./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe029_tso.opt_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_e5c674c9-247a-46fe-8dd3-7127035482e3/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e5c674c9-247a-46fe-8dd3-7127035482e3/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e5c674c9-247a-46fe-8dd3-7127035482e3/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e5c674c9-247a-46fe-8dd3-7127035482e3/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe029_tso.opt_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e5c674c9-247a-46fe-8dd3-7127035482e3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e5c674c9-247a-46fe-8dd3-7127035482e3/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 479d7a523c3017197f67f447a9067f337404603c ................................................................................................................................................................................................................................................................................................................................................................................................................ 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 23:59:24,073 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 23:59:24,074 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 23:59:24,080 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 23:59:24,080 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 23:59:24,081 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 23:59:24,081 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 23:59:24,082 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 23:59:24,083 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 23:59:24,084 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 23:59:24,084 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 23:59:24,085 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 23:59:24,085 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 23:59:24,086 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 23:59:24,086 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 23:59:24,087 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 23:59:24,087 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 23:59:24,088 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 23:59:24,089 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 23:59:24,090 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 23:59:24,090 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 23:59:24,091 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 23:59:24,092 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 23:59:24,093 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 23:59:24,093 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 23:59:24,093 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 23:59:24,094 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 23:59:24,094 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 23:59:24,095 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 23:59:24,095 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 23:59:24,095 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 23:59:24,096 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 23:59:24,096 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 23:59:24,096 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 23:59:24,097 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 23:59:24,097 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 23:59:24,097 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e5c674c9-247a-46fe-8dd3-7127035482e3/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 23:59:24,105 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 23:59:24,105 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 23:59:24,105 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 23:59:24,105 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 23:59:24,106 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 23:59:24,106 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 23:59:24,106 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 23:59:24,106 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 23:59:24,106 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 23:59:24,106 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 23:59:24,106 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 23:59:24,106 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 23:59:24,106 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 23:59:24,107 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 23:59:24,107 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 23:59:24,107 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 23:59:24,107 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 23:59:24,107 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 23:59:24,107 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 23:59:24,107 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 23:59:24,107 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 23:59:24,107 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 23:59:24,108 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 23:59:24,108 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 23:59:24,108 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 23:59:24,108 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 23:59:24,108 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 23:59:24,108 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 23:59:24,108 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 23:59:24,108 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 23:59:24,108 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 23:59:24,108 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 23:59:24,108 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 23:59:24,109 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 23:59:24,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 23:59:24,109 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 23:59:24,109 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_e5c674c9-247a-46fe-8dd3-7127035482e3/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 -> 479d7a523c3017197f67f447a9067f337404603c [2018-12-08 23:59:24,126 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 23:59:24,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 23:59:24,135 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 23:59:24,136 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 23:59:24,136 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 23:59:24,136 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e5c674c9-247a-46fe-8dd3-7127035482e3/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe029_tso.opt_true-unreach-call.i [2018-12-08 23:59:24,171 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e5c674c9-247a-46fe-8dd3-7127035482e3/bin-2019/utaipan/data/94a8ab89c/81859dbaf1354cd8a8fef35f1fd831cf/FLAGd8d247523 [2018-12-08 23:59:24,675 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 23:59:24,675 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e5c674c9-247a-46fe-8dd3-7127035482e3/sv-benchmarks/c/pthread-wmm/safe029_tso.opt_true-unreach-call.i [2018-12-08 23:59:24,681 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e5c674c9-247a-46fe-8dd3-7127035482e3/bin-2019/utaipan/data/94a8ab89c/81859dbaf1354cd8a8fef35f1fd831cf/FLAGd8d247523 [2018-12-08 23:59:24,689 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e5c674c9-247a-46fe-8dd3-7127035482e3/bin-2019/utaipan/data/94a8ab89c/81859dbaf1354cd8a8fef35f1fd831cf [2018-12-08 23:59:24,690 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 23:59:24,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 23:59:24,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 23:59:24,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 23:59:24,694 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 23:59:24,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:59:24" (1/1) ... [2018-12-08 23:59:24,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d0bf627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:24, skipping insertion in model container [2018-12-08 23:59:24,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:59:24" (1/1) ... [2018-12-08 23:59:24,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 23:59:24,718 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 23:59:24,874 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:59:24,882 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 23:59:24,952 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:59:24,995 INFO L195 MainTranslator]: Completed translation [2018-12-08 23:59:24,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:24 WrapperNode [2018-12-08 23:59:24,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 23:59:24,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 23:59:24,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 23:59:24,996 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 23:59:25,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:24" (1/1) ... [2018-12-08 23:59:25,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:24" (1/1) ... [2018-12-08 23:59:25,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 23:59:25,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 23:59:25,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 23:59:25,023 