./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/heavy_false-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/heavy_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/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 904a0e6086e85df99de143ae018a34e00ed12958 .................................................................................................................................................................................................................................................................................................................................................................. 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_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/heavy_false-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/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 904a0e6086e85df99de143ae018a34e00ed12958 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:55:05,904 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:55:05,905 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:55:05,913 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:55:05,913 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:55:05,914 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:55:05,914 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:55:05,915 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:55:05,916 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:55:05,917 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:55:05,918 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:55:05,918 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:55:05,919 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:55:05,919 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:55:05,920 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:55:05,920 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:55:05,921 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:55:05,922 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:55:05,924 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:55:05,925 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:55:05,925 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:55:05,926 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:55:05,928 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:55:05,928 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:55:05,928 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:55:05,929 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:55:05,929 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:55:05,930 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:55:05,931 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:55:05,931 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:55:05,932 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:55:05,932 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:55:05,932 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:55:05,932 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:55:05,933 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:55:05,933 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:55:05,933 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 15:55:05,943 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:55:05,944 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:55:05,944 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:55:05,944 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:55:05,944 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:55:05,945 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:55:05,945 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:55:05,945 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:55:05,945 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:55:05,945 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:55:05,945 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:55:05,945 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:55:05,945 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:55:05,946 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:55:05,946 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:55:05,946 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:55:05,946 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:55:05,946 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:55:05,946 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:55:05,946 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:55:05,946 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:55:05,946 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:55:05,946 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:55:05,946 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:55:05,947 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:55:05,947 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:55:05,947 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:55:05,947 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:55:05,947 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:55:05,947 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:55:05,947 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:55:05,947 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:55:05,947 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:55:05,947 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:55:05,947 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:55:05,947 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:55:05,947 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:55:05,948 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_9095c3ae-e419-46d0-be71-3a66b346697e/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 -> 904a0e6086e85df99de143ae018a34e00ed12958 [2018-11-18 15:55:05,970 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:55:05,979 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:55:05,982 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:55:05,983 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:55:05,984 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:55:05,984 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/../../sv-benchmarks/c/loops/heavy_false-unreach-call.c [2018-11-18 15:55:06,028 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/data/5ae928f60/5575fe60e5164ad98d2cf02797375859/FLAG428919d90 [2018-11-18 15:55:06,432 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:55:06,432 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/sv-benchmarks/c/loops/heavy_false-unreach-call.c [2018-11-18 15:55:06,437 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/data/5ae928f60/5575fe60e5164ad98d2cf02797375859/FLAG428919d90 [2018-11-18 15:55:06,446 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/data/5ae928f60/5575fe60e5164ad98d2cf02797375859 [2018-11-18 15:55:06,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:55:06,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:55:06,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:55:06,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:55:06,452 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:55:06,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:55:06" (1/1) ... [2018-11-18 15:55:06,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a2a7429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:06, skipping insertion in model container [2018-11-18 15:55:06,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:55:06" (1/1) ... [2018-11-18 15:55:06,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:55:06,474 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:55:06,582 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:55:06,603 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:55:06,615 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:55:06,648 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:55:06,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:06 WrapperNode [2018-11-18 15:55:06,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:55:06,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:55:06,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:55:06,649 