./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 997cd7c3 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-997cd7c-m [2021-09-22 15:13:21,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-09-22 15:13:21,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-09-22 15:13:21,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-09-22 15:13:21,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-09-22 15:13:21,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-09-22 15:13:21,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-09-22 15:13:21,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-09-22 15:13:21,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-09-22 15:13:21,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-09-22 15:13:21,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-09-22 15:13:21,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-09-22 15:13:21,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-09-22 15:13:21,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-09-22 15:13:21,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-09-22 15:13:21,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-09-22 15:13:21,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-09-22 15:13:21,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-09-22 15:13:21,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-09-22 15:13:21,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-09-22 15:13:21,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-09-22 15:13:21,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-09-22 15:13:21,894 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-09-22 15:13:21,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-09-22 15:13:21,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-09-22 15:13:21,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-09-22 15:13:21,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-09-22 15:13:21,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-09-22 15:13:21,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-09-22 15:13:21,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-09-22 15:13:21,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-09-22 15:13:21,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-09-22 15:13:21,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-09-22 15:13:21,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-09-22 15:13:21,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-09-22 15:13:21,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-09-22 15:13:21,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-09-22 15:13:21,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-09-22 15:13:21,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-09-22 15:13:21,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-09-22 15:13:21,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-09-22 15:13:21,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-09-22 15:13:21,952 INFO L113 SettingsManager]: Loading preferences was successful [2021-09-22 15:13:21,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-09-22 15:13:21,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-09-22 15:13:21,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-09-22 15:13:21,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-09-22 15:13:21,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-09-22 15:13:21,955 INFO L138 SettingsManager]: * Use SBE=true [2021-09-22 15:13:21,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-09-22 15:13:21,956 INFO L138 SettingsManager]: * sizeof long=4 [2021-09-22 15:13:21,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-09-22 15:13:21,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-09-22 15:13:21,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-09-22 15:13:21,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-09-22 15:13:21,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-09-22 15:13:21,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-09-22 15:13:21,958 INFO L138 SettingsManager]: * sizeof long double=12 [2021-09-22 15:13:21,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-09-22 15:13:21,958 INFO L138 SettingsManager]: * Use constant arrays=true [2021-09-22 15:13:21,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-09-22 15:13:21,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-09-22 15:13:21,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-09-22 15:13:21,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-09-22 15:13:21,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 15:13:21,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-09-22 15:13:21,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-09-22 15:13:21,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-09-22 15:13:21,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-09-22 15:13:21,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-09-22 15:13:21,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-09-22 15:13:21,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-09-22 15:13:21,961 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1df5b5a20d50f307128a761c04a5165b8cf7856 [2021-09-22 15:13:22,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-09-22 15:13:22,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-09-22 15:13:22,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-09-22 15:13:22,289 INFO L271 PluginConnector]: Initializing CDTParser... [2021-09-22 15:13:22,290 INFO L275 PluginConnector]: CDTParser initialized [2021-09-22 15:13:22,291 INFO L432 ainManager$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 [2021-09-22 15:13:22,347 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a7c30376/66bb1a2dc5e64805974bc5afc2eecc2c/FLAG7007dc4d7 [2021-09-22 15:13:22,823 INFO L306 CDTParser]: Found 1 translation units. [2021-09-22 15:13:22,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_45-escape_racing.i [2021-09-22 15:13:22,843 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a7c30376/66bb1a2dc5e64805974bc5afc2eecc2c/FLAG7007dc4d7 [2021-09-22 15:13:22,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a7c30376/66bb1a2dc5e64805974bc5afc2eecc2c [2021-09-22 15:13:22,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-09-22 15:13:22,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-09-22 15:13:22,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-09-22 15:13:22,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-09-22 15:13:22,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-09-22 15:13:22,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 03:13:22" (1/1) ... [2021-09-22 15:13:22,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13fb31b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 03:13:22, skipping insertion in model container [2021-09-22 15:13:22,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 03:13:22" (1/1) ... [2021-09-22 15:13:22,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-09-22 15:13:22,921 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-09-22 15:13:23,257 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] [2021-09-22 15:13:23,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 15:13:23,289 INFO L203 MainTranslator]: Completed pre-run [2021-09-22 15:13:23,325 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] [2021-09-22 15:13:23,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-09-22 15:13:23,367 INFO L208 MainTranslator]: Completed translation [2021-09-22 15:13:23,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 