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 23:59:25,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:24" (1/1) ... [2018-12-08 23:59:25,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:24" (1/1) ... [2018-12-08 23:59:25,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:24" (1/1) ... [2018-12-08 23:59:25,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:24" (1/1) ... [2018-12-08 23:59:25,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:24" (1/1) ... [2018-12-08 23:59:25,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:24" (1/1) ... [2018-12-08 23:59:25,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:24" (1/1) ... [2018-12-08 23:59:25,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 23:59:25,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 23:59:25,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 23:59:25,038 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 23:59:25,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e5c674c9-247a-46fe-8dd3-7127035482e3/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 23:59:25,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 23:59:25,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 23:59:25,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-12-08 23:59:25,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 23:59:25,083 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-12-08 23:59:25,083 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-12-08 23:59:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-12-08 23:59:25,084 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-12-08 23:59:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-12-08 23:59:25,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 23:59:25,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 23:59:25,085 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 23:59:25,246 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 23:59:25,246 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-08 23:59:25,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:59:25 BoogieIcfgContainer [2018-12-08 23:59:25,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 23:59:25,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 23:59:25,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 23:59:25,251 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 23:59:25,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:59:24" (1/3) ... [2018-12-08 23:59:25,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b04ff3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:59:25, skipping insertion in model container [2018-12-08 23:59:25,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:59:24" (2/3) ... [2018-12-08 23:59:25,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b04ff3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:59:25, skipping insertion in model container [2018-12-08 23:59:25,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:59:25" (3/3) ... [2018-12-08 23:59:25,254 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_tso.opt_true-unreach-call.i [2018-12-08 23:59:25,277 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,277 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,277 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,277 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,278 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,278 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,278 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,278 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,278 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,279 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,279 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,279 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,279 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,279 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,280 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,280 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,280 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,280 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,280 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,280 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 23:59:25,290 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-08 23:59:25,290 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 23:59:25,294 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 23:59:25,302 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 23:59:25,317 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 23:59:25,317 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 23:59:25,317 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 23:59:25,317 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 23:59:25,318 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 23:59:25,318 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 23:59:25,318 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 23:59:25,318 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 23:59:25,325 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42places, 40 transitions [2018-12-08 23:59:25,347 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 432 states. [2018-12-08 23:59:25,349 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states. [2018-12-08 23:59:25,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 23:59:25,356 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:59:25,357 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 23:59:25,358 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:59:25,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:59:25,362 INFO L82 PathProgramCache]: Analyzing trace with hash 225777697, now seen corresponding path program 1 times [2018-12-08 23:59:25,363 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:59:25,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:59:25,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:59:25,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:59:25,398 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:59:25,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:59:25,488 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 23:59:25,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:59:25,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 23:59:25,490 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:59:25,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 23:59:25,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 23:59:25,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 23:59:25,503 INFO L87 Difference]: Start difference. First operand 432 states. Second operand 4 states. [2018-12-08 23:59:25,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:59:25,553 INFO L93 Difference]: Finished difference Result 442 states and 1059 transitions. [2018-12-08 23:59:25,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 23:59:25,554 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-12-08 23:59:25,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:59:25,563 INFO L225 Difference]: With dead ends: 442 [2018-12-08 23:59:25,563 INFO L226 Difference]: Without dead ends: 225 [2018-12-08 23:59:25,564 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 23:59:25,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2018-12-08 23:59:25,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2018-12-08 23:59:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-12-08 23:59:25,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 522 transitions. [2018-12-08 23:59:25,592 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 522 transitions. Word has length 23 [2018-12-08 23:59:25,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:59:25,593 INFO L480 AbstractCegarLoop]: Abstraction has 225 states and 522 transitions. [2018-12-08 23:59:25,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 23:59:25,593 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 522 transitions. [2018-12-08 23:59:25,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 23:59:25,593 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:59:25,593 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] [2018-12-08 23:59:25,594 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:59:25,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:59:25,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1052719777, now seen corresponding path program 1 times [2018-12-08 23:59:25,594 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:59:25,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:59:25,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:59:25,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:59:25,597 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:59:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:59:25,637 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 23:59:25,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:59:25,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 23:59:25,638 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:59:25,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 23:59:25,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 23:59:25,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-08 23:59:25,639 INFO L87 Difference]: Start difference. First operand 225 states and 522 transitions. Second operand 5 states. [2018-12-08 23:59:25,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:59:25,674 