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:55:06,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:06" (1/1) ... [2018-11-18 15:55:06,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:06" (1/1) ... [2018-11-18 15:55:06,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:55:06,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:55:06,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:55:06,664 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:55:06,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:06" (1/1) ... [2018-11-18 15:55:06,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:06" (1/1) ... [2018-11-18 15:55:06,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:06" (1/1) ... [2018-11-18 15:55:06,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:06" (1/1) ... [2018-11-18 15:55:06,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:06" (1/1) ... [2018-11-18 15:55:06,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:06" (1/1) ... [2018-11-18 15:55:06,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:06" (1/1) ... [2018-11-18 15:55:06,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:55:06,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:55:06,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:55:06,719 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:55:06,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/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 [2018-11-18 15:55:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 15:55:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:55:06,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:55:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:55:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:55:06,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:55:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 15:55:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:55:06,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:55:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 15:55:06,880 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:55:06,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:55:06 BoogieIcfgContainer [2018-11-18 15:55:06,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:55:06,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:55:06,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:55:06,884 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:55:06,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:55:06" (1/3) ... [2018-11-18 15:55:06,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4608a79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:55:06, skipping insertion in model container [2018-11-18 15:55:06,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:06" (2/3) ... [2018-11-18 15:55:06,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4608a79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:55:06, skipping insertion in model container [2018-11-18 15:55:06,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:55:06" (3/3) ... [2018-11-18 15:55:06,887 INFO L112 eAbstractionObserver]: Analyzing ICFG heavy_false-unreach-call.c [2018-11-18 15:55:06,895 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:55:06,901 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:55:06,914 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:55:06,935 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:55:06,936 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:55:06,936 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:55:06,936 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:55:06,936 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:55:06,936 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:55:06,936 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:55:06,936 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:55:06,947 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-18 15:55:06,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 15:55:06,951 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:06,952 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:55:06,953 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:06,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:06,957 INFO L82 PathProgramCache]: Analyzing trace with hash -795757055, now seen corresponding path program 1 times [2018-11-18 15:55:06,958 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:55:06,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:06,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:06,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:06,988 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:55:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:07,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:55:07,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:55:07,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:55:07,043 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:55:07,047 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:55:07,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:55:07,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:55:07,056 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-11-18 15:55:07,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:07,068 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2018-11-18 15:55:07,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:55:07,070 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-11-18 15:55:07,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:07,078 INFO L225 Difference]: With dead ends: 38 [2018-11-18 15:55:07,078 INFO L226 Difference]: Without dead ends: 18 [2018-11-18 15:55:07,081 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:55:07,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-18 15:55:07,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-18 15:55:07,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-18 15:55:07,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-18 15:55:07,104 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2018-11-18 15:55:07,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:07,105 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-18 15:55:07,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:55:07,105 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-18 15:55:07,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 15:55:07,105 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:07,105 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:55:07,106 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:07,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:07,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1100257748, now seen corresponding path program 1 times [2018-11-18 15:55:07,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:55:07,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:07,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:07,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:07,107 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:55:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:07,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:55:07,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:55:07,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:55:07,158 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:55:07,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:55:07,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:55:07,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:55:07,159 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2018-11-18 15:55:07,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:07,184 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2018-11-18 15:55:07,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:55:07,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 15:55:07,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:07,185 INFO L225 Difference]: With dead ends: 30 [2018-11-18 15:55:07,185 INFO L226 Difference]: Without dead ends: 27 [2018-11-18 15:55:07,186 INFO L604 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 [2018-11-18 15:55:07,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-18 