./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe024_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe024_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 265fff0a997b23c037fae60e80c5cfcb2f574b4f .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 18:31:06,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:31:06,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:31:06,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:31:06,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:31:06,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:31:06,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:31:06,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:31:06,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:31:06,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:31:06,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:31:06,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:31:06,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:31:06,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:31:06,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:31:06,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:31:06,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:31:06,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:31:06,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:31:06,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:31:06,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:31:06,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:31:06,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:31:06,205 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:31:06,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:31:06,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:31:06,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:31:06,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:31:06,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:31:06,210 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:31:06,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:31:06,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:31:06,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:31:06,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:31:06,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:31:06,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:31:06,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:31:06,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:31:06,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:31:06,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:31:06,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:31:06,217 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:31:06,231 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:31:06,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:31:06,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:31:06,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:31:06,233 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:31:06,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:31:06,234 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:31:06,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:31:06,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:31:06,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:31:06,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:31:06,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:31:06,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:31:06,235 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:31:06,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:31:06,235 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:31:06,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:31:06,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:31:06,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:31:06,236 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:31:06,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:31:06,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:31:06,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:31:06,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:31:06,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:31:06,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:31:06,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:31:06,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:31:06,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:31:06,238 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 -> 265fff0a997b23c037fae60e80c5cfcb2f574b4f [2019-11-28 18:31:06,552 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:31:06,566 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:31:06,569 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:31:06,571 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:31:06,572 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:31:06,572 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe024_tso.oepc.i [2019-11-28 18:31:06,636 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/980962b0c/765f157139774daf88fc1e6411f782ce/FLAG274ba6a2a [2019-11-28 18:31:07,187 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:31:07,188 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe024_tso.oepc.i [2019-11-28 18:31:07,205 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/980962b0c/765f157139774daf88fc1e6411f782ce/FLAG274ba6a2a [2019-11-28 18:31:07,512 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/980962b0c/765f157139774daf88fc1e6411f782ce [2019-11-28 18:31:07,515 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:31:07,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:31:07,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:31:07,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:31:07,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:31:07,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:31:07" (1/1) ... [2019-11-28 18:31:07,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f0adda1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:31:07, skipping insertion in model container [2019-11-28 18:31:07,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:31:07" (1/1) ... [2019-11-28 18:31:07,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:31:07,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:31:08,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:31:08,138 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:31:08,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:31:08,275 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:31:08,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:31:08 WrapperNode [2019-11-28 18:31:08,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:31:08,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:31:08,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:31:08,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:31:08,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:31:08" (1/1) ... [2019-11-28 18:31:08,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:31:08" (1/1) ... [2019-11-28 18:31:08,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:31:08,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:31:08,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:31:08,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:31:08,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:31:08" (1/1) ... [2019-11-28 18:31:08,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:31:08" (1/1) ... [2019-11-28 18:31:08,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:31:08" (1/1) ... [2019-11-28 18:31:08,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:31:08" (1/1) ... [2019-11-28 18:31:08,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:31:08" (1/1) ... [2019-11-28 18:31:08,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:31:08" (1/1) ... [2019-11-28 18:31:08,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:31:08" (1/1) ... [2019-11-28 18:31:08,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:31:08,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:31:08,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:31:08,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:31:08,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:31:08" (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 18:31:08,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:31:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-28 18:31:08,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:31:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:31:08,459 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-28 18:31:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-28 18:31:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-28 18:31:08,460 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-28 18:31:08,460 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-28 18:31:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-28 18:31:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-28 18:31:08,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:31:08,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:31:08,463 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 18:31:08,842 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:31:08,842 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 18:31:08,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:31:08 BoogieIcfgContainer [2019-11-28 18:31:08,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:31:08,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:31:08,845 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:31:08,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:31:08,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:31:07" (1/3) ... [2019-11-28 18:31:08,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c6b6d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:31:08, skipping insertion in model container [2019-11-28 18:31:08,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:31:08" (2/3) ... [2019-11-28 18:31:08,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c6b6d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:31:08, skipping insertion in model container [2019-11-28 18:31:08,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:31:08" (3/3) ... [2019-11-28 18:31:08,851 INFO L109 eAbstractionObserver]: Analyzing ICFG safe024_tso.oepc.i [2019-11-28 18:31:08,861 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:31:08,862 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:31:08,869 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 18:31:08,870 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:31:08,900 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,900 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,900 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,902 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,902 