INFO L93 Difference]: Finished difference Result 193 states and 414 transitions. [2018-12-08 23:59:25,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:59:25,675 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-12-08 23:59:25,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:59:25,676 INFO L225 Difference]: With dead ends: 193 [2018-12-08 23:59:25,676 INFO L226 Difference]: Without dead ends: 169 [2018-12-08 23:59:25,677 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-12-08 23:59:25,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-12-08 23:59:25,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2018-12-08 23:59:25,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-12-08 23:59:25,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 368 transitions. [2018-12-08 23:59:25,686 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 368 transitions. Word has length 24 [2018-12-08 23:59:25,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:59:25,686 INFO L480 AbstractCegarLoop]: Abstraction has 169 states and 368 transitions. [2018-12-08 23:59:25,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 23:59:25,687 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 368 transitions. [2018-12-08 23:59:25,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 23:59:25,688 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:59:25,688 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 23:59:25,688 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:59:25,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:59:25,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1202471141, now seen corresponding path program 1 times [2018-12-08 23:59:25,689 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:59:25,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:59:25,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:59:25,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:59:25,693 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:59:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:59:25,752 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 23:59:25,753 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:59:25,753 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 23:59:25,753 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:59:25,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 23:59:25,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 23:59:25,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 23:59:25,754 INFO L87 Difference]: Start difference. First operand 169 states and 368 transitions. Second operand 6 states. [2018-12-08 23:59:25,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:59:25,790 INFO L93 Difference]: Finished difference Result 265 states and 592 transitions. [2018-12-08 23:59:25,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 23:59:25,791 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-12-08 23:59:25,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:59:25,791 INFO L225 Difference]: With dead ends: 265 [2018-12-08 23:59:25,791 INFO L226 Difference]: Without dead ends: 149 [2018-12-08 23:59:25,792 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-08 23:59:25,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-12-08 23:59:25,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-12-08 23:59:25,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-12-08 23:59:25,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 328 transitions. [2018-12-08 23:59:25,795 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 328 transitions. Word has length 25 [2018-12-08 23:59:25,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:59:25,796 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 328 transitions. [2018-12-08 23:59:25,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 23:59:25,796 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 328 transitions. [2018-12-08 23:59:25,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 23:59:25,796 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 23:59:25,796 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 23:59:25,796 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 23:59:25,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:59:25,797 INFO L82 PathProgramCache]: Analyzing trace with hash -6935323, now seen corresponding path program 2 times [2018-12-08 23:59:25,797 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 23:59:25,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:59:25,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:59:25,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:59:25,798 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 23:59:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:59:25,860 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 23:59:25,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:59:25,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-08 23:59:25,861 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 23:59:25,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 23:59:25,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 23:59:25,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-12-08 23:59:25,861 INFO L87 Difference]: Start difference. First operand 149 states and 328 transitions. Second operand 9 states. [2018-12-08 23:59:25,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:59:25,920 INFO L93 Difference]: Finished difference Result 117 states and 248 transitions. [2018-12-08 23:59:25,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 23:59:25,921 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2018-12-08 23:59:25,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 23:59:25,921 INFO L225 Difference]: With dead ends: 117 [2018-12-08 23:59:25,921 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 23:59:25,921 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-12-08 23:59:25,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 23:59:25,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 23:59:25,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 23:59:25,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 23:59:25,922 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-12-08 23:59:25,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 23:59:25,922 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 23:59:25,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 23:59:25,922 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 23:59:25,922 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 23:59:25,924 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-08 23:59:25,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 11:59:25 BasicIcfg [2018-12-08 23:59:25,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 23:59:25,927 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 23:59:25,927 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 23:59:25,927 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 23:59:25,927 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:59:25" (3/4) ... [2018-12-08 23:59:25,929 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 23:59:25,933 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-12-08 23:59:25,933 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-12-08 23:59:25,936 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-08 23:59:25,936 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 23:59:25,959 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e5c674c9-247a-46fe-8dd3-7127035482e3/bin-2019/utaipan/witness.graphml [2018-12-08 23:59:25,959 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 23:59:25,960 INFO L168 Benchmark]: Toolchain (without parser) took 1268.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 953.5 MB in the beginning and 970.8 MB in the end (delta: -17.4 MB). Peak memory consumption was 110.0 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:25,961 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:59:25,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:25,961 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:59:25,961 INFO L168 Benchmark]: Boogie Preprocessor took 15.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:25,962 INFO L168 Benchmark]: RCFGBuilder took 208.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:25,962 INFO L168 Benchmark]: TraceAbstraction took 678.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.8 MB in the end (delta: 104.8 MB). Peak memory consumption was 104.8 MB. Max. memory is 11.5 GB. [2018-12-08 23:59:25,962 INFO L168 Benchmark]: Witness Printer took 32.53 ms. Allocated memory is still 1.2 GB. Free memory is still 970.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:59:25,964 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 303.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 208.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 678.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.8 MB in the end (delta: 104.8 MB). Peak memory consumption was 104.8 MB. Max. memory is 11.5 GB. * Witness Printer took 32.53 ms. Allocated memory is still 1.2 GB. Free memory is still 970.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 52 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 158 SDtfs, 139 SDslu, 432 SDs, 0 SdLazy, 74 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=432occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 5985 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...