./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test30_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_697976d0-a5f4-4ebd-a53a-fd455b1ca074/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_697976d0-a5f4-4ebd-a53a-fd455b1ca074/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_697976d0-a5f4-4ebd-a53a-fd455b1ca074/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_697976d0-a5f4-4ebd-a53a-fd455b1ca074/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test30_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_697976d0-a5f4-4ebd-a53a-fd455b1ca074/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_697976d0-a5f4-4ebd-a53a-fd455b1ca074/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 f3f14a8695828c11330d2be1588df37df1e498e3 ........................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:28:49,399 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:28:49,401 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:28:49,408 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:28:49,408 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:28:49,408 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:28:49,410 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:28:49,411 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:28:49,412 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:28:49,412 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:28:49,413 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:28:49,413 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:28:49,414 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:28:49,415 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:28:49,415 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:28:49,416 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:28:49,417 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:28:49,418 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:28:49,420 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:28:49,421 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:28:49,421 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:28:49,422 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:28:49,424 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:28:49,424 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:28:49,424 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:28:49,425 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:28:49,425 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:28:49,425 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:28:49,426 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:28:49,426 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:28:49,426 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:28:49,427 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:28:49,427 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:28:49,427 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:28:49,428 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:28:49,428 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:28:49,428 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_697976d0-a5f4-4ebd-a53a-fd455b1ca074/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 12:28:49,435 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:28:49,436 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:28:49,436 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:28:49,436 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:28:49,436 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:28:49,437 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:28:49,437 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:28:49,437 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:28:49,437 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:28:49,437 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:28:49,437 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:28:49,437 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:28:49,438 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:28:49,438 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:28:49,438 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:28:49,438 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:28:49,438 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:28:49,439 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:28:49,439 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:28:49,439 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:28:49,439 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:28:49,439 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:28:49,439 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:28:49,439 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:28:49,439 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:28:49,440 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:28:49,440 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:28:49,440 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:28:49,440 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:28:49,440 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:28:49,440 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:28:49,440 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:28:49,440 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:28:49,441 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:28:49,441 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:28:49,441 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:28:49,441 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:28:49,441 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_697976d0-a5f4-4ebd-a53a-fd455b1ca074/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 -> f3f14a8695828c11330d2be1588df37df1e498e3 [2018-11-18 12:28:49,466 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:28:49,475 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:28:49,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:28:49,479 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:28:49,479 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:28:49,480 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_697976d0-a5f4-4ebd-a53a-fd455b1ca074/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/test30_true-unreach-call_true-termination.c [2018-11-18 12:28:49,523 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_697976d0-a5f4-4ebd-a53a-fd455b1ca074/bin-2019/utaipan/data/a4c3a205b/e9b9e5ac672242e8a5eb87d7ccbb3403/FLAGa435c9dbb [2018-11-18 12:28:49,939 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:28:49,939 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_697976d0-a5f4-4ebd-a53a-fd455b1ca074/sv-benchmarks/c/ldv-regression/test30_true-unreach-call_true-termination.c [2018-11-18 12:28:49,944 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_697976d0-a5f4-4ebd-a53a-fd455b1ca074/bin-2019/utaipan/data/a4c3a205b/e9b9e5ac672242e8a5eb87d7ccbb3403/FLAGa435c9dbb [2018-11-18 12:28:49,955 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_697976d0-a5f4-4ebd-a53a-fd455b1ca074/bin-2019/utaipan/data/a4c3a205b/e9b9e5ac672242e8a5eb87d7ccbb3403 [2018-11-18 12:28:49,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:28:49,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:28:49,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:28:49,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:28:49,963 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:28:49,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:28:49" (1/1) ... [2018-11-18 12:28:49,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5674190a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:28:49, skipping insertion in model container [2018-11-18 12:28:49,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:28:49" (1/1) ... [2018-11-18 12:28:49,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:28:49,987 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:28:50,084 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:28:50,091 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:28:50,099 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:28:50,109 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:28:50,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:28:50 WrapperNode [2018-11-18 12:28:50,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:28:50,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:28:50,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:28:50,110 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:28:50,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:28:50" (1/1) ... [2018-11-18 12:28:50,120 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:28:50" (1/1) ... [2018-11-18 12:28:50,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:28:50,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:28:50,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:28:50,124 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:28:50,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:28:50" (1/1) ... [2018-11-18 12:28:50,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:28:50" (1/1) ... [2018-11-18 12:28:50,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:28:50" (1/1) ... [2018-11-18 12:28:50,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:28:50" (1/1) ... [2018-11-18 12:28:50,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:28:50" (1/1) ... [2018-11-18 12:28:50,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:28:50" (1/1) ... [2018-11-18 12:28:50,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:28:50" (1/1) ... [2018-11-18 12:28:50,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:28:50,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:28:50,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:28:50,141 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:28:50,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:28:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_697976d0-a5f4-4ebd-a53a-fd455b1ca074/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 12:28:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-18 12:28:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:28:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:28:50,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:28:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:28:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:28:50,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:28:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:28:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:28:50,215 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:28:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 12:28:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure assign2 [2018-11-18 12:28:50,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assign2 [2018-11-18 12:28:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-18 12:28:50,215 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2018-11-18 12:28:50,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2018-11-18 12:28:50,344 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:28:50,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:28:50 BoogieIcfgContainer [2018-11-18 12:28:50,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:28:50,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:28:50,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:28:50,347 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:28:50,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:28:49" (1/3) ... [2018-11-18 12:28:50,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2367c8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:28:50, skipping insertion in model container [2018-11-18 12:28:50,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:28:50" (2/3) ... [2018-11-18 12:28:50,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2367c8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:28:50, skipping insertion in model container [2018-11-18 12:28:50,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:28:50" (3/3) ... [2018-11-18 12:28:50,349 INFO L112 eAbstractionObserver]: Analyzing ICFG test30_true-unreach-call_true-termination.c [2018-11-18 12:28:50,357 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:28:50,362 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:28:50,375 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:28:50,398 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:28:50,398 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:28:50,398 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:28:50,398 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:28:50,398 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:28:50,399 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:28:50,399 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:28:50,399 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:28:50,408 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-18 12:28:50,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 12:28:50,411 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:28:50,412 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:28:50,413 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:28:50,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:28:50,416 INFO L82 PathProgramCache]: Analyzing trace with hash -2098592588, now seen corresponding path program 1 times [2018-11-18 12:28:50,418 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:28:50,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:28:50,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:28:50,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:28:50,448 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:28:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:28:50,773 