./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe009_tso.opt.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/safe009_tso.opt.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 fb8104bcaa22269f5bd255be46e114449e1a0279 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 18:27:14,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:27:14,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:27:14,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:27:14,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:27:14,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:27:14,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:27:14,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:27:14,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:27:14,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:27:14,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:27:14,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:27:14,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:27:14,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:27:14,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:27:14,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:27:14,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:27:14,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:27:14,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:27:14,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:27:14,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:27:14,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:27:14,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:27:14,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:27:14,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:27:14,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:27:14,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:27:14,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:27:14,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:27:14,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:27:14,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:27:14,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:27:14,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:27:14,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:27:14,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:27:14,457 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:27:14,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:27:14,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:27:14,458 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:27:14,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:27:14,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:27:14,461 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:27:14,476 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:27:14,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:27:14,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:27:14,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:27:14,478 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:27:14,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:27:14,479 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:27:14,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:27:14,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:27:14,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:27:14,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:27:14,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:27:14,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:27:14,481 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:27:14,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:27:14,481 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:27:14,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:27:14,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:27:14,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:27:14,482 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:27:14,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:27:14,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:27:14,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:27:14,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:27:14,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:27:14,484 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:27:14,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:27:14,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:27:14,485 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:27:14,485 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 -> fb8104bcaa22269f5bd255be46e114449e1a0279 [2019-11-28 18:27:14,816 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:27:14,831 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:27:14,835 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:27:14,836 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:27:14,838 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:27:14,839 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe009_tso.opt.i [2019-11-28 18:27:14,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a269a03d7/ceb518897b47468d9281eb63b461edcb/FLAG00876871e [2019-11-28 18:27:15,426 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:27:15,427 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe009_tso.opt.i [2019-11-28 18:27:15,440 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a269a03d7/ceb518897b47468d9281eb63b461edcb/FLAG00876871e [2019-11-28 18:27:15,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a269a03d7/ceb518897b47468d9281eb63b461edcb [2019-11-28 18:27:15,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:27:15,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:27:15,746 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:27:15,746 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:27:15,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:27:15,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:27:15" (1/1) ... [2019-11-28 18:27:15,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57fa7dd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:15, skipping insertion in model container [2019-11-28 18:27:15,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:27:15" (1/1) ... [2019-11-28 18:27:15,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:27:15,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:27:16,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:27:16,288 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:27:16,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:27:16,431 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:27:16,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:16 WrapperNode [2019-11-28 18:27:16,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:27:16,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:27:16,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:27:16,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:27:16,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:16" (1/1) ... [2019-11-28 18:27:16,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:16" (1/1) ... [2019-11-28 18:27:16,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:27:16,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:27:16,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:27:16,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:27:16,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:16" (1/1) ... [2019-11-28 18:27:16,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:16" (1/1) ... [2019-11-28 18:27:16,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:16" (1/1) ... [2019-11-28 18:27:16,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:16" (1/1) ... [2019-11-28 18:27:16,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:16" (1/1) ... [2019-11-28 18:27:16,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:16" (1/1) ... [2019-11-28 18:27:16,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:16" (1/1) ... [2019-11-28 18:27:16,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:27:16,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:27:16,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:27:16,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:27:16,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:16" (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 18:27:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:27:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-28 18:27:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:27:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:27:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-28 18:27:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-28 18:27:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-28 18:27:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-28 18:27:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-28 18:27:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-28 18:27:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-28 18:27:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:27:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:27:16,578 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 18:27:16,921 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:27:16,922 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 18:27:16,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:27:16 BoogieIcfgContainer [2019-11-28 18:27:16,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:27:16,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:27:16,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:27:16,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:27:16,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:27:15" (1/3) ... [2019-11-28 18:27:16,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756fa428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:27:16, skipping insertion in model container [2019-11-28 18:27:16,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:16" (2/3) ... [2019-11-28 18:27:16,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756fa428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:27:16, skipping insertion in model container [2019-11-28 18:27:16,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:27:16" (3/3) ... [2019-11-28 18:27:16,931 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_tso.opt.i [2019-11-28 18:27:16,940 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:27:16,941 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:27:16,947 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 18:27:16,948 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:27:16,975 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,975 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,975 