03:13:23 WrapperNode [2021-09-22 15:13:23,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-09-22 15:13:23,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-09-22 15:13:23,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-09-22 15:13:23,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-09-22 15:13:23,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 03:13:23" (1/1) ... [2021-09-22 15:13:23,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 03:13:23" (1/1) ... [2021-09-22 15:13:23,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-09-22 15:13:23,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-09-22 15:13:23,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-09-22 15:13:23,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-09-22 15:13:23,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 03:13:23" (1/1) ... [2021-09-22 15:13:23,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 03:13:23" (1/1) ... [2021-09-22 15:13:23,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 03:13:23" (1/1) ... [2021-09-22 15:13:23,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 03:13:23" (1/1) ... [2021-09-22 15:13:23,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 03:13:23" (1/1) ... [2021-09-22 15:13:23,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 03:13:23" (1/1) ... [2021-09-22 15:13:23,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 03:13:23" (1/1) ... [2021-09-22 15:13:23,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-09-22 15:13:23,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-09-22 15:13:23,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-09-22 15:13:23,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-09-22 15:13:23,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 03:13:23" (1/1) ... [2021-09-22 15:13:23,450 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-09-22 15:13:23,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-09-22 15:13:23,474 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) [2021-09-22 15:13:23,476 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 [2021-09-22 15:13:23,509 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-09-22 15:13:23,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-09-22 15:13:23,510 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-09-22 15:13:23,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-09-22 15:13:23,510 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-09-22 15:13:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-09-22 15:13:23,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-09-22 15:13:23,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-09-22 15:13:23,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-09-22 15:13:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-09-22 15:13:23,512 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-09-22 15:13:23,841 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-09-22 15:13:23,841 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-09-22 15:13:23,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 03:13:23 BoogieIcfgContainer [2021-09-22 15:13:23,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-09-22 15:13:23,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-09-22 15:13:23,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-09-22 15:13:23,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-09-22 15:13:23,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.09 03:13:22" (1/3) ... [2021-09-22 15:13:23,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35833045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 03:13:23, skipping insertion in model container [2021-09-22 15:13:23,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 03:13:23" (2/3) ... [2021-09-22 15:13:23,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35833045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 03:13:23, skipping insertion in model container [2021-09-22 15:13:23,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 03:13:23" (3/3) ... [2021-09-22 15:13:23,853 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2021-09-22 15:13:23,860 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-09-22 15:13:23,860 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-09-22 15:13:23,860 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-09-22 15:13:23,860 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-09-22 15:13:23,894 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,894 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,895 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,895 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,895 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,895 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,895 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,895 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,897 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,897 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,897 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,898 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,898 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,898 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,898 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,899 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,899 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,899 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,900 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,900 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,900 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,901 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,901 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,901 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,902 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,902 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,902 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,902 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,903 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,903 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,903 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,904 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,904 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,904 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,905 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,905 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,905 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,905 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,906 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,906 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,907 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,907 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,907 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,907 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,907 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,908 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,908 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,908 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,908 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,908 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,908 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,910 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,910 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,910 