./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe028_pso.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_638dcaf7-9291-42e2-b2fd-7d8cbf51ef02/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_638dcaf7-9291-42e2-b2fd-7d8cbf51ef02/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_638dcaf7-9291-42e2-b2fd-7d8cbf51ef02/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_638dcaf7-9291-42e2-b2fd-7d8cbf51ef02/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe028_pso.opt_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_638dcaf7-9291-42e2-b2fd-7d8cbf51ef02/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_638dcaf7-9291-42e2-b2fd-7d8cbf51ef02/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 7ea47661dfc5bb86d1a198a9a36fd3d811fa1131 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 07:38:36,357 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:38:36,359 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:38:36,368 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:38:36,368 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:38:36,369 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:38:36,370 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:38:36,371 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:38:36,373 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:38:36,373 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:38:36,374 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:38:36,374 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:38:36,375 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:38:36,376 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:38:36,377 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:38:36,377 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:38:36,378 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:38:36,379 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:38:36,381 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:38:36,382 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:38:36,383 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:38:36,383 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:38:36,385 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:38:36,385 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:38:36,386 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:38:36,387 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:38:36,387 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:38:36,388 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:38:36,389 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:38:36,389 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:38:36,390 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:38:36,390 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:38:36,390 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:38:36,391 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:38:36,392 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:38:36,393 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:38:36,393 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_638dcaf7-9291-42e2-b2fd-7d8cbf51ef02/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 07:38:36,404 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:38:36,404 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:38:36,405 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 07:38:36,405 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 07:38:36,405 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 07:38:36,405 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 07:38:36,405 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 07:38:36,406 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 07:38:36,406 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 07:38:36,406 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 07:38:36,406 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 07:38:36,406 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 07:38:36,406 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 07:38:36,407 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:38:36,407 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 07:38:36,407 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 07:38:36,407 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 07:38:36,407 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:38:36,408 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 07:38:36,408 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 07:38:36,408 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 07:38:36,410 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 07:38:36,410 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:38:36,410 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:38:36,410 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 07:38:36,410 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:38:36,411 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:38:36,411 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 07:38:36,411 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 07:38:36,411 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:38:36,411 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:38:36,411 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 07:38:36,411 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 07:38:36,412 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 07:38:36,412 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 07:38:36,412 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 07:38:36,412 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 07:38:36,412 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_638dcaf7-9291-42e2-b2fd-7d8cbf51ef02/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 -> 7ea47661dfc5bb86d1a198a9a36fd3d811fa1131 [2018-11-23 07:38:36,440 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:38:36,451 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:38:36,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:38:36,456 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:38:36,456 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:38:36,457 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_638dcaf7-9291-42e2-b2fd-7d8cbf51ef02/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe028_pso.opt_true-unreach-call.i [2018-11-23 07:38:36,498 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_638dcaf7-9291-42e2-b2fd-7d8cbf51ef02/bin-2019/utaipan/data/0a3f71acf/31b40a4d2c26449e9dddded4aa44c803/FLAG9ccb81b69 [2018-11-23 07:38:36,896 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:38:36,896 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_638dcaf7-9291-42e2-b2fd-7d8cbf51ef02/sv-benchmarks/c/pthread-wmm/safe028_pso.opt_true-unreach-call.i [2018-11-23 07:38:36,905 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_638dcaf7-9291-42e2-b2fd-7d8cbf51ef02/bin-2019/utaipan/data/0a3f71acf/31b40a4d2c26449e9dddded4aa44c803/FLAG9ccb81b69 [2018-11-23 07:38:37,285 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_638dcaf7-9291-42e2-b2fd-7d8cbf51ef02/bin-2019/utaipan/data/0a3f71acf/31b40a4d2c26449e9dddded4aa44c803 [2018-11-23 07:38:37,287 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:38:37,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:38:37,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:38:37,289 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:38:37,291 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:38:37,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:38:37" (1/1) ... [2018-11-23 07:38:37,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28603259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:38:37, skipping insertion in model container [2018-11-23 07:38:37,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:38:37" (1/1) ... [2018-11-23 07:38:37,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:38:37,335 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:38:37,553 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:38:37,560 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:38:37,640 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:38:37,680 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:38:37,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:38:37 WrapperNode [2018-11-23 