./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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5cda2ea3-0d6a-46b9-ad96-19f2f85b0845/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5cda2ea3-0d6a-46b9-ad96-19f2f85b0845/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5cda2ea3-0d6a-46b9-ad96-19f2f85b0845/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5cda2ea3-0d6a-46b9-ad96-19f2f85b0845/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_5cda2ea3-0d6a-46b9-ad96-19f2f85b0845/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5cda2ea3-0d6a-46b9-ad96-19f2f85b0845/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 0.1.23-1dbac8b [2018-11-10 13:32:53,294 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:32:53,295 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:32:53,302 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:32:53,302 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:32:53,302 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:32:53,303 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:32:53,304 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:32:53,305 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:32:53,306 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:32:53,306 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:32:53,306 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:32:53,307 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:32:53,308 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:32:53,308 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:32:53,309 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:32:53,309 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:32:53,311 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:32:53,312 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:32:53,313 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:32:53,314 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:32:53,315 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:32:53,316 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:32:53,316 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:32:53,316 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:32:53,317 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:32:53,317 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:32:53,318 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:32:53,318 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:32:53,319 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:32:53,319 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:32:53,320 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:32:53,320 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:32:53,320 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:32:53,321 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:32:53,321 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:32:53,321 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5cda2ea3-0d6a-46b9-ad96-19f2f85b0845/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 13:32:53,331 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:32:53,331 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:32:53,331 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:32:53,332 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:32:53,332 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:32:53,332 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:32:53,332 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 13:32:53,332 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:32:53,332 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 13:32:53,332 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 13:32:53,332 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:32:53,333 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:32:53,333 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:32:53,333 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:32:53,333 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:32:53,333 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:32:53,334 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:32:53,334 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:32:53,334 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:32:53,334 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:32:53,334 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:32:53,334 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:32:53,334 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:32:53,335 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:32:53,335 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:32:53,335 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:32:53,335 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:32:53,335 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:32:53,335 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:32:53,335 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:32:53,335 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 13:32:53,335 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:32:53,335 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:32:53,335 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 13:32:53,336 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_5cda2ea3-0d6a-46b9-ad96-19f2f85b0845/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 [2018-11-10 13:32:53,356 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:32:53,364 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:32:53,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:32:53,367 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:32:53,367 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:32:53,367 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5cda2ea3-0d6a-46b9-ad96-19f2f85b0845/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/test30_true-unreach-call_true-termination.c [2018-11-10 13:32:53,402 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5cda2ea3-0d6a-46b9-ad96-19f2f85b0845/bin-2019/utaipan/data/b48a572a0/cbd2e0be26824cf9af18aeb3ecf425a9/FLAG9a9289599 [2018-11-10 13:32:53,793 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:32:53,794 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5cda2ea3-0d6a-46b9-ad96-19f2f85b0845/sv-benchmarks/c/ldv-regression/test30_true-unreach-call_true-termination.c [2018-11-10 13:32:53,797 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5cda2ea3-0d6a-46b9-ad96-19f2f85b0845/bin-2019/utaipan/data/b48a572a0/cbd2e0be26824cf9af18aeb3ecf425a9/FLAG9a9289599 [2018-11-10 13:32:53,807 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5cda2ea3-0d6a-46b9-ad96-19f2f85b0845/bin-2019/utaipan/data/b48a572a0/cbd2e0be26824cf9af18aeb3ecf425a9 [2018-11-10 13:32:53,809 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:32:53,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:32:53,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:32:53,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:32:53,812 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:32:53,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:32:53" (1/1) ... [2018-11-10 