./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe037_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e54ce774-3a62-4224-b695-95cc4b4b4381/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e54ce774-3a62-4224-b695-95cc4b4b4381/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e54ce774-3a62-4224-b695-95cc4b4b4381/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e54ce774-3a62-4224-b695-95cc4b4b4381/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe037_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e54ce774-3a62-4224-b695-95cc4b4b4381/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e54ce774-3a62-4224-b695-95cc4b4b4381/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 64f580e0ffd8889d40f9b765cad301a5a3dbfae4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 13:05:08,286 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:05:08,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:05:08,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:05:08,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:05:08,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:05:08,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:05:08,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:05:08,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:05:08,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:05:08,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:05:08,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:05:08,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:05:08,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:05:08,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:05:08,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:05:08,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:05:08,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:05:08,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:05:08,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:05:08,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:05:08,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:05:08,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:05:08,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:05:08,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:05:08,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:05:08,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:05:08,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:05:08,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:05:08,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:05:08,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:05:08,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:05:08,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:05:08,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:05:08,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:05:08,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:05:08,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:05:08,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:05:08,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:05:08,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:05:08,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:05:08,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e54ce774-3a62-4224-b695-95cc4b4b4381/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 13:05:08,326 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:05:08,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:05:08,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:05:08,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:05:08,328 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:05:08,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:05:08,328 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:05:08,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:05:08,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:05:08,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:05:08,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:05:08,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:05:08,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:05:08,329 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:05:08,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:05:08,329 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:05:08,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:05:08,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:05:08,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:05:08,330 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:05:08,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:05:08,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:05:08,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:05:08,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:05:08,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:05:08,330 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:05:08,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:05:08,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:05:08,331 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:05:08,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_e54ce774-3a62-4224-b695-95cc4b4b4381/bin/uautomizer 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 -> Automizer 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 -> 64f580e0ffd8889d40f9b765cad301a5a3dbfae4 [2019-12-07 13:05:08,428 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:05:08,437 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:05:08,440 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:05:08,441 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:05:08,441 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:05:08,441 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e54ce774-3a62-4224-b695-95cc4b4b4381/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe037_tso.oepc.i [2019-12-07 13:05:08,481 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e54ce774-3a62-4224-b695-95cc4b4b4381/bin/uautomizer/data/0c0b39be6/6bd42c961da64827b47d70846b29dc8b/FLAG579076d86 [2019-12-07 13:05:08,857 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:05:08,858 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e54ce774-3a62-4224-b695-95cc4b4b4381/sv-benchmarks/c/pthread-wmm/safe037_tso.oepc.i [2019-12-07 13:05:08,870 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e54ce774-3a62-4224-b695-95cc4b4b4381/bin/uautomizer/data/0c0b39be6/6bd42c961da64827b47d70846b29dc8b/FLAG579076d86 [2019-12-07 13:05:08,879 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e54ce774-3a62-4224-b695-95cc4b4b4381/bin/uautomizer/data/0c0b39be6/6bd42c961da64827b47d70846b29dc8b [2019-12-07 13:05:08,881 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:05:08,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:05:08,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:05:08,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:05:08,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:05:08,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:05:08" (1/1) ... [2019-12-07 13:05:08,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61040381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:05:08, skipping insertion in model container [2019-12-07 13:05:08,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:05:08" (1/1) ... [2019-12-07 13:05:08,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:05:08,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:05:09,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:05:09,172 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:05:09,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:05:09,246 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:05:09,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:05:09 WrapperNode [2019-12-07 13:05:09,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:05:09,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:05:09,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:05:09,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:05:09,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:05:09" (1/1) ... [2019-12-07 13:05:09,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:05:09" (1/1) ... [2019-12-07 13:05:09,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:05:09,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:05:09,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:05:09,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:05:09,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:05:09" (1/1) ... [2019-12-07 