07:38:37,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:38:37,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:38:37,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:38:37,681 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:38:37,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:38:37" (1/1) ... [2018-11-23 07:38:37,696 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:38:37" (1/1) ... [2018-11-23 07:38:37,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:38:37,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:38:37,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:38:37,709 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:38:37,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:38:37" (1/1) ... [2018-11-23 07:38:37,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:38:37" (1/1) ... [2018-11-23 07:38:37,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:38:37" (1/1) ... [2018-11-23 07:38:37,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:38:37" (1/1) ... [2018-11-23 07:38:37,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:38:37" (1/1) ... [2018-11-23 07:38:37,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:38:37" (1/1) ... [2018-11-23 07:38:37,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:38:37" (1/1) ... [2018-11-23 07:38:37,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:38:37,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:38:37,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:38:37,725 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:38:37,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:38:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_638dcaf7-9291-42e2-b2fd-7d8cbf51ef02/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 07:38:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 07:38:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 07:38:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-23 07:38:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 07:38:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-23 07:38:37,763 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-23 07:38:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-23 07:38:37,763 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-23 07:38:37,763 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-23 07:38:37,764 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-23 07:38:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-23 07:38:37,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:38:37,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:38:37,764 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 07:38:37,945 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:38:37,946 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 07:38:37,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:38:37 BoogieIcfgContainer [2018-11-23 07:38:37,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:38:37,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 07:38:37,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 07:38:37,949 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 07:38:37,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:38:37" (1/3) ... [2018-11-23 07:38:37,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a94f15e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:38:37, skipping insertion in model container [2018-11-23 07:38:37,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:38:37" (2/3) ... [2018-11-23 07:38:37,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a94f15e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:38:37, skipping insertion in model container [2018-11-23 07:38:37,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:38:37" (3/3) ... [2018-11-23 07:38:37,951 INFO L112 eAbstractionObserver]: Analyzing ICFG safe028_pso.opt_true-unreach-call.i [2018-11-23 07:38:37,976 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,976 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,976 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,976 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,977 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,977 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,978 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,978 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,978 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,978 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,978 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,978 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,978 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,979 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,979 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,979 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,979 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,979 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,979 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,980 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,980 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,984 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,984 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,984 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,984 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 07:38:37,992 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 07:38:37,992 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 07:38:37,997 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 07:38:38,007 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 07:38:38,027 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 07:38:38,027 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 07:38:38,027 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 07:38:38,027 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:38:38,028 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:38:38,028 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 07:38:38,028 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:38:38,028 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 07:38:38,035 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2018-11-23 07:38:38,115 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2018-11-23 07:38:38,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2018-11-23 07:38:38,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-23 07:38:38,132 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:38:38,133 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 07:38:38,135 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:38:38,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:38:38,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1744735806, now seen corresponding path program 1 times [2018-11-23 07:38:38,142 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:38:38,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:38:38,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:38:38,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:38:38,192 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:38:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:38:38,345 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 07:38:38,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:38:38,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 07:38:38,347 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:38:38,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 07:38:38,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 07:38:38,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 07:38:38,360 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2018-11-23 07:38:38,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:38:38,441 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2018-11-23 07:38:38,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 07:38:38,443 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-23 07:38:38,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:38:38,464 INFO L225 Difference]: With dead ends: 2493 [2018-11-23 07:38:38,464 INFO L226 Difference]: Without dead ends: 1128 [2018-11-23 07:38:38,466 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 07:38:38,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2018-11-23 07:38:38,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2018-11-23 07:38:38,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2018-11-23 