13:32:53,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@769b41f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:53, skipping insertion in model container [2018-11-10 13:32:53,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:32:53" (1/1) ... [2018-11-10 13:32:53,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:32:53,832 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:32:53,925 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:32:53,933 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:32:53,942 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:32:53,952 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:32:53,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:53 WrapperNode [2018-11-10 13:32:53,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:32:53,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:32:53,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:32:53,953 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:32:53,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:53" (1/1) ... [2018-11-10 13:32:53,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:53" (1/1) ... [2018-11-10 13:32:53,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:32:53,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:32:53,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:32:53,979 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:32:53,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:53" (1/1) ... [2018-11-10 13:32:53,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:53" (1/1) ... [2018-11-10 13:32:53,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:53" (1/1) ... [2018-11-10 13:32:53,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:53" (1/1) ... [2018-11-10 13:32:53,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:53" (1/1) ... [2018-11-10 13:32:53,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:53" (1/1) ... [2018-11-10 13:32:53,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:53" (1/1) ... [2018-11-10 13:32:53,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:32:53,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:32:53,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:32:53,997 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:32:53,998 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5cda2ea3-0d6a-46b9-ad96-19f2f85b0845/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:32:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:32:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:32:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:32:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:32:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:32:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:32:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure assign2 [2018-11-10 13:32:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure assign2 [2018-11-10 13:32:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2018-11-10 13:32:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2018-11-10 13:32:54,288 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:32:54,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:32:54 BoogieIcfgContainer [2018-11-10 13:32:54,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:32:54,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:32:54,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:32:54,291 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:32:54,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:32:53" (1/3) ... [2018-11-10 13:32:54,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c8526d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:32:54, skipping insertion in model container [2018-11-10 13:32:54,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:32:53" (2/3) ... [2018-11-10 13:32:54,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38c8526d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:32:54, skipping insertion in model container [2018-11-10 13:32:54,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:32:54" (3/3) ... [2018-11-10 13:32:54,294 INFO L112 eAbstractionObserver]: Analyzing ICFG test30_true-unreach-call_true-termination.c [2018-11-10 13:32:54,302 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:32:54,309 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:32:54,323 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:32:54,350 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:32:54,350 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:32:54,350 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:32:54,350 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:32:54,350 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:32:54,350 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:32:54,350 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:32:54,350 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:32:54,364 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-10 13:32:54,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 13:32:54,369 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:32:54,370 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:32:54,372 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:32:54,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:32:54,377 INFO L82 PathProgramCache]: Analyzing trace with hash -2098592588, now seen corresponding path program 1 times [2018-11-10 13:32:54,379 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:32:54,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:32:54,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:32:54,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:32:54,421 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:32:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:32:54,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:32:54,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:32:54,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-10 13:32:54,817 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:32:54,820 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 13:32:54,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 13:32:54,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-10 13:32:54,829 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 10 states. [2018-11-10 13:32:55,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:32:55,297 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-11-10 13:32:55,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-10 13:32:55,298 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2018-11-10 13:32:55,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:32:55,304 INFO L225 Difference]: With dead ends: 27 [2018-11-10 13:32:55,304 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 13:32:55,307 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2018-11-10 13:32:55,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 13:32:55,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 13:32:55,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 13:32:55,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 13:32:55,325 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-11-10 13:32:55,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:32:55,325 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:32:55,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 13:32:55,325 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 13:32:55,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 13:32:55,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 13:32:55,594 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:32:55,595 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2018-11-10 13:32:55,595 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:32:55,595 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:32:55,595 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse3 (select |#memory_$Pointer$.base| |~#global~0.base|))) (let ((.cse1 (select .cse3 4)) (.