./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f6fb2bb1 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/safe035_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 70efc5b1533edc3c6ba6ef08e0971226cf57b783 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 19:21:34,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 19:21:34,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 19:21:34,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 19:21:34,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 19:21:34,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 19:21:34,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 19:21:34,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 19:21:34,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 19:21:34,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 19:21:34,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 19:21:34,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 19:21:34,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 19:21:34,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 19:21:34,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 19:21:34,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 19:21:34,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 19:21:34,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 19:21:34,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 19:21:34,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 19:21:34,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 19:21:34,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 19:21:34,127 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 19:21:34,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 19:21:34,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 19:21:34,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 19:21:34,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 19:21:34,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 19:21:34,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 19:21:34,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 19:21:34,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 19:21:34,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 19:21:34,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 19:21:34,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 19:21:34,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 19:21:34,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 19:21:34,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 19:21:34,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 19:21:34,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 19:21:34,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 19:21:34,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 19:21:34,148 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 19:21:34,169 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 19:21:34,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 19:21:34,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 19:21:34,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 19:21:34,172 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 19:21:34,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 19:21:34,173 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 19:21:34,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 19:21:34,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 19:21:34,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 19:21:34,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 19:21:34,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 19:21:34,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 19:21:34,176 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 19:21:34,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 19:21:34,177 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 19:21:34,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 19:21:34,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 19:21:34,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 19:21:34,178 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 19:21:34,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 19:21:34,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 19:21:34,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 19:21:34,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 19:21:34,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 19:21:34,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 19:21:34,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 19:21:34,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 19:21:34,181 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 -> 70efc5b1533edc3c6ba6ef08e0971226cf57b783 [2019-11-19 19:21:34,503 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 19:21:34,516 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 19:21:34,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 19:21:34,521 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 19:21:34,522 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 19:21:34,523 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i [2019-11-19 19:21:34,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f795b573/0c909e99be804ee89d3933ad7af564f1/FLAG5f3f1237a [2019-11-19 19:21:35,155 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 19:21:35,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_tso.opt.i [2019-11-19 19:21:35,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f795b573/0c909e99be804ee89d3933ad7af564f1/FLAG5f3f1237a [2019-11-19 19:21:35,414 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f795b573/0c909e99be804ee89d3933ad7af564f1 [2019-11-19 19:21:35,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 19:21:35,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 19:21:35,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 19:21:35,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 19:21:35,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 19:21:35,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:21:35" (1/1) ... [2019-11-19 19:21:35,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5989fe69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:35, skipping insertion in model container [2019-11-19 19:21:35,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:21:35" (1/1) ... [2019-11-19 19:21:35,438 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 19:21:35,482 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 19:21:35,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:21:35,961 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 19:21:36,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 19:21:36,144 INFO L192 MainTranslator]: Completed translation [2019-11-19 19:21:36,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:36 WrapperNode [2019-11-19 19:21:36,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 19:21:36,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 19:21:36,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 19:21:36,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 19:21:36,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:36" (1/1) ... [2019-11-19 19:21:36,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:36" (1/1) ... [2019-11-19 19:21:36,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 19:21:36,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 19:21:36,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 19:21:36,206 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 19:21:36,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:36" (1/1) ... [2019-11-19 19:21:36,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:36" (1/1) ... [2019-11-19 19:21:36,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:36" (1/1) ... [2019-11-19 19:21:36,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:36" (1/1) ... [2019-11-19 19:21:36,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:36" (1/1) ... [2019-11-19 19:21:36,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:36" (1/1) ... [2019-11-19 19:21:36,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:36" (1/1) ... [2019-11-19 