./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe036_power.opt_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5b2a274d-7f3f-4c15-89cd-e17d0a0514df/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5b2a274d-7f3f-4c15-89cd-e17d0a0514df/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5b2a274d-7f3f-4c15-89cd-e17d0a0514df/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5b2a274d-7f3f-4c15-89cd-e17d0a0514df/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe036_power.opt_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5b2a274d-7f3f-4c15-89cd-e17d0a0514df/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5b2a274d-7f3f-4c15-89cd-e17d0a0514df/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 15594d4e2a0e3027125200c04dec9d74d7abb939 ............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:29:14,453 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:29:14,454 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:29:14,462 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:29:14,462 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:29:14,463 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:29:14,464 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:29:14,465 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:29:14,466 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:29:14,466 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:29:14,467 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:29:14,467 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:29:14,468 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:29:14,468 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:29:14,469 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:29:14,470 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:29:14,470 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:29:14,471 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:29:14,472 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:29:14,473 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:29:14,474 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:29:14,475 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:29:14,476 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:29:14,476 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:29:14,476 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:29:14,477 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:29:14,478 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:29:14,478 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:29:14,479 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:29:14,479 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:29:14,479 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:29:14,480 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:29:14,480 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:29:14,480 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:29:14,481 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:29:14,481 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:29:14,481 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5b2a274d-7f3f-4c15-89cd-e17d0a0514df/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 14:29:14,490 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:29:14,491 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:29:14,491 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:29:14,491 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:29:14,491 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 14:29:14,492 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 14:29:14,492 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 14:29:14,492 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 14:29:14,492 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 14:29:14,492 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 14:29:14,492 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 14:29:14,492 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 14:29:14,492 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 14:29:14,493 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:29:14,493 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:29:14,493 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:29:14,493 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:29:14,493 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:29:14,494 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:29:14,494 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:29:14,494 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:29:14,494 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:29:14,494 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:29:14,494 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:29:14,494 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:29:14,494 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:29:14,495 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:29:14,495 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:29:14,495 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:29:14,495 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:29:14,495 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:29:14,495 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:29:14,495 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:29:14,495 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 14:29:14,496 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:29:14,496 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:29:14,496 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 14:29:14,496 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_5b2a274d-7f3f-4c15-89cd-e17d0a0514df/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 -> 15594d4e2a0e3027125200c04dec9d74d7abb939 [2018-11-23 14:29:14,519 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:29:14,528 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:29:14,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:29:14,531 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:29:14,532 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:29:14,532 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5b2a274d-7f3f-4c15-89cd-e17d0a0514df/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe036_power.opt_true-unreach-call.i [2018-11-23 14:29:14,576 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5b2a274d-7f3f-4c15-89cd-e17d0a0514df/bin-2019/utaipan/data/940d29258/4a392c4fa9224407bf96cb296dd036ec/FLAGaa0af10e2 [2018-11-23 14:29:14,940 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:29:14,941 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5b2a274d-7f3f-4c15-89cd-e17d0a0514df/sv-benchmarks/c/pthread-wmm/safe036_power.opt_true-unreach-call.i [2018-11-23 14:29:14,951 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5b2a274d-7f3f-4c15-89cd-e17d0a0514df/bin-2019/utaipan/data/940d29258/4a392c4fa9224407bf96cb296dd036ec/FLAGaa0af10e2 [2018-11-23 14:29:14,961 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5b2a274d-7f3f-4c15-89cd-e17d0a0514df/bin-2019/utaipan/data/940d29258/4a392c4fa9224407bf96cb296dd036ec [2018-11-23 14:29:14,963 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:29:14,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:29:14,964 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:29:14,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:29:14,967 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:29:14,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:29:14" (1/1) ... [2018-11-23 14:29:14,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28603259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:14, skipping insertion in model container [2018-11-23 14:29:14,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:29:14" (1/1) ... [2018-11-23 14:29:14,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:29:15,003 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:29:15,208 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:29:15,215 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:29:15,289 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:29:15,329 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:29:15,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:15 WrapperNode [2018-11-23 14:29:15,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:29:15,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:29:15,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:29:15,330 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:29:15,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:15" (1/1) ... [2018-11-23 14:29:15,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:15" (1/1) ... [2018-11-23 14:29:15,358 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:29:15,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:29:15,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:29:15,359 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:29:15,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:15" (1/1) ... [2018-11-23 14:29:15,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:15" (1/1) ... [2018-11-23 14:29:15,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:15" (1/1) ... [2018-11-23 14:29:15,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:15" (1/1) ... [2018-11-23 14:29:15,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:15" (1/1) ... [2018-11-23 