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select .cse3 |~#global~0.offset|))) (and (= |~#global~0.offset| 0) (<= 0 |~#b~0.offset|) (= (select .cse0 (+ |~#global~0.offset| 4)) 0) (= |~#b~0.base| .cse1) (not (= .cse2 .cse1)) (= |~#a~0.offset| (select .cse0 |~#global~0.offset|)) (= |~#a~0.base| .cse2) (<= |~#b~0.offset| 0)))) [2018-11-10 13:32:55,595 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:32:55,595 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:32:55,596 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 19 33) the Hoare annotation is: (let ((.cse3 (select |#memory_$Pointer$.base| |~#global~0.base|))) (let ((.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select .cse3 4)) (.cse1 (select .cse3 |~#global~0.offset|))) (or (< 0 |~#b~0.offset|) (= |#memory_int| |old(#memory_int)|) (not (= 0 |~#global~0.offset|)) (< |~#b~0.offset| 0) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| .cse1)) (not (= (select .cse0 (+ |~#global~0.offset| 4)) 0)) (not (= .cse2 |~#b~0.base|)) (= .cse2 .cse1)))) [2018-11-10 13:32:55,596 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 19 33) no Hoare annotation was computed. [2018-11-10 13:32:55,596 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2018-11-10 13:32:55,596 INFO L421 ceAbstractionStarter]: At program point L26(lines 20 33) the Hoare annotation is: (let ((.cse3 (select |#memory_$Pointer$.base| |~#global~0.base|))) (let ((.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select .cse3 4)) (.cse1 (select .cse3 |~#global~0.offset|))) (or (< 0 |~#b~0.offset|) (not (= 0 |~#global~0.offset|)) (< |~#b~0.offset| 0) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| .cse1)) (not (= (select .cse0 (+ |~#global~0.offset| 4)) 0)) (not (= .cse2 |~#b~0.base|)) (= .cse2 .cse1)))) [2018-11-10 13:32:55,597 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 27) no Hoare annotation was computed. [2018-11-10 13:32:55,597 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 19 33) no Hoare annotation was computed. [2018-11-10 13:32:55,598 INFO L421 ceAbstractionStarter]: At program point L23(line 23) the Hoare annotation is: (let ((.cse5 (select |#memory_$Pointer$.base| |~#global~0.base|))) (let ((.cse2 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse4 (select .cse5 4)) (.cse3 (select .cse5 |~#global~0.offset|))) (or (< 0 |~#b~0.offset|) (let ((.cse0 (select |#memory_$Pointer$.offset| main_~pd~0.base)) (.cse1 (select |#memory_$Pointer$.base| main_~pd~0.base))) (and (= |~#a~0.offset| (select .cse0 main_~pd~0.offset)) (= (select .cse0 4) 0) (= |~#b~0.base| (select .cse1 4)) (= |~#a~0.base| (select .cse1 main_~pd~0.offset)) (= |#memory_int| |old(#memory_int)|) (= main_~pd~0.offset 0))) (not (= 0 |~#global~0.offset|)) (< |~#b~0.offset| 0) (not (= (select .cse2 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| .cse3)) (not (= (select .cse2 (+ |~#global~0.offset| 4)) 0)) (not (= .cse4 |~#b~0.base|)) (= .cse4 .cse3)))) [2018-11-10 13:32:55,598 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-10 13:32:55,598 INFO L421 ceAbstractionStarter]: At program point L16(line 16) the Hoare annotation is: (let ((.cse3 (select |#memory_$Pointer$.base| |~#global~0.base|))) (let ((.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select .cse3 4)) (.cse1 (select .cse3 |~#global~0.offset|))) (or (< 0 |~#b~0.offset|) (and (or (<= |assign2_#in~pb.offset| 3) (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|) 4)) (= (select (select |#memory_$Pointer$.base| |assign2_#in~pb.base|) 4) |assign2_#t~mem2.base|) (= |assign2_#t~mem1.offset| (select (select |#memory_$Pointer$.offset| |assign2_#in~pa.base|) |assign2_#in~pa.offset|))) (<= 5 |assign2_#in~pb.offset|)) (= |#memory_int| |old(#memory_int)|)) (not (= 0 |~#global~0.offset|)) (< |~#b~0.offset| 0) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| .cse1)) (not (= (select .cse0 (+ |~#global~0.offset| 4)) 0)) (not (= .cse2 |~#b~0.base|)) (= .cse2 .cse1)))) [2018-11-10 13:32:55,598 INFO L425 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-11-10 13:32:55,598 INFO L425 ceAbstractionStarter]: For program point assign2FINAL(lines 14 17) no Hoare annotation was computed. [2018-11-10 13:32:55,599 INFO L421 ceAbstractionStarter]: At program point assign2ENTRY(lines 14 17) the Hoare annotation is: (let ((.cse3 (select |#memory_$Pointer$.base| |~#global~0.base|))) (let ((.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select .cse3 4)) (.cse1 (select .cse3 |~#global~0.offset|))) (or (< 0 |~#b~0.offset|) (= |#memory_int| |old(#memory_int)|) (not (= 0 |~#global~0.offset|)) (< |~#b~0.offset| 0) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| .cse1)) (not (= (select .cse0 (+ |~#global~0.offset| 4)) 0)) (not (= .cse2 |~#b~0.base|)) (= .cse2 .cse1)))) [2018-11-10 13:32:55,599 INFO L425 ceAbstractionStarter]: For program point assign2EXIT(lines 14 17) no Hoare annotation was computed. [2018-11-10 13:32:55,599 INFO L425 ceAbstractionStarter]: For program point assignEXIT(lines 9 12) no Hoare annotation was computed. [2018-11-10 13:32:55,599 INFO L421 ceAbstractionStarter]: At program point assignENTRY(lines 9 12) the Hoare annotation is: (let ((.cse3 (select |#memory_$Pointer$.base| |~#global~0.base|))) (let ((.