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,976 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,976 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,976 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,977 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,977 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,977 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,977 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,977 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,978 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,978 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,978 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,978 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,979 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,980 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,980 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:17,007 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 18:27:17,024 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:27:17,025 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:27:17,025 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:27:17,025 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:27:17,025 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:27:17,025 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:27:17,026 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:27:17,026 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:27:17,037 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-11-28 18:27:17,039 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-11-28 18:27:17,084 INFO L134 PetriNetUnfolder]: 1/50 cut-off events. [2019-11-28 18:27:17,084 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:27:17,093 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:27:17,097 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-11-28 18:27:17,117 INFO L134 PetriNetUnfolder]: 1/50 cut-off events. [2019-11-28 18:27:17,119 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:27:17,121 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:27:17,125 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-11-28 18:27:17,126 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:27:18,483 INFO L206 etLargeBlockEncoding]: Checked pairs total: 444 [2019-11-28 18:27:18,483 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-11-28 18:27:18,487 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-11-28 18:27:18,500 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-11-28 18:27:18,502 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-11-28 18:27:18,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 18:27:18,510 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:27:18,511 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:27:18,511 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:27:18,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:27:18,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1049428584, now seen corresponding path program 1 times [2019-11-28 18:27:18,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:27:18,527 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408178123] [2019-11-28 18:27:18,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:27:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:27:18,807 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 18:27:18,809 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408178123] [2019-11-28 18:27:18,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:27:18,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:27:18,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108834204] [2019-11-28 18:27:18,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:27:18,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:27:18,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:27:18,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:27:18,842 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 4 states. [2019-11-28 18:27:18,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:27:18,917 INFO L93 Difference]: Finished difference Result 51 states and 97 transitions. [2019-11-28 18:27:18,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:27:18,919 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 18:27:18,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:27:18,931 INFO L225 Difference]: With dead ends: 51 [2019-11-28 18:27:18,931 INFO L226 Difference]: Without dead ends: 36 [2019-11-28 18:27:18,933 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 18:27:18,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-28 18:27:18,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-28 18:27:18,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-28 18:27:18,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 68 transitions. [2019-11-28 18:27:18,968 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 68 transitions. Word has length 8 [2019-11-28 18:27:18,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:27:18,968 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 68 transitions. [2019-11-28 18:27:18,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:27:18,968 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2019-11-28 18:27:18,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 18:27:18,969 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:27:18,969 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:27:18,970 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:27:18,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:27:18,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1605762269, now seen corresponding path program 1 times [2019-11-28 18:27:18,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:27:18,971 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624449805] [2019-11-28 18:27:18,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:27:18,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:27:19,090 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 18:27:19,091 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624449805] [2019-11-28 18:27:19,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:27:19,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:27:19,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191767309] [2019-11-28 18:27:19,093 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:27:19,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:27:19,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:27:19,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:27:19,094 INFO L87 Difference]: Start difference. First operand 36 states and 68 transitions. Second operand 5 states. [2019-11-28 18:27:19,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:27:19,156 INFO L93 Difference]: Finished difference Result 37 states and 62 transitions. [2019-11-28 18:27:19,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:27:19,157 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 18:27:19,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:27:19,158 INFO L225 Difference]: With dead ends: 37 [2019-11-28 18:27:19,158 INFO L226 Difference]: Without dead ends: 30 [2019-11-28 18:27:19,159 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 [2019-11-28 18:27:19,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-28 18:27:19,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-28 18:27:19,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-28 18:27:19,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 50 transitions. [2019-11-28 18:27:19,165 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 50 transitions. Word has length 9 [2019-11-28 18:27:19,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:27:19,166 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 50 transitions. [2019-11-28 18:27:19,166 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:27:19,166 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2019-11-28 18:27:19,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:27:19,167 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:27:19,167 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:27:19,167 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:27:19,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:27:19,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1761057975, now seen corresponding path program 1 times [2019-11-28 18:27:19,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:27:19,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539613108] [2019-11-28 18:27:19,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:27:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:27:19,318 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 18:27:19,318 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539613108] [2019-11-28 18:27:19,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:27:19,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 18:27:19,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857010461] [2019-11-28 18:27:19,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 18:27:19,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:27:19,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 18:27:19,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:27:19,321 INFO L87 Difference]: Start difference. First operand 30 states and 50 transitions. Second operand 6 states. [2019-11-28 18:27:19,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:27:19,404 INFO L93 Difference]: Finished difference Result 28 states and 44 transitions. [2019-11-28 18:27:19,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 18:27:19,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-28 18:27:19,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:27:19,406 INFO L225 Difference]: With dead ends: 28 [2019-11-28 18:27:19,406 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 18:27:19,406 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 18:27:19,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 18:27:19,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-28 18:27:19,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 18:27:19,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 38 transitions. [2019-11-28 18:27:19,412 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 38 transitions. Word has length 10 [2019-11-28 18:27:19,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:27:19,412 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 38 transitions. [2019-11-28 18:27:19,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 18:27:19,412 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2019-11-28 18:27:19,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:27:19,414 