./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock_true-unreach-call.i --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_96fa8143-22f8-4edd-9b42-2ea4b9217c81/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_96fa8143-22f8-4edd-9b42-2ea4b9217c81/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_96fa8143-22f8-4edd-9b42-2ea4b9217c81/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_96fa8143-22f8-4edd-9b42-2ea4b9217c81/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_96fa8143-22f8-4edd-9b42-2ea4b9217c81/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_96fa8143-22f8-4edd-9b42-2ea4b9217c81/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 1d08478f13fb71f111fd419179c47ab65881301c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 22:12:31,314 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 22:12:31,315 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 22:12:31,323 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 22:12:31,324 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 22:12:31,324 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 22:12:31,325 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 22:12:31,326 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 22:12:31,327 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 22:12:31,328 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 22:12:31,329 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 22:12:31,329 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 22:12:31,329 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 22:12:31,330 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 22:12:31,330 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 22:12:31,331 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 22:12:31,331 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 22:12:31,332 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 22:12:31,333 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 22:12:31,334 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 22:12:31,335 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 22:12:31,335 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 22:12:31,337 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 22:12:31,337 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 22:12:31,337 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 22:12:31,338 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 22:12:31,338 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 22:12:31,339 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 22:12:31,339 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 22:12:31,340 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 22:12:31,340 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 22:12:31,341 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 22:12:31,341 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 22:12:31,341 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 22:12:31,342 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 22:12:31,342 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 22:12:31,342 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_96fa8143-22f8-4edd-9b42-2ea4b9217c81/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 22:12:31,352 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 22:12:31,352 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 22:12:31,353 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 22:12:31,353 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 22:12:31,353 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 22:12:31,353 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 22:12:31,353 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 22:12:31,354 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 22:12:31,354 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 22:12:31,354 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 22:12:31,354 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 22:12:31,354 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 22:12:31,354 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 22:12:31,355 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 22:12:31,355 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 22:12:31,355 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 22:12:31,355 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 22:12:31,356 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 22:12:31,356 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 22:12:31,356 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 22:12:31,356 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 22:12:31,356 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 22:12:31,356 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 22:12:31,356 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 22:12:31,357 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 22:12:31,357 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 22:12:31,357 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 22:12:31,357 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 22:12:31,357 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 22:12:31,357 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 22:12:31,358 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 22:12:31,358 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 22:12:31,358 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 22:12:31,358 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 22:12:31,358 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 22:12:31,358 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 22:12:31,358 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_96fa8143-22f8-4edd-9b42-2ea4b9217c81/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 -> 1d08478f13fb71f111fd419179c47ab65881301c [2018-12-08 22:12:31,381 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 22:12:31,390 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 22:12:31,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 22:12:31,394 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 22:12:31,394 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 22:12:31,394 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_96fa8143-22f8-4edd-9b42-2ea4b9217c81/bin-2019/utaipan/../../sv-benchmarks/c/pthread-atomic/read_write_lock_true-unreach-call.i [2018-12-08 22:12:31,439 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_96fa8143-22f8-4edd-9b42-2ea4b9217c81/bin-2019/utaipan/data/e40cc1ba5/9aaf3b38b14a4ca4a948015958a185aa/FLAG4a9581673 [2018-12-08 22:12:31,755 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 22:12:31,756 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_96fa8143-22f8-4edd-9b42-2ea4b9217c81/sv-benchmarks/c/pthread-atomic/read_write_lock_true-unreach-call.i [2018-12-08 22:12:31,764 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_96fa8143-22f8-4edd-9b42-2ea4b9217c81/bin-2019/utaipan/data/e40cc1ba5/9aaf3b38b14a4ca4a948015958a185aa/FLAG4a9581673 [2018-12-08 22:12:31,772 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_96fa8143-22f8-4edd-9b42-2ea4b9217c81/bin-2019/utaipan/data/e40cc1ba5/9aaf3b38b14a4ca4a948015958a185aa [2018-12-08 22:12:31,774 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 22:12:31,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 22:12:31,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 22:12:31,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 