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select .cse3 4)) (.cse1 (select .cse3 |~#global~0.offset|))) (or (< 0 |~#b~0.offset|) (= |#memory_int| |old(#memory_int)|) (not (= 0 |~#global~0.offset|)) (< |~#b~0.offset| 0) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| .cse1)) (not (= (select .cse0 (+ |~#global~0.offset| 4)) 0)) (not (= .cse2 |~#b~0.base|)) (= .cse2 .cse1)))) [2018-11-10 13:32:55,599 INFO L425 ceAbstractionStarter]: For program point assignFINAL(lines 9 12) no Hoare annotation was computed. [2018-11-10 13:32:55,606 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-11-10 13:32:55,607 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-10 13:32:55,607 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-11-10 13:32:55,608 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-10 13:32:55,608 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-10 13:32:55,608 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-10 13:32:55,610 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,610 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,611 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,611 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,611 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,611 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,613 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-11-10 13:32:55,614 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-10 13:32:55,614 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-11-10 13:32:55,614 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-10 13:32:55,615 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-10 13:32:55,615 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-10 13:32:55,615 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,616 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,616 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,616 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,616 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,617 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:32:55 BoogieIcfgContainer [2018-11-10 13:32:55,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:32:55,619 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:32:55,619 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:32:55,619 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:32:55,620 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:32:54" (3/4) ... [2018-11-10 13:32:55,623 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 13:32:55,629 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 13:32:55,629 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 13:32:55,630 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure assign2 [2018-11-10 13:32:55,630 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure assign [2018-11-10 13:32:55,634 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2018-11-10 13:32:55,634 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-10 13:32:55,634 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-10 13:32:55,635 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 13:32:55,667 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5cda2ea3-0d6a-46b9-ad96-19f2f85b0845/bin-2019/utaipan/witness.graphml [2018-11-10 13:32:55,667 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:32:55,668 INFO L168 Benchmark]: Toolchain (without parser) took 1858.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 959.3 MB in the beginning and 900.0 MB in the end (delta: 59.3 MB). Peak memory consumption was 201.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:32:55,669 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:32:55,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.85 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:32:55,669 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.53 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:32:55,669 INFO L168 Benchmark]: Boogie Preprocessor took 17.43 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:32:55,670 INFO L168 Benchmark]: RCFGBuilder took 291.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -172.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-11-10 13:32:55,670 INFO L168 Benchmark]: TraceAbstraction took 1329.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 903.4 MB in the end (delta: 214.7 MB). Peak memory consumption was 214.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:32:55,670 INFO L168 Benchmark]: Witness Printer took 48.49 ms. Allocated memory is still 1.2 GB. Free memory was 903.4 MB in the beginning and 900.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:32:55,672 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 142.85 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.53 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.43 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 291.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -172.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1329.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 903.4 MB in the end (delta: 214.7 MB). Peak memory consumption was 214.7 MB. Max. memory is 11.5 GB. * Witness Printer took 48.49 ms. Allocated memory is still 1.2 GB. Free memory was 903.4 MB in the beginning and 900.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$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_$Pointer$.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_$Pointer$.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_$Pointer$.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_$Pointer$.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_$Pointer$.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_$Pointer$.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_$Pointer$ - 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 [2018-11-10 13:32:55,677 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-11-10 13:32:55,681 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-10 13:32:55,682 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-11-10 13:32:55,682 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-10 13:32:55,682 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-10 13:32:55,682 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-10 13:32:55,683 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,683 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,683 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,683 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,684 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,684 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,684 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-11-10 13:32:55,685 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-10 13:32:55,685 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-11-10 13:32:55,685 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-10 13:32:55,685 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-10 13:32:55,685 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-11-10 13:32:55,686 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,686 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,686 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,686 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,687 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-11-10 13:32:55,687 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: ((((((0 < b || !(0 == global)) || b < 0) || !(#memory_$Pointer$[global][global] == a)) || !(a == #memory_$Pointer$[global][global])) || !(#memory_$Pointer$[global][global + 4] == 0)) || !(#memory_$Pointer$[global][4] == b)) || #memory_$Pointer$[global][4] == #memory_$Pointer$[global][global] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 15 SDslu, 46 SDs, 0 SdLazy, 79 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, 26 ImplicationChecksByTransitivity, 0.5s 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, 488 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 258 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 9435 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...