./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loops/n.c40_true-unreach-call_true-termination.i --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_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/n.c40_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/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 a2dbe578aaa8f4d94b72aa1723f297c002a26229 .................................................................................................................................................................................................................................................................................................................................................................................. 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_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/n.c40_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/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 a2dbe578aaa8f4d94b72aa1723f297c002a26229 ................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:21:09,338 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:21:09,339 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:21:09,347 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:21:09,347 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:21:09,348 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:21:09,348 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:21:09,350 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:21:09,351 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:21:09,352 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:21:09,352 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:21:09,353 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:21:09,353 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:21:09,354 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:21:09,355 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:21:09,355 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:21:09,356 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:21:09,358 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:21:09,359 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:21:09,360 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:21:09,361 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:21:09,362 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:21:09,364 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:21:09,364 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:21:09,364 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:21:09,365 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:21:09,365 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:21:09,366 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:21:09,367 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:21:09,368 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:21:09,368 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:21:09,368 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:21:09,369 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:21:09,369 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:21:09,369 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:21:09,371 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:21:09,371 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 11:21:09,382 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:21:09,382 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:21:09,382 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:21:09,383 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:21:09,383 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:21:09,383 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:21:09,383 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:21:09,383 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 11:21:09,383 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:21:09,383 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:21:09,384 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 11:21:09,384 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 11:21:09,384 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:21:09,384 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:21:09,384 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:21:09,384 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:21:09,384 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:21:09,385 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:21:09,385 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:21:09,385 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:21:09,385 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:21:09,385 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:21:09,385 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:21:09,385 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:21:09,385 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:21:09,386 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:21:09,386 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:21:09,386 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:21:09,386 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:21:09,386 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:21:09,386 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:21:09,386 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:21:09,387 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:21:09,387 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 11:21:09,387 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:21:09,387 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:21:09,387 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 11:21:09,387 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_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/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 -> a2dbe578aaa8f4d94b72aa1723f297c002a26229 [2018-11-18 11:21:09,411 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:21:09,418 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:21:09,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:21:09,421 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:21:09,421 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:21:09,421 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/../../sv-benchmarks/c/loops/n.c40_true-unreach-call_true-termination.i [2018-11-18 11:21:09,456 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/data/0ef1c80fb/200b38dea6f443539c62d08bea355c17/FLAGb9cf41d2a [2018-11-18 11:21:09,848 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:21:09,848 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/sv-benchmarks/c/loops/n.c40_true-unreach-call_true-termination.i [2018-11-18 11:21:09,852 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/data/0ef1c80fb/200b38dea6f443539c62d08bea355c17/FLAGb9cf41d2a [2018-11-18 11:21:09,862 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/data/0ef1c80fb/200b38dea6f443539c62d08bea355c17 [2018-11-18 11:21:09,864 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:21:09,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:21:09,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:21:09,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:21:09,867 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:21:09,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:21:09" (1/1) ... [2018-11-18 11:21:09,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@527ba39d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:09, skipping insertion in model container [2018-11-18 11:21:09,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:21:09" (1/1) ... [2018-11-18 11:21:09,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:21:09,887 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:21:09,994 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:21:09,999 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:21:10,009 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:21:10,022 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:21:10,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:10 WrapperNode [2018-11-18 