./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 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-divine/ring_1w1r-1.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 91b38ad7ab67d81aafbb5fd4f68820f19b8e6fc7 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 00:38:24,527 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 00:38:24,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 00:38:24,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 00:38:24,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 00:38:24,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 00:38:24,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 00:38:24,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 00:38:24,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 00:38:24,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 00:38:24,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 00:38:24,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 00:38:24,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 00:38:24,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 00:38:24,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 00:38:24,640 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 00:38:24,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 00:38:24,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 00:38:24,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 00:38:24,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 00:38:24,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 00:38:24,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 00:38:24,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 00:38:24,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 00:38:24,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 00:38:24,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 00:38:24,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 00:38:24,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 00:38:24,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 00:38:24,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 00:38:24,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 00:38:24,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 00:38:24,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 00:38:24,691 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 00:38:24,692 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 00:38:24,693 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 00:38:24,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 00:38:24,694 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 00:38:24,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 00:38:24,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 00:38:24,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 00:38:24,702 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-26 00:38:24,761 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 00:38:24,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 00:38:24,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 00:38:24,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 00:38:24,766 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 00:38:24,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 00:38:24,767 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 00:38:24,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 00:38:24,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 00:38:24,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 00:38:24,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 00:38:24,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 00:38:24,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 00:38:24,772 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 00:38:24,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 00:38:24,772 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 00:38:24,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 00:38:24,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 00:38:24,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 00:38:24,773 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 00:38:24,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 00:38:24,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 00:38:24,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 00:38:24,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 00:38:24,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 00:38:24,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 00:38:24,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 00:38:24,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 00:38:24,775 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 00:38:24,775 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91b38ad7ab67d81aafbb5fd4f68820f19b8e6fc7 [2020-10-26 00:38:25,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 00:38:25,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 00:38:25,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 00:38:25,297 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 00:38:25,298 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 00:38:25,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2020-10-26 00:38:25,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90fba7a65/366b7062fc584abe98acd25885a0de77/FLAG84c6b5c64 [2020-10-26 00:38:26,142 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 00:38:26,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-divine/ring_1w1r-1.i [2020-10-26 00:38:26,165 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90fba7a65/366b7062fc584abe98acd25885a0de77/FLAG84c6b5c64 [2020-10-26 00:38:26,386 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90fba7a65/366b7062fc584abe98acd25885a0de77 [2020-10-26 00:38:26,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 00:38:26,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 00:38:26,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 00:38:26,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 00:38:26,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 00:38:26,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 12:38:26" (1/1) ... [2020-10-26 00:38:26,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a2beed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:38:26, skipping insertion in model container [2020-10-26 00:38:26,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 12:38:26" (1/1) ... [2020-10-26 00:38:26,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 00:38:26,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 00:38:26,654 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-26 00:38:27,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 00:38:27,134 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 00:38:27,151 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-26 00:38:27,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 00:38:27,331 INFO L208 MainTranslator]: Completed translation [2020-10-26 00:38:27,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:38:27 WrapperNode [2020-10-26 00:38:27,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 00:38:27,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 00:38:27,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 00:38:27,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 00:38:27,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:38:27" (1/1) ... [2020-10-26 00:38:27,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:38:27" (1/1) ... [2020-10-26 00:38:27,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 00:38:27,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 00:38:27,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 00:38:27,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 00:38:27,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:38:27" (1/1) ... [2020-10-26 00:38:27,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:38:27" (1/1) ... [2020-10-26 00:38:27,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:38:27" (1/1) ... [2020-10-26 00:38:27,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:38:27" (1/1) ... [2020-10-26 00:38:27,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:38:27" (1/1) ... [2020-10-26 00:38:27,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:38:27" (1/1) ... [2020-10-26 00:38:27,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:38:27" (1/1) ... [2020-10-26 00:38:27,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 00:38:27,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 00:38:27,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 00:38:27,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 00:38:27,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:38:27" (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 [2020-10-26 00:38:27,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 00:38:27,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 00:38:27,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 00:38:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 00:38:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 00:38:27,562 INFO L130 BoogieDeclarations]: Found specification of procedure reader_nowait_fn [2020-10-26 00:38:27,562 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_nowait_fn [2020-10-26 00:38:27,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 00:38:27,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 00:38:27,566 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-26 00:38:28,180 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 00:38:28,181 INFO L298 CfgBuilder]: Removed 23 assume(true) statements. [2020-10-26 00:38:28,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:38:28 BoogieIcfgContainer [2020-10-26 00:38:28,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 00:38:28,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 00:38:28,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 00:38:28,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 00:38:28,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 12:38:26" (1/3) ... [2020-10-26 00:38:28,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae7c940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 12:38:28, skipping insertion in model container [2020-10-26 00:38:28,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 12:38:27" (2/3) ... [2020-10-26 00:38:28,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae7c940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 12:38:28, skipping insertion in model container [2020-10-26 00:38:28,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:38:28" (3/3) ... [2020-10-26 00:38:28,192 INFO L111 eAbstractionObserver]: Analyzing ICFG ring_1w1r-1.i [2020-10-26 00:38:28,205 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-26 