./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe014_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/safe014_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 c49d0982c6423da7fb0066ed116f2a6952b27634 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:28:36,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:28:36,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:28:36,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:28:36,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:28:36,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:28:36,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:28:36,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:28:36,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:28:36,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:28:36,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:28:36,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:28:36,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:28:36,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:28:36,512 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:28:36,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:28:36,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:28:36,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:28:36,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:28:36,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:28:36,526 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:28:36,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:28:36,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:28:36,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:28:36,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:28:36,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:28:36,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:28:36,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:28:36,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:28:36,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:28:36,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:28:36,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:28:36,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:28:36,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:28:36,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:28:36,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:28:36,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:28:36,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:28:36,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:28:36,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:28:36,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:28:36,548 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:28:36,583 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:28:36,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:28:36,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:28:36,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:28:36,587 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:28:36,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:28:36,587 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:28:36,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:28:36,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:28:36,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:28:36,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:28:36,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:28:36,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:28:36,590 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:28:36,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:28:36,591 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:28:36,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:28:36,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:28:36,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:28:36,592 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:28:36,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:28:36,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:28:36,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:28:36,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:28:36,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:28:36,594 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:28:36,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:28:36,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:28:36,595 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:28:36,595 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 -> c49d0982c6423da7fb0066ed116f2a6952b27634 [2019-11-28 18:28:36,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:28:36,937 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:28:36,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:28:36,942 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:28:36,943 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:28:36,943 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe014_tso.opt.i [2019-11-28 18:28:37,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f1bad173/182c1a5e3d1b422b83040621f2177f65/FLAGa51e8a54e [2019-11-28 18:28:37,597 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:28:37,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe014_tso.opt.i [2019-11-28 18:28:37,620 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f1bad173/182c1a5e3d1b422b83040621f2177f65/FLAGa51e8a54e [2019-11-28 18:28:37,900 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f1bad173/182c1a5e3d1b422b83040621f2177f65 [2019-11-28 18:28:37,903 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:28:37,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:28:37,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:28:37,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:28:37,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:28:37,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:28:37" (1/1) ... [2019-11-28 18:28:37,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ad889a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:37, skipping insertion in model container [2019-11-28 18:28:37,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:28:37" (1/1) ... [2019-11-28 18:28:37,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:28:37,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:28:38,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:28:38,409 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:28:38,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:28:38,551 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:28:38,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:38 WrapperNode [2019-11-28 18:28:38,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:28:38,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:28:38,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:28:38,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:28:38,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:38" (1/1) ... [2019-11-28 18:28:38,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:38" (1/1) ... [2019-11-28 18:28:38,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:28:38,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:28:38,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:28:38,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:28:38,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:38" (1/1) ... [2019-11-28 18:28:38,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:38" (1/1) ... [2019-11-28 18:28:38,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:38" (1/1) ... [2019-11-28 18:28:38,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:38" (1/1) ... [2019-11-28 18:28:38,622 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:38" (1/1) ... [2019-11-28 18:28:38,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:38" (1/1) ... [2019-11-28 18:28:38,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:38" (1/1) ... [2019-11-28 18:28:38,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:28:38,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:28:38,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:28:38,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:28:38,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:38" (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 18:28:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:28:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-28 18:28:38,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:28:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:28:38,697 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-28 18:28:38,697 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-28 18:28:38,698 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-28 18:28:38,698 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-28 18:28:38,698 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-28 18:28:38,700 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-28 18:28:38,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-28 18:28:38,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:28:38,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:28:38,703 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 18:28:39,038 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:28:39,038 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 18:28:39,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:28:39 BoogieIcfgContainer [2019-11-28 18:28:39,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:28:39,040 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:28:39,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:28:39,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:28:39,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:28:37" (1/3) ... [2019-11-28 18:28:39,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32cecbef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:28:39, skipping insertion in model container [2019-11-28 18:28:39,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:28:38" (2/3) ... [2019-11-28 18:28:39,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32cecbef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:28:39, skipping insertion in model container [2019-11-28 18:28:39,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:28:39" (3/3) ... [2019-11-28 18:28:39,046 INFO L109 eAbstractionObserver]: Analyzing ICFG safe014_tso.opt.i [2019-11-28 18:28:39,056 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:28:39,056 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:28:39,063 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 18:28:39,064 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:28:39,088 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,089 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,089 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,094 