./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stateful01_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_760b923c-db5c-40fd-bddb-9fcad9ac05c4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_760b923c-db5c-40fd-bddb-9fcad9ac05c4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_760b923c-db5c-40fd-bddb-9fcad9ac05c4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_760b923c-db5c-40fd-bddb-9fcad9ac05c4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stateful01_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_760b923c-db5c-40fd-bddb-9fcad9ac05c4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_760b923c-db5c-40fd-bddb-9fcad9ac05c4/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 df5358766477287cbf5f72515a3b367ae9dfb054 ................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 21:47:34,498 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 21:47:34,499 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 21:47:34,507 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 21:47:34,507 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 21:47:34,508 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 21:47:34,508 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 21:47:34,510 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 21:47:34,511 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 21:47:34,511 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 21:47:34,512 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 21:47:34,512 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 21:47:34,512 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 21:47:34,513 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 21:47:34,513 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 21:47:34,514 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 21:47:34,514 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 21:47:34,515 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 21:47:34,516 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 21:47:34,517 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 21:47:34,518 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 21:47:34,518 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 21:47:34,519 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 21:47:34,519 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 21:47:34,520 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 21:47:34,520 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 21:47:34,521 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 21:47:34,522 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 21:47:34,522 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 21:47:34,523 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 21:47:34,523 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 21:47:34,524 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 21:47:34,524 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 21:47:34,524 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 21:47:34,525 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 21:47:34,525 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 21:47:34,526 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_760b923c-db5c-40fd-bddb-9fcad9ac05c4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-22 21:47:34,536 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 21:47:34,536 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 21:47:34,537 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 21:47:34,537 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 21:47:34,537 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 21:47:34,537 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 21:47:34,538 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 21:47:34,538 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-22 21:47:34,538 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 21:47:34,538 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 21:47:34,538 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-22 21:47:34,538 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-22 21:47:34,538 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 21:47:34,539 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 21:47:34,539 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 21:47:34,539 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 21:47:34,539 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 21:47:34,539 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 21:47:34,540 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 21:47:34,540 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 21:47:34,540 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 21:47:34,540 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 21:47:34,540 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 21:47:34,540 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 21:47:34,540 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 21:47:34,541 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 21:47:34,541 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 21:47:34,541 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 21:47:34,541 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 21:47:34,541 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:47:34,541 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 21:47:34,541 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 21:47:34,541 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 21:47:34,542 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-22 21:47:34,542 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 21:47:34,542 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 21:47:34,542 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-22 21:47:34,542 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_760b923c-db5c-40fd-bddb-9fcad9ac05c4/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 -> df5358766477287cbf5f72515a3b367ae9dfb054 [2018-11-22 21:47:34,567 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 21:47:34,574 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 21:47:34,576 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 21:47:34,577 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 21:47:34,577 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 21:47:34,578 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_760b923c-db5c-40fd-bddb-9fcad9ac05c4/bin-2019/utaipan/../../sv-benchmarks/c/pthread/stateful01_true-unreach-call.i [2018-11-22 21:47:34,616 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_760b923c-db5c-40fd-bddb-9fcad9ac05c4/bin-2019/utaipan/data/e667a089c/dc4b0abaa19a4b169ca27809c3e0c256/FLAGb6cf1ffaf [2018-11-22 21:47:35,057 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 21:47:35,058 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_760b923c-db5c-40fd-bddb-9fcad9ac05c4/sv-benchmarks/c/pthread/stateful01_true-unreach-call.i [2018-11-22 21:47:35,065 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_760b923c-db5c-40fd-bddb-9fcad9ac05c4/bin-2019/utaipan/data/e667a089c/dc4b0abaa19a4b169ca27809c3e0c256/FLAGb6cf1ffaf [2018-11-22 21:47:35,074 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_760b923c-db5c-40fd-bddb-9fcad9ac05c4/bin-2019/utaipan/data/e667a089c/dc4b0abaa19a4b169ca27809c3e0c256 [2018-11-22 21:47:35,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 21:47:35,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 21:47:35,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 21:47:35,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 21:47:35,080 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 21:47:35,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:47:35" (1/1) ... [2018-11-22 21:47:35,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7928f009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:35, skipping insertion in model container [2018-11-22 21:47:35,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:47:35" (1/1) ... [2018-11-22 21:47:35,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 21:47:35,119 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 21:47:35,339 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:47:35,351 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 21:47:35,430 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:47:35,464 INFO L195 MainTranslator]: Completed translation [2018-11-22 21:47:35,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:35 WrapperNode [2018-11-22 21:47:35,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 21:47:35,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 21:47:35,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 21:47:35,466 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 21:47:35,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:35" (1/1) ... [2018-11-22 21:47:35,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:35" (1/1) ... [2018-11-22 21:47:35,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 21:47:35,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 21:47:35,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 21:47:35,497 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 21:47:35,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:35" (1/1) ... [2018-11-22 21:47:35,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:35" (1/1) ... [2018-11-22 21:47:35,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:35" (1/1) ... [2018-11-22 21:47:35,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:35" (1/1) ... [2018-11-22 21:47:35,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:35" (1/1) ... [2018-11-22 21:47:35,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:35" (1/1) ... [2018-11-22 21:47:35,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:35" (1/1) ... [2018-11-22 