14:29:15,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:15" (1/1) ... [2018-11-23 14:29:15,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:15" (1/1) ... [2018-11-23 14:29:15,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:29:15,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:29:15,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:29:15,373 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:29:15,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5b2a274d-7f3f-4c15-89cd-e17d0a0514df/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:29:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 14:29:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 14:29:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-23 14:29:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 14:29:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-23 14:29:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-23 14:29:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-23 14:29:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-23 14:29:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-23 14:29:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:29:15,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:29:15,409 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-23 14:29:15,603 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:29:15,603 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 14:29:15,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:29:15 BoogieIcfgContainer [2018-11-23 14:29:15,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:29:15,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:29:15,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:29:15,607 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:29:15,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:29:14" (1/3) ... [2018-11-23 14:29:15,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a4c6203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:29:15, skipping insertion in model container [2018-11-23 14:29:15,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:15" (2/3) ... [2018-11-23 14:29:15,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a4c6203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:29:15, skipping insertion in model container [2018-11-23 14:29:15,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:29:15" (3/3) ... [2018-11-23 14:29:15,609 INFO L112 eAbstractionObserver]: Analyzing ICFG safe036_power.opt_true-unreach-call.i [2018-11-23 14:29:15,633 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,633 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,633 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,633 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,634 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,634 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,634 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,634 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,634 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,634 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,635 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,635 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,635 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,635 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,635 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,636 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,636 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,636 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,636 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,636 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:29:15,645 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 14:29:15,645 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:29:15,650 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 14:29:15,659 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 14:29:15,674 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:29:15,674 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 14:29:15,674 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:29:15,674 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:29:15,674 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:29:15,674 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:29:15,675 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:29:15,675 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:29:15,682 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44places, 42 transitions [2018-11-23 14:29:15,706 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 434 states. [2018-11-23 14:29:15,708 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states. [2018-11-23 14:29:15,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 14:29:15,715 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:29:15,715 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] [2018-11-23 14:29:15,717 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:29:15,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:29:15,720 INFO L82 PathProgramCache]: Analyzing trace with hash 2119373415, now seen corresponding path program 1 times [2018-11-23 14:29:15,721 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:29:15,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:29:15,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:29:15,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:29:15,757 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:29:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:29:15,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:29:15,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:29:15,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 14:29:15,867 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:29:15,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 14:29:15,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 14:29:15,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:29:15,881 INFO L87 Difference]: Start difference. First operand 434 states. Second operand 4 states. [2018-11-23 14:29:15,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:29:15,947 INFO L93 Difference]: Finished difference Result 444 states and 1061 transitions. [2018-11-23 14:29:15,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 14:29:15,949 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-11-23 14:29:15,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:29:15,957 INFO L225 Difference]: With dead ends: 444 [2018-11-23 14:29:15,958 INFO L226 Difference]: Without dead ends: 227 [2018-11-23 14:29:15,959 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 [2018-11-23 14:29:15,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-11-23 14:29:15,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2018-11-23 14:29:15,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2018-11-23 14:29:15,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 524 transitions. [2018-11-23 14:29:15,987 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 524 transitions. Word has length 25 [2018-11-23 14:29:15,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:29:15,988 INFO L480 AbstractCegarLoop]: Abstraction has 227 states and 524 transitions. [2018-11-23 14:29:15,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 14:29:15,988 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 524 transitions. [2018-11-23 14:29:15,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 14:29:15,989 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:29:15,989 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] [2018-11-23 14:29:15,989 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:29:15,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:29:15,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1838814607, now seen corresponding path program 1 times [2018-11-23 14:29:15,990 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:29:15,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:29:15,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:29:15,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:29:15,994 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:29:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:29:16,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:29:16,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:29:16,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 14:29:16,072 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:29:16,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 14:29:16,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 14:29:16,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 14:29:16,074 INFO L87 Difference]: Start difference. First operand 227 states and 524 transitions. Second operand 5 states. [2018-11-23 14:29:16,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:29:16,111 INFO L93 Difference]: Finished difference Result 195 states and 416 transitions. [2018-11-23 14:29:16,112 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 14:29:16,112 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-11-23 14:29:16,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:29:16,113 INFO L225 Difference]: With dead ends: 195 [2018-11-23 14:29:16,113 INFO L226 Difference]: Without dead ends: 171 [2018-11-23 14:29:16,114 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 [2018-11-23 14:29:16,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-11-23 