15:55:07,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 20. [2018-11-18 15:55:07,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 15:55:07,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-18 15:55:07,190 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 10 [2018-11-18 15:55:07,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:07,190 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-18 15:55:07,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:55:07,190 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-18 15:55:07,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 15:55:07,191 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:07,191 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:55:07,191 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:07,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:07,191 INFO L82 PathProgramCache]: Analyzing trace with hash -2045733446, now seen corresponding path program 1 times [2018-11-18 15:55:07,191 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:55:07,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:07,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:07,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:55:07,193 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:55:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:07,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:55:07,266 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:55:07,266 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:55:07,267 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-11-18 15:55:07,268 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [18], [21], [42], [48], [51], [54], [55], [56] [2018-11-18 15:55:07,288 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:55:07,288 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:55:07,348 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) 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:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java: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: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:209) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translateStore(MappedTerm2Expression.java:288) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:157) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translateStore(MappedTerm2Expression.java:291) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:157) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.MappedTerm2Expression.translate(MappedTerm2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.AssumptionBuilder.constructBoogieAssumeStatement(AssumptionBuilder.java:75) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.getCachedCodeBlock(TermConjunctEvaluator.java:273) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:296) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:536) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:340) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:217) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:379) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-11-18 15:55:07,350 INFO L168 Benchmark]: Toolchain (without parser) took 901.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -110.3 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:55:07,351 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-18 15:55:07,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.45 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 913.4 MB in the end (delta: 45.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:55:07,352 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.07 ms. Allocated memory is still 1.0 GB. Free memory is still 913.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:55:07,352 INFO L168 Benchmark]: Boogie Preprocessor took 54.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 913.4 MB in the beginning and 1.1 GB in the end (delta: -217.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 15:55:07,352 INFO L168 Benchmark]: RCFGBuilder took 162.57 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:55:07,353 INFO L168 Benchmark]: TraceAbstraction took 467.86 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: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:55:07,356 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 198.45 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 913.4 MB in the end (delta: 45.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.07 ms. Allocated memory is still 1.0 GB. Free memory is still 913.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 913.4 MB in the beginning and 1.1 GB in the end (delta: -217.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 162.57 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 467.86 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: 46.7 MB). Peak memory consumption was 46.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 15:55:08,784 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:55:08,786 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:55:08,794 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:55:08,794 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:55:08,795 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:55:08,796 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:55:08,797 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:55:08,798 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:55:08,799 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:55:08,799 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:55:08,799 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:55:08,800 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:55:08,801 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:55:08,801 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:55:08,802 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:55:08,802 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:55:08,803 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:55:08,805 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:55:08,806 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:55:08,806 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:55:08,807 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:55:08,809 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:55:08,809 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:55:08,809 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:55:08,810 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:55:08,810 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:55:08,811 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:55:08,811 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:55:08,812 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:55:08,812 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:55:08,813 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:55:08,813 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:55:08,813 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:55:08,813 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:55:08,814 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:55:08,814 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 15:55:08,824 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:55:08,824 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:55:08,825 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:55:08,825 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:55:08,825 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:55:08,825 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:55:08,825 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:55:08,825 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:55:08,825 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:55:08,825 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:55:08,826 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:55:08,826 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:55:08,826 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:55:08,826 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:55:08,826 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:55:08,827 