00:38:28,205 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 00:38:28,211 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-26 00:38:28,213 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-26 00:38:28,247 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,247 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,247 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,247 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,248 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,248 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,248 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,248 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,248 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,249 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~last~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,249 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,249 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,249 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,250 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~last~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,250 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~last~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,250 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,250 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,250 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,250 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,251 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,251 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,251 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,251 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,251 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,252 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,252 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,252 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,252 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,252 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,253 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,253 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,253 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,253 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,253 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,254 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,254 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,254 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,254 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,254 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,254 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,255 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,255 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,255 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,255 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,255 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,256 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,256 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,256 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,256 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,256 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,257 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,257 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,257 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,257 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,257 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,257 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,258 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,258 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,258 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,258 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,258 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,259 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,259 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,259 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,259 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,259 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,259 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,260 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,260 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,260 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,260 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,260 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,261 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,261 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,261 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,261 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,261 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,262 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,262 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,262 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,262 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,262 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,263 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,263 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,263 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,263 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,263 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,264 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,264 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,264 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,264 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,264 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,265 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,265 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,265 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,265 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,266 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~last~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,266 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,266 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~last~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,266 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,266 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,267 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,267 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~last~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,267 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,267 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~pre21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,268 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,268 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,268 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,268 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,268 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~pre21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,271 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,271 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,271 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,272 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,272 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,272 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,272 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~val~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,272 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,273 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~r~2.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,273 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,273 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,273 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~ret20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,273 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,274 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_reach_error_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,274 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,274 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~last~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,274 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,274 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,275 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,275 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,275 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,275 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,276 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,276 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_#t~pre21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,276 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,279 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,279 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,280 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,280 WARN L313 ript$VariableManager]: TermVariabe reader_nowait_fnThread1of1ForFork0_~r~2.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,280 WARN L313 ript$VariableManager]: TermVariabe |reader_nowait_fnThread1of1ForFork0_reach_error_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-26 00:38:28,287 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-10-26 00:38:28,304 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-26 00:38:28,341 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 00:38:28,342 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 00:38:28,342 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 00:38:28,342 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 00:38:28,342 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 00:38:28,343 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 00:38:28,343 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 00:38:28,343 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 00:38:28,359 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-26 00:38:28,361 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 136 transitions, 280 flow [2020-10-26 00:38:28,365 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 136 transitions, 280 flow [2020-10-26 00:38:28,367 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 128 places, 136 transitions, 280 flow [2020-10-26 00:38:28,445 INFO L129 PetriNetUnfolder]: 12/135 cut-off events. [2020-10-26 00:38:28,445 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-10-26 00:38:28,453 INFO L80 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 135 events. 