19:21:36,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 19:21:36,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 19:21:36,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 19:21:36,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 19:21:36,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:36" (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 [2019-11-19 19:21:36,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 19:21:36,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-19 19:21:36,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 19:21:36,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 19:21:36,326 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-19 19:21:36,326 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-19 19:21:36,326 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-19 19:21:36,326 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-19 19:21:36,326 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-19 19:21:36,327 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-19 19:21:36,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-19 19:21:36,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 19:21:36,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 19:21:36,330 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-19 19:21:36,772 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 19:21:36,773 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-19 19:21:36,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:36 BoogieIcfgContainer [2019-11-19 19:21:36,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 19:21:36,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 19:21:36,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 19:21:36,779 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 19:21:36,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:21:35" (1/3) ... [2019-11-19 19:21:36,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9c1d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:21:36, skipping insertion in model container [2019-11-19 19:21:36,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:21:36" (2/3) ... [2019-11-19 19:21:36,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c9c1d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:21:36, skipping insertion in model container [2019-11-19 19:21:36,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:36" (3/3) ... [2019-11-19 19:21:36,783 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_tso.opt.i [2019-11-19 19:21:36,835 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,835 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,835 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,835 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,836 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,836 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,836 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,839 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,839 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,839 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,840 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,840 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,840 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,840 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,841 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,844 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,844 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,845 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,845 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,845 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,845 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,846 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,846 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,846 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,847 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,847 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,847 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,848 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,848 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,849 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,849 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,849 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,849 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,849 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,850 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,850 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,850 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,851 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,855 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,855 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,855 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,856 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,856 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,856 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,856 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,856 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,857 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,857 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,857 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,857 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,858 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,858 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,858 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,858 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-19 19:21:36,889 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-19 19:21:36,890 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 19:21:36,898 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 19:21:36,908 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 19:21:36,926 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 19:21:36,926 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 19:21:36,926 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 19:21:36,926 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 19:21:36,926 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 19:21:36,926 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 19:21:36,927 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 19:21:36,927 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 19:21:36,939 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 74 transitions [2019-11-19 19:21:40,967 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31743 states. [2019-11-19 19:21:40,969 INFO L276 IsEmpty]: Start isEmpty. Operand 31743 states. [2019-11-19 19:21:41,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-19 19:21:41,031 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:21:41,032 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:21:41,033 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:21:41,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:21:41,040 INFO L82 PathProgramCache]: Analyzing trace with hash -553181940, now seen corresponding path program 1 times [2019-11-19 19:21:41,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:21:41,051 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204206105] [2019-11-19 19:21:41,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:21:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:21:41,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:21:41,439 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204206105] [2019-11-19 19:21:41,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:21:41,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-19 19:21:41,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860640930] [2019-11-19 19:21:41,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-19 19:21:41,448 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:21:41,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-19 19:21:41,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-19 19:21:41,467 INFO L87 Difference]: Start difference. First operand 31743 states. Second operand 4 