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,094 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,094 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,095 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,095 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,095 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,096 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,096 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,096 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,097 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,097 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,097 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,097 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,097 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,098 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:28:39,121 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 18:28:39,142 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:28:39,142 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:28:39,142 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:28:39,142 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:28:39,143 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:28:39,143 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:28:39,144 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:28:39,144 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:28:39,160 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-11-28 18:28:39,162 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-11-28 18:28:39,209 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-11-28 18:28:39,209 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:28:39,216 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 18:28:39,219 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-11-28 18:28:39,238 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-11-28 18:28:39,238 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:28:39,240 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 18:28:39,243 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-11-28 18:28:39,244 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:28:40,541 WARN L192 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2019-11-28 18:28:40,648 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-11-28 18:28:40,746 INFO L206 etLargeBlockEncoding]: Checked pairs total: 478 [2019-11-28 18:28:40,747 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-11-28 18:28:40,752 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-11-28 18:28:40,768 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-11-28 18:28:40,771 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-11-28 18:28:40,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 18:28:40,781 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:28:40,783 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:28:40,784 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:28:40,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:28:40,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1804038140, now seen corresponding path program 1 times [2019-11-28 18:28:40,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:28:40,806 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825750475] [2019-11-28 18:28:40,806 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:28:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:28:41,204 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 18:28:41,205 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825750475] [2019-11-28 18:28:41,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:28:41,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:28:41,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180150404] [2019-11-28 18:28:41,215 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:28:41,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:28:41,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:28:41,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:28:41,235 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 4 states. [2019-11-28 18:28:41,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:28:41,303 INFO L93 Difference]: Finished difference Result 58 states and 113 transitions. [2019-11-28 18:28:41,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:28:41,305 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 18:28:41,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:28:41,321 INFO L225 Difference]: With dead ends: 58 [2019-11-28 18:28:41,321 INFO L226 Difference]: Without dead ends: 36 [2019-11-28 18:28:41,326 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 18:28:41,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-28 18:28:41,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-28 18:28:41,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-28 18:28:41,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 68 transitions. [2019-11-28 18:28:41,357 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 68 transitions. Word has length 8 [2019-11-28 18:28:41,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:28:41,357 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 68 transitions. [2019-11-28 18:28:41,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:28:41,358 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2019-11-28 18:28:41,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 18:28:41,359 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:28:41,359 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:28:41,359 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:28:41,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:28:41,359 INFO L82 PathProgramCache]: Analyzing trace with hash 982750768, now seen corresponding path program 1 times [2019-11-28 18:28:41,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:28:41,360 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797746796] [2019-11-28 18:28:41,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:28:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:28:41,449 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 18:28:41,450 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797746796] [2019-11-28 18:28:41,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:28:41,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:28:41,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698781274] [2019-11-28 18:28:41,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:28:41,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:28:41,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:28:41,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:28:41,454 INFO L87 Difference]: Start difference. First operand 36 states and 68 transitions. Second operand 4 states. [2019-11-28 18:28:41,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:28:41,471 INFO L93 Difference]: Finished difference Result 39 states and 65 transitions. [2019-11-28 18:28:41,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:28:41,472 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-28 18:28:41,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:28:41,473 INFO L225 Difference]: With dead ends: 39 [2019-11-28 18:28:41,474 INFO L226 Difference]: Without dead ends: 37 [2019-11-28 18:28:41,474 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 18:28:41,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-28 18:28:41,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2019-11-28 18:28:41,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-28 18:28:41,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 61 transitions. [2019-11-28 18:28:41,482 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 61 transitions. Word has length 9 [2019-11-28 18:28:41,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:28:41,482 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 61 transitions. [2019-11-28 18:28:41,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:28:41,483 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 61 transitions. [2019-11-28 18:28:41,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 18:28:41,483 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:28:41,484 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:28:41,484 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:28:41,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:28:41,484 INFO L82 PathProgramCache]: Analyzing trace with hash 90665039, now seen corresponding path program 1 times [2019-11-28 18:28:41,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:28:41,485 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257126851] [2019-11-28 18:28:41,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:28:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:28:41,608 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 18:28:41,608 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257126851] [2019-11-28 18:28:41,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:28:41,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:28:41,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894751315] [2019-11-28 18:28:41,611 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:28:41,612 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:28:41,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:28:41,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:28:41,613 INFO L87 Difference]: Start difference. First operand 35 states and 61 transitions. Second operand 5 states. [2019-11-28 18:28:41,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:28:41,674 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2019-11-28 18:28:41,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:28:41,675 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 18:28:41,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:28:41,676 INFO L225 Difference]: With dead ends: 39 [2019-11-28 18:28:41,676 INFO L226 Difference]: Without dead ends: 31 [2019-11-28 18:28:41,677 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 18:28:41,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-28 18:28:41,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-28 18:28:41,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-28 18:28:41,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 49 transitions. [2019-11-28 18:28:41,685 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 49 transitions. Word has length 9 [2019-11-28 18:28:41,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:28:41,685 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 49 transitions. [2019-11-28 18:28:41,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:28:41,685 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2019-11-28 18:28:41,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:28:41,686 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:28:41,686 