12/135 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 268 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 102. Up to 3 conditions per place. [2020-10-26 00:38:28,459 INFO L116 LiptonReduction]: Number of co-enabled transitions 4752 [2020-10-26 00:38:28,739 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-26 00:38:31,440 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-26 00:38:32,892 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2020-10-26 00:38:33,082 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-26 00:38:33,219 INFO L131 LiptonReduction]: Checked pairs total: 7241 [2020-10-26 00:38:33,219 INFO L133 LiptonReduction]: Total number of compositions: 150 [2020-10-26 00:38:33,226 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 27 transitions, 62 flow [2020-10-26 00:38:33,240 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 94 states. [2020-10-26 00:38:33,243 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2020-10-26 00:38:33,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-26 00:38:33,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:38:33,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-26 00:38:33,250 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reader_nowait_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_nowait_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_nowait_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_nowait_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_nowait_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_nowait_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-26 00:38:33,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:38:33,257 INFO L82 PathProgramCache]: Analyzing trace with hash 17436406, now seen corresponding path program 1 times [2020-10-26 00:38:33,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:38:33,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752466506] [2020-10-26 00:38:33,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:38:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 00:38:33,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 00:38:33,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752466506] [2020-10-26 00:38:33,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 00:38:33,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-26 00:38:33,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920969694] [2020-10-26 00:38:33,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-26 00:38:33,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 00:38:33,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 00:38:33,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:38:33,520 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 3 states. [2020-10-26 00:38:33,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 00:38:33,572 INFO L93 Difference]: Finished difference Result 139 states and 289 transitions. [2020-10-26 00:38:33,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 00:38:33,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-26 00:38:33,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 00:38:33,596 INFO L225 Difference]: With dead ends: 139 [2020-10-26 00:38:33,596 INFO L226 Difference]: Without dead ends: 128 [2020-10-26 00:38:33,598 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 00:38:33,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-26 00:38:33,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 92. [2020-10-26 00:38:33,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-26 00:38:33,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 192 transitions. [2020-10-26 00:38:33,655 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 192 transitions. Word has length 4 [2020-10-26 00:38:33,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 00:38:33,656 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 192 transitions. [2020-10-26 00:38:33,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-26 00:38:33,656 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 192 transitions. [2020-10-26 00:38:33,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-26 00:38:33,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 00:38:33,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-26 00:38:33,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 00:38:33,658 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reader_nowait_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_nowait_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_nowait_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_nowait_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_nowait_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_nowait_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-26 00:38:33,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 00:38:33,659 INFO L82 PathProgramCache]: Analyzing trace with hash -242795617, now seen corresponding path program 1 times [2020-10-26 00:38:33,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 00:38:33,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908611980] [2020-10-26 00:38:33,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 00:38:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 00:38:33,710 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 00:38:33,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 00:38:33,769 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 00:38:33,809 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 00:38:33,809 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 00:38:33,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 00:38:33,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 12:38:33 BasicIcfg [2020-10-26 00:38:33,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 00:38:33,838 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 00:38:33,838 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 00:38:33,839 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 00:38:33,839 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 12:38:28" (3/4) ... [2020-10-26 00:38:33,842 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-26 00:38:33,892 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 00:38:33,893 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 00:38:33,895 INFO L168 Benchmark]: Toolchain (without parser) took 7502.78 ms. Allocated memory was 46.1 MB in the beginning and 121.6 MB in the end (delta: 75.5 MB). Free memory was 29.1 MB in the beginning and 58.9 MB in the end (delta: -29.8 MB). Peak memory consumption was 48.0 MB. Max. memory is 16.1 GB. [2020-10-26 00:38:33,896 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 37.7 MB. Free memory was 20.4 MB in the beginning and 20.3 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 00:38:33,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 933.48 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 28.5 MB in the beginning and 35.8 MB in the end (delta: -7.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2020-10-26 00:38:33,898 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.16 ms. Allocated memory is still 56.6 MB. Free memory was 35.8 MB in the beginning and 33.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:38:33,899 INFO L168 Benchmark]: Boogie Preprocessor took 41.29 ms. Allocated memory is still 56.6 MB. Free memory was 33.2 MB in the beginning and 31.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:38:33,900 INFO L168 Benchmark]: RCFGBuilder took 739.14 ms. Allocated memory is still 56.6 MB. Free memory was 31.6 MB in the beginning and 35.5 MB in the end (delta: -3.9 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2020-10-26 00:38:33,901 INFO L168 Benchmark]: TraceAbstraction took 5653.44 ms. Allocated memory was 56.6 MB in the beginning and 121.6 MB in the end (delta: 65.0 MB). Free memory was 34.9 MB in the beginning and 62.1 MB in the end (delta: -27.2 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. [2020-10-26 00:38:33,903 INFO L168 Benchmark]: Witness Printer took 54.75 ms. Allocated memory is still 121.6 MB. Free memory was 62.1 MB in the beginning and 58.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 00:38:33,907 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 37.7 MB. Free memory was 20.4 MB in the beginning and 20.3 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 933.48 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 28.5 MB in the beginning and 35.8 MB in the end (delta: -7.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.16 ms. Allocated memory is still 56.6 MB. Free memory was 35.8 MB in the beginning and 33.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.29 ms. Allocated memory is still 56.6 MB. Free memory was 33.2 MB in the beginning and 31.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 739.14 ms. Allocated memory is still 56.6 MB. Free memory was 31.6 MB in the beginning and 35.5 MB in the end (delta: -3.9 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5653.44 ms. Allocated memory was 56.6 MB in the beginning and 121.6 MB in the end (delta: 65.0 MB). Free memory was 34.9 MB in the beginning and 62.1 MB in the end (delta: -27.2 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. * Witness Printer took 54.75 ms. Allocated memory is still 121.6 MB. Free memory was 62.1 MB in the beginning and 58.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3458 VarBasedMoverChecksPositive, 106 VarBasedMoverChecksNegative, 39 SemBasedMoverChecksPositive, 67 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 122 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.8s, 128 PlacesBefore, 26 PlacesAfterwards, 136 TransitionsBefore, 27 TransitionsAfterwards, 4752 CoEnabledTransitionPairs, 8 FixpointIterations, 29 TrivialSequentialCompositions, 88 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 26 ConcurrentYvCompositions, 7 ChoiceCompositions, 150 TotalNumberOfCompositions, 7241 MoverChecksTotal - CounterExampleResult [Line: 803]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L864] 0 pthread_t reader; [L865] 0 Ring r; [L823] EXPR 0 r->writer = 0 [L823] 0 r->reader = r->writer = 0 [L867] FCALL, FORK 0 pthread_create( &reader, ((void *)0), &reader_nowait_fn, &r ) [L851] 1 Ring *r = arg; [L852] 1 long val = 0, last = 0, i = 0; [L853] COND TRUE 1 i < 8 [L815] EXPR 1 r->reader [L815] EXPR 1 r->q[ r->reader ] [L815] 1 long x = r->q[ r->reader ]; [L816] EXPR 1 r->reader [L816] 1 r->reader = (r->reader + 1) % 4 [L817] 1 return x; [L854] 1 val = ring_dequeue( r ) [L855] 1 !(val == last + 1) ? reach_error() : (void)0 [L803] COND FALSE 1 !(0) [L803] 1 __assert_fail ("0", "ring.h", 6, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 125 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 32 SDtfs, 14 SDslu, 18 SDs, 0 SdLazy, 7 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred 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, 1 MinimizatonAttempts, 36 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...