./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe002_tso.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_cf944a77-da1f-4bd4-b795-e9d1576efe92/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cf944a77-da1f-4bd4-b795-e9d1576efe92/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cf944a77-da1f-4bd4-b795-e9d1576efe92/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cf944a77-da1f-4bd4-b795-e9d1576efe92/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe002_tso.opt_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_cf944a77-da1f-4bd4-b795-e9d1576efe92/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cf944a77-da1f-4bd4-b795-e9d1576efe92/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 1859a3f82ccb52fdac0b3d3089ee05d9c7c6bcee .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 06:56:50,369 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 06:56:50,370 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 06:56:50,378 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 06:56:50,378 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 06:56:50,379 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 06:56:50,379 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 06:56:50,380 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 06:56:50,382 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 06:56:50,382 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 06:56:50,383 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 06:56:50,383 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 06:56:50,383 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 06:56:50,384 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 06:56:50,384 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 06:56:50,385 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 06:56:50,385 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 06:56:50,386 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 06:56:50,387 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 06:56:50,388 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 06:56:50,389 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 06:56:50,390 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 06:56:50,392 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 06:56:50,392 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 06:56:50,392 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 06:56:50,393 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 06:56:50,393 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 06:56:50,394 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 06:56:50,394 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 06:56:50,395 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 06:56:50,395 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 06:56:50,395 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 06:56:50,395 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 06:56:50,395 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 06:56:50,396 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 06:56:50,396 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 06:56:50,396 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cf944a77-da1f-4bd4-b795-e9d1576efe92/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 06:56:50,406 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 06:56:50,406 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 06:56:50,407 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 06:56:50,407 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 06:56:50,407 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 06:56:50,407 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 06:56:50,407 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 06:56:50,407 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 06:56:50,407 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 06:56:50,407 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 06:56:50,407 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 06:56:50,407 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 06:56:50,408 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 06:56:50,408 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 06:56:50,408 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 06:56:50,408 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 06:56:50,408 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 06:56:50,409 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 06:56:50,409 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 06:56:50,409 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 06:56:50,409 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 06:56:50,409 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 06:56:50,409 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 06:56:50,409 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 06:56:50,409 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 06:56:50,410 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 06:56:50,410 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 06:56:50,410 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 06:56:50,410 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 06:56:50,410 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 06:56:50,410 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 06:56:50,410 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 06:56:50,411 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 06:56:50,411 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 06:56:50,411 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 06:56:50,411 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 06:56:50,411 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 06:56:50,411 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_cf944a77-da1f-4bd4-b795-e9d1576efe92/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 -> 1859a3f82ccb52fdac0b3d3089ee05d9c7c6bcee [2018-11-23 06:56:50,433 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 06:56:50,441 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 06:56:50,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 06:56:50,444 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 06:56:50,444 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 06:56:50,445 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cf944a77-da1f-4bd4-b795-e9d1576efe92/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe002_tso.opt_true-unreach-call.i [2018-11-23 06:56:50,480 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cf944a77-da1f-4bd4-b795-e9d1576efe92/bin-2019/utaipan/data/3b67941fd/6d4cb332e03f42edacdcf9a7cbf18369/FLAGcec74e39b [2018-11-23 06:56:50,935 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 06:56:50,936 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cf944a77-da1f-4bd4-b795-e9d1576efe92/sv-benchmarks/c/pthread-wmm/safe002_tso.opt_true-unreach-call.i [2018-11-23 06:56:50,946 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cf944a77-da1f-4bd4-b795-e9d1576efe92/bin-2019/utaipan/data/3b67941fd/6d4cb332e03f42edacdcf9a7cbf18369/FLAGcec74e39b [2018-11-23 06:56:50,955 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cf944a77-da1f-4bd4-b795-e9d1576efe92/bin-2019/utaipan/data/3b67941fd/6d4cb332e03f42edacdcf9a7cbf18369 [2018-11-23 06:56:50,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 06:56:50,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 06:56:50,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 06:56:50,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 06:56:50,961 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 06:56:50,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:56:50" (1/1) ... [2018-11-23 06:56:50,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f7a39ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:56:50, skipping insertion in model container [2018-11-23 06:56:50,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:56:50" (1/1) ... [2018-11-23 06:56:50,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 06:56:50,997 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 06:56:51,203 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:56:51,211 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 06:56:51,283 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 06:56:51,327 INFO L195 MainTranslator]: Completed translation [2018-11-23 06:56:51,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:56:51 