./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test28_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_14037833-0346-48ef-8a3c-2523a1db3f22/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_14037833-0346-48ef-8a3c-2523a1db3f22/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_14037833-0346-48ef-8a3c-2523a1db3f22/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_14037833-0346-48ef-8a3c-2523a1db3f22/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test28_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_14037833-0346-48ef-8a3c-2523a1db3f22/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_14037833-0346-48ef-8a3c-2523a1db3f22/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 abfa11a491c166b78e1d0644316a3829704ada11 ................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 01:52:58,198 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:52:58,200 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:52:58,209 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:52:58,209 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:52:58,209 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:52:58,210 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:52:58,211 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:52:58,213 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:52:58,213 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:52:58,214 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:52:58,214 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:52:58,215 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:52:58,216 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:52:58,216 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:52:58,217 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:52:58,217 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:52:58,219 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:52:58,220 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:52:58,221 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:52:58,221 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:52:58,222 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:52:58,224 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:52:58,224 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:52:58,224 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:52:58,225 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:52:58,225 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:52:58,226 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:52:58,226 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:52:58,227 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:52:58,227 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:52:58,228 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:52:58,228 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:52:58,228 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:52:58,229 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:52:58,229 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:52:58,229 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_14037833-0346-48ef-8a3c-2523a1db3f22/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 01:52:58,240 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:52:58,240 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:52:58,241 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:52:58,241 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:52:58,241 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 01:52:58,241 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 01:52:58,241 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 01:52:58,242 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 01:52:58,242 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 01:52:58,242 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 01:52:58,242 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 01:52:58,242 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 01:52:58,242 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 01:52:58,243 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:52:58,243 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 01:52:58,243 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 01:52:58,243 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 01:52:58,244 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:52:58,244 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:52:58,244 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:52:58,244 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:52:58,244 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 01:52:58,244 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:52:58,244 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:52:58,245 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:52:58,245 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:52:58,245 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:52:58,245 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:52:58,245 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:52:58,245 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:52:58,246 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:52:58,246 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:52:58,246 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 01:52:58,246 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:52:58,246 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 01:52:58,246 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 01:52:58,246 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_14037833-0346-48ef-8a3c-2523a1db3f22/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 -> abfa11a491c166b78e1d0644316a3829704ada11 [2018-12-09 01:52:58,269 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:52:58,276 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:52:58,278 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:52:58,278 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:52:58,279 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:52:58,279 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_14037833-0346-48ef-8a3c-2523a1db3f22/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/test28_true-unreach-call_true-termination.c [2018-12-09 01:52:58,313 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_14037833-0346-48ef-8a3c-2523a1db3f22/bin-2019/utaipan/data/c26b25605/750d46661c454803ad3f0740f7251d91/FLAGfe75e2468 [2018-12-09 01:52:58,696 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:52:58,696 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_14037833-0346-48ef-8a3c-2523a1db3f22/sv-benchmarks/c/ldv-regression/test28_true-unreach-call_true-termination.c [2018-12-09 01:52:58,699 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_14037833-0346-48ef-8a3c-2523a1db3f22/bin-2019/utaipan/data/c26b25605/750d46661c454803ad3f0740f7251d91/FLAGfe75e2468 [2018-12-09 01:52:58,708 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_14037833-0346-48ef-8a3c-2523a1db3f22/bin-2019/utaipan/data/c26b25605/750d46661c454803ad3f0740f7251d91 [2018-12-09 01:52:58,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:52:58,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:52:58,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:52:58,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:52:58,714 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:52:58,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:52:58" (1/1) ... [2018-12-09 01:52:58,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a8209d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:52:58, skipping insertion in model container [2018-12-09 01:52:58,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:52:58" (1/1) ... [2018-12-09 01:52:58,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:52:58,734 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:52:58,831 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:52:58,837 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:52:58,847 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:52:58,855 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:52:58,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:52:58 WrapperNode [2018-12-09 