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 12:28:50,774 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:28:50,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 12:28:50,775 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:28:50,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 12:28:50,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 12:28:50,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:28:50,787 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 10 states. [2018-11-18 12:28:51,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:28:51,094 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-11-18 12:28:51,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 12:28:51,095 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2018-11-18 12:28:51,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:28:51,100 INFO L225 Difference]: With dead ends: 27 [2018-11-18 12:28:51,100 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:28:51,102 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2018-11-18 12:28:51,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:28:51,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:28:51,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:28:51,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:28:51,118 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-11-18 12:28:51,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:28:51,118 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:28:51,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 12:28:51,119 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:28:51,119 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:28:51,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:28:51,324 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:28:51,324 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2018-11-18 12:28:51,324 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:28:51,324 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:28:51,324 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse1 (+ |~#global~0.offset| 4)) (.cse2 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse0 (select |#memory_$Pointer$.base| |~#global~0.base|))) (and (= |~#b~0.base| (select .cse0 .cse1)) (= |~#b~0.offset| (select .cse2 .cse1)) (not (= |~#a~0.base| |~#b~0.base|)) (= |~#a~0.offset| (select .cse2 |~#global~0.offset|)) (= |~#a~0.base| (select .cse0 |~#global~0.offset|)))) [2018-11-18 12:28:51,324 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:28:51,324 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:28:51,325 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 19 33) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select |#memory_$Pointer$.base| |~#global~0.base|)) (.cse1 (+ |~#global~0.offset| 4))) (or (not (= (select .cse0 .cse1) |~#b~0.offset|)) (= |~#a~0.base| |~#b~0.base|) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| (select .cse2 |~#global~0.offset|))) (= |#memory_int| |old(#memory_int)|) (not (= (select .cse2 .cse1) |~#b~0.base|)))) [2018-11-18 12:28:51,325 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 19 33) no Hoare annotation was computed. [2018-11-18 12:28:51,325 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2018-11-18 12:28:51,325 INFO L421 ceAbstractionStarter]: At program point L26(lines 20 33) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select |#memory_$Pointer$.base| |~#global~0.base|)) (.cse1 (+ |~#global~0.offset| 4))) (or (not (= (select .cse0 .cse1) |~#b~0.offset|)) (= |~#a~0.base| |~#b~0.base|) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| (select .cse2 |~#global~0.offset|))) (not (= (select .cse2 .cse1) |~#b~0.base|)))) [2018-11-18 12:28:51,325 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 27) no Hoare annotation was computed. [2018-11-18 12:28:51,325 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 19 33) no Hoare annotation was computed. [2018-11-18 12:28:51,325 INFO L421 ceAbstractionStarter]: At program point L23(line 23) the Hoare annotation is: (let ((.cse3 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse5 (select |#memory_$Pointer$.base| |~#global~0.base|)) (.cse4 (+ |~#global~0.offset| 4))) (or (let ((.cse0 (select |#memory_$Pointer$.offset| main_~pd~0.base)) (.cse1 (select |#memory_$Pointer$.base| main_~pd~0.base)) (.cse2 (+ main_~pd~0.offset 4))) (and (= |~#a~0.offset| (select .cse0 main_~pd~0.offset)) (= |~#a~0.base| (select .cse1 main_~pd~0.offset)) (= |#memory_int| |old(#memory_int)|) (= |~#b~0.offset| (select .cse0 .cse2)) (= |~#b~0.base| (select .cse1 .cse2)))) (not (= (select .cse3 .cse4) |~#b~0.offset|)) (= |~#a~0.base| |~#b~0.base|) (not (= (select .cse3 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| (select .cse5 |~#global~0.offset|))) (not (= (select .cse5 .cse4) |~#b~0.base|)))) [2018-11-18 12:28:51,325 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-18 12:28:51,326 INFO L421 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select |#memory_$Pointer$.base| |~#global~0.base|)) (.cse1 (+ |~#global~0.offset| 4))) (or (not (= (select .cse0 .cse1) |~#b~0.offset|)) (= |~#a~0.base| |~#b~0.base|) (and (= |assign2_#t~mem1.base| (select (select |#memory_$Pointer$.base| |assign2_#in~pa.base|) |assign2_#in~pa.offset|)) (= |assign2_#t~mem2.offset| (select (select |#memory_$Pointer$.offset| |assign2_#in~pb.base|) |assign2_#in~pb.offset|)) (= |#memory_int| |old(#memory_int)|) (= |assign2_#t~mem2.base| (select (select |#memory_$Pointer$.base| |assign2_#in~pb.base|) |assign2_#in~pb.offset|)) (= |assign2_#t~mem1.offset| (select (select |#memory_$Pointer$.offset| |assign2_#in~pa.base|) |assign2_#in~pa.offset|))) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| (select .cse2 |~#global~0.offset|))) (not (= (select .cse2 .cse1) |~#b~0.base|)))) [2018-11-18 12:28:51,326 INFO L425 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-11-18 12:28:51,326 INFO L425 ceAbstractionStarter]: For program point assign2FINAL(lines 14 17) no Hoare annotation was computed. [2018-11-18 12:28:51,326 INFO L421 ceAbstractionStarter]: At program point assign2ENTRY(lines 14 17) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select |#memory_$Pointer$.base| |~#global~0.base|)) (.cse1 (+ |~#global~0.offset| 4))) (or (not (= (select .cse0 .cse1) |~#b~0.offset|)) (= |~#a~0.base| |~#b~0.base|) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| (select .cse2 |~#global~0.offset|))) (= |#memory_int| |old(#memory_int)|) (not (= (select .cse2 .cse1) |~#b~0.base|)))) [2018-11-18 12:28:51,326 INFO L425 ceAbstractionStarter]: For program point assign2EXIT(lines 14 17) no Hoare annotation was computed. [2018-11-18 12:28:51,326 INFO L425 ceAbstractionStarter]: For program point assignEXIT(lines 9 12) no Hoare annotation was computed. [2018-11-18 12:28:51,326 INFO L421 ceAbstractionStarter]: At program point