13:05:09,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:05:09" (1/1) ... [2019-12-07 13:05:09,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:05:09" (1/1) ... [2019-12-07 13:05:09,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:05:09" (1/1) ... [2019-12-07 13:05:09,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:05:09" (1/1) ... [2019-12-07 13:05:09,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:05:09" (1/1) ... [2019-12-07 13:05:09,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:05:09" (1/1) ... [2019-12-07 13:05:09,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:05:09,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:05:09,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:05:09,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:05:09,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:05:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e54ce774-3a62-4224-b695-95cc4b4b4381/bin/uautomizer/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 [2019-12-07 13:05:09,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 13:05:09,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-07 13:05:09,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 13:05:09,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 13:05:09,334 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-07 13:05:09,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-07 13:05:09,334 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-07 13:05:09,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-07 13:05:09,334 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-07 13:05:09,334 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-07 13:05:09,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-07 13:05:09,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:05:09,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:05:09,335 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-07 13:05:09,508 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:05:09,508 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 13:05:09,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:05:09 BoogieIcfgContainer [2019-12-07 13:05:09,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:05:09,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:05:09,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:05:09,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:05:09,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:05:08" (1/3) ... [2019-12-07 13:05:09,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d76dc91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:05:09, skipping insertion in model container [2019-12-07 13:05:09,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:05:09" (2/3) ... [2019-12-07 13:05:09,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d76dc91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:05:09, skipping insertion in model container [2019-12-07 13:05:09,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:05:09" (3/3) ... [2019-12-07 13:05:09,514 INFO L109 eAbstractionObserver]: Analyzing ICFG safe037_tso.oepc.i [2019-12-07 13:05:09,520 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-07 13:05:09,520 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:05:09,524 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:05:09,525 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-07 13:05:09,541 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,542 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,542 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,542 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,542 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,542 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,542 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,542 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,543 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,543 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,543 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,543 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,543 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,543 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,543 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,544 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,544 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,544 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 13:05:09,558 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-07 13:05:09,570 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:05:09,570 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:05:09,570 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:05:09,570 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:05:09,570 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:05:09,570 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:05:09,570 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:05:09,570 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:05:09,578 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-07 13:05:09,579 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-07 13:05:09,604 INFO L134 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-07 13:05:09,605 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 13:05:09,609 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/59 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-07 13:05:09,611 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-07 13:05:09,620 INFO L134 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-07 13:05:09,621 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 13:05:09,621 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/59 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-07 13:05:09,622 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-07 13:05:09,623 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-07 13:05:10,355 INFO L206 etLargeBlockEncoding]: Checked pairs total: 425 [2019-12-07 13:05:10,356 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-07 13:05:10,358 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-07 13:05:10,366 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-07 13:05:10,368 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-07 13:05:10,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 13:05:10,372 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:05:10,372 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:05:10,373 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:05:10,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:05:10,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1086085239, now seen corresponding path program 1 times [2019-12-07 13:05:10,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:05:10,382 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065594703] [2019-12-07 13:05:10,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:05:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:05:10,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:05:10,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065594703] [2019-12-07 13:05:10,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:05:10,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:05:10,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635973478] [2019-12-07 13:05:10,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:05:10,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:05:10,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:05:10,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:05:10,568 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 4 states. [2019-12-07 13:05:10,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:05:10,611 INFO L93 Difference]: Finished difference Result 58 states and 113 transitions. [2019-12-07 13:05:10,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:05:10,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-07 13:05:10,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:05:10,620 INFO L225 Difference]: With dead ends: 58 [2019-12-07 13:05:10,620 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 13:05:10,621 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:05:10,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 