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:28:41,687 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:28:41,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:28:41,689 INFO L82 PathProgramCache]: Analyzing trace with hash 400560283, now seen corresponding path program 1 times [2019-11-28 18:28:41,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:28:41,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004960648] [2019-11-28 18:28:41,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:28:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:28:41,787 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 18:28:41,788 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004960648] [2019-11-28 18:28:41,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:28:41,788 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 18:28:41,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881940959] [2019-11-28 18:28:41,789 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 18:28:41,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:28:41,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 18:28:41,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:28:41,790 INFO L87 Difference]: Start difference. First operand 31 states and 49 transitions. Second operand 6 states. [2019-11-28 18:28:41,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:28:41,880 INFO L93 Difference]: Finished difference Result 30 states and 45 transitions. [2019-11-28 18:28:41,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 18:28:41,880 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-28 18:28:41,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:28:41,881 INFO L225 Difference]: With dead ends: 30 [2019-11-28 18:28:41,881 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 18:28:41,882 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 18:28:41,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 18:28:41,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2019-11-28 18:28:41,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-28 18:28:41,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 35 transitions. [2019-11-28 18:28:41,891 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 35 transitions. Word has length 10 [2019-11-28 18:28:41,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:28:41,892 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 35 transitions. [2019-11-28 18:28:41,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 18:28:41,892 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2019-11-28 18:28:41,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:28:41,893 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:28:41,893 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:28:41,894 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:28:41,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:28:41,894 INFO L82 PathProgramCache]: Analyzing trace with hash -525836137, now seen corresponding path program 1 times [2019-11-28 18:28:41,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:28:41,895 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570622751] [2019-11-28 18:28:41,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:28:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:28:42,040 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 18:28:42,040 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570622751] [2019-11-28 18:28:42,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:28:42,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:28:42,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868512082] [2019-11-28 18:28:42,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:28:42,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:28:42,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:28:42,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:28:42,042 INFO L87 Difference]: Start difference. First operand 23 states and 35 transitions. Second operand 5 states. [2019-11-28 18:28:42,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:28:42,065 INFO L93 Difference]: Finished difference Result 26 states and 37 transitions. [2019-11-28 18:28:42,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:28:42,066 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-28 18:28:42,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:28:42,066 INFO L225 Difference]: With dead ends: 26 [2019-11-28 18:28:42,067 INFO L226 Difference]: Without dead ends: 12 [2019-11-28 18:28:42,067 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:28:42,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-28 18:28:42,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-28 18:28:42,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-28 18:28:42,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-11-28 18:28:42,069 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-11-28 18:28:42,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:28:42,070 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-11-28 18:28:42,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:28:42,070 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-11-28 18:28:42,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:28:42,070 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:28:42,071 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:28:42,071 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:28:42,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:28:42,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1231559623, now seen corresponding path program 2 times [2019-11-28 18:28:42,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:28:42,072 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320069685] [2019-11-28 18:28:42,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:28:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:28:42,167 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 18:28:42,168 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320069685] [2019-11-28 18:28:42,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:28:42,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:28:42,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941061279] [2019-11-28 18:28:42,169 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:28:42,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:28:42,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:28:42,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:28:42,170 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 5 states. [2019-11-28 18:28:42,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:28:42,184 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-11-28 18:28:42,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:28:42,185 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-28 18:28:42,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:28:42,185 INFO L225 Difference]: With dead ends: 11 [2019-11-28 18:28:42,185 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:28:42,186 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 18:28:42,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:28:42,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:28:42,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:28:42,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:28:42,187 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-28 18:28:42,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:28:42,187 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:28:42,187 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:28:42,187 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:28:42,188 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:28:42,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:28:42 BasicIcfg [2019-11-28 18:28:42,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:28:42,192 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:28:42,193 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:28:42,193 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:28:42,193 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:28:39" (3/4) ... [2019-11-28 18:28:42,197 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:28:42,204 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-28 18:28:42,204 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-28 18:28:42,204 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-28 18:28:42,209 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-28 18:28:42,209 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:28:42,209 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:28:42,263 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:28:42,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:28:42,266 INFO L168 Benchmark]: Toolchain (without parser) took 4361.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 217.1 MB). Free memory was 951.0 MB in the beginning and 1.2 GB in the end (delta: -226.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:28:42,266 INFO L168 Benchmark]: CDTParser took 0.79 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 18:28:42,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-28 18:28:42,268 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.66 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 18:28:42,268 INFO L168 Benchmark]: Boogie Preprocessor took 28.29 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 18:28:42,269 INFO L168 Benchmark]: RCFGBuilder took 408.39 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: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-11-28 18:28:42,270 INFO L168 Benchmark]: TraceAbstraction took 3152.18 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -95.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:28:42,270 INFO L168 Benchmark]: Witness Printer took 71.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. [2019-11-28 18:28:42,274 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 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 646.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -162.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.66 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 28.29 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 408.39 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: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3152.18 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -95.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 71.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 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: 3.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 85 SDslu, 44 SDs, 0 SdLazy, 58 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s 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, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 2686 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...