22:12:31,778 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 22:12:31,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:12:31" (1/1) ... [2018-12-08 22:12:31,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e809d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:31, skipping insertion in model container [2018-12-08 22:12:31,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 10:12:31" (1/1) ... [2018-12-08 22:12:31,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 22:12:31,804 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 22:12:31,964 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 22:12:31,971 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 22:12:32,031 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 22:12:32,057 INFO L195 MainTranslator]: Completed translation [2018-12-08 22:12:32,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:32 WrapperNode [2018-12-08 22:12:32,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 22:12:32,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 22:12:32,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 22:12:32,059 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 22:12:32,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:32" (1/1) ... [2018-12-08 22:12:32,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:32" (1/1) ... [2018-12-08 22:12:32,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 22:12:32,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 22:12:32,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 22:12:32,084 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 22:12:32,089 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:32" (1/1) ... [2018-12-08 22:12:32,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:32" (1/1) ... [2018-12-08 22:12:32,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:32" (1/1) ... [2018-12-08 22:12:32,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:32" (1/1) ... [2018-12-08 22:12:32,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:32" (1/1) ... [2018-12-08 22:12:32,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:32" (1/1) ... [2018-12-08 22:12:32,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:32" (1/1) ... [2018-12-08 22:12:32,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 22:12:32,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 22:12:32,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 22:12:32,096 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 22:12:32,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_96fa8143-22f8-4edd-9b42-2ea4b9217c81/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 [2018-12-08 22:12:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 22:12:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 22:12:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 22:12:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2018-12-08 22:12:32,127 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2018-12-08 22:12:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 22:12:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 22:12:32,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 22:12:32,127 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2018-12-08 22:12:32,127 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2018-12-08 22:12:32,128 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-08 22:12:32,198 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_read_lock_returnLabel [2018-12-08 22:12:32,199 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_read_lock_returnLabel [2018-12-08 22:12:32,277 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_write_lock_returnLabel [2018-12-08 22:12:32,282 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 22:12:32,282 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-08 22:12:32,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:12:32 BoogieIcfgContainer [2018-12-08 22:12:32,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 22:12:32,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 22:12:32,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 22:12:32,285 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 22:12:32,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 10:12:31" (1/3) ... [2018-12-08 22:12:32,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fef39a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 10:12:32, skipping insertion in model container [2018-12-08 22:12:32,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 10:12:32" (2/3) ... [2018-12-08 22:12:32,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fef39a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 10:12:32, skipping insertion in model container [2018-12-08 22:12:32,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:12:32" (3/3) ... [2018-12-08 22:12:32,287 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock_true-unreach-call.i [2018-12-08 22:12:32,306 WARN L317 ript$VariableManager]: TermVariabe |Thread2_reader_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,307 WARN L317 ript$VariableManager]: TermVariabe |Thread2_reader_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,307 WARN L317 ript$VariableManager]: TermVariabe Thread2_reader_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,307 WARN L317 ript$VariableManager]: TermVariabe Thread2_reader_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,307 WARN L317 ript$VariableManager]: TermVariabe Thread2_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,307 WARN L317 ript$VariableManager]: TermVariabe Thread2_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,307 WARN L317 ript$VariableManager]: TermVariabe Thread2_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,307 WARN L317 ript$VariableManager]: TermVariabe |Thread2_reader_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,308 WARN L317 ript$VariableManager]: TermVariabe |Thread2_reader_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,308 WARN L317 ript$VariableManager]: TermVariabe |Thread0_reader_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,308 WARN L317 ript$VariableManager]: TermVariabe |Thread0_reader_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,308 WARN L317 ript$VariableManager]: TermVariabe Thread0_reader_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,308 WARN L317 ript$VariableManager]: TermVariabe Thread0_reader_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,308 WARN L317 ript$VariableManager]: TermVariabe Thread0_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,308 WARN L317 ript$VariableManager]: TermVariabe Thread0_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,308 WARN L317 ript$VariableManager]: TermVariabe Thread0_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,309 WARN L317 ript$VariableManager]: TermVariabe |Thread0_reader_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,309 WARN L317 ript$VariableManager]: TermVariabe |Thread0_reader_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,309 WARN L317 ript$VariableManager]: TermVariabe |Thread1_writer_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,309 WARN L317 ript$VariableManager]: TermVariabe |Thread1_writer_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,309 WARN L317 ript$VariableManager]: TermVariabe Thread1_writer_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,309 WARN L317 ript$VariableManager]: TermVariabe