./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe002_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe002_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 b20f0362d47fb0eca5e2e50905980195c4017e92 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 18:25:35,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:25:35,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:25:35,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:25:35,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:25:35,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:25:35,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:25:35,240 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:25:35,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:25:35,246 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:25:35,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:25:35,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:25:35,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:25:35,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:25:35,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:25:35,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:25:35,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:25:35,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:25:35,258 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:25:35,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:25:35,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:25:35,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:25:35,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:25:35,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:25:35,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:25:35,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:25:35,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:25:35,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:25:35,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:25:35,270 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:25:35,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:25:35,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:25:35,272 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:25:35,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:25:35,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:25:35,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:25:35,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:25:35,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:25:35,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:25:35,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:25:35,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:25:35,278 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:25:35,293 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:25:35,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:25:35,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:25:35,295 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:25:35,295 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:25:35,296 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:25:35,296 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:25:35,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:25:35,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:25:35,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:25:35,297 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:25:35,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:25:35,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:25:35,298 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:25:35,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:25:35,298 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:25:35,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:25:35,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:25:35,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:25:35,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:25:35,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:25:35,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:25:35,301 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:25:35,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:25:35,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:25:35,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:25:35,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:25:35,302 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:25:35,302 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:25:35,303 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> b20f0362d47fb0eca5e2e50905980195c4017e92 [2019-11-28 18:25:35,636 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:25:35,651 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:25:35,654 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:25:35,656 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:25:35,657 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:25:35,658 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe002_tso.oepc.i [2019-11-28 18:25:35,723 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4300276f/5d3a03868fda418091112e7877a53b35/FLAG0a6f575e5 [2019-11-28 18:25:36,281 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:25:36,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe002_tso.oepc.i [2019-11-28 18:25:36,305 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4300276f/5d3a03868fda418091112e7877a53b35/FLAG0a6f575e5 [2019-11-28 18:25:36,546 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4300276f/5d3a03868fda418091112e7877a53b35 [2019-11-28 18:25:36,550 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:25:36,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:25:36,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:25:36,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:25:36,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:25:36,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:25:36" (1/1) ... [2019-11-28 18:25:36,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b54b50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:36, skipping insertion in model container [2019-11-28 18:25:36,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:25:36" (1/1) ... [2019-11-28 18:25:36,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:25:36,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:25:37,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:25:37,183 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:25:37,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:25:37,344 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:25:37,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:37 WrapperNode [2019-11-28 18:25:37,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:25:37,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:25:37,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:25:37,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:25:37,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:37" (1/1) ... [2019-11-28 18:25:37,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:37" (1/1) ... [2019-11-28 18:25:37,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:25:37,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:25:37,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:25:37,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:25:37,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:37" (1/1) ... [2019-11-28 18:25:37,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:37" (1/1) ... [2019-11-28 18:25:37,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:37" (1/1) ... [2019-11-28 18:25:37,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:37" (1/1) ... [2019-11-28 18:25:37,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:37" (1/1) ... [2019-11-28 18:25:37,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:37" (1/1) ... [2019-11-28 18:25:37,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:37" (1/1) ... [2019-11-28 18:25:37,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:25:37,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:25:37,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:25:37,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:25:37,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 18:25:37,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:25:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-28 18:25:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:25:37,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:25:37,511 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-28 18:25:37,511 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-28 18:25:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-28 18:25:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-28 18:25:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-28 18:25:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-28 18:25:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-28 18:25:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:25:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:25:37,515 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-28 18:25:37,886 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:25:37,886 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 18:25:37,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:25:37 BoogieIcfgContainer [2019-11-28 18:25:37,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:25:37,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:25:37,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:25:37,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:25:37,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:25:36" (1/3) ... [2019-11-28 18:25:37,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c31fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:25:37, skipping insertion in model container [2019-11-28 18:25:37,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:37" (2/3) ... [2019-11-28 18:25:37,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c31fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:25:37, skipping insertion in model container [2019-11-28 18:25:37,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:25:37" (3/3) ... [2019-11-28 18:25:37,898 INFO L109 eAbstractionObserver]: Analyzing ICFG safe002_tso.oepc.i [2019-11-28 18:25:37,908 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:25:37,909 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:25:37,917 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 18:25:37,918 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:25:37,948 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,948 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,949 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,949 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,949 