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,902 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,903 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,903 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,903 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,903 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,904 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,904 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,904 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,904 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,906 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,906 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,906 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,907 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:31:08,929 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 18:31:08,947 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:31:08,947 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:31:08,947 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:31:08,947 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:31:08,948 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:31:08,948 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:31:08,948 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:31:08,948 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:31:08,962 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-11-28 18:31:08,964 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-11-28 18:31:09,006 INFO L134 PetriNetUnfolder]: 1/52 cut-off events. [2019-11-28 18:31:09,006 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:31:09,014 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/59 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:31:09,016 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-11-28 18:31:09,037 INFO L134 PetriNetUnfolder]: 1/52 cut-off events. [2019-11-28 18:31:09,037 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:31:09,038 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/59 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:31:09,042 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-11-28 18:31:09,045 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:31:10,330 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-11-28 18:31:10,490 INFO L206 etLargeBlockEncoding]: Checked pairs total: 411 [2019-11-28 18:31:10,491 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-11-28 18:31:10,495 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-11-28 18:31:10,510 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-11-28 18:31:10,512 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-11-28 18:31:10,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 18:31:10,518 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:31:10,519 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:31:10,519 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:31:10,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:31:10,525 INFO L82 PathProgramCache]: Analyzing trace with hash 942939300, now seen corresponding path program 1 times [2019-11-28 18:31:10,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:31:10,532 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884770295] [2019-11-28 18:31:10,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:31:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:31:10,820 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 18:31:10,821 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884770295] [2019-11-28 18:31:10,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:31:10,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 18:31:10,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616196182] [2019-11-28 18:31:10,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 18:31:10,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:31:10,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 18:31:10,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:31:10,847 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-11-28 18:31:10,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:31:10,889 INFO L93 Difference]: Finished difference Result 50 states and 96 transitions. [2019-11-28 18:31:10,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:31:10,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-28 18:31:10,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:31:10,925 INFO L225 Difference]: With dead ends: 50 [2019-11-28 18:31:10,925 INFO L226 Difference]: Without dead ends: 36 [2019-11-28 18:31:10,930 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:31:10,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-28 18:31:10,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-28 18:31:10,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-28 18:31:10,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-11-28 18:31:10,972 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-11-28 18:31:10,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:31:10,974 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-11-28 18:31:10,974 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 18:31:10,974 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-11-28 18:31:10,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 18:31:10,975 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:31:10,976 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:31:10,976 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:31:10,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:31:10,977 INFO L82 PathProgramCache]: Analyzing trace with hash -745203074, now seen corresponding path program 1 times [2019-11-28 18:31:10,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:31:10,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22018006] [2019-11-28 18:31:10,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:31:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:31:11,094 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 18:31:11,095 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22018006] [2019-11-28 18:31:11,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:31:11,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:31:11,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976547331] [2019-11-28 18:31:11,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:31:11,098 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:31:11,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:31:11,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:31:11,099 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 5 states. [2019-11-28 18:31:11,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:31:11,175 INFO L93 Difference]: Finished difference Result 38 states and 66 transitions. [2019-11-28 18:31:11,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:31:11,175 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 18:31:11,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:31:11,176 INFO L225 Difference]: With dead ends: 38 [2019-11-28 18:31:11,176 INFO L226 Difference]: Without dead ends: 30 [2019-11-28 18:31:11,177 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 18:31:11,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-28 18:31:11,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-28 18:31:11,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-28 18:31:11,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 50 transitions. [2019-11-28 18:31:11,183 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 50 transitions. Word has length 9 [2019-11-28 18:31:11,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:31:11,183 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 50 transitions. [2019-11-28 18:31:11,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:31:11,184 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2019-11-28 18:31:11,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:31:11,184 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:31:11,184 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:31:11,185 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:31:11,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:31:11,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1626399439, now seen corresponding path program 1 times [2019-11-28 18:31:11,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:31:11,186 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552557633] [2019-11-28 18:31:11,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:31:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:31:11,300 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 18:31:11,301 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552557633] [2019-11-28 18:31:11,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:31:11,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 18:31:11,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434930184] [2019-11-28 18:31:11,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 18:31:11,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:31:11,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 18:31:11,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:31:11,303 INFO L87 Difference]: Start difference. First operand 30 states and 50 transitions. Second operand 6 states. [2019-11-28 18:31:11,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:31:11,384 INFO L93 Difference]: Finished difference Result 28 states and 44 transitions. [2019-11-28 18:31:11,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 18:31:11,385 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-28 18:31:11,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:31:11,386 INFO L225 Difference]: With dead ends: 28 [2019-11-28 18:31:11,386 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 18:31:11,387 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 18:31:11,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 18:31:11,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-28 18:31:11,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 18:31:11,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 38 transitions. [2019-11-28 18:31:11,392 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 38 transitions. Word has length 10 [2019-11-28 18:31:11,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:31:11,392 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 38 transitions. [2019-11-28 18:31:11,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 18:31:11,393 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 38 transitions. [2019-11-28 18:31:11,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:31:11,393 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:31:11,394 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:31:11,394 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:31:11,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:31:11,394 