Thread1_writer_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,309 WARN L317 ript$VariableManager]: TermVariabe |Thread1_writer_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,309 WARN L317 ript$VariableManager]: TermVariabe |Thread1_writer_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,310 WARN L317 ript$VariableManager]: TermVariabe |Thread3_writer_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,310 WARN L317 ript$VariableManager]: TermVariabe |Thread3_writer_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,310 WARN L317 ript$VariableManager]: TermVariabe Thread3_writer_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,310 WARN L317 ript$VariableManager]: TermVariabe Thread3_writer_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,310 WARN L317 ript$VariableManager]: TermVariabe |Thread3_writer_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,310 WARN L317 ript$VariableManager]: TermVariabe |Thread3_writer_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 22:12:32,328 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-08 22:12:32,328 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 22:12:32,332 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-08 22:12:32,341 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-08 22:12:32,355 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 22:12:32,356 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 22:12:32,356 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 22:12:32,356 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 22:12:32,356 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 22:12:32,356 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 22:12:32,356 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 22:12:32,356 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 22:12:32,362 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 82places, 91 transitions [2018-12-08 22:12:33,163 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 22596 states. [2018-12-08 22:12:33,164 INFO L276 IsEmpty]: Start isEmpty. Operand 22596 states. [2018-12-08 22:12:33,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 22:12:33,170 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:12:33,171 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:12:33,172 INFO L423 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:12:33,175 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:12:33,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1971274062, now seen corresponding path program 1 times [2018-12-08 22:12:33,177 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:12:33,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:33,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:12:33,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:33,213 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:12:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:12:33,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:12:33,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:12:33,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 22:12:33,297 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:12:33,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 22:12:33,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 22:12:33,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 22:12:33,309 INFO L87 Difference]: Start difference. First operand 22596 states. Second operand 4 states. [2018-12-08 22:12:33,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:12:33,744 INFO L93 Difference]: Finished difference Result 53210 states and 199742 transitions. [2018-12-08 22:12:33,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 22:12:33,745 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-12-08 22:12:33,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:12:33,866 INFO L225 Difference]: With dead ends: 53210 [2018-12-08 22:12:33,866 INFO L226 Difference]: Without dead ends: 38180 [2018-12-08 22:12:33,867 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:12:33,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38180 states. [2018-12-08 22:12:34,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38180 to 20681. [2018-12-08 22:12:34,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20681 states. [2018-12-08 22:12:34,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20681 states to 20681 states and 79025 transitions. [2018-12-08 22:12:34,472 INFO L78 Accepts]: Start accepts. Automaton has 20681 states and 79025 transitions. Word has length 23 [2018-12-08 22:12:34,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:12:34,473 INFO L480 AbstractCegarLoop]: Abstraction has 20681 states and 79025 transitions. [2018-12-08 22:12:34,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 22:12:34,473 INFO L276 IsEmpty]: Start isEmpty. Operand 20681 states and 79025 transitions. [2018-12-08 22:12:34,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 22:12:34,474 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:12:34,475 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:12:34,475 INFO L423 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:12:34,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:12:34,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1843184933, now seen corresponding path program 1 times [2018-12-08 22:12:34,476 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:12:34,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:34,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:12:34,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:34,480 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:12:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:12:34,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:12:34,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:12:34,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 22:12:34,523 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:12:34,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 22:12:34,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 22:12:34,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:12:34,524 INFO L87 Difference]: Start difference. First operand 20681 states and 79025 transitions. Second operand 5 states. [2018-12-08 22:12:34,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:12:34,653 INFO L93 Difference]: Finished difference Result 18941 states and 68442 transitions. [2018-12-08 22:12:34,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 22:12:34,653 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2018-12-08 22:12:34,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:12:34,688 INFO L225 Difference]: With dead ends: 18941 [2018-12-08 22:12:34,688 INFO L226 Difference]: Without dead ends: 18701 [2018-12-08 22:12:34,689 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:12:34,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18701 states. [2018-12-08 22:12:34,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18701 to 18701. [2018-12-08 22:12:34,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18701 states. [2018-12-08 22:12:34,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18701 states to 18701 states and 67574 transitions. [2018-12-08 22:12:34,944 INFO L78 Accepts]: Start accepts. Automaton has 18701 states and 67574 transitions. Word has length 25 [2018-12-08 22:12:34,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:12:34,944 INFO L480 AbstractCegarLoop]: Abstraction has 18701 states and 67574 