11:21:10,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:21:10,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:21:10,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:21:10,023 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:21:10,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:10" (1/1) ... [2018-11-18 11:21:10,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:10" (1/1) ... [2018-11-18 11:21:10,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:21:10,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:21:10,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:21:10,043 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:21:10,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:10" (1/1) ... [2018-11-18 11:21:10,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:10" (1/1) ... [2018-11-18 11:21:10,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:10" (1/1) ... [2018-11-18 11:21:10,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:10" (1/1) ... [2018-11-18 11:21:10,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:10" (1/1) ... [2018-11-18 11:21:10,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:10" (1/1) ... [2018-11-18 11:21:10,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:10" (1/1) ... [2018-11-18 11:21:10,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:21:10,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:21:10,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:21:10,063 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:21:10,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/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 11:21:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 11:21:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:21:10,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:21:10,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:21:10,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:21:10,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:21:10,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 11:21:10,134 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:21:10,134 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:21:10,261 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:21:10,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:21:10 BoogieIcfgContainer [2018-11-18 11:21:10,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:21:10,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:21:10,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:21:10,265 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:21:10,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:21:09" (1/3) ... [2018-11-18 11:21:10,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e617b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:21:10, skipping insertion in model container [2018-11-18 11:21:10,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:10" (2/3) ... [2018-11-18 11:21:10,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e617b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:21:10, skipping insertion in model container [2018-11-18 11:21:10,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:21:10" (3/3) ... [2018-11-18 11:21:10,268 INFO L112 eAbstractionObserver]: Analyzing ICFG n.c40_true-unreach-call_true-termination.i [2018-11-18 11:21:10,276 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:21:10,283 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:21:10,298 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:21:10,325 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:21:10,325 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:21:10,325 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:21:10,325 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:21:10,325 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:21:10,325 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:21:10,325 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:21:10,326 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:21:10,341 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-18 11:21:10,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 11:21:10,346 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:21:10,347 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:21:10,349 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:21:10,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:21:10,354 INFO L82 PathProgramCache]: Analyzing trace with hash -692123559, now seen corresponding path program 1 times [2018-11-18 11:21:10,356 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:21:10,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:21:10,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:21:10,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:21:10,395 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:21:10,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:21:10,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:21:10,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:21:10,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:21:10,463 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:21:10,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:21:10,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:21:10,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:21:10,480 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2018-11-18 11:21:10,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:21:10,490 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2018-11-18 11:21:10,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:21:10,491 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-18 11:21:10,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:21:10,496 INFO L225 Difference]: With dead ends: 29 [2018-11-18 11:21:10,497 INFO L226 Difference]: Without dead ends: 14 [2018-11-18 11:21:10,499 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 11:21:10,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-18 11:21:10,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-18 11:21:10,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 11:21:10,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-18 11:21:10,521 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-11-18 11:21:10,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:21:10,521 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-18 11:21:10,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:21:10,521 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-18 11:21:10,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 11:21:10,522 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:21:10,522 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:21:10,522 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:21:10,522 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:21:10,523 INFO L82 PathProgramCache]: Analyzing trace with hash 925435379, now seen corresponding path program 1 times [2018-11-18 11:21:10,523 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:21:10,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:21:10,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:21:10,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:21:10,524 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:21:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:21:10,573 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 11:21:10,573 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:21:10,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:21:10,573 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:21:10,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:21:10,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:21:10,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:21:10,575 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 3 states. [2018-11-18 11:21:10,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:21:10,597 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-11-18 11:21:10,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:21:10,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-18 11:21:10,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:21:10,598 INFO L225 Difference]: With dead ends: 22 [2018-11-18 11:21:10,598 INFO L226 Difference]: Without dead ends: 17 [2018-11-18 11:21:10,599 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 11:21:10,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-18 11:21:10,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-18 11:21:10,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-18 11:21:10,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-11-18 11:21:10,602 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 13 [2018-11-18 11:21:10,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:21:10,602 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-11-18 11:21:10,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:21:10,602 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-11-18 11:21:10,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 11:21:10,602 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:21:10,603 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:21:10,603 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:21:10,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:21:10,603 INFO L82 PathProgramCache]: Analyzing trace with hash -2086497215, now seen corresponding path program 1 times [2018-11-18 11:21:10,603 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:21:10,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:21:10,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:21:10,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:21:10,604 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:21:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:21:10,712 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:21:10,712 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:21:10,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:21:10,712 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:21:10,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:21:10,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:21:10,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:21:10,713 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 5 states. [2018-11-18 11:21:10,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:21:10,735 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-11-18 11:21:10,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:21:10,735 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-11-18 11:21:10,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:21:10,735 INFO L225 Difference]: With dead ends: 17 [2018-11-18 11:21:10,736 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 11:21:10,736 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:21:10,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 11:21:10,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 11:21:10,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 11:21:10,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 11:21:10,737 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-11-18 11:21:10,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:21:10,737 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:21:10,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:21:10,737 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:21:10,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 11:21:10,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 11:21:10,777 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:21:10,777 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:21:10,777 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:21:10,777 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:21:10,777 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~i~0 0) (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#x~0.base|))) [2018-11-18 11:21:10,778 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:21:10,778 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:21:10,778 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 8 23) no Hoare annotation was computed. [2018-11-18 11:21:10,778 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-11-18 11:21:10,778 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 8 23) no Hoare annotation was computed. [2018-11-18 11:21:10,778 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2018-11-18 11:21:10,778 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 8 23) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (= 0 |old(~i~0)|)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (and (= ~i~0 0) (= .cse0 (select |#memory_int| |~#x~0.base|))))) [2018-11-18 11:21:10,778 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-18 11:21:10,779 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 20) no Hoare annotation was computed. [2018-11-18 11:21:10,779 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 20) no Hoare annotation was computed. [2018-11-18 11:21:10,779 INFO L425 ceAbstractionStarter]: For program point L12-1(lines 12 15) no Hoare annotation was computed. [2018-11-18 11:21:10,779 INFO L425 ceAbstractionStarter]: For program point L12-2(lines 12 15) no Hoare annotation was computed. [2018-11-18 11:21:10,779 INFO L421 ceAbstractionStarter]: At program point L12-4(lines 12 15) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (= 0 |old(~i~0)|)) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (and (= ~i~0 0) (= .cse0 (select |#memory_int| |~#x~0.base|))))) [2018-11-18 11:21:10,779 INFO L425 ceAbstractionStarter]: For program point L12-5(lines 12 15) no Hoare annotation was computed. [2018-11-18 11:21:10,782 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:373) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:108) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:92) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:537) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:194) 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 11:21:10,787 INFO L168 Benchmark]: Toolchain (without parser) took 922.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 959.6 MB in the beginning and 1.1 GB in the end (delta: -107.6 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:21:10,789 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:21:10,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.04 ms. Allocated memory is still 1.0 GB. Free memory was 959.6 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:21:10,790 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.31 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:21:10,790 INFO L168 Benchmark]: Boogie Preprocessor took 19.25 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:21:10,791 INFO L168 Benchmark]: RCFGBuilder took 199.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:21:10,791 INFO L168 Benchmark]: TraceAbstraction took 524.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:21:10,794 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 157.04 ms. Allocated memory is still 1.0 GB. Free memory was 959.6 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.31 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.25 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 199.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 524.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 53.7 MB). Peak memory consumption was 53.