21:47:35,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 21:47:35,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 21:47:35,517 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 21:47:35,517 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 21:47:35,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_760b923c-db5c-40fd-bddb-9fcad9ac05c4/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 [2018-11-22 21:47:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 21:47:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-22 21:47:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2018-11-22 21:47:35,553 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2018-11-22 21:47:35,553 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2018-11-22 21:47:35,553 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2018-11-22 21:47:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-22 21:47:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-11-22 21:47:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-22 21:47:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-22 21:47:35,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 21:47:35,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 21:47:35,555 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-22 21:47:35,790 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 21:47:35,790 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-22 21:47:35,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:47:35 BoogieIcfgContainer [2018-11-22 21:47:35,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 21:47:35,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 21:47:35,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 21:47:35,794 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 21:47:35,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:47:35" (1/3) ... [2018-11-22 21:47:35,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1387051a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:47:35, skipping insertion in model container [2018-11-22 21:47:35,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:47:35" (2/3) ... [2018-11-22 21:47:35,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1387051a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:47:35, skipping insertion in model container [2018-11-22 21:47:35,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:47:35" (3/3) ... [2018-11-22 21:47:35,797 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01_true-unreach-call.i [2018-11-22 21:47:35,819 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,819 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,819 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,819 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,819 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,819 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,820 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,820 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,820 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,820 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,820 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,821 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,821 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,821 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,821 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,821 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,822 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,822 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,822 WARN L317 ript$VariableManager]: TermVariabe Thread1_thread2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,822 WARN L317 ript$VariableManager]: TermVariabe Thread1_thread2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,822 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,822 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,823 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,823 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,823 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,823 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:47:35,834 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-22 21:47:35,834 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 21:47:35,839 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 21:47:35,853 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 21:47:35,870 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 21:47:35,870 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 21:47:35,870 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 21:47:35,870 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 21:47:35,870 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 21:47:35,871 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 21:47:35,871 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 21:47:35,871 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 21:47:35,880 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75places, 75 transitions [2018-11-22 21:47:35,912 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 746 states. [2018-11-22 21:47:35,914 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states. [2018-11-22 21:47:35,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-22 21:47:35,931 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:47:35,932 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2018-11-22 21:47:35,934 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:47:35,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:47:35,939 INFO L82 PathProgramCache]: Analyzing trace with hash 275765864, now seen corresponding path program 1 times [2018-11-22 21:47:35,941 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:47:35,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:47:35,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:47:35,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:47:35,978 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:47:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:47:36,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:47:36,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:47:36,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-22 21:47:36,155 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:47:36,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-22 21:47:36,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-22 21:47:36,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-22 21:47:36,168 INFO L87 Difference]: Start difference. First operand 746 states. Second operand 5 states. [2018-11-22 21:47:36,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:47:36,251 INFO L93 Difference]: Finished difference Result 746 states and 1745 transitions. [2018-11-22 21:47:36,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-22 21:47:36,252 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2018-11-22 21:47:36,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:47:36,263 INFO L225 Difference]: With dead ends: 746 [2018-11-22 21:47:36,263 INFO L226 Difference]: Without dead ends: 690 [2018-11-22 21:47:36,264 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-22 21:47:36,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2018-11-22 21:47:36,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 690. [2018-11-22 21:47:36,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2018-11-22 21:47:36,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1644 transitions. [2018-11-22 21:47:36,322 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1644 transitions. Word has length 64 [2018-11-22 21:47:36,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:47:36,322 INFO L480 AbstractCegarLoop]: Abstraction has 690 states and 1644 transitions. [2018-11-22 21:47:36,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-22 21:47:36,323 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1644 transitions. [2018-11-22 21:47:36,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-22 21:47:36,325 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:47:36,325 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2018-11-22 21:47:36,325 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:47:36,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:47:36,326 INFO L82 PathProgramCache]: Analyzing trace with hash -468543252, now seen corresponding path program 1 times [2018-11-22 21:47:36,326 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:47:36,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:47:36,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:47:36,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:47:36,330 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:47:36,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:47:36,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:47:36,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:47:36,379 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-22 21:47:36,379 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:47:36,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 21:47:36,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 21:47:36,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 21:47:36,380 INFO L87 Difference]: Start difference. First operand 690 states and 1644 transitions. Second operand 3 states. [2018-11-22 21:47:36,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:47:36,426 INFO L93 Difference]: Finished difference Result 510 states and 1068 transitions. [2018-11-22 21:47:36,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 21:47:36,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2018-11-22 21:47:36,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:47:36,429 INFO L225 Difference]: With dead ends: 510 [2018-11-22 21:47:36,429 