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:55:08,827 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:55:08,827 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 15:55:08,827 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 15:55:08,827 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:55:08,827 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:55:08,827 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:55:08,827 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:55:08,828 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:55:08,828 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:55:08,828 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:55:08,828 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:55:08,828 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:55:08,828 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:55:08,828 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:55:08,828 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:55:08,829 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 15:55:08,829 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:55:08,829 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 15:55:08,829 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 15:55:08,829 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_9095c3ae-e419-46d0-be71-3a66b346697e/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 -> 904a0e6086e85df99de143ae018a34e00ed12958 [2018-11-18 15:55:08,859 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:55:08,868 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:55:08,870 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:55:08,872 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:55:08,872 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:55:08,872 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/../../sv-benchmarks/c/loops/heavy_false-unreach-call.c [2018-11-18 15:55:08,914 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/data/00cb0b2ed/3a3bd273c6b64fc2afc76861b923c0dd/FLAGbdaae5806 [2018-11-18 15:55:09,312 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:55:09,313 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/sv-benchmarks/c/loops/heavy_false-unreach-call.c [2018-11-18 15:55:09,316 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/data/00cb0b2ed/3a3bd273c6b64fc2afc76861b923c0dd/FLAGbdaae5806 [2018-11-18 15:55:09,326 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/data/00cb0b2ed/3a3bd273c6b64fc2afc76861b923c0dd [2018-11-18 15:55:09,328 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:55:09,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:55:09,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:55:09,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:55:09,333 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:55:09,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:55:09" (1/1) ... [2018-11-18 15:55:09,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d2848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:09, skipping insertion in model container [2018-11-18 15:55:09,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:55:09" (1/1) ... [2018-11-18 15:55:09,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:55:09,360 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:55:09,481 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:55:09,511 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:55:09,524 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:55:09,568 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:55:09,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:09 WrapperNode [2018-11-18 15:55:09,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:55:09,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:55:09,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:55:09,569 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:55:09,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:09" (1/1) ... [2018-11-18 15:55:09,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:09" (1/1) ... [2018-11-18 15:55:09,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:55:09,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:55:09,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:55:09,585 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:55:09,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:09" (1/1) ... [2018-11-18 15:55:09,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:09" (1/1) ... [2018-11-18 15:55:09,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:09" (1/1) ... [2018-11-18 15:55:09,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:09" (1/1) ... [2018-11-18 15:55:09,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:09" (1/1) ... [2018-11-18 15:55:09,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:09" (1/1) ... [2018-11-18 15:55:09,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:09" (1/1) ... [2018-11-18 15:55:09,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:55:09,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:55:09,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:55:09,602 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:55:09,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/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 [2018-11-18 15:55:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:55:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:55:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:55:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2018-11-18 15:55:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:55:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:55:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:55:09,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:55:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2018-11-18 15:55:09,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-11-18 15:55:09,808 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:55:09,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:55:09 BoogieIcfgContainer [2018-11-18 15:55:09,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:55:09,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:55:09,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:55:09,811 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:55:09,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:55:09" (1/3) ... [2018-11-18 15:55:09,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@426db648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:55:09, skipping insertion in model container [2018-11-18 15:55:09,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:09" (2/3) ... [2018-11-18 15:55:09,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@426db648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:55:09, skipping insertion in model container [2018-11-18 15:55:09,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:55:09" (3/3) ... [2018-11-18 15:55:09,814 INFO L112 eAbstractionObserver]: Analyzing ICFG heavy_false-unreach-call.c [2018-11-18 15:55:09,823 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:55:09,829 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:55:09,838 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:55:09,856 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:55:09,857 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:55:09,857 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:55:09,857 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:55:09,857 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:55:09,857 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:55:09,857 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:55:09,857 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:55:09,857 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:55:09,867 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-18 15:55:09,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 15:55:09,871 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:09,872 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:55:09,875 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:09,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:09,878 INFO L82 