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) 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 11:21:12,163 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:21:12,164 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:21:12,171 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:21:12,172 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:21:12,172 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:21:12,173 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:21:12,174 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:21:12,175 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:21:12,176 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:21:12,177 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:21:12,177 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:21:12,177 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:21:12,179 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:21:12,179 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:21:12,180 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:21:12,180 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:21:12,182 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:21:12,183 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:21:12,185 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:21:12,185 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:21:12,187 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:21:12,188 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:21:12,189 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:21:12,189 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:21:12,189 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:21:12,191 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:21:12,191 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:21:12,192 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:21:12,193 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:21:12,193 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:21:12,193 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:21:12,193 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:21:12,193 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:21:12,194 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:21:12,195 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:21:12,195 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 11:21:12,206 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:21:12,206 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:21:12,207 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:21:12,207 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:21:12,207 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:21:12,207 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:21:12,207 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:21:12,207 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:21:12,207 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:21:12,207 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:21:12,208 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:21:12,208 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:21:12,208 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:21:12,208 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:21:12,208 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:21:12,208 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:21:12,208 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:21:12,209 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 11:21:12,209 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 11:21:12,209 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:21:12,209 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:21:12,209 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:21:12,209 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:21:12,209 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:21:12,209 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:21:12,210 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:21:12,210 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:21:12,210 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:21:12,210 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:21:12,210 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:21:12,210 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:21:12,210 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 11:21:12,210 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:21:12,211 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 11:21:12,211 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 11:21:12,211 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_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/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 -> a2dbe578aaa8f4d94b72aa1723f297c002a26229 [2018-11-18 11:21:12,238 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:21:12,246 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:21:12,248 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:21:12,249 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:21:12,249 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:21:12,250 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/../../sv-benchmarks/c/loops/n.c40_true-unreach-call_true-termination.i [2018-11-18 11:21:12,285 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/data/0d6daa238/76211b130144413296791cda87f78757/FLAGc6d8ce93c [2018-11-18 11:21:12,674 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:21:12,675 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/sv-benchmarks/c/loops/n.c40_true-unreach-call_true-termination.i [2018-11-18 11:21:12,678 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/data/0d6daa238/76211b130144413296791cda87f78757/FLAGc6d8ce93c [2018-11-18 11:21:12,687 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/bin-2019/utaipan/data/0d6daa238/76211b130144413296791cda87f78757 [2018-11-18 11:21:12,689 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:21:12,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:21:12,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:21:12,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:21:12,694 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:21:12,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:21:12" (1/1) ... [2018-11-18 11:21:12,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1420e887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:12, skipping insertion in model container [2018-11-18 11:21:12,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:21:12" (1/1) ... [2018-11-18 11:21:12,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:21:12,718 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:21:12,842 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:21:12,847 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:21:12,860 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:21:12,878 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:21:12,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:12 WrapperNode [2018-11-18 11:21:12,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:21:12,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:21:12,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:21:12,880 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:21:12,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:12" (1/1) ... [2018-11-18 11:21:12,890 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:12" (1/1) ... [2018-11-18 11:21:12,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:21:12,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:21:12,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:21:12,895 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:21:12,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:12" (1/1) ... [2018-11-18 11:21:12,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:12" (1/1) ... [2018-11-18 11:21:12,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:12" (1/1) ... [2018-11-18 11:21:12,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:12" (1/1) ... [2018-11-18 11:21:12,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:12" (1/1) ... [2018-11-18 11:21:12,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:12" (1/1) ... [2018-11-18 11:21:12,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:12" (1/1) ... [2018-11-18 11:21:12,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:21:12,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:21:12,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:21:12,915 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:21:12,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/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 11:21:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:21:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:21:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:21:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2018-11-18 11:21:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:21:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:21:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:21:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:21:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2018-11-18 