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:27:19,414 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:27:19,414 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:27:19,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:27:19,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1241694939, now seen corresponding path program 1 times [2019-11-28 18:27:19,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:27:19,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397023444] [2019-11-28 18:27:19,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:27:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:27:19,547 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 18:27:19,548 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397023444] [2019-11-28 18:27:19,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:27:19,548 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:27:19,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531872939] [2019-11-28 18:27:19,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:27:19,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:27:19,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:27:19,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:27:19,551 INFO L87 Difference]: Start difference. First operand 24 states and 38 transitions. Second operand 5 states. [2019-11-28 18:27:19,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:27:19,590 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2019-11-28 18:27:19,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:27:19,591 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-28 18:27:19,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:27:19,592 INFO L225 Difference]: With dead ends: 32 [2019-11-28 18:27:19,592 INFO L226 Difference]: Without dead ends: 18 [2019-11-28 18:27:19,593 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 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 18:27:19,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-28 18:27:19,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-28 18:27:19,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 18:27:19,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-11-28 18:27:19,597 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 11 [2019-11-28 18:27:19,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:27:19,597 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-28 18:27:19,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:27:19,598 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-11-28 18:27:19,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:27:19,599 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:27:19,599 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:27:19,599 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:27:19,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:27:19,600 INFO L82 PathProgramCache]: Analyzing trace with hash -379741151, now seen corresponding path program 2 times [2019-11-28 18:27:19,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:27:19,600 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382006475] [2019-11-28 18:27:19,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:27:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:27:19,687 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 18:27:19,690 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382006475] [2019-11-28 18:27:19,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:27:19,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:27:19,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503375663] [2019-11-28 18:27:19,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:27:19,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:27:19,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:27:19,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:27:19,692 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 4 states. [2019-11-28 18:27:19,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:27:19,720 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-11-28 18:27:19,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:27:19,720 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:27:19,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:27:19,722 INFO L225 Difference]: With dead ends: 21 [2019-11-28 18:27:19,722 INFO L226 Difference]: Without dead ends: 17 [2019-11-28 18:27:19,723 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 18:27:19,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-28 18:27:19,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-28 18:27:19,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-28 18:27:19,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-11-28 18:27:19,726 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-11-28 18:27:19,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:27:19,726 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-11-28 18:27:19,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:27:19,726 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-11-28 18:27:19,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:27:19,727 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:27:19,727 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:27:19,727 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:27:19,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:27:19,728 INFO L82 PathProgramCache]: Analyzing trace with hash -377953691, now seen corresponding path program 3 times [2019-11-28 18:27:19,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:27:19,728 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790043720] [2019-11-28 18:27:19,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:27:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:27:19,800 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 18:27:19,800 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790043720] [2019-11-28 18:27:19,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:27:19,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:27:19,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678332483] [2019-11-28 18:27:19,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:27:19,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:27:19,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:27:19,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:27:19,803 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-11-28 18:27:19,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:27:19,817 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-11-28 18:27:19,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:27:19,818 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:27:19,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:27:19,819 INFO L225 Difference]: With dead ends: 16 [2019-11-28 18:27:19,819 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:27:19,819 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 18:27:19,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:27:19,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:27:19,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:27:19,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:27:19,820 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-28 18:27:19,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:27:19,821 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:27:19,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:27:19,821 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:27:19,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:27:19,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:27:19 BasicIcfg [2019-11-28 18:27:19,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:27:19,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:27:19,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:27:19,827 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:27:19,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:27:16" (3/4) ... [2019-11-28 18:27:19,832 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:27:19,839 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-28 18:27:19,840 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-28 18:27:19,840 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-28 18:27:19,845 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-28 18:27:19,845 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:27:19,846 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:27:19,916 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:27:19,916 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:27:19,919 INFO L168 Benchmark]: Toolchain (without parser) took 4172.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.2 MB). Free memory was 952.3 MB in the beginning and 1.2 GB in the end (delta: -246.9 MB). Peak memory consumption was 285.4 MB. Max. memory is 11.5 GB. [2019-11-28 18:27:19,920 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:27:19,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-28 18:27:19,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.98 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 18:27:19,922 INFO L168 Benchmark]: Boogie Preprocessor took 27.36 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 18:27:19,922 INFO L168 Benchmark]: RCFGBuilder took 415.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-28 18:27:19,923 INFO L168 Benchmark]: TraceAbstraction took 2902.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 818.4 MB in the end (delta: 264.3 MB). Peak memory consumption was 264.3 MB. Max. memory is 11.5 GB. [2019-11-28 18:27:19,924 INFO L168 Benchmark]: Witness Printer took 89.57 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 818.4 MB in the beginning and 1.2 GB in the end (delta: -380.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-11-28 18:27:19,928 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 687.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.98 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 27.36 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 415.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2902.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 818.4 MB in the end (delta: 264.3 MB). Peak memory consumption was 264.3 MB. Max. memory is 11.5 GB. * Witness Printer took 89.57 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 818.4 MB in the beginning and 1.2 GB in the end (delta: -380.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 219 VarBasedMoverChecksPositive, 16 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 444 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 54 SDtfs, 82 SDslu, 51 SDs, 0 SdLazy, 65 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1934 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...