PathProgramCache]: Analyzing trace with hash -795757055, now seen corresponding path program 1 times [2018-11-18 15:55:09,881 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:55:09,881 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 15:55:09,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:09,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:09,933 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:55:09,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:55:09,946 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:55:09,948 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:55:09,950 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:55:09,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:55:09,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:55:09,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:55:09,961 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-11-18 15:55:09,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:09,976 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2018-11-18 15:55:09,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:55:09,977 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-11-18 15:55:09,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:09,984 INFO L225 Difference]: With dead ends: 38 [2018-11-18 15:55:09,984 INFO L226 Difference]: Without dead ends: 18 [2018-11-18 15:55:09,986 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:55:09,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-18 15:55:10,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-18 15:55:10,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-18 15:55:10,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-18 15:55:10,007 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 9 [2018-11-18 15:55:10,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:10,008 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-18 15:55:10,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:55:10,008 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-18 15:55:10,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 15:55:10,008 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:10,009 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:55:10,009 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:10,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:10,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1100257748, now seen corresponding path program 1 times [2018-11-18 15:55:10,010 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:55:10,010 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 15:55:10,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:10,053 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:55:10,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:55:10,065 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:55:10,065 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:55:10,066 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:55:10,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:55:10,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:55:10,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:55:10,067 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2018-11-18 15:55:10,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:10,089 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2018-11-18 15:55:10,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:55:10,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 15:55:10,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:10,091 INFO L225 Difference]: With dead ends: 30 [2018-11-18 15:55:10,091 INFO L226 Difference]: Without dead ends: 27 [2018-11-18 15:55:10,092 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:55:10,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-18 15:55:10,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 20. [2018-11-18 15:55:10,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 15:55:10,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-18 15:55:10,096 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 10 [2018-11-18 15:55:10,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:10,096 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-18 15:55:10,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:55:10,096 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-18 15:55:10,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 15:55:10,096 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:10,097 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:55:10,097 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:10,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:10,097 INFO L82 PathProgramCache]: Analyzing trace with hash -2045733446, now seen corresponding path program 1 times [2018-11-18 15:55:10,097 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:55:10,097 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 15:55:10,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:10,135 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:55:10,143 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:55:10,144 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:55:10,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:55:10,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:55:10,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:55:10,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:55:10,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:55:10,146 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 3 states. [2018-11-18 15:55:10,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:10,183 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2018-11-18 15:55:10,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:55:10,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 15:55:10,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:10,185 INFO L225 Difference]: With dead ends: 38 [2018-11-18 15:55:10,185 INFO L226 Difference]: Without dead ends: 26 [2018-11-18 15:55:10,186 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:55:10,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-18 15:55:10,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2018-11-18 15:55:10,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 15:55:10,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2018-11-18 15:55:10,190 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 15 [2018-11-18 15:55:10,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:10,191 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2018-11-18 15:55:10,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:55:10,191 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2018-11-18 15:55:10,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 15:55:10,191 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:10,191 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:55:10,192 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:10,192 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:10,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1871261250, now seen corresponding path program 1 times [2018-11-18 15:55:10,192 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:55:10,192 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 15:55:10,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:10,224 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:55:10,232 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:55:10,232 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:55:10,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:55:10,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:55:10,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:55:10,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:55:10,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:55:10,237 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 3 states. [2018-11-18 15:55:10,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:10,266 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-11-18 15:55:10,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:55:10,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-11-18 15:55:10,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:10,270 