13:05:10,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-07 13:05:10,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 13:05:10,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 68 transitions. [2019-12-07 13:05:10,645 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 68 transitions. Word has length 8 [2019-12-07 13:05:10,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:05:10,645 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 68 transitions. [2019-12-07 13:05:10,645 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:05:10,645 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2019-12-07 13:05:10,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 13:05:10,646 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:05:10,646 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:05:10,646 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:05:10,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:05:10,646 INFO L82 PathProgramCache]: Analyzing trace with hash -744608244, now seen corresponding path program 1 times [2019-12-07 13:05:10,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:05:10,646 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952110663] [2019-12-07 13:05:10,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:05:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:05:10,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:05:10,716 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952110663] [2019-12-07 13:05:10,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:05:10,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:05:10,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386076103] [2019-12-07 13:05:10,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 13:05:10,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:05:10,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:05:10,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:05:10,718 INFO L87 Difference]: Start difference. First operand 36 states and 68 transitions. Second operand 5 states. [2019-12-07 13:05:10,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:05:10,755 INFO L93 Difference]: Finished difference Result 37 states and 62 transitions. [2019-12-07 13:05:10,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 13:05:10,755 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-12-07 13:05:10,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:05:10,756 INFO L225 Difference]: With dead ends: 37 [2019-12-07 13:05:10,756 INFO L226 Difference]: Without dead ends: 30 [2019-12-07 13:05:10,757 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-07 13:05:10,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-07 13:05:10,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-12-07 13:05:10,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 13:05:10,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 50 transitions. [2019-12-07 13:05:10,760 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 50 transitions. Word has length 9 [2019-12-07 13:05:10,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:05:10,761 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 50 transitions. [2019-12-07 13:05:10,761 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 13:05:10,761 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2019-12-07 13:05:10,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 13:05:10,761 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:05:10,762 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:05:10,762 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:05:10,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:05:10,762 INFO L82 PathProgramCache]: Analyzing trace with hash -1607968112, now seen corresponding path program 1 times [2019-12-07 13:05:10,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:05:10,762 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343166309] [2019-12-07 13:05:10,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:05:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:05:10,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:05:10,826 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343166309] [2019-12-07 13:05:10,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:05:10,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:05:10,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204651224] [2019-12-07 13:05:10,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:05:10,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:05:10,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:05:10,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:05:10,827 INFO L87 Difference]: Start difference. First operand 30 states and 50 transitions. Second operand 4 states. [2019-12-07 13:05:10,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:05:10,839 INFO L93 Difference]: Finished difference Result 35 states and 54 transitions. [2019-12-07 13:05:10,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:05:10,839 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-07 13:05:10,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:05:10,840 INFO L225 Difference]: With dead ends: 35 [2019-12-07 13:05:10,840 INFO L226 Difference]: Without dead ends: 31 [2019-12-07 13:05:10,840 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:05:10,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-07 13:05:10,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2019-12-07 13:05:10,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 13:05:10,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 47 transitions. [2019-12-07 13:05:10,843 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 47 transitions. Word has length 10 [2019-12-07 13:05:10,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:05:10,843 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 47 transitions. [2019-12-07 13:05:10,843 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:05:10,844 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2019-12-07 13:05:10,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 13:05:10,844 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:05:10,844 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:05:10,844 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:05:10,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:05:10,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1607961385, now seen corresponding path program 1 times [2019-12-07 13:05:10,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:05:10,845 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646559446] [2019-12-07 13:05:10,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:05:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:05:10,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:05:10,896 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646559446] [2019-12-07 13:05:10,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:05:10,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 13:05:10,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131936728] [2019-12-07 13:05:10,897 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 13:05:10,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:05:10,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 13:05:10,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-07 13:05:10,897 INFO L87 Difference]: Start difference. First operand 30 states and 47 transitions. Second operand 6 states. [2019-12-07 13:05:10,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:05:10,940 INFO L93 Difference]: Finished difference Result 28 states and 41 transitions. [2019-12-07 13:05:10,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 13:05:10,941 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-07 13:05:10,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:05:10,941 INFO L225 Difference]: With dead ends: 28 [2019-12-07 13:05:10,941 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 13:05:10,942 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-07 13:05:10,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 13:05:10,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-07 13:05:10,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 13:05:10,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-07 13:05:10,944 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-12-07 13:05:10,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:05:10,944 