./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/thin000_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/thin000_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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 213c3b6e80c2d30895f4d56afda95855a8c875e8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 22:25:52,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 22:25:52,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 22:25:52,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 22:25:52,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 22:25:52,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 22:25:52,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 22:25:52,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 22:25:52,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 22:25:52,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 22:25:52,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 22:25:52,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 22:25:52,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 22:25:52,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 22:25:52,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 22:25:52,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 22:25:52,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 22:25:52,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 22:25:52,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 22:25:52,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 22:25:52,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 22:25:52,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 22:25:52,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 22:25:52,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 22:25:52,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 22:25:52,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 22:25:52,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 22:25:52,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 22:25:52,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 22:25:52,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 22:25:52,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 22:25:52,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 22:25:52,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 22:25:52,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 22:25:52,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 22:25:52,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 22:25:52,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 22:25:52,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 22:25:52,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 22:25:52,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 22:25:52,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 22:25:52,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 22:25:52,211 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 22:25:52,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 22:25:52,212 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 22:25:52,212 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 22:25:52,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 22:25:52,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 22:25:52,215 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 22:25:52,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 22:25:52,215 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 22:25:52,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 22:25:52,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 22:25:52,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 22:25:52,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 22:25:52,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 22:25:52,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 22:25:52,217 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 22:25:52,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 22:25:52,217 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 22:25:52,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 22:25:52,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 22:25:52,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 22:25:52,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 22:25:52,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 22:25:52,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 22:25:52,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 22:25:52,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 22:25:52,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 22:25:52,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 22:25:52,219 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 22:25:52,219 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 22:25:52,219 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 213c3b6e80c2d30895f4d56afda95855a8c875e8 [2021-08-29 22:25:52,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 22:25:52,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 22:25:52,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 22:25:52,496 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 22:25:52,502 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 22:25:52,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin000_tso.oepc.i [2021-08-29 22:25:52,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab6ac5f79/a5c42e0ff11b4831b552c9ddb6516f49/FLAG4fff89422 [2021-08-29 22:25:52,980 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 22:25:52,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin000_tso.oepc.i [2021-08-29 22:25:52,999 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab6ac5f79/a5c42e0ff11b4831b552c9ddb6516f49/FLAG4fff89422 [2021-08-29 22:25:53,007 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab6ac5f79/a5c42e0ff11b4831b552c9ddb6516f49 [2021-08-29 22:25:53,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 22:25:53,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 22:25:53,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 22:25:53,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 22:25:53,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 22:25:53,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:25:53" (1/1) ... [2021-08-29 22:25:53,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4726c7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:53, skipping insertion in model container [2021-08-29 22:25:53,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:25:53" (1/1) ... [2021-08-29 22:25:53,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 22:25:53,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 22:25:53,217 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin000_tso.oepc.i[950,963] [2021-08-29 22:25:53,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 22:25:53,354 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 22:25:53,363 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin000_tso.oepc.i[950,963] [2021-08-29 22:25:53,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 22:25:53,430 INFO L208 MainTranslator]: Completed translation [2021-08-29 22:25:53,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:53 WrapperNode [2021-08-29 22:25:53,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 22:25:53,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 22:25:53,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 22:25:53,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 22:25:53,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:53" (1/1) ... [2021-08-29 22:25:53,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:53" (1/1) ... [2021-08-29 22:25:53,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 22:25:53,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 22:25:53,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 22:25:53,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 22:25:53,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:53" (1/1) ... [2021-08-29 22:25:53,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:53" (1/1) ... [2021-08-29 22:25:53,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:53" (1/1) ... [2021-08-29 22:25:53,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:53" (1/1) ... [2021-08-29 22:25:53,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:53" (1/1) ... [2021-08-29 22:25:53,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:53" (1/1) ... [2021-08-29 22:25:53,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:53" (1/1) ... [2021-08-29 