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,911 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,911 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,911 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,911 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,912 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,912 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,912 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,912 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,912 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,913 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,914 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,917 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,917 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,917 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,918 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,918 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,918 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,919 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,919 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,919 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,919 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,920 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,920 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,920 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-09-22 15:13:23,929 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-09-22 15:13:23,974 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-09-22 15:13:23,981 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 [2021-09-22 15:13:23,981 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-09-22 15:13:23,999 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-09-22 15:13:24,008 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 99 transitions, 206 flow [2021-09-22 15:13:24,012 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 99 transitions, 206 flow [2021-09-22 15:13:24,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 99 transitions, 206 flow [2021-09-22 15:13:24,074 INFO L129 PetriNetUnfolder]: 9/98 cut-off events. [2021-09-22 15:13:24,075 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-09-22 15:13:24,078 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. [2021-09-22 15:13:24,082 INFO L116 LiptonReduction]: Number of co-enabled transitions 1452 [2021-09-22 15:13:28,955 INFO L131 LiptonReduction]: Checked pairs total: 2601 [2021-09-22 15:13:28,955 INFO L133 LiptonReduction]: Total number of compositions: 88 [2021-09-22 15:13:28,963 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 29 transitions, 66 flow [2021-09-22 15:13:28,978 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) [2021-09-22 15:13:28,981 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) [2021-09-22 15:13:28,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-09-22 15:13:28,992 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 15:13:28,992 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-09-22 15:13:28,993 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-09-22 15:13:28,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 15:13:28,998 INFO L82 PathProgramCache]: Analyzing trace with hash 363811535, now seen corresponding path program 1 times [2021-09-22 15:13:29,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 15:13:29,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120208985] [2021-09-22 15:13:29,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 15:13:29,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 15:13:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 15:13:29,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 15:13:29,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 15:13:29,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120208985] [2021-09-22 15:13:29,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120208985] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 15:13:29,247 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 15:13:29,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-09-22 15:13:29,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605893481] [2021-09-22 15:13:29,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-09-22 15:13:29,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 15:13:29,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-09-22 15:13:29,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 15:13:29,269 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) [2021-09-22 15:13:29,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 15:13:29,296 INFO L93 Difference]: Finished difference Result 70 states and 114 transitions. [2021-09-22 15:13:29,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-09-22 15:13:29,297 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 [2021-09-22 15:13:29,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 15:13:29,303 INFO L225 Difference]: With dead ends: 70 [2021-09-22 15:13:29,303 INFO L226 Difference]: Without dead ends: 38 [2021-09-22 15:13:29,304 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-09-22 15:13:29,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-09-22 15:13:29,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-09-22 15:13:29,328 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) [2021-09-22 15:13:29,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2021-09-22 15:13:29,330 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 5 [2021-09-22 15:13:29,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 15:13:29,331 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2021-09-22 15:13:29,331 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) [2021-09-22 15:13:29,331 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2021-09-22 15:13:29,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-09-22 15:13:29,332 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 15:13:29,332 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 15:13:29,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-09-22 15:13:29,332 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-09-22 15:13:29,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 15:13:29,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1664007060, now seen corresponding path program 1 times [2021-09-22 15:13:29,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 15:13:29,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944795331] [2021-09-22 15:13:29,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 15:13:29,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 15:13:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-09-22 15:13:29,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-09-22 15:13:29,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-09-22 15:13:29,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944795331] [2021-09-22 15:13:29,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944795331] provided 1 perfect and 0 imperfect interpolant sequences [2021-09-22 15:13:29,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-09-22 15:13:29,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-09-22 15:13:29,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782924184] [2021-09-22 15:13:29,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-09-22 15:13:29,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-09-22 15:13:29,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-09-22 15:13:29,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 15:13:29,516 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) [2021-09-22 15:13:29,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-09-22 15:13:29,560 INFO L93 Difference]: Finished difference Result 33 states and 44 transitions. [2021-09-22 15:13:29,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-09-22 15:13:29,561 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 [2021-09-22 15:13:29,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-09-22 15:13:29,562 INFO L225 Difference]: With dead ends: 33 [2021-09-22 15:13:29,562 INFO L226 Difference]: Without dead ends: 30 [2021-09-22 15:13:29,563 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 12.