INFO L226 Difference]: Without dead ends: 510 [2018-11-22 21:47:36,430 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 21:47:36,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2018-11-22 21:47:36,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2018-11-22 21:47:36,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 510 states. [2018-11-22 21:47:36,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 1068 transitions. [2018-11-22 21:47:36,443 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 1068 transitions. Word has length 64 [2018-11-22 21:47:36,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:47:36,443 INFO L480 AbstractCegarLoop]: Abstraction has 510 states and 1068 transitions. [2018-11-22 21:47:36,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 21:47:36,443 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 1068 transitions. [2018-11-22 21:47:36,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-22 21:47:36,445 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:47:36,445 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2018-11-22 21:47:36,446 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:47:36,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:47:36,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1667374444, now seen corresponding path program 2 times [2018-11-22 21:47:36,446 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:47:36,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:47:36,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:47:36,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:47:36,450 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:47:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:47:36,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:47:36,569 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:47:36,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 21:47:36,570 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:47:36,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 21:47:36,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 21:47:36,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-22 21:47:36,570 INFO L87 Difference]: Start difference. First operand 510 states and 1068 transitions. Second operand 6 states. [2018-11-22 21:47:36,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:47:36,622 INFO L93 Difference]: Finished difference Result 677 states and 1421 transitions. [2018-11-22 21:47:36,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 21:47:36,622 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2018-11-22 21:47:36,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:47:36,624 INFO L225 Difference]: With dead ends: 677 [2018-11-22 21:47:36,624 INFO L226 Difference]: Without dead ends: 390 [2018-11-22 21:47:36,625 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-22 21:47:36,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2018-11-22 21:47:36,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2018-11-22 21:47:36,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2018-11-22 21:47:36,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 796 transitions. [2018-11-22 21:47:36,631 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 796 transitions. Word has length 64 [2018-11-22 21:47:36,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:47:36,632 INFO L480 AbstractCegarLoop]: Abstraction has 390 states and 796 transitions. [2018-11-22 21:47:36,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 21:47:36,632 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 796 transitions. [2018-11-22 21:47:36,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-22 21:47:36,633 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:47:36,634 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2018-11-22 21:47:36,634 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:47:36,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:47:36,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1998990736, now seen corresponding path program 3 times [2018-11-22 21:47:36,634 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:47:36,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:47:36,637 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 21:47:36,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:47:36,637 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:47:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:47:36,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:47:36,748 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:47:36,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 21:47:36,748 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:47:36,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 21:47:36,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 21:47:36,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-22 21:47:36,750 INFO L87 Difference]: Start difference. First operand 390 states and 796 transitions. Second operand 6 states. [2018-11-22 21:47:36,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:47:36,784 INFO L93 Difference]: Finished difference Result 388 states and 794 transitions. [2018-11-22 21:47:36,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-22 21:47:36,785 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2018-11-22 21:47:36,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:47:36,785 INFO L225 Difference]: With dead ends: 388 [2018-11-22 21:47:36,785 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 21:47:36,786 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-22 21:47:36,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 21:47:36,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 21:47:36,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 21:47:36,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 21:47:36,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2018-11-22 21:47:36,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:47:36,787 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:47:36,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 21:47:36,787 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 21:47:36,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 21:47:36,789 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-22 21:47:36,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:47:36 BasicIcfg [2018-11-22 21:47:36,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 21:47:36,791 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 21:47:36,791 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 21:47:36,791 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 21:47:36,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:47:35" (3/4) ... [2018-11-22 21:47:36,794 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 21:47:36,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2018-11-22 21:47:36,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2018-11-22 21:47:36,802 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-22 21:47:36,803 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-22 21:47:36,834 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_760b923c-db5c-40fd-bddb-9fcad9ac05c4/bin-2019/utaipan/witness.graphml [2018-11-22 21:47:36,835 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 21:47:36,835 INFO L168 Benchmark]: Toolchain (without parser) took 1759.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 951.1 MB in the beginning and 938.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 150.8 MB. Max. memory is 11.5 GB. [2018-11-22 21:47:36,837 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:47:36,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 387.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -166.4 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-22 21:47:36,838 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.79 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-22 21:47:36,838 INFO L168 Benchmark]: Boogie Preprocessor took 19.58 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. [2018-11-22 21:47:36,838 INFO L168 Benchmark]: RCFGBuilder took 274.56 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: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2018-11-22 21:47:36,838 INFO L168 Benchmark]: TraceAbstraction took 998.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.7 MB in the end (delta: 146.1 MB). Peak memory consumption was 146.1 MB. Max. memory is 11.5 GB. [2018-11-22 21:47:36,839 INFO L168 Benchmark]: Witness Printer took 44.04 ms. Allocated memory is still 1.2 GB. Free memory was 941.7 MB in the beginning and 938.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-22 21:47:36,841 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 387.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -166.4 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.79 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.58 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 274.56 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: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 998.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.7 MB in the end (delta: 146.1 MB). Peak memory consumption was 146.1 MB. Max. memory is 11.5 GB. * Witness Printer took 44.04 ms. Allocated memory is still 1.2 GB. Free memory was 941.7 MB in the beginning and 938.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1245]: 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, 103 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 359 SDtfs, 172 SDslu, 738 SDs, 0 SdLazy, 87 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=746occurred 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, 0.3s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 59157 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...