assignENTRY(lines 9 12) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select |#memory_$Pointer$.base| |~#global~0.base|)) (.cse1 (+ |~#global~0.offset| 4))) (or (not (= (select .cse0 .cse1) |~#b~0.offset|)) (= |~#a~0.base| |~#b~0.base|) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| (select .cse2 |~#global~0.offset|))) (= |#memory_int| |old(#memory_int)|) (not (= (select .cse2 .cse1) |~#b~0.base|)))) [2018-11-18 12:28:51,326 INFO L425 ceAbstractionStarter]: For program point assignFINAL(lines 9 12) no Hoare annotation was computed. [2018-11-18 12:28:51,332 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-11-18 12:28:51,333 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-11-18 12:28:51,333 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-18 12:28:51,333 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-18 12:28:51,335 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-18 12:28:51,335 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-18 12:28:51,335 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-18 12:28:51,335 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-18 12:28:51,337 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-11-18 12:28:51,337 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-11-18 12:28:51,337 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-18 12:28:51,337 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-18 12:28:51,338 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-18 12:28:51,338 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-18 12:28:51,338 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-18 12:28:51,338 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-18 12:28:51,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:28:51 BoogieIcfgContainer [2018-11-18 12:28:51,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:28:51,340 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:28:51,340 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:28:51,340 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:28:51,340 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:28:50" (3/4) ... [2018-11-18 12:28:51,343 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:28:51,347 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:28:51,347 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:28:51,347 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure assign2 [2018-11-18 12:28:51,347 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure assign [2018-11-18 12:28:51,350 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-11-18 12:28:51,350 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 12:28:51,350 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 12:28:51,351 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:28:51,379 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_697976d0-a5f4-4ebd-a53a-fd455b1ca074/bin-2019/utaipan/witness.graphml [2018-11-18 12:28:51,379 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:28:51,380 INFO L168 Benchmark]: Toolchain (without parser) took 1421.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 958.5 MB in the beginning and 980.9 MB in the end (delta: -22.4 MB). Peak memory consumption was 139.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:28:51,381 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:28:51,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.10 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:28:51,381 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.65 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:28:51,382 INFO L168 Benchmark]: Boogie Preprocessor took 16.36 ms. Allocated memory is still 1.0 GB. Free memory is still 945.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:28:51,382 INFO L168 Benchmark]: RCFGBuilder took 204.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -197.4 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:28:51,382 INFO L168 Benchmark]: TraceAbstraction took 994.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.2 MB in the end (delta: 158.2 MB). Peak memory consumption was 158.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:28:51,382 INFO L168 Benchmark]: Witness Printer took 39.30 ms. Allocated memory is still 1.2 GB. Free memory was 984.2 MB in the beginning and 980.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:28:51,384 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 150.10 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 947.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.65 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.36 ms. Allocated memory is still 1.0 GB. Free memory is still 945.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 204.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -197.4 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 994.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.2 MB in the end (delta: 158.2 MB). Peak memory consumption was 158.2 MB. Max. memory is 11.5 GB. * Witness Printer took 39.30 ms. Allocated memory is still 1.2 GB. Free memory was 984.2 MB in the beginning and 980.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 31]: 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 - InvariantResult [Line: 20]: Loop Invariant [2018-11-18 12:28:51,389 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-11-18 12:28:51,389 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-11-18 12:28:51,389 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-18 12:28:51,390 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-18 12:28:51,390 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-18 12:28:51,390 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-18 12:28:51,390 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-18 12:28:51,390 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-18 12:28:51,391 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-11-18 12:28:51,391 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-11-18 12:28:51,391 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-18 12:28:51,392 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-18 12:28:51,392 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-18 12:28:51,392 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-18 12:28:51,392 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-18 12:28:51,392 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((!(#memory_$Pointer$[global][global + 4] == b) || a == b) || !(#memory_$Pointer$[global][global] == a)) || !(a == #memory_$Pointer$[global][global])) || !(#memory_$Pointer$[global][global + 4] == b) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 15 SDslu, 41 SDs, 0 SdLazy, 70 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 358 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 183 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 7888 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...