INFO L82 PathProgramCache]: Analyzing trace with hash 1121287201, now seen corresponding path program 1 times [2019-11-28 18:31:11,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:31:11,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655889358] [2019-11-28 18:31:11,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:31:11,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:31:11,508 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 18:31:11,508 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655889358] [2019-11-28 18:31:11,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:31:11,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:31:11,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579404641] [2019-11-28 18:31:11,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:31:11,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:31:11,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:31:11,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:31:11,511 INFO L87 Difference]: Start difference. First operand 24 states and 38 transitions. Second operand 4 states. [2019-11-28 18:31:11,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:31:11,539 INFO L93 Difference]: Finished difference Result 27 states and 40 transitions. [2019-11-28 18:31:11,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:31:11,540 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:31:11,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:31:11,541 INFO L225 Difference]: With dead ends: 27 [2019-11-28 18:31:11,541 INFO L226 Difference]: Without dead ends: 16 [2019-11-28 18:31:11,541 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:31:11,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-28 18:31:11,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-28 18:31:11,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-28 18:31:11,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-11-28 18:31:11,546 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-11-28 18:31:11,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:31:11,547 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-11-28 18:31:11,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:31:11,548 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-11-28 18:31:11,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:31:11,549 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:31:11,549 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:31:11,549 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:31:11,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:31:11,551 INFO L82 PathProgramCache]: Analyzing trace with hash 2077681673, now seen corresponding path program 2 times [2019-11-28 18:31:11,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:31:11,551 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443000101] [2019-11-28 18:31:11,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:31:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:31:11,654 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 18:31:11,654 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443000101] [2019-11-28 18:31:11,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:31:11,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:31:11,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428527633] [2019-11-28 18:31:11,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:31:11,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:31:11,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:31:11,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:31:11,660 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 4 states. [2019-11-28 18:31:11,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:31:11,691 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-11-28 18:31:11,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:31:11,692 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:31:11,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:31:11,692 INFO L225 Difference]: With dead ends: 19 [2019-11-28 18:31:11,692 INFO L226 Difference]: Without dead ends: 14 [2019-11-28 18:31:11,693 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 18:31:11,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-28 18:31:11,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-28 18:31:11,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-28 18:31:11,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-11-28 18:31:11,698 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2019-11-28 18:31:11,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:31:11,698 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-11-28 18:31:11,698 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:31:11,698 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-11-28 18:31:11,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:31:11,702 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:31:11,702 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:31:11,703 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:31:11,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:31:11,703 INFO L82 PathProgramCache]: Analyzing trace with hash 2080305203, now seen corresponding path program 3 times [2019-11-28 18:31:11,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:31:11,704 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212403276] [2019-11-28 18:31:11,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:31:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:31:11,767 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 18:31:11,769 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212403276] [2019-11-28 18:31:11,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:31:11,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:31:11,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423319998] [2019-11-28 18:31:11,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:31:11,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:31:11,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:31:11,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:31:11,773 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 4 states. [2019-11-28 18:31:11,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:31:11,791 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-11-28 18:31:11,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:31:11,792 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:31:11,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:31:11,792 INFO L225 Difference]: With dead ends: 13 [2019-11-28 18:31:11,792 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:31:11,793 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:31:11,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:31:11,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:31:11,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:31:11,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:31:11,795 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-28 18:31:11,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:31:11,796 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:31:11,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:31:11,796 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:31:11,796 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:31:11,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:31:11 BasicIcfg [2019-11-28 18:31:11,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:31:11,805 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:31:11,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:31:11,805 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:31:11,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:31:08" (3/4) ... [2019-11-28 18:31:11,811 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:31:11,821 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-28 18:31:11,822 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-28 18:31:11,822 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-28 18:31:11,832 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-28 18:31:11,833 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:31:11,833 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:31:11,897 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:31:11,898 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:31:11,900 INFO L168 Benchmark]: Toolchain (without parser) took 4382.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 956.3 MB in the beginning and 804.7 MB in the end (delta: 151.7 MB). Peak memory consumption was 279.1 MB. Max. memory is 11.5 GB. [2019-11-28 18:31:11,901 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:31:11,908 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -134.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-28 18:31:11,910 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.39 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 18:31:11,912 INFO L168 Benchmark]: Boogie Preprocessor took 39.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:31:11,916 INFO L168 Benchmark]: RCFGBuilder took 460.23 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: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2019-11-28 18:31:11,917 INFO L168 Benchmark]: TraceAbstraction took 2957.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 809.8 MB in the end (delta: 255.5 MB). Peak memory consumption was 255.5 MB. Max. memory is 11.5 GB. [2019-11-28 18:31:11,917 INFO L168 Benchmark]: Witness Printer took 93.58 ms. Allocated memory is still 1.2 GB. Free memory was 809.8 MB in the beginning and 804.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. [2019-11-28 18:31:11,921 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 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 759.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -134.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.39 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 39.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 460.23 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: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2957.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 809.8 MB in the end (delta: 255.5 MB). Peak memory consumption was 255.5 MB. Max. memory is 11.5 GB. * Witness Printer took 93.58 ms. Allocated memory is still 1.2 GB. Free memory was 809.8 MB in the beginning and 804.7 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 64 ProgramPointsBefore, 21 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 15 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 236 VarBasedMoverChecksPositive, 10 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 411 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 63 SDtfs, 65 SDslu, 59 SDs, 0 SdLazy, 50 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 2248 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...