INFO L225 Difference]: With dead ends: 39 [2018-11-18 15:55:10,270 INFO L226 Difference]: Without dead ends: 25 [2018-11-18 15:55:10,270 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:55:10,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-18 15:55:10,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2018-11-18 15:55:10,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-18 15:55:10,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2018-11-18 15:55:10,274 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 20 [2018-11-18 15:55:10,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:10,274 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2018-11-18 15:55:10,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:55:10,274 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2018-11-18 15:55:10,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 15:55:10,275 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:10,275 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:55:10,275 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:10,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:10,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1630732591, now seen corresponding path program 1 times [2018-11-18 15:55:10,276 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:55:10,276 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 15:55:10,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:10,320 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:55:10,329 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:55:10,330 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:55:10,354 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:55:10,357 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:55:10,357 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:55:10,366 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:55:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:55:10,384 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:55:10,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 15:55:10,407 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:55:10,480 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-18 15:55:10,505 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 15:55:10,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 5] total 11 [2018-11-18 15:55:10,506 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 15:55:10,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 15:55:10,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:55:10,506 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 11 states. [2018-11-18 15:55:10,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:10,904 INFO L93 Difference]: Finished difference Result 115 states and 140 transitions. [2018-11-18 15:55:10,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-18 15:55:10,905 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2018-11-18 15:55:10,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:10,906 INFO L225 Difference]: With dead ends: 115 [2018-11-18 15:55:10,906 INFO L226 Difference]: Without dead ends: 99 [2018-11-18 15:55:10,906 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 81 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=230, Invalid=526, Unknown=0, NotChecked=0, Total=756 [2018-11-18 15:55:10,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-11-18 15:55:10,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2018-11-18 15:55:10,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2018-11-18 15:55:10,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 107 transitions. [2018-11-18 15:55:10,919 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 107 transitions. Word has length 23 [2018-11-18 15:55:10,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:10,920 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 107 transitions. [2018-11-18 15:55:10,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 15:55:10,920 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 107 transitions. [2018-11-18 15:55:10,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2018-11-18 15:55:10,922 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:10,922 INFO L375 BasicCegarLoop]: trace histogram [20, 16, 16, 8, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:55:10,922 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:10,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:10,922 INFO L82 PathProgramCache]: Analyzing trace with hash -662443124, now seen corresponding path program 2 times [2018-11-18 15:55:10,923 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:55:10,923 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 15:55:10,947 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 15:55:11,027 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 15:55:11,027 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:55:11,040 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:55:11,096 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 220 proven. 26 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2018-11-18 15:55:11,096 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:55:11,175 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 220 proven. 26 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2018-11-18 15:55:11,177 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:55:11,177 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:55:11,182 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 15:55:11,226 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 15:55:11,226 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:55:11,232 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:55:11,280 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 233 proven. 2 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2018-11-18 15:55:11,280 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:55:11,339 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 233 proven. 2 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2018-11-18 15:55:11,355 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 15:55:11,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 4, 5] total 17 [2018-11-18 15:55:11,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-18 15:55:11,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-18 15:55:11,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2018-11-18 15:55:11,356 INFO L87 Difference]: Start difference. First operand 99 states and 107 transitions. Second operand 17 states. [2018-11-18 15:55:12,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:12,615 INFO L93 Difference]: Finished difference Result 680 states and 816 transitions. [2018-11-18 15:55:12,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2018-11-18 15:55:12,616 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 98 [2018-11-18 15:55:12,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:12,619 INFO L225 Difference]: With dead ends: 680 [2018-11-18 15:55:12,619 INFO L226 Difference]: Without dead ends: 591 [2018-11-18 15:55:12,620 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 375 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=845, Invalid=2461, Unknown=0, NotChecked=0, Total=3306 [2018-11-18 15:55:12,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2018-11-18 15:55:12,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2018-11-18 15:55:12,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2018-11-18 15:55:12,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 611 transitions. [2018-11-18 15:55:12,669 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 611 transitions. Word has length 98 [2018-11-18 15:55:12,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:12,670 INFO L480 AbstractCegarLoop]: Abstraction has 591 states and 611 transitions. [2018-11-18 15:55:12,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-18 15:55:12,670 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 611 transitions. [2018-11-18 15:55:12,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 591 [2018-11-18 15:55:12,682 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:12,683 INFO L375 BasicCegarLoop]: trace histogram [176, 160, 160, 20, 16, 16, 16, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:55:12,685 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:12,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:12,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1913895764, now seen corresponding path program 3 times [2018-11-18 15:55:12,687 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:55:12,687 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 15:55:12,708 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-18 15:55:18,266 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2018-11-18 15:55:18,266 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:55:18,314 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:55:18,531 INFO L134 CoverageAnalysis]: Checked inductivity of 44046 backedges. 