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-07 13:05:10,944 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 13:05:10,945 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-07 13:05:10,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 13:05:10,945 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:05:10,945 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:05:10,945 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:05:10,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:05:10,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1627425577, now seen corresponding path program 1 times [2019-12-07 13:05:10,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:05:10,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272889265] [2019-12-07 13:05:10,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:05:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:05:10,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:05:10,996 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272889265] [2019-12-07 13:05:10,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:05:10,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:05:10,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988128120] [2019-12-07 13:05:10,997 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:05:10,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:05:10,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:05:10,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:05:10,997 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-12-07 13:05:11,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:05:11,013 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-12-07 13:05:11,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:05:11,014 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 13:05:11,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:05:11,014 INFO L225 Difference]: With dead ends: 19 [2019-12-07 13:05:11,014 INFO L226 Difference]: Without dead ends: 16 [2019-12-07 13:05:11,014 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:05:11,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-07 13:05:11,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-12-07 13:05:11,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 13:05:11,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-07 13:05:11,017 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2019-12-07 13:05:11,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:05:11,017 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-07 13:05:11,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:05:11,017 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-07 13:05:11,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 13:05:11,017 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:05:11,018 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:05:11,018 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:05:11,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:05:11,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1627540897, now seen corresponding path program 2 times [2019-12-07 13:05:11,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:05:11,018 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687147335] [2019-12-07 13:05:11,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:05:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:05:11,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:05:11,059 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687147335] [2019-12-07 13:05:11,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:05:11,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:05:11,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954732718] [2019-12-07 13:05:11,060 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:05:11,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:05:11,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:05:11,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:05:11,060 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-12-07 13:05:11,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:05:11,075 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-07 13:05:11,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 13:05:11,075 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 13:05:11,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:05:11,075 INFO L225 Difference]: With dead ends: 14 [2019-12-07 13:05:11,076 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 13:05:11,076 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:05:11,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 13:05:11,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 13:05:11,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 13:05:11,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 13:05:11,076 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-07 13:05:11,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:05:11,077 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 13:05:11,077 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:05:11,077 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 13:05:11,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 13:05:11,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:05:11 BasicIcfg [2019-12-07 13:05:11,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:05:11,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:05:11,080 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:05:11,080 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:05:11,080 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:05:09" (3/4) ... [2019-12-07 13:05:11,082 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 13:05:11,086 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-12-07 13:05:11,087 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-12-07 13:05:11,087 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-12-07 13:05:11,090 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-12-07 13:05:11,091 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 13:05:11,091 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 13:05:11,121 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e54ce774-3a62-4224-b695-95cc4b4b4381/bin/uautomizer/witness.graphml [2019-12-07 13:05:11,121 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:05:11,123 INFO L168 Benchmark]: Toolchain (without parser) took 2240.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 937.1 MB in the beginning and 1.0 GB in the end (delta: -95.3 MB). Peak memory consumption was 3.8 MB. Max. memory is 11.5 GB. [2019-12-07 13:05:11,124 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:05:11,124 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -132.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:05:11,125 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.35 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:05:11,125 INFO L168 Benchmark]: Boogie Preprocessor took 16.23 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:05:11,125 INFO L168 Benchmark]: RCFGBuilder took 216.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:05:11,126 INFO L168 Benchmark]: TraceAbstraction took 1569.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-12-07 13:05:11,126 INFO L168 Benchmark]: Witness Printer took 41.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-12-07 13:05:11,128 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 364.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -132.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.35 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.23 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 216.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1569.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Witness Printer took 41.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.7s, 64 ProgramPointsBefore, 22 ProgramPointsAfterwards, 55 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 236 VarBasedMoverChecksPositive, 9 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 10 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 425 CheckedPairsTotal, 45 TotalNumberOfCompositions - 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 4 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 68 SDslu, 76 SDs, 0 SdLazy, 63 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1721 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...