01:52:58,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:52:58,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:52:58,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:52:58,856 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:52:58,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:52:58" (1/1) ... [2018-12-09 01:52:58,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:52:58" (1/1) ... [2018-12-09 01:52:58,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:52:58,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:52:58,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:52:58,870 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:52:58,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:52:58" (1/1) ... [2018-12-09 01:52:58,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:52:58" (1/1) ... [2018-12-09 01:52:58,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:52:58" (1/1) ... [2018-12-09 01:52:58,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:52:58" (1/1) ... [2018-12-09 01:52:58,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:52:58" (1/1) ... [2018-12-09 01:52:58,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:52:58" (1/1) ... [2018-12-09 01:52:58,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:52:58" (1/1) ... [2018-12-09 01:52:58,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:52:58,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:52:58,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:52:58,882 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:52:58,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:52:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_14037833-0346-48ef-8a3c-2523a1db3f22/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 [2018-12-09 01:52:58,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 01:52:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 01:52:58,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 01:52:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 01:52:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:52:58,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:52:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 01:52:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 01:52:58,944 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 01:52:58,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 01:52:59,044 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:52:59,044 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 01:52:59,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:52:59 BoogieIcfgContainer [2018-12-09 01:52:59,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:52:59,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:52:59,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:52:59,046 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:52:59,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:52:58" (1/3) ... [2018-12-09 01:52:59,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f403db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:52:59, skipping insertion in model container [2018-12-09 01:52:59,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:52:58" (2/3) ... [2018-12-09 01:52:59,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f403db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:52:59, skipping insertion in model container [2018-12-09 01:52:59,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:52:59" (3/3) ... [2018-12-09 01:52:59,048 INFO L112 eAbstractionObserver]: Analyzing ICFG test28_true-unreach-call_true-termination.c [2018-12-09 01:52:59,054 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:52:59,059 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 01:52:59,068 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 01:52:59,084 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:52:59,084 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:52:59,084 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:52:59,084 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:52:59,084 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:52:59,084 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:52:59,085 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:52:59,085 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:52:59,094 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-09 01:52:59,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 01:52:59,097 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:52:59,097 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:52:59,098 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:52:59,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:52:59,101 INFO L82 PathProgramCache]: Analyzing trace with hash 668850033, now seen corresponding path program 1 times [2018-12-09 01:52:59,103 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:52:59,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:52:59,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:52:59,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:52:59,132 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:52:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:52:59,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:52:59,203 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:52:59,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 01:52:59,204 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:52:59,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 01:52:59,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 01:52:59,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 01:52:59,215 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2018-12-09 01:52:59,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:52:59,244 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2018-12-09 01:52:59,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 01:52:59,245 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-12-09 01:52:59,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:52:59,251 INFO L225 Difference]: With dead ends: 34 [2018-12-09 01:52:59,251 INFO L226 Difference]: Without dead ends: 21 [2018-12-09 01:52:59,252 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 01:52:59,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-09 01:52:59,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2018-12-09 01:52:59,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-09 01:52:59,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-12-09 01:52:59,273 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 13 [2018-12-09 01:52:59,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:52:59,273 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-12-09 01:52:59,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 01:52:59,273 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-09 01:52:59,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 01:52:59,273 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:52:59,273 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:52:59,274 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:52:59,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:52:59,274 INFO L82 PathProgramCache]: Analyzing trace with hash 667002991, now seen corresponding path program 1 times [2018-12-09 01:52:59,274 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:52:59,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:52:59,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:52:59,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:52:59,275 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:52:59,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:52:59,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:52:59,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:52:59,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 01:52:59,320 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:52:59,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 01:52:59,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 01:52:59,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-09 01:52:59,322 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 7 states. [2018-12-09 01:52:59,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:52:59,370 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-12-09 01:52:59,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 