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,950 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,950 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,950 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,951 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,951 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,951 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,952 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,952 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,953 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,953 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,953 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,954 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,954 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:37,986 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 18:25:38,009 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:25:38,010 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:25:38,010 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:25:38,010 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:25:38,011 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:25:38,011 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:25:38,011 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:25:38,011 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:25:38,026 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-11-28 18:25:38,029 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-11-28 18:25:38,073 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-11-28 18:25:38,074 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:25:38,081 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:25:38,085 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-11-28 18:25:38,106 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-11-28 18:25:38,106 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:25:38,108 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:25:38,113 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-11-28 18:25:38,114 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:25:39,524 WARN L192 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2019-11-28 18:25:39,648 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-11-28 18:25:39,758 INFO L206 etLargeBlockEncoding]: Checked pairs total: 478 [2019-11-28 18:25:39,758 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-11-28 18:25:39,764 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-11-28 18:25:39,786 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-11-28 18:25:39,790 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-11-28 18:25:39,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 18:25:39,802 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:25:39,803 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:25:39,804 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:25:39,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:25:39,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1804038140, now seen corresponding path program 1 times [2019-11-28 18:25:39,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:25:39,829 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228165904] [2019-11-28 18:25:39,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:25:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:25:40,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:25:40,234 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228165904] [2019-11-28 18:25:40,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:25:40,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:25:40,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262726724] [2019-11-28 18:25:40,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:25:40,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:25:40,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:25:40,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:25:40,261 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 4 states. [2019-11-28 18:25:40,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:25:40,324 INFO L93 Difference]: Finished difference Result 58 states and 113 transitions. [2019-11-28 18:25:40,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:25:40,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 18:25:40,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:25:40,338 INFO L225 Difference]: With dead ends: 58 [2019-11-28 18:25:40,339 INFO L226 Difference]: Without dead ends: 36 [2019-11-28 18:25:40,340 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 [2019-11-28 18:25:40,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-28 18:25:40,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-28 18:25:40,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-28 18:25:40,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 68 transitions. [2019-11-28 18:25:40,380 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 68 transitions. Word has length 8 [2019-11-28 18:25:40,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:25:40,380 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 68 transitions. [2019-11-28 18:25:40,381 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:25:40,381 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2019-11-28 18:25:40,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 18:25:40,382 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:25:40,382 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:25:40,382 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:25:40,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:25:40,383 INFO L82 PathProgramCache]: Analyzing trace with hash 982750768, now seen corresponding path program 1 times [2019-11-28 18:25:40,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:25:40,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907151060] [2019-11-28 18:25:40,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:25:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:25:40,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:25:40,496 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907151060] [2019-11-28 18:25:40,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:25:40,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:25:40,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103172544] [2019-11-28 18:25:40,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:25:40,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:25:40,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:25:40,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:25:40,500 INFO L87 Difference]: Start difference. First operand 36 states and 68 transitions. Second operand 4 states. [2019-11-28 18:25:40,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:25:40,527 INFO L93 Difference]: Finished difference Result 44 states and 71 transitions. [2019-11-28 18:25:40,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:25:40,528 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-28 18:25:40,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:25:40,529 INFO L225 Difference]: With dead ends: 44 [2019-11-28 18:25:40,529 INFO L226 Difference]: Without dead ends: 40 [2019-11-28 18:25:40,530 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:25:40,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-28 18:25:40,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2019-11-28 18:25:40,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-11-28 18:25:40,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 63 transitions. [2019-11-28 18:25:40,538 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 63 transitions. Word has length 9 [2019-11-28 18:25:40,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:25:40,539 INFO L462 AbstractCegarLoop]: Abstraction has 39 states and 63 transitions. [2019-11-28 18:25:40,539 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:25:40,539 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 63 transitions. [2019-11-28 18:25:40,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:25:40,540 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:25:40,540 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:25:40,541 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:25:40,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:25:40,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1542655070, now seen corresponding path program 1 times [2019-11-28 18:25:40,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:25:40,542 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187455579] [2019-11-28 18:25:40,542 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:25:40,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:25:40,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:25:40,687 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187455579] [2019-11-28 18:25:40,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:25:40,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 18:25:40,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108354003] [2019-11-28 18:25:40,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 18:25:40,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:25:40,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 18:25:40,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:25:40,690 INFO L87 Difference]: Start difference. First operand 39 states and 63 transitions. Second operand 6 states. [2019-11-28 18:25:40,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:25:40,774 INFO L93 Difference]: Finished difference Result 37 states and 57 transitions. [2019-11-28 18:25:40,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 18:25:40,775 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-28 18:25:40,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:25:40,776 INFO L225 Difference]: With dead ends: 37 [2019-11-28 18:25:40,776 INFO L226 Difference]: Without dead ends: 27 [2019-11-28 18:25:40,776 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 [2019-11-28 18:25:40,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-28 18:25:40,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2019-11-28 18:25:40,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-28 18:25:40,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 35 transitions. [2019-11-28 18:25:40,782 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 35 transitions. Word has length 10 [2019-11-28 18:25:40,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:25:40,783 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 35 transitions. [2019-11-28 18:25:40,783 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 18:25:40,783 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2019-11-28 18:25:40,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:25:40,785 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:25:40,785 