5194 proven. 155 refuted. 0 times theorem prover too weak. 38697 trivial. 0 not checked. [2018-11-18 15:55:18,531 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:55:19,072 INFO L134 CoverageAnalysis]: Checked inductivity of 44046 backedges. 5194 proven. 155 refuted. 0 times theorem prover too weak. 38697 trivial. 0 not checked. [2018-11-18 15:55:19,076 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:55:19,076 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:55:19,082 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 15:55:49,215 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2018-11-18 15:55:49,215 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 15:55:49,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:55:49,345 INFO L134 CoverageAnalysis]: Checked inductivity of 44046 backedges. 5194 proven. 155 refuted. 0 times theorem prover too weak. 38697 trivial. 0 not checked. [2018-11-18 15:55:49,345 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:55:49,489 INFO L134 CoverageAnalysis]: Checked inductivity of 44046 backedges. 5194 proven. 155 refuted. 0 times theorem prover too weak. 38697 trivial. 0 not checked. [2018-11-18 15:55:49,520 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2018-11-18 15:55:49,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 13, 14] total 25 [2018-11-18 15:55:49,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-11-18 15:55:49,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-11-18 15:55:49,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=420, Unknown=0, NotChecked=0, Total=600 [2018-11-18 15:55:49,522 INFO L87 Difference]: Start difference. First operand 591 states and 611 transitions. Second operand 25 states. [2018-11-18 15:55:50,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:55:50,993 INFO L93 Difference]: Finished difference Result 1716 states and 1947 transitions. [2018-11-18 15:55:50,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-18 15:55:50,995 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 590 [2018-11-18 15:55:50,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:55:50,997 INFO L225 Difference]: With dead ends: 1716 [2018-11-18 15:55:50,998 INFO L226 Difference]: Without dead ends: 1167 [2018-11-18 15:55:50,999 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2370 GetRequests, 2334 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=454, Invalid=806, Unknown=0, NotChecked=0, Total=1260 [2018-11-18 15:55:51,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1167 states. [2018-11-18 15:55:51,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1167 to 1167. [2018-11-18 15:55:51,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1167 states. [2018-11-18 15:55:51,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1187 transitions. [2018-11-18 15:55:51,061 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1187 transitions. Word has length 590 [2018-11-18 15:55:51,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:55:51,061 INFO L480 AbstractCegarLoop]: Abstraction has 1167 states and 1187 transitions. [2018-11-18 15:55:51,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-11-18 15:55:51,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1187 transitions. [2018-11-18 15:55:51,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1167 [2018-11-18 15:55:51,083 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:55:51,083 INFO L375 BasicCegarLoop]: trace histogram [368, 352, 352, 20, 16, 16, 16, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:55:51,083 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:55:51,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:55:51,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1826263892, now seen corresponding path program 4 times [2018-11-18 15:55:51,085 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 15:55:51,085 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9095c3ae-e419-46d0-be71-3a66b346697e/bin-2019/utaipan/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 15:55:51,099 INFO L101 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-18 15:55:51,411 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 15:55:51,411 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:358) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.partitionStmtsAccordingToConstantSize(AnnotateAndAsserterWithStmtOrderPrioritization.java:377) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.annotateAndAssertStmtsAccording5Heuristic(AnnotateAndAsserterWithStmtOrderPrioritization.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserterWithStmtOrderPrioritization.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java: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) [2018-11-18 15:55:51,414 INFO L168 Benchmark]: Toolchain (without parser) took 42085.30 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 356.0 MB). Free memory was 949.7 MB in the beginning and 954.9 MB in the end (delta: -5.2 MB). Peak memory consumption was 350.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:55:51,415 INFO L168 Benchmark]: CDTParser took 0.17 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. [2018-11-18 15:55:51,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.18 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 901.4 MB in the end (delta: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:55:51,416 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.29 ms. Allocated memory is still 1.0 GB. Free memory is still 901.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:55:51,416 INFO L168 Benchmark]: Boogie Preprocessor took 16.59 ms. Allocated memory is still 1.0 GB. Free memory is still 901.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:55:51,416 INFO L168 Benchmark]: RCFGBuilder took 206.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 901.4 MB in the beginning and 1.1 GB in the end (delta: -215.6 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:55:51,417 INFO L168 Benchmark]: TraceAbstraction took 41604.26 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 216.0 MB). Free memory was 1.1 GB in the beginning and 954.9 MB in the end (delta: 162.1 MB). Peak memory consumption was 378.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:55:51,419 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 239.18 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 901.4 MB in the end (delta: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.29 ms. Allocated memory is still 1.0 GB. Free memory is still 901.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.59 ms. Allocated memory is still 1.0 GB. Free memory is still 901.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 206.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 901.4 MB in the beginning and 1.1 GB in the end (delta: -215.6 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 41604.26 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 216.0 MB). Free memory was 1.1 GB in the beginning and 954.9 MB in the end (delta: 162.1 MB). Peak memory consumption was 378.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: ConstantTerm is neither BigInter nor BigDecimal, therefore comparison is not possible!: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.AnnotateAndAsserterWithStmtOrderPrioritization.termHasConstantGreaterThan(AnnotateAndAsserterWithStmtOrderPrioritization.java:358) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...