01:52:59,370 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-12-09 01:52:59,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:52:59,371 INFO L225 Difference]: With dead ends: 23 [2018-12-09 01:52:59,371 INFO L226 Difference]: Without dead ends: 14 [2018-12-09 01:52:59,371 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-12-09 01:52:59,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-12-09 01:52:59,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-12-09 01:52:59,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-09 01:52:59,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2018-12-09 01:52:59,374 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 13 [2018-12-09 01:52:59,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:52:59,374 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2018-12-09 01:52:59,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 01:52:59,374 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2018-12-09 01:52:59,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-09 01:52:59,374 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:52:59,374 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:52:59,374 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:52:59,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:52:59,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1851109901, now seen corresponding path program 1 times [2018-12-09 01:52:59,375 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 01:52:59,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:52:59,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:52:59,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:52:59,376 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 01:52:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:52:59,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:52:59,470 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:52:59,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 01:52:59,471 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 01:52:59,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 01:52:59,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 01:52:59,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-12-09 01:52:59,471 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 8 states. [2018-12-09 01:52:59,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:52:59,513 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2018-12-09 01:52:59,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 01:52:59,513 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2018-12-09 01:52:59,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:52:59,514 INFO L225 Difference]: With dead ends: 14 [2018-12-09 01:52:59,514 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 01:52:59,514 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-12-09 01:52:59,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 01:52:59,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 01:52:59,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 01:52:59,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 01:52:59,515 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-12-09 01:52:59,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:52:59,515 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 01:52:59,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 01:52:59,515 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 01:52:59,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 01:52:59,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 01:52:59,530 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 01:52:59,530 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 01:52:59,530 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 01:52:59,530 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 01:52:59,530 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 01:52:59,531 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 01:52:59,531 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 01:52:59,531 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 28) no Hoare annotation was computed. [2018-12-09 01:52:59,531 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2018-12-09 01:52:59,531 INFO L444 ceAbstractionStarter]: At program point L21(lines 11 28) the Hoare annotation is: false [2018-12-09 01:52:59,531 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2018-12-09 01:52:59,531 INFO L448 ceAbstractionStarter]: For program point L15-2(lines 15 19) no Hoare annotation was computed. [2018-12-09 01:52:59,531 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 28) no Hoare annotation was computed. [2018-12-09 01:52:59,531 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 28) the Hoare annotation is: true [2018-12-09 01:52:59,531 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-12-09 01:52:59,532 INFO L448 ceAbstractionStarter]: For program point L20-2(lines 20 22) no Hoare annotation was computed. [2018-12-09 01:52:59,532 INFO L448 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-12-09 01:52:59,532 INFO L448 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2018-12-09 01:52:59,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:52:59 BoogieIcfgContainer [2018-12-09 01:52:59,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:52:59,536 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:52:59,536 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:52:59,536 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:52:59,536 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:52:59" (3/4) ... [2018-12-09 01:52:59,538 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 01:52:59,542 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 01:52:59,542 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 01:52:59,544 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-12-09 01:52:59,544 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 01:52:59,545 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 01:52:59,545 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 01:52:59,567 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_14037833-0346-48ef-8a3c-2523a1db3f22/bin-2019/utaipan/witness.graphml [2018-12-09 01:52:59,567 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:52:59,568 INFO L168 Benchmark]: Toolchain (without parser) took 857.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 949.7 MB in the beginning and 1.0 GB in the end (delta: -64.0 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. [2018-12-09 01:52:59,569 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:52:59,569 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.65 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:52:59,569 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.32 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:52:59,569 INFO L168 Benchmark]: Boogie Preprocessor took 12.40 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 936.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:52:59,569 INFO L168 Benchmark]: RCFGBuilder took 161.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -159.7 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-09 01:52:59,570 INFO L168 Benchmark]: TraceAbstraction took 490.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 75.3 MB). Peak memory consumption was 75.3 MB. Max. memory is 11.5 GB. [2018-12-09 01:52:59,570 INFO L168 Benchmark]: Witness Printer took 31.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-09 01:52:59,572 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.65 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.32 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.40 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 936.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 161.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -159.7 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 490.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 75.3 MB). Peak memory consumption was 75.3 MB. Max. memory is 11.5 GB. * Witness Printer took 31.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: 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: 11]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 32 SDslu, 71 SDs, 0 SdLazy, 75 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...