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:25:40,785 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:25:40,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:25:40,786 INFO L82 PathProgramCache]: Analyzing trace with hash -525836137, now seen corresponding path program 1 times [2019-11-28 18:25:40,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:25:40,787 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253189536] [2019-11-28 18:25:40,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:25:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:25:40,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:25:40,885 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253189536] [2019-11-28 18:25:40,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:25:40,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:25:40,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747381285] [2019-11-28 18:25:40,886 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:25:40,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:25:40,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:25:40,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:25:40,890 INFO L87 Difference]: Start difference. First operand 23 states and 35 transitions. Second operand 4 states. [2019-11-28 18:25:40,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:25:40,916 INFO L93 Difference]: Finished difference Result 28 states and 39 transitions. [2019-11-28 18:25:40,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:25:40,917 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:25:40,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:25:40,918 INFO L225 Difference]: With dead ends: 28 [2019-11-28 18:25:40,918 INFO L226 Difference]: Without dead ends: 18 [2019-11-28 18:25:40,919 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 [2019-11-28 18:25:40,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-28 18:25:40,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-28 18:25:40,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 18:25:40,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-11-28 18:25:40,923 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 11 [2019-11-28 18:25:40,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:25:40,923 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-28 18:25:40,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:25:40,924 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-11-28 18:25:40,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:25:40,926 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:25:40,926 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:25:40,926 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:25:40,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:25:40,927 INFO L82 PathProgramCache]: Analyzing trace with hash -577609367, now seen corresponding path program 2 times [2019-11-28 18:25:40,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:25:40,927 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758694222] [2019-11-28 18:25:40,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:25:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:25:41,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:25:41,061 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758694222] [2019-11-28 18:25:41,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:25:41,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 18:25:41,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782710521] [2019-11-28 18:25:41,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:25:41,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:25:41,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:25:41,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:25:41,063 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 5 states. [2019-11-28 18:25:41,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:25:41,101 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2019-11-28 18:25:41,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 18:25:41,102 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-28 18:25:41,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:25:41,102 INFO L225 Difference]: With dead ends: 23 [2019-11-28 18:25:41,102 INFO L226 Difference]: Without dead ends: 14 [2019-11-28 18:25:41,103 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:25:41,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-28 18:25:41,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-28 18:25:41,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-28 18:25:41,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-11-28 18:25:41,105 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2019-11-28 18:25:41,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:25:41,106 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-11-28 18:25:41,106 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:25:41,106 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-11-28 18:25:41,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:25:41,106 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:25:41,106 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:25:41,107 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:25:41,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:25:41,107 INFO L82 PathProgramCache]: Analyzing trace with hash -577580537, now seen corresponding path program 3 times [2019-11-28 18:25:41,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:25:41,108 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303366100] [2019-11-28 18:25:41,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:25:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:25:41,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:25:41,173 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303366100] [2019-11-28 18:25:41,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:25:41,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:25:41,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244122405] [2019-11-28 18:25:41,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:25:41,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:25:41,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:25:41,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:25:41,175 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 4 states. [2019-11-28 18:25:41,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:25:41,196 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-11-28 18:25:41,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:25:41,196 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:25:41,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:25:41,197 INFO L225 Difference]: With dead ends: 13 [2019-11-28 18:25:41,197 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:25:41,197 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 [2019-11-28 18:25:41,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:25:41,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:25:41,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:25:41,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:25:41,198 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-28 18:25:41,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:25:41,198 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:25:41,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:25:41,199 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:25:41,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:25:41,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:25:41 BasicIcfg [2019-11-28 18:25:41,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:25:41,203 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:25:41,203 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:25:41,204 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:25:41,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:25:37" (3/4) ... [2019-11-28 18:25:41,210 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:25:41,218 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-28 18:25:41,218 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-28 18:25:41,219 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-28 18:25:41,228 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-28 18:25:41,229 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:25:41,229 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:25:41,299 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:25:41,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:25:41,302 INFO L168 Benchmark]: Toolchain (without parser) took 4749.92 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 221.2 MB). Free memory was 948.3 MB in the beginning and 1.2 GB in the end (delta: -233.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:25:41,302 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:25:41,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -163.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 18:25:41,303 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.54 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. [2019-11-28 18:25:41,304 INFO L168 Benchmark]: Boogie Preprocessor took 29.37 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. [2019-11-28 18:25:41,305 INFO L168 Benchmark]: RCFGBuilder took 454.27 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: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-11-28 18:25:41,305 INFO L168 Benchmark]: TraceAbstraction took 3314.06 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 70.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -94.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:25:41,306 INFO L168 Benchmark]: Witness Printer took 96.55 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:25:41,309 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 792.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -163.9 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.37 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 454.27 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: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3314.06 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 70.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -94.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 96.55 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 30 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 232 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 478 CheckedPairsTotal, 47 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 3.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 58 SDtfs, 63 SDslu, 54 SDs, 0 SdLazy, 68 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s 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, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 2570 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...