./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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/goblint-regression/28-race_reach_45-escape_racing.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 f1df5b5a20d50f307128a761c04a5165b8cf7856 .................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.1-dev-20ed64e [2021-08-26 15:03:21,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 15:03:21,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 15:03:21,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 15:03:21,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 15:03:21,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 15:03:21,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 15:03:21,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 15:03:21,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 15:03:21,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 15:03:21,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 15:03:21,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 15:03:21,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 15:03:21,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 15:03:21,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 15:03:21,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 15:03:21,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 15:03:21,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 15:03:21,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 15:03:21,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 15:03:21,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 15:03:21,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 15:03:21,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 15:03:21,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 15:03:21,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 15:03:21,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 15:03:21,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 15:03:21,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 15:03:21,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 15:03:21,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 15:03:21,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 15:03:21,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 15:03:21,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 15:03:21,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 15:03:21,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 15:03:21,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 15:03:21,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 15:03:21,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 15:03:21,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 15:03:21,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 15:03:21,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 15:03:21,445 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 15:03:21,469 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 15:03:21,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 15:03:21,470 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 15:03:21,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 15:03:21,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 15:03:21,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 15:03:21,472 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 15:03:21,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 15:03:21,472 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 15:03:21,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 15:03:21,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 15:03:21,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 15:03:21,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 15:03:21,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 15:03:21,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 15:03:21,479 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 15:03:21,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 15:03:21,479 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 15:03:21,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 15:03:21,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 15:03:21,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 15:03:21,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 15:03:21,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 15:03:21,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 15:03:21,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 15:03:21,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 15:03:21,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 15:03:21,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 15:03:21,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 15:03:21,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 15:03:21,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1df5b5a20d50f307128a761c04a5165b8cf7856 [2021-08-26 15:03:21,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 15:03:21,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 15:03:21,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 15:03:21,724 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 15:03:21,724 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 15:03:21,725 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2021-08-26 15:03:21,778 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97d2e21bc/42327a8113e14a7381046ca4b5ab1d7a/FLAG8859522d5 [2021-08-26 15:03:22,204 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 15:03:22,205 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2021-08-26 15:03:22,217 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97d2e21bc/42327a8113e14a7381046ca4b5ab1d7a/FLAG8859522d5 [2021-08-26 15:03:22,577 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97d2e21bc/42327a8113e14a7381046ca4b5ab1d7a [2021-08-26 15:03:22,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 15:03:22,580 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 15:03:22,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 15:03:22,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 15:03:22,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 15:03:22,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:03:22" (1/1) ... [2021-08-26 15:03:22,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16ef4587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:03:22, skipping insertion in model container [2021-08-26 15:03:22,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 03:03:22" (1/1) ... [2021-08-26 15:03:22,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 15:03:22,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 15:03:22,837 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/goblint-regression/28-race_reach_45-escape_racing.i[29913,29926] [2021-08-26 15:03:22,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 15:03:22,855 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 15:03:22,888 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/goblint-regression/28-race_reach_45-escape_racing.i[29913,29926] [2021-08-26 15:03:22,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 15:03:22,938 INFO L208 MainTranslator]: Completed translation [2021-08-26 15:03:22,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:03:22 WrapperNode [2021-08-26 15:03:22,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 15:03:22,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 15:03:22,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 15:03:22,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 15:03:22,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:03:22" (1/1) ... [2021-08-26 15:03:22,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:03:22" (1/1) ... [2021-08-26 15:03:22,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 15:03:22,991 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 15:03:22,991 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 15:03:22,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 15:03:22,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:03:22" (1/1) ... [2021-08-26 15:03:22,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:03:22" (1/1) ... [2021-08-26 