transitions. [2018-12-08 22:12:34,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 22:12:34,944 INFO L276 IsEmpty]: Start isEmpty. Operand 18701 states and 67574 transitions. [2018-12-08 22:12:34,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 22:12:34,945 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:12:34,945 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:12:34,945 INFO L423 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:12:34,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:12:34,945 INFO L82 PathProgramCache]: Analyzing trace with hash 714069777, now seen corresponding path program 2 times [2018-12-08 22:12:34,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:12:34,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:34,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:12:34,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:34,948 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:12:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:12:34,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:12:34,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:12:34,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 22:12:34,975 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:12:34,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 22:12:34,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 22:12:34,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 22:12:34,976 INFO L87 Difference]: Start difference. First operand 18701 states and 67574 transitions. Second operand 4 states. [2018-12-08 22:12:35,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:12:35,096 INFO L93 Difference]: Finished difference Result 17297 states and 57246 transitions. [2018-12-08 22:12:35,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 22:12:35,097 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-12-08 22:12:35,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:12:35,121 INFO L225 Difference]: With dead ends: 17297 [2018-12-08 22:12:35,121 INFO L226 Difference]: Without dead ends: 16721 [2018-12-08 22:12:35,121 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 [2018-12-08 22:12:35,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16721 states. [2018-12-08 22:12:35,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16721 to 12992. [2018-12-08 22:12:35,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12992 states. [2018-12-08 22:12:35,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12992 states to 12992 states and 43427 transitions. [2018-12-08 22:12:35,295 INFO L78 Accepts]: Start accepts. Automaton has 12992 states and 43427 transitions. Word has length 25 [2018-12-08 22:12:35,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:12:35,295 INFO L480 AbstractCegarLoop]: Abstraction has 12992 states and 43427 transitions. [2018-12-08 22:12:35,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 22:12:35,295 INFO L276 IsEmpty]: Start isEmpty. Operand 12992 states and 43427 transitions. [2018-12-08 22:12:35,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-08 22:12:35,296 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:12:35,296 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:12:35,297 INFO L423 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:12:35,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:12:35,297 INFO L82 PathProgramCache]: Analyzing trace with hash 47924841, now seen corresponding path program 1 times [2018-12-08 22:12:35,297 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:12:35,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:35,299 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 22:12:35,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:35,299 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:12:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:12:35,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:12:35,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:12:35,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 22:12:35,320 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:12:35,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 22:12:35,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 22:12:35,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 22:12:35,321 INFO L87 Difference]: Start difference. First operand 12992 states and 43427 transitions. Second operand 4 states. [2018-12-08 22:12:35,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:12:35,391 INFO L93 Difference]: Finished difference Result 14324 states and 47560 transitions. [2018-12-08 22:12:35,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 22:12:35,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-12-08 22:12:35,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:12:35,403 INFO L225 Difference]: With dead ends: 14324 [2018-12-08 22:12:35,403 INFO L226 Difference]: Without dead ends: 8831 [2018-12-08 22:12:35,403 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:12:35,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8831 states. [2018-12-08 22:12:35,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8831 to 7334. [2018-12-08 22:12:35,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7334 states. [2018-12-08 22:12:35,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7334 states to 7334 states and 23840 transitions. [2018-12-08 22:12:35,498 INFO L78 Accepts]: Start accepts. Automaton has 7334 states and 23840 transitions. Word has length 29 [2018-12-08 22:12:35,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:12:35,499 INFO L480 AbstractCegarLoop]: Abstraction has 7334 states and 23840 transitions. [2018-12-08 22:12:35,499 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 22:12:35,499 INFO L276 IsEmpty]: Start isEmpty. Operand 7334 states and 23840 transitions. [2018-12-08 22:12:35,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-08 22:12:35,502 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:12:35,503 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:12:35,503 INFO L423 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:12:35,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:12:35,503 INFO L82 PathProgramCache]: Analyzing trace with hash 164056283, now seen corresponding path program 1 times [2018-12-08 22:12:35,503 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:12:35,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:35,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:12:35,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:35,505 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:12:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:12:35,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:12:35,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:12:35,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 22:12:35,540 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:12:35,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 22:12:35,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 22:12:35,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:12:35,541 INFO L87 Difference]: Start difference. First operand 7334 states and 23840 transitions. Second operand 5 states. [2018-12-08 22:12:35,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:12:35,580 INFO L93 Difference]: Finished difference Result 8558 states and 27434 transitions. [2018-12-08 22:12:35,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 22:12:35,581 