WrapperNode [2018-11-23 06:56:51,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 06:56:51,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 06:56:51,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 06:56:51,328 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 06:56:51,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:56:51" (1/1) ... [2018-11-23 06:56:51,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:56:51" (1/1) ... [2018-11-23 06:56:51,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 06:56:51,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 06:56:51,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 06:56:51,354 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 06:56:51,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:56:51" (1/1) ... [2018-11-23 06:56:51,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:56:51" (1/1) ... [2018-11-23 06:56:51,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:56:51" (1/1) ... [2018-11-23 06:56:51,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:56:51" (1/1) ... [2018-11-23 06:56:51,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:56:51" (1/1) ... [2018-11-23 06:56:51,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:56:51" (1/1) ... [2018-11-23 06:56:51,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:56:51" (1/1) ... [2018-11-23 06:56:51,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 06:56:51,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 06:56:51,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 06:56:51,368 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 06:56:51,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:56:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cf944a77-da1f-4bd4-b795-e9d1576efe92/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 06:56:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 06:56:51,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 06:56:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-23 06:56:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 06:56:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-23 06:56:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-23 06:56:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-23 06:56:51,402 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-23 06:56:51,402 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-23 06:56:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-23 06:56:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-23 06:56:51,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 06:56:51,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 06:56:51,404 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 06:56:51,586 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 06:56:51,587 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 06:56:51,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:56:51 BoogieIcfgContainer [2018-11-23 06:56:51,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 06:56:51,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 06:56:51,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 06:56:51,590 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 06:56:51,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:56:50" (1/3) ... [2018-11-23 06:56:51,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0c5f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:56:51, skipping insertion in model container [2018-11-23 06:56:51,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:56:51" (2/3) ... [2018-11-23 06:56:51,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a0c5f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:56:51, skipping insertion in model container [2018-11-23 06:56:51,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:56:51" (3/3) ... [2018-11-23 06:56:51,593 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_tso.opt_true-unreach-call.i [2018-11-23 06:56:51,617 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,617 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,617 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,617 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,617 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,617 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,618 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,618 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,618 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,618 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,618 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,618 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,619 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,619 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,619 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,619 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,619 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,619 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,619 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,620 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,620 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,620 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,620 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,620 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,621 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,621 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,621 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,621 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,625 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,625 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 06:56:51,633 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 06:56:51,633 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 06:56:51,638 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 06:56:51,648 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 06:56:51,664 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 06:56:51,665 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 06:56:51,665 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 06:56:51,665 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 06:56:51,665 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 06:56:51,665 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 06:56:51,665 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 06:56:51,665 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 06:56:51,671 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2018-11-23 06:56:51,733 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2018-11-23 06:56:51,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2018-11-23 06:56:51,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-23 06:56:51,747 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:56:51,748 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] [2018-11-23 06:56:51,750 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:56:51,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:56:51,753 INFO L82 PathProgramCache]: Analyzing trace with hash 137484955, now seen corresponding path program 1 times [2018-11-23 06:56:51,755 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:56:51,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:51,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:56:51,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:51,791 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:56:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:56:51,927 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 06:56:51,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:56:51,929 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 06:56:51,929 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:56:51,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 06:56:51,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 06:56:51,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 06:56:51,941 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2018-11-23 06:56:52,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:56:52,034 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2018-11-23 06:56:52,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 06:56:52,035 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-23 06:56:52,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:56:52,055 INFO L225 Difference]: With dead ends: 2493 [2018-11-23 06:56:52,055 INFO L226 