22:25:53,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 22:25:53,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 22:25:53,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 22:25:53,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 22:25:53,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:53" (1/1) ... [2021-08-29 22:25:53,497 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 22:25:53,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 22:25:53,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 22:25:53,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 22:25:53,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 22:25:53,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-29 22:25:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 22:25:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 22:25:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-29 22:25:53,547 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-29 22:25:53,547 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-29 22:25:53,548 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-29 22:25:53,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 22:25:53,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-29 22:25:53,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 22:25:53,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 22:25:53,549 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-29 22:25:53,732 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 22:25:53,732 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-29 22:25:53,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:25:53 BoogieIcfgContainer [2021-08-29 22:25:53,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 22:25:53,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 22:25:53,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 22:25:53,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 22:25:53,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 10:25:53" (1/3) ... [2021-08-29 22:25:53,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e52a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:25:53, skipping insertion in model container [2021-08-29 22:25:53,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:25:53" (2/3) ... [2021-08-29 22:25:53,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e52a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:25:53, skipping insertion in model container [2021-08-29 22:25:53,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:25:53" (3/3) ... [2021-08-29 22:25:53,739 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_tso.oepc.i [2021-08-29 22:25:53,743 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-29 22:25:53,743 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 22:25:53,743 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 22:25:53,743 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-29 22:25:53,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,775 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,775 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,775 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,776 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,776 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,776 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,777 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,778 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,778 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,778 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,779 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,779 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,779 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,783 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,784 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,790 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,791 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-29 22:25:53,793 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-29 22:25:53,830 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 22:25:53,836 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 22:25:53,836 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-29 22:25:53,847 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-08-29 22:25:53,857 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 67 transitions, 144 flow [2021-08-29 22:25:53,859 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 67 transitions, 144 flow [2021-08-29 22:25:53,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 67 transitions, 144 flow [2021-08-29 22:25:53,900 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2021-08-29 22:25:53,901 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-08-29 22:25:53,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2021-08-29 22:25:53,907 INFO L116 LiptonReduction]: Number of co-enabled transitions 756 [2021-08-29 22:25:55,742 INFO L131 LiptonReduction]: Checked pairs total: 1496 [2021-08-29 22:25:55,742 INFO L133 LiptonReduction]: Total number of compositions: 62 [2021-08-29 22:25:55,760 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 15 transitions, 40 flow [2021-08-29 22:25:55,772 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 58 states, 57 states have (on average 2.1052631578947367) internal successors, (120), 57 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:55,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 57 states have (on average 2.1052631578947367) internal successors, (120), 57 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:55,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-29 22:25:55,777 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:55,778 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-29 22:25:55,780 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-29 22:25:55,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:55,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1311866131, now seen corresponding path program 1 times [2021-08-29 22:25:55,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:55,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506939676] [2021-08-29 22:25:55,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:55,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:55,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:55,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:55,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506939676] [2021-08-29 22:25:55,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506939676] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:55,968 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:55,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-29 22:25:55,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36366394] [2021-08-29 22:25:55,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 22:25:55,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:55,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 22:25:55,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:25:55,991 INFO L87 Difference]: Start difference. First operand has 58 states, 57 states have (on average 2.1052631578947367) internal successors, (120), 57 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:56,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:56,013 INFO L93 Difference]: Finished difference Result 54 states and 109 transitions. [2021-08-29 22:25:56,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 22:25:56,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-08-29 22:25:56,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:56,019 INFO L225 Difference]: With dead ends: 54 [2021-08-29 22:25:56,020 INFO L226 Difference]: Without dead ends: 54 [2021-08-29 22:25:56,020 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.12ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 22:25:56,023 INFO L928 BasicCegarLoop]: 8 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.31ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:56,024 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 13 Invalid, 9 Unknown, 0 Unchecked, 0.34ms Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 11.31ms Time] [2021-08-29 22:25:56,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-08-29 22:25:56,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-08-29 22:25:56,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 2.056603773584906) internal successors, (109), 53 