states. [2019-11-19 19:21:41,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:21:41,953 INFO L93 Difference]: Finished difference Result 33012 states and 103292 transitions. [2019-11-19 19:21:41,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 19:21:41,956 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-19 19:21:41,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:21:42,305 INFO L225 Difference]: With dead ends: 33012 [2019-11-19 19:21:42,305 INFO L226 Difference]: Without dead ends: 14274 [2019-11-19 19:21:42,307 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-19 19:21:42,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14274 states. [2019-11-19 19:21:42,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14274 to 14274. [2019-11-19 19:21:42,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14274 states. [2019-11-19 19:21:43,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14274 states to 14274 states and 44297 transitions. [2019-11-19 19:21:43,051 INFO L78 Accepts]: Start accepts. Automaton has 14274 states and 44297 transitions. Word has length 30 [2019-11-19 19:21:43,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:21:43,053 INFO L462 AbstractCegarLoop]: Abstraction has 14274 states and 44297 transitions. [2019-11-19 19:21:43,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-19 19:21:43,054 INFO L276 IsEmpty]: Start isEmpty. Operand 14274 states and 44297 transitions. [2019-11-19 19:21:43,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-19 19:21:43,083 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:21:43,083 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:21:43,083 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:21:43,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:21:43,093 INFO L82 PathProgramCache]: Analyzing trace with hash -2030405414, now seen corresponding path program 1 times [2019-11-19 19:21:43,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:21:43,094 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725568906] [2019-11-19 19:21:43,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:21:43,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:21:43,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:21:43,263 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725568906] [2019-11-19 19:21:43,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:21:43,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 19:21:43,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629103301] [2019-11-19 19:21:43,265 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-19 19:21:43,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:21:43,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 19:21:43,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-19 19:21:43,267 INFO L87 Difference]: Start difference. First operand 14274 states and 44297 transitions. Second operand 5 states. [2019-11-19 19:21:43,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:21:43,560 INFO L93 Difference]: Finished difference Result 14274 states and 42110 transitions. [2019-11-19 19:21:43,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 19:21:43,561 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-19 19:21:43,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:21:43,633 INFO L225 Difference]: With dead ends: 14274 [2019-11-19 19:21:43,633 INFO L226 Difference]: Without dead ends: 12573 [2019-11-19 19:21:43,634 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-19 19:21:43,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12573 states. [2019-11-19 19:21:44,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12573 to 12573. [2019-11-19 19:21:44,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12573 states. [2019-11-19 19:21:44,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12573 states to 12573 states and 38060 transitions. [2019-11-19 19:21:44,088 INFO L78 Accepts]: Start accepts. Automaton has 12573 states and 38060 transitions. Word has length 31 [2019-11-19 19:21:44,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:21:44,089 INFO L462 AbstractCegarLoop]: Abstraction has 12573 states and 38060 transitions. [2019-11-19 19:21:44,089 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-19 19:21:44,089 INFO L276 IsEmpty]: Start isEmpty. Operand 12573 states and 38060 transitions. [2019-11-19 19:21:44,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-19 19:21:44,116 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:21:44,116 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:21:44,116 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:21:44,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:21:44,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1570074405, now seen corresponding path program 1 times [2019-11-19 19:21:44,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:21:44,117 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669886228] [2019-11-19 19:21:44,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:21:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:21:44,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:21:44,235 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669886228] [2019-11-19 19:21:44,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:21:44,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-19 19:21:44,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741925199] [2019-11-19 19:21:44,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 19:21:44,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:21:44,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 19:21:44,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-19 19:21:44,238 INFO L87 Difference]: Start difference. First operand 12573 states and 38060 transitions. Second operand 6 states. [2019-11-19 19:21:44,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:21:44,435 INFO L93 Difference]: Finished difference Result 8928 states and 24938 transitions. [2019-11-19 19:21:44,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 19:21:44,436 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-19 19:21:44,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:21:44,460 INFO L225 Difference]: With dead ends: 8928 [2019-11-19 19:21:44,460 INFO L226 Difference]: Without dead ends: 7470 [2019-11-19 19:21:44,461 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-19 19:21:44,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7470 states. [2019-11-19 19:21:44,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7470 to 7470. [2019-11-19 19:21:44,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7470 states. [2019-11-19 19:21:44,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7470 states to 7470 states and 21050 transitions. [2019-11-19 19:21:44,883 INFO L78 Accepts]: Start accepts. Automaton has 7470 states and 21050 transitions. Word has length 32 [2019-11-19 19:21:44,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:21:44,883 INFO L462 AbstractCegarLoop]: Abstraction has 7470 states and 21050 transitions. [2019-11-19 19:21:44,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 19:21:44,884 INFO L276 IsEmpty]: Start isEmpty. Operand 7470 states and 21050 transitions. [2019-11-19 19:21:44,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-19 19:21:44,897 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:21:44,897 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:21:44,897 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:21:44,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:21:44,898 INFO L82 PathProgramCache]: Analyzing trace with hash 748748695, now seen corresponding path program 1 times [2019-11-19 19:21:44,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:21:44,898 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879401520] [2019-11-19 19:21:44,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:21:44,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:21:45,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:21:45,107 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879401520] [2019-11-19 19:21:45,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:21:45,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-19 