Difference]: Without dead ends: 1128 [2018-11-23 06:56:52,057 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 06:56:52,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2018-11-23 06:56:52,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2018-11-23 06:56:52,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2018-11-23 06:56:52,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2018-11-23 06:56:52,138 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2018-11-23 06:56:52,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:56:52,139 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2018-11-23 06:56:52,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 06:56:52,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2018-11-23 06:56:52,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-23 06:56:52,142 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:56:52,142 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] [2018-11-23 06:56:52,143 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:56:52,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:56:52,143 INFO L82 PathProgramCache]: Analyzing trace with hash -2018730703, now seen corresponding path program 1 times [2018-11-23 06:56:52,143 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:56:52,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:52,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:56:52,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:52,148 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:56:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:56:52,206 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 06:56:52,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:56:52,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 06:56:52,206 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:56:52,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 06:56:52,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 06:56:52,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 06:56:52,209 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2018-11-23 06:56:52,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:56:52,269 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2018-11-23 06:56:52,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 06:56:52,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-23 06:56:52,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:56:52,273 INFO L225 Difference]: With dead ends: 1168 [2018-11-23 06:56:52,273 INFO L226 Difference]: Without dead ends: 1044 [2018-11-23 06:56:52,274 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 06:56:52,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2018-11-23 06:56:52,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2018-11-23 06:56:52,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2018-11-23 06:56:52,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2018-11-23 06:56:52,293 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2018-11-23 06:56:52,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:56:52,293 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2018-11-23 06:56:52,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 06:56:52,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2018-11-23 06:56:52,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-23 06:56:52,295 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:56:52,295 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] [2018-11-23 06:56:52,295 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:56:52,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:56:52,296 INFO L82 PathProgramCache]: Analyzing trace with hash 691214767, now seen corresponding path program 1 times [2018-11-23 06:56:52,296 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:56:52,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:52,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:56:52,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:52,300 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:56:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:56:52,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 06:56:52,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:56:52,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 06:56:52,378 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:56:52,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 06:56:52,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 06:56:52,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 06:56:52,379 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2018-11-23 06:56:52,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:56:52,434 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2018-11-23 06:56:52,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 06:56:52,434 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-23 06:56:52,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:56:52,436 INFO L225 Difference]: With dead ends: 820 [2018-11-23 06:56:52,437 INFO L226 Difference]: Without dead ends: 708 [2018-11-23 06:56:52,437 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-23 06:56:52,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2018-11-23 06:56:52,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2018-11-23 06:56:52,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-11-23 06:56:52,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2018-11-23 06:56:52,449 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2018-11-23 06:56:52,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:56:52,450 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2018-11-23 06:56:52,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 06:56:52,450 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2018-11-23 06:56:52,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 06:56:52,451 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:56:52,451 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] [2018-11-23 06:56:52,452 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:56:52,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:56:52,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1939982521, now seen corresponding path program 1 times [2018-11-23 06:56:52,452 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:56:52,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:52,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:56:52,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:52,455 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:56:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:56:52,542 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 06:56:52,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:56:52,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 06:56:52,542 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:56:52,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 06:56:52,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 06:56:52,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 06:56:52,543 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 7 states. [2018-11-23 06:56:52,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:56:52,611 INFO L93 Difference]: Finished difference Result 1188 states and 3491 transitions. [2018-11-23 06:56:52,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 06:56:52,611 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-23 06:56:52,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:56:52,613 INFO L225 Difference]: With dead ends: 1188 [2018-11-23 06:56:52,613 INFO L226 Difference]: Without dead ends: 672 [2018-11-23 06:56:52,614 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-23 06:56:52,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2018-11-23 06:56:52,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2018-11-23 06:56:52,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2018-11-23 06:56:52,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1975 transitions. [2018-11-23 06:56:52,625 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1975 transitions. Word has length 33 [2018-11-23 06:56:52,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:56:52,626 INFO L480 AbstractCegarLoop]: Abstraction has 672 states and 1975 transitions. [2018-11-23 06:56:52,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 06:56:52,626 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1975 transitions. [2018-11-23 