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:56,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 109 transitions. [2021-08-29 22:25:56,052 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 109 transitions. Word has length 6 [2021-08-29 22:25:56,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:56,053 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 109 transitions. [2021-08-29 22:25:56,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:56,054 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 109 transitions. [2021-08-29 22:25:56,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-29 22:25:56,056 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:56,056 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:56,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 22:25:56,057 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-29 22:25:56,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:56,059 INFO L82 PathProgramCache]: Analyzing trace with hash -2031139743, now seen corresponding path program 1 times [2021-08-29 22:25:56,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:56,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326225386] [2021-08-29 22:25:56,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:56,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:56,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:56,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326225386] [2021-08-29 22:25:56,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326225386] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:56,147 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:56,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 22:25:56,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479286487] [2021-08-29 22:25:56,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:25:56,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:56,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:25:56,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:25:56,148 INFO L87 Difference]: Start difference. First operand 54 states and 109 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:56,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:56,178 INFO L93 Difference]: Finished difference Result 69 states and 134 transitions. [2021-08-29 22:25:56,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 22:25:56,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-08-29 22:25:56,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:56,179 INFO L225 Difference]: With dead ends: 69 [2021-08-29 22:25:56,180 INFO L226 Difference]: Without dead ends: 51 [2021-08-29 22:25:56,180 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.02ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:25:56,182 INFO L928 BasicCegarLoop]: 8 mSDtfsCounter, 18 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.37ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.74ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:56,182 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 18 Invalid, 18 Unknown, 0 Unchecked, 0.37ms Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 16.74ms Time] [2021-08-29 22:25:56,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-08-29 22:25:56,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-08-29 22:25:56,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.98) internal successors, (99), 50 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:56,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 99 transitions. [2021-08-29 22:25:56,191 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 99 transitions. Word has length 7 [2021-08-29 22:25:56,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:56,192 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 99 transitions. [2021-08-29 22:25:56,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:56,192 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 99 transitions. [2021-08-29 22:25:56,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 22:25:56,193 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:56,193 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:56,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 22:25:56,194 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-29 22:25:56,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:56,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1459155644, now seen corresponding path program 1 times [2021-08-29 22:25:56,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:56,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843214992] [2021-08-29 22:25:56,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:56,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:56,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:56,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:56,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843214992] [2021-08-29 22:25:56,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843214992] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:56,229 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:56,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 22:25:56,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788704447] [2021-08-29 22:25:56,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 22:25:56,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:56,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 22:25:56,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-29 22:25:56,230 INFO L87 Difference]: Start difference. First operand 51 states and 99 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:56,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:56,243 INFO L93 Difference]: Finished difference Result 60 states and 111 transitions. [2021-08-29 22:25:56,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 22:25:56,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-29 22:25:56,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:56,244 INFO L225 Difference]: With dead ends: 60 [2021-08-29 22:25:56,244 INFO L226 Difference]: Without dead ends: 36 [2021-08-29 22:25:56,244 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.15ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:25:56,245 INFO L928 BasicCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.27ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.68ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:56,245 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 16 Invalid, 15 Unknown, 0 Unchecked, 0.27ms Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 7.68ms Time] [2021-08-29 22:25:56,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-08-29 22:25:56,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-08-29 22:25:56,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.8) internal successors, (63), 35 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:56,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 63 transitions. [2021-08-29 22:25:56,248 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 63 transitions. Word has length 8 [2021-08-29 22:25:56,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:56,248 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 63 transitions. [2021-08-29 22:25:56,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:56,248 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2021-08-29 22:25:56,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-29 22:25:56,249 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 22:25:56,249 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 22:25:56,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 22:25:56,249 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-29 22:25:56,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 22:25:56,249 INFO L82 PathProgramCache]: Analyzing trace with hash 581783128, now seen corresponding path program 1 times [2021-08-29 22:25:56,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 22:25:56,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644526024] [2021-08-29 22:25:56,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 22:25:56,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 22:25:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 22:25:56,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 22:25:56,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 22:25:56,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644526024] [2021-08-29 22:25:56,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644526024] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 