07:38:38,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2018-11-23 07:38:38,544 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2018-11-23 07:38:38,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:38:38,544 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2018-11-23 07:38:38,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 07:38:38,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2018-11-23 07:38:38,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-23 07:38:38,547 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:38:38,547 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 07:38:38,548 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:38:38,548 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:38:38,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1565456128, now seen corresponding path program 1 times [2018-11-23 07:38:38,548 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:38:38,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:38:38,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:38:38,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:38:38,553 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:38:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:38:38,635 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 07:38:38,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:38:38,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 07:38:38,635 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:38:38,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 07:38:38,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 07:38:38,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 07:38:38,638 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2018-11-23 07:38:38,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:38:38,699 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2018-11-23 07:38:38,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 07:38:38,700 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-23 07:38:38,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:38:38,706 INFO L225 Difference]: With dead ends: 1168 [2018-11-23 07:38:38,707 INFO L226 Difference]: Without dead ends: 1044 [2018-11-23 07:38:38,707 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 07:38:38,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2018-11-23 07:38:38,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2018-11-23 07:38:38,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2018-11-23 07:38:38,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2018-11-23 07:38:38,740 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2018-11-23 07:38:38,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:38:38,740 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2018-11-23 07:38:38,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 07:38:38,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2018-11-23 07:38:38,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-23 07:38:38,743 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:38:38,743 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 07:38:38,743 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:38:38,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:38:38,744 INFO L82 PathProgramCache]: Analyzing trace with hash 735186840, now seen corresponding path program 1 times [2018-11-23 07:38:38,744 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:38:38,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:38:38,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:38:38,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:38:38,748 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:38:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:38:38,839 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 07:38:38,839 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:38:38,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 07:38:38,839 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:38:38,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 07:38:38,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 07:38:38,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 07:38:38,840 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2018-11-23 07:38:38,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:38:38,894 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2018-11-23 07:38:38,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 07:38:38,894 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-23 07:38:38,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:38:38,897 INFO L225 Difference]: With dead ends: 820 [2018-11-23 07:38:38,897 INFO L226 Difference]: Without dead ends: 708 [2018-11-23 07:38:38,897 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 07:38:38,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2018-11-23 07:38:38,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2018-11-23 07:38:38,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-11-23 07:38:38,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2018-11-23 07:38:38,911 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2018-11-23 07:38:38,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:38:38,911 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2018-11-23 07:38:38,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 07:38:38,911 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2018-11-23 07:38:38,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 07:38:38,913 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:38:38,913 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 07:38:38,914 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:38:38,914 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:38:38,914 INFO L82 PathProgramCache]: Analyzing trace with hash 2064944776, now seen corresponding path program 1 times [2018-11-23 07:38:38,914 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:38:38,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:38:38,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:38:38,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:38:38,917 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:38:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:38:39,012 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 07:38:39,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:38:39,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 07:38:39,012 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:38:39,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 07:38:39,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 07:38:39,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:38:39,013 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 7 states. [2018-11-23 07:38:39,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:38:39,084 INFO L93 Difference]: Finished difference Result 1108 states and 3291 transitions. [2018-11-23 07:38:39,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 07:38:39,085 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-23 07:38:39,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:38:39,087 INFO L225 Difference]: With dead ends: 1108 [2018-11-23 07:38:39,087 INFO L226 Difference]: Without dead ends: 592 [2018-11-23 07:38:39,088 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-23 07:38:39,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2018-11-23 07:38:39,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2018-11-23 07:38:39,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2018-11-23 07:38:39,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 1755 transitions. [2018-11-23 07:38:39,099 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 1755 transitions. Word has length 33 [2018-11-23 07:38:39,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:38:39,100 INFO L480 AbstractCegarLoop]: Abstraction has 592 states and 1755 transitions. [2018-11-23 07:38:39,100 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 07:38:39,100 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 1755 transitions. [2018-11-23 07:38:39,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 07:38:39,101 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:38:39,101 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 07:38:39,102 