19:21:45,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579881011] [2019-11-19 19:21:45,108 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 19:21:45,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:21:45,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 19:21:45,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-19 19:21:45,111 INFO L87 Difference]: Start difference. First operand 7470 states and 21050 transitions. Second operand 8 states. [2019-11-19 19:21:45,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:21:45,577 INFO L93 Difference]: Finished difference Result 21402 states and 60281 transitions. [2019-11-19 19:21:45,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-19 19:21:45,578 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-11-19 19:21:45,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:21:45,608 INFO L225 Difference]: With dead ends: 21402 [2019-11-19 19:21:45,608 INFO L226 Difference]: Without dead ends: 6435 [2019-11-19 19:21:45,609 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2019-11-19 19:21:45,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6435 states. [2019-11-19 19:21:45,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6435 to 6435. [2019-11-19 19:21:45,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6435 states. [2019-11-19 19:21:45,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6435 states to 6435 states and 18017 transitions. [2019-11-19 19:21:45,790 INFO L78 Accepts]: Start accepts. Automaton has 6435 states and 18017 transitions. Word has length 33 [2019-11-19 19:21:45,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:21:45,791 INFO L462 AbstractCegarLoop]: Abstraction has 6435 states and 18017 transitions. [2019-11-19 19:21:45,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 19:21:45,791 INFO L276 IsEmpty]: Start isEmpty. Operand 6435 states and 18017 transitions. [2019-11-19 19:21:45,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-19 19:21:45,802 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 19:21:45,802 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 19:21:45,803 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 19:21:45,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 19:21:45,803 INFO L82 PathProgramCache]: Analyzing trace with hash 41604923, now seen corresponding path program 2 times [2019-11-19 19:21:45,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 19:21:45,804 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671837989] [2019-11-19 19:21:45,804 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 19:21:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 19:21:45,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 19:21:45,941 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671837989] [2019-11-19 19:21:45,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 19:21:45,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-19 19:21:45,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271780858] [2019-11-19 19:21:45,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-19 19:21:45,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 19:21:45,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 19:21:45,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-19 19:21:45,943 INFO L87 Difference]: Start difference. First operand 6435 states and 18017 transitions. Second operand 7 states. [2019-11-19 19:21:46,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 19:21:46,119 INFO L93 Difference]: Finished difference Result 4977 states and 13643 transitions. [2019-11-19 19:21:46,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-19 19:21:46,120 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-19 19:21:46,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 19:21:46,120 INFO L225 Difference]: With dead ends: 4977 [2019-11-19 19:21:46,121 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 19:21:46,121 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-19 19:21:46,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 19:21:46,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 19:21:46,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 19:21:46,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 19:21:46,122 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-19 19:21:46,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 19:21:46,123 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 19:21:46,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-19 19:21:46,123 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 19:21:46,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 19:21:46,127 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-19 19:21:46,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:21:46 BasicIcfg [2019-11-19 19:21:46,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 19:21:46,130 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 19:21:46,130 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 19:21:46,130 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 19:21:46,131 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:21:36" (3/4) ... [2019-11-19 19:21:46,135 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 19:21:46,143 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-19 19:21:46,144 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-19 19:21:46,144 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-19 19:21:46,149 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-19 19:21:46,150 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-19 19:21:46,199 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 19:21:46,199 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 19:21:46,202 INFO L168 Benchmark]: Toolchain (without parser) took 10782.31 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 651.7 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -189.9 MB). Peak memory consumption was 461.8 MB. Max. memory is 11.5 GB. [2019-11-19 19:21:46,203 INFO L168 Benchmark]: CDTParser took 0.27 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. [2019-11-19 19:21:46,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -139.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-19 19:21:46,204 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.91 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. [2019-11-19 19:21:46,205 INFO L168 Benchmark]: Boogie Preprocessor took 27.83 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. [2019-11-19 19:21:46,206 INFO L168 Benchmark]: RCFGBuilder took 540.84 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-11-19 19:21:46,207 INFO L168 Benchmark]: TraceAbstraction took 9353.84 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 523.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -91.0 MB). Peak memory consumption was 432.3 MB. Max. memory is 11.5 GB. [2019-11-19 19:21:46,207 INFO L168 Benchmark]: Witness Printer took 69.88 ms. Allocated memory is still 1.7 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2019-11-19 19:21:46,211 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 725.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -139.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.91 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 27.83 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 540.84 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9353.84 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 523.2 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -91.0 MB). Peak memory consumption was 432.3 MB. Max. memory is 11.5 GB. * Witness Printer took 69.88 ms. Allocated memory is still 1.7 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 89 locations, 1 error locations. Result: SAFE, OverallTime: 9.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 527 SDtfs, 754 SDslu, 1386 SDs, 0 SdLazy, 209 SolverSat, 118 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31743occurred 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: 1.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 14286 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...