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-09-22 15:13:29,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-09-22 15:13:29,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2021-09-22 15:13:29,568 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) [2021-09-22 15:13:29,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2021-09-22 15:13:29,570 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 9 [2021-09-22 15:13:29,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-09-22 15:13:29,570 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2021-09-22 15:13:29,570 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) [2021-09-22 15:13:29,571 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2021-09-22 15:13:29,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-09-22 15:13:29,571 INFO L504 BasicCegarLoop]: Found error trace [2021-09-22 15:13:29,572 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-09-22 15:13:29,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-09-22 15:13:29,572 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-09-22 15:13:29,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-09-22 15:13:29,573 INFO L82 PathProgramCache]: Analyzing trace with hash -45233045, now seen corresponding path program 1 times [2021-09-22 15:13:29,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-09-22 15:13:29,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944952528] [2021-09-22 15:13:29,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-09-22 15:13:29,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-09-22 15:13:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-22 15:13:29,615 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-09-22 15:13:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-09-22 15:13:29,655 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-09-22 15:13:29,655 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-09-22 15:13:29,656 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-09-22 15:13:29,659 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-09-22 15:13:29,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-09-22 15:13:29,666 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-09-22 15:13:29,666 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-09-22 15:13:29,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.09 03:13:29 BasicIcfg [2021-09-22 15:13:29,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-09-22 15:13:29,706 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-09-22 15:13:29,706 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-09-22 15:13:29,706 INFO L275 PluginConnector]: Witness Printer initialized [2021-09-22 15:13:29,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 03:13:23" (3/4) ... [2021-09-22 15:13:29,708 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-09-22 15:13:29,752 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-09-22 15:13:29,752 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-09-22 15:13:29,753 INFO L168 Benchmark]: Toolchain (without parser) took 6887.99 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 37.6 MB in the beginning and 48.2 MB in the end (delta: -10.6 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2021-09-22 15:13:29,754 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 60.8 MB. Free memory was 41.4 MB in the beginning and 41.3 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-09-22 15:13:29,754 INFO L168 Benchmark]: CACSL2BoogieTranslator took 501.05 ms. Allocated memory is still 60.8 MB. Free memory was 37.5 MB in the beginning and 33.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-09-22 15:13:29,754 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.00 ms. Allocated memory is still 60.8 MB. Free memory was 33.7 MB in the beginning and 31.8 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-09-22 15:13:29,755 INFO L168 Benchmark]: Boogie Preprocessor took 34.65 ms. Allocated memory is still 60.8 MB. Free memory was 31.8 MB in the beginning and 30.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-09-22 15:13:29,755 INFO L168 Benchmark]: RCFGBuilder took 399.74 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 30.3 MB in the beginning and 45.2 MB in the end (delta: -14.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-09-22 15:13:29,756 INFO L168 Benchmark]: TraceAbstraction took 5861.43 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 44.8 MB in the beginning and 51.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-09-22 15:13:29,756 INFO L168 Benchmark]: Witness Printer took 46.30 ms. Allocated memory is still 88.1 MB. Free memory was 51.1 MB in the beginning and 48.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-09-22 15:13:29,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 60.8 MB. Free memory was 41.4 MB in the beginning and 41.3 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 501.05 ms. Allocated memory is still 60.8 MB. Free memory was 37.5 MB in the beginning and 33.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.00 ms. Allocated memory is still 60.8 MB. Free memory was 33.7 MB in the beginning and 31.8 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.65 ms. Allocated memory is still 60.8 MB. Free memory was 31.8 MB in the beginning and 30.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 399.74 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 30.3 MB in the beginning and 45.2 MB in the end (delta: -14.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5861.43 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 44.8 MB in the beginning and 51.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Witness Printer took 46.30 ms. Allocated memory is still 88.1 MB. Free memory was 51.1 MB in the beginning and 48.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4943.8ms, 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: 176, positive: 77, positive conditional: 0, positive unconditional: 77, negative: 99, negative conditional: 0, negative unconditional: 99, 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: 5691.6ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 14.7ms, AutomataDifference: 98.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 4997.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 25 SDtfs, 22 SDslu, 13 SDs, 0 SdLazy, 32 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 38.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 19.3ms 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: 21.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.9ms SsaConstructionTime, 113.5ms SatisfiabilityAnalysisTime, 248.0ms 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! [2021-09-22 15:13:29,805 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...