15:03:23,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:03:22" (1/1) ... [2021-08-26 15:03:23,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:03:22" (1/1) ... [2021-08-26 15:03:23,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:03:22" (1/1) ... [2021-08-26 15:03:23,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:03:22" (1/1) ... [2021-08-26 15:03:23,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:03:22" (1/1) ... [2021-08-26 15:03:23,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 15:03:23,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 15:03:23,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 15:03:23,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 15:03:23,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:03:22" (1/1) ... [2021-08-26 15:03:23,037 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 15:03:23,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 15:03:23,052 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) [2021-08-26 15:03:23,054 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 [2021-08-26 15:03:23,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 15:03:23,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 15:03:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-08-26 15:03:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 15:03:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-08-26 15:03:23,098 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-08-26 15:03:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 15:03:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 15:03:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 15:03:23,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 15:03:23,100 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-26 15:03:23,461 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 15:03:23,461 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-08-26 15:03:23,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:03:23 BoogieIcfgContainer [2021-08-26 15:03:23,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 15:03:23,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 15:03:23,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 15:03:23,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 15:03:23,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 03:03:22" (1/3) ... [2021-08-26 15:03:23,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd891a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:03:23, skipping insertion in model container [2021-08-26 15:03:23,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 03:03:22" (2/3) ... [2021-08-26 15:03:23,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd891a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 03:03:23, skipping insertion in model container [2021-08-26 15:03:23,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:03:23" (3/3) ... [2021-08-26 15:03:23,468 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2021-08-26 15:03:23,472 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-26 15:03:23,472 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 15:03:23,472 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 15:03:23,472 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-26 15:03:23,502 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,502 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,502 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,502 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,503 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,503 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,503 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,503 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,504 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,505 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,505 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,505 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,505 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,505 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,505 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,505 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,506 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,507 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,507 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,507 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,507 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,508 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,508 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,509 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,509 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,509 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,509 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,509 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,510 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,510 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,512 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,512 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,512 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,513 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,514 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,514 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,514 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,514 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,514 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,514 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,514 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,514 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,514 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,514 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,514 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,515 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,515 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,515 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,515 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,515 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,515 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,515 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,515 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,515 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,515 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,516 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,516 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,516 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,516 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,516 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,516 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,516 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,516 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,516 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,517 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,517 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,517 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,517 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,517 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,517 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,517 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,518 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,521 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,521 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,521 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,521 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,521 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,521 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,521 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,521 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,522 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,522 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,522 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,522 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,522 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-26 15:03:23,530 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-08-26 15:03:23,561 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 15:03:23,564 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 [2021-08-26 15:03:23,565 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-26 15:03:23,573 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-08-26 15:03:23,579 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 99 transitions, 206 flow [2021-08-26 15:03:23,581 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 99 transitions, 206 flow [2021-08-26 15:03:23,582 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 99 transitions, 206 flow [2021-08-26 15:03:23,616 INFO L129 PetriNetUnfolder]: 9/98 cut-off events. [2021-08-26 15:03:23,616 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-08-26 15:03:23,619 INFO L84 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 98 events. 