 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,548 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,818 INFO L303 Elim1Store]: Index analysis took 402 ms [2018-11-10 08:43:51,819 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 83 treesize of output 112 [2018-11-10 08:43:51,845 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,849 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,854 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,859 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,864 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,868 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,873 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,878 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,882 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,887 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:51,971 INFO L303 Elim1Store]: Index analysis took 149 ms [2018-11-10 08:43:51,972 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 70 treesize of output 140 [2018-11-10 08:43:51,973 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-10 08:43:52,088 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:52,155 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:52,211 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:52,268 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:52,465 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:52,619 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:52,769 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:52,916 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:53,253 INFO L267 ElimStorePlain]: Start of recursive call 1: 20 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 08:43:53,253 INFO L202 ElimStorePlain]: Needed 28 recursive calls to eliminate 22 variables, input treesize:545, output treesize:155 [2018-11-10 08:43:53,771 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2018-11-10 08:43:54,553 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:54,592 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:54,621 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:54,650 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:54,679 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:54,708 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:54,737 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:54,766 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:54,797 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:54,829 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:54,861 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:54,892 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 08:43:54,922 INFO L303 Elim1Store]: Index analysis took 1146 ms [2018-11-10 08:43:54,923 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 266 treesize of output 242 [2018-11-10 08:43:57,412 INFO L303 Elim1Store]: Index analysis took 2487 ms [2018-11-10 08:44:03,167 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 123 treesize of output 153 [2018-11-10 08:44:03,168 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-10 08:44:03,241 INFO L267 ElimStorePlain]: Start of recursive call 3: 195 dim-0 vars, End of recursive call: 195 dim-0 vars, and 54 xjuncts. [2018-11-10 08:46:37,921 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-10 08:46:38,122 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2018-11-10 08:46:38,122 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.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.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java: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) ... 47 more [2018-11-10 08:46:38,124 INFO L168 Benchmark]: Toolchain (without parser) took 301426.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 209.7 MB). Free memory was 949.2 MB in the beginning and 931.2 MB in the end (delta: 18.0 MB). Peak memory consumption was 227.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:46:38,125 INFO L168 Benchmark]: CDTParser took 0.15 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 08:46:38,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.80 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 08:46:38,126 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.18 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:46:38,126 INFO L168 Benchmark]: Boogie Preprocessor took 32.05 ms. Allocated memory is still 1.0 GB. Free memory was 933.1 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 08:46:38,126 INFO L168 Benchmark]: RCFGBuilder took 2230.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2018-11-10 08:46:38,126 INFO L168 Benchmark]: TraceAbstraction took 298913.62 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 55.6 MB). Free memory was 1.1 GB in the beginning and 931.2 MB in the end (delta: 168.6 MB). Peak memory consumption was 224.2 MB. Max. memory is 11.5 GB. [2018-11-10 08:46:38,128 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 208.80 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.18 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.05 ms. Allocated memory is still 1.0 GB. Free memory was 933.1 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2230.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 298913.62 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 55.6 MB). Free memory was 1.1 GB in the beginning and 931.2 MB in the end (delta: 168.6 MB). Peak memory consumption was 224.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...