11:21:13,128 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:21:13,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:21:13 BoogieIcfgContainer [2018-11-18 11:21:13,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:21:13,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:21:13,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:21:13,131 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:21:13,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:21:12" (1/3) ... [2018-11-18 11:21:13,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112a4113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:21:13, skipping insertion in model container [2018-11-18 11:21:13,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:21:12" (2/3) ... [2018-11-18 11:21:13,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@112a4113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:21:13, skipping insertion in model container [2018-11-18 11:21:13,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:21:13" (3/3) ... [2018-11-18 11:21:13,133 INFO L112 eAbstractionObserver]: Analyzing ICFG n.c40_true-unreach-call_true-termination.i [2018-11-18 11:21:13,141 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:21:13,146 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:21:13,156 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:21:13,174 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:21:13,174 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:21:13,175 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:21:13,175 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:21:13,175 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:21:13,175 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:21:13,175 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:21:13,175 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:21:13,175 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:21:13,184 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-18 11:21:13,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 11:21:13,187 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:21:13,188 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:21:13,189 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:21:13,192 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:21:13,193 INFO L82 PathProgramCache]: Analyzing trace with hash -692123559, now seen corresponding path program 1 times [2018-11-18 11:21:13,195 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:21:13,195 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/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 11:21:13,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:21:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:21:13,254 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:21:13,265 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 11:21:13,265 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (2)] Exception during sending of exit command (exit): Broken pipe [2018-11-18 11:21:13,272 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:21:13,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:21:13,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:21:13,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:21:13,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:21:13,285 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2018-11-18 11:21:13,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:21:13,297 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2018-11-18 11:21:13,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:21:13,298 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-18 11:21:13,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:21:13,306 INFO L225 Difference]: With dead ends: 29 [2018-11-18 11:21:13,306 INFO L226 Difference]: Without dead ends: 14 [2018-11-18 11:21:13,309 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 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 11:21:13,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-18 11:21:13,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-18 11:21:13,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 11:21:13,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-18 11:21:13,330 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-11-18 11:21:13,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:21:13,331 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-18 11:21:13,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:21:13,331 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-18 11:21:13,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 11:21:13,331 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:21:13,331 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:21:13,332 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:21:13,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:21:13,332 INFO L82 PathProgramCache]: Analyzing trace with hash 925435379, now seen corresponding path program 1 times [2018-11-18 11:21:13,332 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:21:13,333 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/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 11:21:13,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:21:13,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:21:13,387 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:21:13,405 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 11:21:13,405 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:21:13,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:21:13,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:21:13,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:21:13,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:21:13,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:21:13,408 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 3 states. [2018-11-18 11:21:13,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:21:13,438 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-11-18 11:21:13,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:21:13,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-18 11:21:13,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:21:13,439 INFO L225 Difference]: With dead ends: 22 [2018-11-18 11:21:13,439 INFO L226 Difference]: Without dead ends: 17 [2018-11-18 11:21:13,440 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 11:21:13,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-18 11:21:13,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-18 11:21:13,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-18 11:21:13,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-11-18 11:21:13,444 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 13 [2018-11-18 11:21:13,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:21:13,444 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-11-18 11:21:13,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:21:13,444 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-11-18 11:21:13,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 11:21:13,444 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:21:13,444 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:21:13,445 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:21:13,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:21:13,445 INFO L82 PathProgramCache]: Analyzing trace with hash -2086497215, now seen corresponding path program 1 times [2018-11-18 11:21:13,445 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 11:21:13,445 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9c3b4de1-bdaa-4a89-bdcb-4dc6879ec13c/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 11:21:13,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:21:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:21:13,519 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:21:13,540 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 11:21:13,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-11-18 11:21:13,558 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 11:21:13,561 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:21:13,579 