9/98 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 155 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2021-08-26 15:03:23,621 INFO L116 LiptonReduction]: Number of co-enabled transitions 1452 [2021-08-26 15:03:28,337 INFO L131 LiptonReduction]: Checked pairs total: 2601 [2021-08-26 15:03:28,337 INFO L133 LiptonReduction]: Total number of compositions: 88 [2021-08-26 15:03:28,343 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 29 transitions, 66 flow [2021-08-26 15:03:28,351 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 62 states, 60 states have (on average 2.533333333333333) internal successors, (152), 61 states have internal predecessors, (152), 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) [2021-08-26 15:03:28,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 60 states have (on average 2.533333333333333) internal successors, (152), 61 states have internal predecessors, (152), 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) [2021-08-26 15:03:28,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-26 15:03:28,355 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:03:28,356 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-26 15:03:28,356 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-08-26 15:03:28,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:03:28,359 INFO L82 PathProgramCache]: Analyzing trace with hash 363811535, now seen corresponding path program 1 times [2021-08-26 15:03:28,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:03:28,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527505884] [2021-08-26 15:03:28,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:03:28,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:03:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:03:28,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:03:28,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:03:28,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527505884] [2021-08-26 15:03:28,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527505884] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:03:28,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:03:28,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-26 15:03:28,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796765813] [2021-08-26 15:03:28,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 15:03:28,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:03:28,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 15:03:28,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 15:03:28,551 INFO L87 Difference]: Start difference. First operand has 62 states, 60 states have (on average 2.533333333333333) internal successors, (152), 61 states have internal predecessors, (152), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-08-26 15:03:28,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:03:28,578 INFO L93 Difference]: Finished difference Result 70 states and 114 transitions. [2021-08-26 15:03:28,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 15:03:28,579 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-08-26 15:03:28,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:03:28,585 INFO L225 Difference]: With dead ends: 70 [2021-08-26 15:03:28,585 INFO L226 Difference]: Without dead ends: 38 [2021-08-26 15:03:28,586 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 15:03:28,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-08-26 15:03:28,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-08-26 15:03:28,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.6216216216216217) internal successors, (60), 37 states have internal predecessors, (60), 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) [2021-08-26 15:03:28,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2021-08-26 15:03:28,610 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 5 [2021-08-26 15:03:28,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:03:28,610 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2021-08-26 15:03:28,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-08-26 15:03:28,610 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2021-08-26 15:03:28,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-26 15:03:28,611 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:03:28,612 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:03:28,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 15:03:28,612 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-08-26 15:03:28,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:03:28,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1664007060, now seen corresponding path program 1 times [2021-08-26 15:03:28,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:03:28,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545017455] [2021-08-26 15:03:28,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:03:28,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:03:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 15:03:28,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 15:03:28,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 15:03:28,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545017455] [2021-08-26 15:03:28,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545017455] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 15:03:28,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 15:03:28,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 15:03:28,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124006400] [2021-08-26 15:03:28,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 15:03:28,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 15:03:28,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 15:03:28,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:03:28,777 INFO L87 Difference]: Start difference. First operand 38 states and 60 transitions. Second operand has 5 states, 5 states have (on average 1.8) 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) [2021-08-26 15:03:28,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 15:03:28,809 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2021-08-26 15:03:28,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 15:03:28,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) 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 [2021-08-26 15:03:28,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 15:03:28,810 INFO L225 Difference]: With dead ends: 33 [2021-08-26 15:03:28,810 INFO L226 Difference]: Without dead ends: 30 [2021-08-26 15:03:28,811 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 15:03:28,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-08-26 15:03:28,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2021-08-26 15:03:28,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 27 states have internal predecessors, (38), 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) [2021-08-26 15:03:28,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2021-08-26 15:03:28,813 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 9 [2021-08-26 15:03:28,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 15:03:28,814 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2021-08-26 15:03:28,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) 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) [2021-08-26 15:03:28,814 