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:38:39,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:38:39,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1298615966, now seen corresponding path program 2 times [2018-11-23 07:38:39,102 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:38:39,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:38:39,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:38:39,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:38:39,105 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:38:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:38:39,183 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 07:38:39,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:38:39,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 07:38:39,184 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:38:39,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 07:38:39,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 07:38:39,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:38:39,185 INFO L87 Difference]: Start difference. First operand 592 states and 1755 transitions. Second operand 7 states. [2018-11-23 07:38:39,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:38:39,264 INFO L93 Difference]: Finished difference Result 976 states and 2939 transitions. [2018-11-23 07:38:39,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 07:38:39,264 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-23 07:38:39,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:38:39,266 INFO L225 Difference]: With dead ends: 976 [2018-11-23 07:38:39,266 INFO L226 Difference]: Without dead ends: 556 [2018-11-23 07:38:39,267 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-23 07:38:39,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2018-11-23 07:38:39,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2018-11-23 07:38:39,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-11-23 07:38:39,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1671 transitions. [2018-11-23 07:38:39,279 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1671 transitions. Word has length 33 [2018-11-23 07:38:39,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:38:39,279 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 1671 transitions. [2018-11-23 07:38:39,279 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 07:38:39,279 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1671 transitions. [2018-11-23 07:38:39,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 07:38:39,281 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:38:39,281 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 07:38:39,281 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:38:39,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:38:39,281 INFO L82 PathProgramCache]: Analyzing trace with hash -114771302, now seen corresponding path program 3 times [2018-11-23 07:38:39,282 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:38:39,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:38:39,284 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:38:39,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:38:39,284 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:38:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:38:39,368 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 07:38:39,369 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:38:39,369 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 07:38:39,369 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 07:38:39,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 07:38:39,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 07:38:39,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 07:38:39,370 INFO L87 Difference]: Start difference. First operand 556 states and 1671 transitions. Second operand 8 states. [2018-11-23 07:38:39,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:38:39,497 INFO L93 Difference]: Finished difference Result 428 states and 1255 transitions. [2018-11-23 07:38:39,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 07:38:39,498 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2018-11-23 07:38:39,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:38:39,498 INFO L225 Difference]: With dead ends: 428 [2018-11-23 07:38:39,498 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 07:38:39,498 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-11-23 07:38:39,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 07:38:39,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 07:38:39,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 07:38:39,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 07:38:39,499 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-23 07:38:39,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:38:39,500 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:38:39,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 07:38:39,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 07:38:39,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 07:38:39,503 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-23 07:38:39,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 07:38:39 BasicIcfg [2018-11-23 07:38:39,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 07:38:39,504 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 07:38:39,505 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 07:38:39,505 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 07:38:39,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:38:37" (3/4) ... [2018-11-23 07:38:39,508 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 07:38:39,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-23 07:38:39,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-23 07:38:39,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-23 07:38:39,518 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-23 07:38:39,518 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 07:38:39,552 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_638dcaf7-9291-42e2-b2fd-7d8cbf51ef02/bin-2019/utaipan/witness.graphml [2018-11-23 07:38:39,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 07:38:39,553 INFO L168 Benchmark]: Toolchain (without parser) took 2265.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 955.4 MB in the beginning and 855.5 MB in the end (delta: 99.9 MB). Peak memory consumption was 246.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:38:39,555 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-11-23 07:38:39,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. [2018-11-23 07:38:39,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.51 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 07:38:39,557 INFO L168 Benchmark]: Boogie Preprocessor took 15.60 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 07:38:39,557 INFO L168 Benchmark]: RCFGBuilder took 221.78 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-11-23 07:38:39,557 INFO L168 Benchmark]: TraceAbstraction took 1557.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 858.8 MB in the end (delta: 235.7 MB). Peak memory consumption was 235.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:38:39,558 INFO L168 Benchmark]: Witness Printer took 48.19 ms. Allocated memory is still 1.2 GB. Free memory was 858.8 MB in the beginning and 855.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 07:38:39,560 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 392.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.51 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.60 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 221.78 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1557.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 858.8 MB in the end (delta: 235.7 MB). Peak memory consumption was 235.7 MB. Max. memory is 11.5 GB. * Witness Printer took 48.19 ms. Allocated memory is still 1.2 GB. Free memory was 858.8 MB in the beginning and 855.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 71 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 356 SDtfs, 469 SDslu, 961 SDs, 0 SdLazy, 115 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 44 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, 0.4s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 15134 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...