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-12-08 22:12:35,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:12:35,590 INFO L225 Difference]: With dead ends: 8558 [2018-12-08 22:12:35,590 INFO L226 Difference]: Without dead ends: 7379 [2018-12-08 22:12:35,590 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:12:35,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7379 states. [2018-12-08 22:12:35,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7379 to 6803. [2018-12-08 22:12:35,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6803 states. [2018-12-08 22:12:35,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6803 states to 6803 states and 22284 transitions. [2018-12-08 22:12:35,675 INFO L78 Accepts]: Start accepts. Automaton has 6803 states and 22284 transitions. Word has length 37 [2018-12-08 22:12:35,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:12:35,676 INFO L480 AbstractCegarLoop]: Abstraction has 6803 states and 22284 transitions. [2018-12-08 22:12:35,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 22:12:35,676 INFO L276 IsEmpty]: Start isEmpty. Operand 6803 states and 22284 transitions. [2018-12-08 22:12:35,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-12-08 22:12:35,679 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 22:12:35,679 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 22:12:35,679 INFO L423 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 22:12:35,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 22:12:35,679 INFO L82 PathProgramCache]: Analyzing trace with hash -288917643, now seen corresponding path program 2 times [2018-12-08 22:12:35,680 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 22:12:35,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:35,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 22:12:35,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 22:12:35,681 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 22:12:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 22:12:35,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 22:12:35,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 22:12:35,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 22:12:35,718 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 22:12:35,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 22:12:35,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 22:12:35,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:12:35,719 INFO L87 Difference]: Start difference. First operand 6803 states and 22284 transitions. Second operand 5 states. [2018-12-08 22:12:35,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 22:12:35,741 INFO L93 Difference]: Finished difference Result 1907 states and 5204 transitions. [2018-12-08 22:12:35,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 22:12:35,741 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2018-12-08 22:12:35,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 22:12:35,741 INFO L225 Difference]: With dead ends: 1907 [2018-12-08 22:12:35,741 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 22:12:35,742 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-08 22:12:35,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 22:12:35,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 22:12:35,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 22:12:35,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 22:12:35,742 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2018-12-08 22:12:35,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 22:12:35,742 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 22:12:35,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 22:12:35,742 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 22:12:35,743 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 22:12:35,744 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-08 22:12:35,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 10:12:35 BasicIcfg [2018-12-08 22:12:35,745 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 22:12:35,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 22:12:35,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 22:12:35,746 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 22:12:35,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 10:12:32" (3/4) ... [2018-12-08 22:12:35,748 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 22:12:35,753 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2018-12-08 22:12:35,753 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2018-12-08 22:12:35,756 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-12-08 22:12:35,756 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 22:12:35,783 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_96fa8143-22f8-4edd-9b42-2ea4b9217c81/bin-2019/utaipan/witness.graphml [2018-12-08 22:12:35,783 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 22:12:35,783 INFO L168 Benchmark]: Toolchain (without parser) took 4009.09 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 531.6 MB). Free memory was 945.9 MB in the beginning and 753.7 MB in the end (delta: 192.2 MB). Peak memory consumption was 723.8 MB. Max. memory is 11.5 GB. [2018-12-08 22:12:35,784 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-12-08 22:12:35,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -149.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-12-08 22:12:35,785 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 22:12:35,785 INFO L168 Benchmark]: Boogie Preprocessor took 12.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-08 22:12:35,785 INFO L168 Benchmark]: RCFGBuilder took 186.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-12-08 22:12:35,786 INFO L168 Benchmark]: TraceAbstraction took 3462.33 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 417.9 MB). Free memory was 1.1 GB in the beginning and 753.7 MB in the end (delta: 316.2 MB). Peak memory consumption was 734.1 MB. Max. memory is 11.5 GB. [2018-12-08 22:12:35,786 INFO L168 Benchmark]: Witness Printer took 37.51 ms. Allocated memory is still 1.6 GB. Free memory is still 753.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 22:12:35,789 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 282.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -149.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 186.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3462.33 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 417.9 MB). Free memory was 1.1 GB in the beginning and 753.7 MB in the end (delta: 316.2 MB). Peak memory consumption was 734.1 MB. Max. memory is 11.5 GB. * Witness Printer took 37.51 ms. Allocated memory is still 1.6 GB. Free memory is still 753.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 659]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 659]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 659]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 99 locations, 3 error locations. SAFE Result, 3.3s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 786 SDtfs, 748 SDslu, 990 SDs, 0 SdLazy, 167 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22596occurred 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: 1.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 23301 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 176 NumberOfCodeBlocks, 176 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 12148 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...