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 14 [2018-11-18 11:21:13,590 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 11:21:13,591 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-11-18 11:21:13,592 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 11:21:13,599 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 11:21:13,608 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 11:21:13,609 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:23, output treesize:17 [2018-11-18 11:21:14,971 WARN L180 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 14 [2018-11-18 11:21:14,984 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 11:21:14,985 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 24 [2018-11-18 11:21:14,986 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 11:21:14,992 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 11:21:14,992 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:27, output treesize:9 [2018-11-18 11:21:15,004 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:21:15,005 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:21:15,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:21:15,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 11:21:15,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:21:15,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:21:15,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:21:15,007 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 4 states. [2018-11-18 11:21:17,033 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 22 [2018-11-18 11:21:17,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:21:17,035 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-11-18 11:21:17,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:21:17,035 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-11-18 11:21:17,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:21:17,035 INFO L225 Difference]: With dead ends: 17 [2018-11-18 11:21:17,035 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 11:21:17,036 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:21:17,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 11:21:17,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 11:21:17,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 11:21:17,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 11:21:17,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-11-18 11:21:17,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:21:17,036 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:21:17,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:21:17,037 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:21:17,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 11:21:17,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 11:21:19,074 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 17 [2018-11-18 11:21:23,103 WARN L180 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 31 [2018-11-18 11:21:27,135 WARN L180 SmtUtils]: Spent 4.03 s on a formula simplification that was a NOOP. DAG size: 31 [2018-11-18 11:21:27,137 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:21:27,137 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:21:27,137 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:21:27,137 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:21:27,137 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000) (select |#memory_int| |~#x~0.base|)) (exists ((|~#y~0.base| (_ BitVec 32))) (and (not (= |~#x~0.base| |~#y~0.base|)) (= (select |#memory_int| |~#y~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000)))) (= (_ bv0 32) ~i~0)) [2018-11-18 11:21:27,137 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:21:27,137 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:21:27,137 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 8 23) no Hoare annotation was computed. [2018-11-18 11:21:27,138 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2018-11-18 11:21:27,138 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-11-18 11:21:27,138 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 8 23) no Hoare annotation was computed. [2018-11-18 11:21:27,138 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 8 23) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000))) (or (and (= .cse0 (select |#memory_int| |~#x~0.base|)) (exists ((|~#y~0.base| (_ BitVec 32))) (and (not (= |~#x~0.base| |~#y~0.base|)) (= (select |#memory_int| |~#y~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000)))) (= (_ bv0 32) ~i~0)) (forall ((|~#y~0.base| (_ BitVec 32))) (or (= |~#y~0.base| |~#x~0.base|) (not (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000) (select |old(#memory_int)| |~#y~0.base|))))) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (not (= (_ bv0 32) |old(~i~0)|)))) [2018-11-18 11:21:27,138 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-18 11:21:27,138 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 20) no Hoare annotation was computed. [2018-11-18 11:21:27,138 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 20) no Hoare annotation was computed. [2018-11-18 11:21:27,139 INFO L425 ceAbstractionStarter]: For program point L12-1(lines 12 15) no Hoare annotation was computed. [2018-11-18 11:21:27,139 INFO L425 ceAbstractionStarter]: For program point L12-2(lines 12 15) no Hoare annotation was computed. [2018-11-18 11:21:27,139 INFO L421 ceAbstractionStarter]: At program point L12-4(lines 12 15) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000))) (or (and (= .cse0 (select |#memory_int| |~#x~0.base|)) (exists ((|~#y~0.base| (_ BitVec 32))) (and (not (= |~#x~0.base| |~#y~0.base|)) (= (select |#memory_int| |~#y~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000)))) (= (_ bv0 32) ~i~0)) (forall ((|~#y~0.base| (_ BitVec 32))) (or (= |~#y~0.base| |~#x~0.base|) (not (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) #b00000000000000000000000000000000) (select |old(#memory_int)| |~#y~0.base|))))) (not (= .cse0 (select |old(#memory_int)| |~#x~0.base|))) (not (= (_ bv0 32) |old(~i~0)|)))) [2018-11-18 11:21:27,139 INFO L425 ceAbstractionStarter]: For program point L12-5(lines 12 15) no Hoare annotation was computed. [2018-11-18 11:21:27,142 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:373) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:108) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:92) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:537) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:194) 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 11:21:27,143 INFO L168 Benchmark]: Toolchain (without parser) took 14454.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 949.7 MB in the beginning and 1.0 GB in the end (delta: -69.9 MB). Peak memory consumption was 59.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:21:27,143 INFO L168 Benchmark]: CDTParser took 0.12 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 11:21:27,144 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.80 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:21:27,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.28 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:21:27,145 INFO L168 Benchmark]: Boogie Preprocessor took 19.69 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:21:27,145 INFO L168 Benchmark]: RCFGBuilder took 214.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -174.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:21:27,145 INFO L168 Benchmark]: TraceAbstraction took 14013.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 88.5 MB). Peak memory consumption was 88.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:21:27,147 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.80 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.28 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.69 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 214.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -174.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14013.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 88.5 MB). Peak memory consumption was 88.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...