06:56:52,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 06:56:52,627 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:56:52,627 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] [2018-11-23 06:56:52,627 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:56:52,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:56:52,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1074111855, now seen corresponding path program 2 times [2018-11-23 06:56:52,628 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:56:52,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:52,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 06:56:52,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:52,630 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:56:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:56:52,692 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 06:56:52,692 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:56:52,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 06:56:52,693 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:56:52,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 06:56:52,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 06:56:52,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 06:56:52,694 INFO L87 Difference]: Start difference. First operand 672 states and 1975 transitions. Second operand 7 states. [2018-11-23 06:56:52,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:56:52,781 INFO L93 Difference]: Finished difference Result 1056 states and 3159 transitions. [2018-11-23 06:56:52,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 06:56:52,781 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-23 06:56:52,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:56:52,784 INFO L225 Difference]: With dead ends: 1056 [2018-11-23 06:56:52,784 INFO L226 Difference]: Without dead ends: 556 [2018-11-23 06:56:52,784 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 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 06:56:52,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2018-11-23 06:56:52,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2018-11-23 06:56:52,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-11-23 06:56:52,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1671 transitions. [2018-11-23 06:56:52,795 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1671 transitions. Word has length 33 [2018-11-23 06:56:52,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:56:52,795 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 1671 transitions. [2018-11-23 06:56:52,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 06:56:52,795 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1671 transitions. [2018-11-23 06:56:52,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 06:56:52,796 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 06:56:52,797 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] [2018-11-23 06:56:52,797 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 06:56:52,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 06:56:52,797 INFO L82 PathProgramCache]: Analyzing trace with hash -824939639, now seen corresponding path program 3 times [2018-11-23 06:56:52,797 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 06:56:52,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:52,799 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 06:56:52,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 06:56:52,799 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 06:56:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 06:56:52,864 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 06:56:52,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 06:56:52,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 06:56:52,864 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 06:56:52,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 06:56:52,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 06:56:52,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 06:56:52,865 INFO L87 Difference]: Start difference. First operand 556 states and 1671 transitions. Second operand 7 states. [2018-11-23 06:56:52,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 06:56:52,991 INFO L93 Difference]: Finished difference Result 428 states and 1255 transitions. [2018-11-23 06:56:52,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 06:56:52,992 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-23 06:56:52,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 06:56:52,992 INFO L225 Difference]: With dead ends: 428 [2018-11-23 06:56:52,992 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 06:56:52,992 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-23 06:56:52,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 06:56:52,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 06:56:52,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 06:56:52,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 06:56:52,993 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-23 06:56:52,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 06:56:52,993 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 06:56:52,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 06:56:52,993 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 06:56:52,993 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 06:56:52,995 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-23 06:56:52,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:56:52 BasicIcfg [2018-11-23 06:56:52,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 06:56:52,996 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 06:56:52,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 06:56:52,997 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 06:56:52,997 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:56:51" (3/4) ... [2018-11-23 06:56:52,999 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 06:56:53,003 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-23 06:56:53,003 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-23 06:56:53,003 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-23 06:56:53,006 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-23 06:56:53,007 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 06:56:53,036 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cf944a77-da1f-4bd4-b795-e9d1576efe92/bin-2019/utaipan/witness.graphml [2018-11-23 06:56:53,036 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 06:56:53,037 INFO L168 Benchmark]: Toolchain (without parser) took 2078.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 956.5 MB in the beginning and 1.1 GB in the end (delta: -148.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:56:53,038 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:56:53,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 956.5 MB in the beginning and 1.1 GB in the end (delta: -164.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-23 06:56:53,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.42 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 06:56:53,039 INFO L168 Benchmark]: Boogie Preprocessor took 13.95 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 06:56:53,039 INFO L168 Benchmark]: RCFGBuilder took 219.35 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-11-23 06:56:53,039 INFO L168 Benchmark]: TraceAbstraction took 1408.59 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: -11.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 06:56:53,040 INFO L168 Benchmark]: Witness Printer took 39.64 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 06:56:53,041 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 369.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 956.5 MB in the beginning and 1.1 GB in the end (delta: -164.0 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.95 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 219.35 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1408.59 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: -11.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 39.64 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. * 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 7 procedures, 71 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 351 SDtfs, 420 SDslu, 949 SDs, 0 SdLazy, 110 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 14398 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...