14:29:16,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2018-11-23 14:29:16,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-11-23 14:29:16,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 370 transitions. [2018-11-23 14:29:16,123 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 370 transitions. Word has length 26 [2018-11-23 14:29:16,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:29:16,124 INFO L480 AbstractCegarLoop]: Abstraction has 171 states and 370 transitions. [2018-11-23 14:29:16,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 14:29:16,124 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 370 transitions. [2018-11-23 14:29:16,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 14:29:16,126 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:29:16,126 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] [2018-11-23 14:29:16,126 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:29:16,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:29:16,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1630101547, now seen corresponding path program 1 times [2018-11-23 14:29:16,127 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:29:16,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:29:16,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:29:16,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:29:16,132 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:29:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:29:16,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:29:16,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:29:16,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 14:29:16,237 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:29:16,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 14:29:16,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 14:29:16,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 14:29:16,237 INFO L87 Difference]: Start difference. First operand 171 states and 370 transitions. Second operand 8 states. [2018-11-23 14:29:16,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:29:16,382 INFO L93 Difference]: Finished difference Result 267 states and 594 transitions. [2018-11-23 14:29:16,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 14:29:16,383 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-11-23 14:29:16,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:29:16,384 INFO L225 Difference]: With dead ends: 267 [2018-11-23 14:29:16,384 INFO L226 Difference]: Without dead ends: 167 [2018-11-23 14:29:16,384 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2018-11-23 14:29:16,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-11-23 14:29:16,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2018-11-23 14:29:16,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-11-23 14:29:16,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 362 transitions. [2018-11-23 14:29:16,394 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 362 transitions. Word has length 27 [2018-11-23 14:29:16,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:29:16,394 INFO L480 AbstractCegarLoop]: Abstraction has 167 states and 362 transitions. [2018-11-23 14:29:16,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 14:29:16,394 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 362 transitions. [2018-11-23 14:29:16,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 14:29:16,395 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:29:16,395 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] [2018-11-23 14:29:16,396 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:29:16,396 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:29:16,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1348708445, now seen corresponding path program 2 times [2018-11-23 14:29:16,396 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 14:29:16,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:29:16,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:29:16,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:29:16,400 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 14:29:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:29:16,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:29:16,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:29:16,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 14:29:16,452 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 14:29:16,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 14:29:16,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 14:29:16,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 14:29:16,453 INFO L87 Difference]: Start difference. First operand 167 states and 362 transitions. Second operand 7 states. [2018-11-23 14:29:16,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:29:16,531 INFO L93 Difference]: Finished difference Result 135 states and 282 transitions. [2018-11-23 14:29:16,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 14:29:16,531 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-11-23 14:29:16,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:29:16,532 INFO L225 Difference]: With dead ends: 135 [2018-11-23 14:29:16,532 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 14:29:16,532 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-23 14:29:16,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 14:29:16,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 14:29:16,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 14:29:16,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 14:29:16,533 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-11-23 14:29:16,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:29:16,534 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:29:16,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 14:29:16,534 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 14:29:16,534 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 14:29:16,537 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-23 14:29:16,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:29:16 BasicIcfg [2018-11-23 14:29:16,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 14:29:16,539 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:29:16,539 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:29:16,539 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:29:16,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:29:15" (3/4) ... [2018-11-23 14:29:16,543 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 14:29:16,549 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-23 14:29:16,549 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-23 14:29:16,552 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 14:29:16,552 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 14:29:16,586 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5b2a274d-7f3f-4c15-89cd-e17d0a0514df/bin-2019/utaipan/witness.graphml [2018-11-23 14:29:16,586 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:29:16,587 INFO L168 Benchmark]: Toolchain (without parser) took 1623.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.0 MB). Free memory was 952.1 MB in the beginning and 1.0 GB in the end (delta: -51.9 MB). Peak memory consumption was 121.1 MB. Max. memory is 11.5 GB. [2018-11-23 14:29:16,588 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:29:16,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.0 MB). Free memory was 952.1 MB in the beginning and 1.2 GB in the end (delta: -199.4 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2018-11-23 14:29:16,589 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-23 14:29:16,589 INFO L168 Benchmark]: Boogie Preprocessor took 13.82 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. [2018-11-23 14:29:16,590 INFO L168 Benchmark]: RCFGBuilder took 231.23 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: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-11-23 14:29:16,590 INFO L168 Benchmark]: TraceAbstraction took 934.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 120.0 MB). Peak memory consumption was 120.0 MB. Max. memory is 11.5 GB. [2018-11-23 14:29:16,590 INFO L168 Benchmark]: Witness Printer took 47.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-23 14:29:16,592 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 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 364.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.0 MB). Free memory was 952.1 MB in the beginning and 1.2 GB in the end (delta: -199.4 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.82 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. * RCFGBuilder took 231.23 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: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 934.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 120.0 MB). Peak memory consumption was 120.0 MB. Max. memory is 11.5 GB. * Witness Printer took 47.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. 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, 54 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 174 SDtfs, 205 SDslu, 458 SDs, 0 SdLazy, 60 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=434occurred 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, 0.2s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 6141 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...