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2021-08-26 15:03:28,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-26 15:03:28,814 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 15:03:28,815 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 15:03:28,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 15:03:28,815 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-08-26 15:03:28,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 15:03:28,815 INFO L82 PathProgramCache]: Analyzing trace with hash -45233045, now seen corresponding path program 1 times [2021-08-26 15:03:28,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 15:03:28,816 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30655173] [2021-08-26 15:03:28,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 15:03:28,816 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 15:03:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 15:03:28,837 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 15:03:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 15:03:28,869 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 15:03:28,869 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 15:03:28,869 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 15:03:28,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-26 15:03:28,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 15:03:28,874 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-26 15:03:28,874 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 15:03:28,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 03:03:28 BasicIcfg [2021-08-26 15:03:28,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 15:03:28,891 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 15:03:28,891 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 15:03:28,891 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 15:03:28,892 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 03:03:23" (3/4) ... [2021-08-26 15:03:28,893 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-26 15:03:28,934 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 15:03:28,934 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 15:03:28,936 INFO L168 Benchmark]: Toolchain (without parser) took 6354.79 ms. Allocated memory was 56.6 MB in the beginning and 157.3 MB in the end (delta: 100.7 MB). Free memory was 33.1 MB in the beginning and 72.2 MB in the end (delta: -39.1 MB). Peak memory consumption was 62.5 MB. Max. memory is 16.1 GB. [2021-08-26 15:03:28,936 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 56.6 MB. Free memory was 37.8 MB in the beginning and 37.7 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 15:03:28,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.82 ms. Allocated memory is still 56.6 MB. Free memory was 32.8 MB in the beginning and 30.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 15:03:28,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.35 ms. Allocated memory is still 56.6 MB. Free memory was 30.1 MB in the beginning and 28.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 15:03:28,938 INFO L168 Benchmark]: Boogie Preprocessor took 35.89 ms. Allocated memory is still 56.6 MB. Free memory was 28.2 MB in the beginning and 26.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 15:03:28,941 INFO L168 Benchmark]: RCFGBuilder took 435.27 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 26.7 MB in the beginning and 49.4 MB in the end (delta: -22.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2021-08-26 15:03:28,941 INFO L168 Benchmark]: TraceAbstraction took 5426.67 ms. Allocated memory was 73.4 MB in the beginning and 157.3 MB in the end (delta: 83.9 MB). Free memory was 48.8 MB in the beginning and 75.4 MB in the end (delta: -26.5 MB). Peak memory consumption was 56.8 MB. Max. memory is 16.1 GB. [2021-08-26 15:03:28,942 INFO L168 Benchmark]: Witness Printer took 43.40 ms. Allocated memory is still 157.3 MB. Free memory was 75.4 MB in the beginning and 72.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 15:03:28,944 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 56.6 MB. Free memory was 37.8 MB in the beginning and 37.7 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 344.82 ms. Allocated memory is still 56.6 MB. Free memory was 32.8 MB in the beginning and 30.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.35 ms. Allocated memory is still 56.6 MB. Free memory was 30.1 MB in the beginning and 28.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 35.89 ms. Allocated memory is still 56.6 MB. Free memory was 28.2 MB in the beginning and 26.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 435.27 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 26.7 MB in the beginning and 49.4 MB in the end (delta: -22.7 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5426.67 ms. Allocated memory was 73.4 MB in the beginning and 157.3 MB in the end (delta: 83.9 MB). Free memory was 48.8 MB in the beginning and 75.4 MB in the end (delta: -26.5 MB). Peak memory consumption was 56.8 MB. Max. memory is 16.1 GB. * Witness Printer took 43.40 ms. Allocated memory is still 157.3 MB. Free memory was 75.4 MB in the beginning and 72.2 MB in the end (delta: 3.2 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 Lipton Reduction Statistics: ReductionTime: 4756.4ms, 94 PlacesBefore, 25 PlacesAfterwards, 99 TransitionsBefore, 29 TransitionsAfterwards, 1452 CoEnabledTransitionPairs, 6 FixpointIterations, 39 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 88 TotalNumberOfCompositions, 2601 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1425, positive: 1315, positive conditional: 0, positive unconditional: 1315, negative: 110, negative conditional: 0, negative unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1033, positive: 991, positive conditional: 0, positive unconditional: 991, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1033, positive: 918, positive conditional: 0, positive unconditional: 918, negative: 115, negative conditional: 0, negative unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 115, positive: 73, positive conditional: 0, positive unconditional: 73, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 178, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 120, negative conditional: 0, negative unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1425, positive: 324, positive conditional: 0, positive unconditional: 324, negative: 68, negative conditional: 0, negative unconditional: 68, unknown: 1033, unknown conditional: 0, unknown unconditional: 1033] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 63, Positive conditional cache size: 0, Positive unconditional cache size: 63, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 684]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L689] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L690] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L691] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L700] 0 pthread_t id; [L701] 0 int i = 0; [L702] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [__global_lock={7:0}, arg={9:0}, mutex1={11:0}, mutex2={3:0}] [L693] 1 int *p = (int *) arg; [L695] EXPR 1 \read(*p) [L695] 1 (*p)++ [L704] 0 \read(i) [L684] COND TRUE 0 !(cond) [L684] 0 reach_error() VAL [__global_lock={7:0}, arg={9:0}, arg={9:0}, mutex1={11:0}, mutex2={3:0}, p={9:0}] - UnprovableResult [Line: 702]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 120 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 5312.9ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 5.4ms, AutomataDifference: 83.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4786.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 25 SDtfs, 22 SDslu, 13 SDs, 0 SdLazy, 32 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 29.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 15.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 16.4ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.6ms SsaConstructionTime, 72.6ms SatisfiabilityAnalysisTime, 198.2ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 110 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2021-08-26 15:03:28,981 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...