22:25:56,290 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 22:25:56,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 22:25:56,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138287217] [2021-08-29 22:25:56,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 22:25:56,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 22:25:56,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 22:25:56,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-29 22:25:56,291 INFO L87 Difference]: Start difference. First operand 36 states and 63 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:56,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 22:25:56,299 INFO L93 Difference]: Finished difference Result 30 states and 50 transitions. [2021-08-29 22:25:56,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 22:25:56,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-08-29 22:25:56,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 22:25:56,300 INFO L225 Difference]: With dead ends: 30 [2021-08-29 22:25:56,300 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 22:25:56,300 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.18ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-29 22:25:56,301 INFO L928 BasicCegarLoop]: 6 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.22ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.37ms IncrementalHoareTripleChecker+Time [2021-08-29 22:25:56,301 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 9 Invalid, 9 Unknown, 0 Unchecked, 0.22ms Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 4.37ms Time] [2021-08-29 22:25:56,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 22:25:56,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 22:25:56,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:56,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 22:25:56,302 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2021-08-29 22:25:56,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 22:25:56,302 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 22:25:56,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 22:25:56,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 22:25:56,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 22:25:56,304 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2021-08-29 22:25:56,304 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2021-08-29 22:25:56,305 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2021-08-29 22:25:56,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-29 22:25:56,309 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-29 22:25:56,309 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 22:25:56,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 10:25:56 BasicIcfg [2021-08-29 22:25:56,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 22:25:56,313 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 22:25:56,313 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 22:25:56,314 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 22:25:56,314 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:25:53" (3/4) ... [2021-08-29 22:25:56,315 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 22:25:56,321 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-08-29 22:25:56,321 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-08-29 22:25:56,324 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-08-29 22:25:56,324 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 22:25:56,324 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 22:25:56,325 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 22:25:56,343 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 22:25:56,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 22:25:56,344 INFO L158 Benchmark]: Toolchain (without parser) took 3334.43ms. Allocated memory was 56.6MB in the beginning and 88.1MB in the end (delta: 31.5MB). Free memory was 32.9MB in the beginning and 39.8MB in the end (delta: -6.9MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2021-08-29 22:25:56,344 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory was 38.8MB in the beginning and 38.7MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 22:25:56,345 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.51ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 32.7MB in the beginning and 47.3MB in the end (delta: -14.6MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-08-29 22:25:56,345 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.04ms. Allocated memory is still 73.4MB. Free memory was 47.1MB in the beginning and 45.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 22:25:56,345 INFO L158 Benchmark]: Boogie Preprocessor took 14.29ms. Allocated memory is still 73.4MB. Free memory was 45.3MB in the beginning and 44.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 22:25:56,345 INFO L158 Benchmark]: RCFGBuilder took 241.60ms. Allocated memory is still 73.4MB. Free memory was 43.9MB in the beginning and 50.0MB in the end (delta: -6.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2021-08-29 22:25:56,346 INFO L158 Benchmark]: TraceAbstraction took 2577.92ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 49.4MB in the beginning and 42.4MB in the end (delta: 6.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2021-08-29 22:25:56,346 INFO L158 Benchmark]: Witness Printer took 30.35ms. Allocated memory is still 88.1MB. Free memory was 42.4MB in the beginning and 39.8MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 22:25:56,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory was 38.8MB in the beginning and 38.7MB in the end (delta: 37.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.51ms. Allocated memory was 56.6MB in the beginning and 73.4MB in the end (delta: 16.8MB). Free memory was 32.7MB in the beginning and 47.3MB in the end (delta: -14.6MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.04ms. Allocated memory is still 73.4MB. Free memory was 47.1MB in the beginning and 45.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.29ms. Allocated memory is still 73.4MB. Free memory was 45.3MB in the beginning and 44.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 241.60ms. Allocated memory is still 73.4MB. Free memory was 43.9MB in the beginning and 50.0MB in the end (delta: -6.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2577.92ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 49.4MB in the beginning and 42.4MB in the end (delta: 6.9MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Witness Printer took 30.35ms. Allocated memory is still 88.1MB. Free memory was 42.4MB in the beginning and 39.8MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1883.14ms, 72 PlacesBefore, 22 PlacesAfterwards, 67 TransitionsBefore, 15 TransitionsAfterwards, 756 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 62 TotalNumberOfCompositions, 1496 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 955, positive: 882, positive conditional: 0, positive unconditional: 882, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 537, positive: 514, positive conditional: 0, positive unconditional: 514, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 537, positive: 511, positive conditional: 0, positive unconditional: 511, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 26, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 59, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 955, positive: 368, positive conditional: 0, positive unconditional: 368, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 537, unknown conditional: 0, unknown unconditional: 537] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 82 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 2480.36ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 8.16ms, AutomataDifference: 114.75ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 1936.68ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 40.10ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 31.75ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 29 mSDtfsCounter, 44 mSolverCounterSat, 1.20ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.48ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 30.75ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.31ms SsaConstructionTime, 96.47ms SatisfiabilityAnalysisTime, 164.21ms InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-29 22:25:56,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...