./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d 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 ../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.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 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 00:06:18,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 00:06:18,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 00:06:18,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 00:06:18,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 00:06:18,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 00:06:18,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 00:06:18,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 00:06:18,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 00:06:18,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 00:06:18,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 00:06:18,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 00:06:18,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 00:06:18,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 00:06:18,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 00:06:18,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 00:06:18,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 00:06:18,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 00:06:18,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 00:06:18,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 00:06:18,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 00:06:18,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 00:06:18,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 00:06:18,329 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 00:06:18,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 00:06:18,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 00:06:18,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 00:06:18,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 00:06:18,338 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 00:06:18,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 00:06:18,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 00:06:18,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 00:06:18,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 00:06:18,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 00:06:18,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 00:06:18,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 00:06:18,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 00:06:18,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 00:06:18,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 00:06:18,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 00:06:18,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 00:06:18,352 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-31 00:06:18,381 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 00:06:18,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 00:06:18,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 00:06:18,382 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 00:06:18,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 00:06:18,383 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 00:06:18,383 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 00:06:18,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 00:06:18,384 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 00:06:18,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 00:06:18,385 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 00:06:18,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 00:06:18,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 00:06:18,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 00:06:18,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 00:06:18,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 00:06:18,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 00:06:18,386 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 00:06:18,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 00:06:18,386 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 00:06:18,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 00:06:18,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 00:06:18,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 00:06:18,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 00:06:18,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:06:18,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 00:06:18,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 00:06:18,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 00:06:18,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 00:06:18,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 00:06:18,388 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 00:06:18,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 00:06:18,389 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 00:06:18,389 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 00:06:18,389 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 00:06:18,389 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-31 00:06:18,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 00:06:18,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 00:06:18,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 00:06:18,718 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 00:06:18,719 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 00:06:18,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-08-31 00:06:19,837 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 00:06:20,084 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 00:06:20,085 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-08-31 00:06:20,095 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09408e224/d153904e748b4666ab0be7006656bb75/FLAG3b4b62357 [2023-08-31 00:06:20,107 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09408e224/d153904e748b4666ab0be7006656bb75 [2023-08-31 00:06:20,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 00:06:20,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 00:06:20,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 00:06:20,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 00:06:20,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 00:06:20,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:06:20" (1/1) ... [2023-08-31 00:06:20,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3209df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:20, skipping insertion in model container [2023-08-31 00:06:20,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:06:20" (1/1) ... [2023-08-31 00:06:20,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 00:06:20,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 00:06:20,320 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2023-08-31 00:06:20,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:06:20,490 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 00:06:20,503 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i[1097,1110] [2023-08-31 00:06:20,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:06:20,627 INFO L208 MainTranslator]: Completed translation [2023-08-31 00:06:20,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:20 WrapperNode [2023-08-31 00:06:20,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 00:06:20,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 00:06:20,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 00:06:20,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 00:06:20,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:20" (1/1) ... [2023-08-31 00:06:20,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:20" (1/1) ... [2023-08-31 00:06:20,687 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2023-08-31 00:06:20,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 00:06:20,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 00:06:20,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 00:06:20,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 00:06:20,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:20" (1/1) ... [2023-08-31 00:06:20,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:20" (1/1) ... [2023-08-31 00:06:20,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:20" (1/1) ... [2023-08-31 00:06:20,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:20" (1/1) ... [2023-08-31 00:06:20,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:20" (1/1) ... [2023-08-31 00:06:20,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:20" (1/1) ... [2023-08-31 00:06:20,721 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:20" (1/1) ... [2023-08-31 00:06:20,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:20" (1/1) ... [2023-08-31 00:06:20,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 00:06:20,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 00:06:20,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 00:06:20,729 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 00:06:20,730 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:20" (1/1) ... [2023-08-31 00:06:20,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:06:20,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:06:20,758 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) [2023-08-31 00:06:20,766 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 [2023-08-31 00:06:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 00:06:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 00:06:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 00:06:20,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 00:06:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 00:06:20,792 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 00:06:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 00:06:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 00:06:20,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 00:06:20,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 00:06:20,794 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 00:06:20,889 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 00:06:20,891 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 00:06:21,018 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 00:06:21,023 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 00:06:21,023 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 00:06:21,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:06:21 BoogieIcfgContainer [2023-08-31 00:06:21,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 00:06:21,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 00:06:21,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 00:06:21,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 00:06:21,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 12:06:20" (1/3) ... [2023-08-31 00:06:21,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa1cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:06:21, skipping insertion in model container [2023-08-31 00:06:21,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:06:20" (2/3) ... [2023-08-31 00:06:21,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fa1cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:06:21, skipping insertion in model container [2023-08-31 00:06:21,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:06:21" (3/3) ... [2023-08-31 00:06:21,032 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-08-31 00:06:21,038 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 00:06:21,046 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 00:06:21,060 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-31 00:06:21,061 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 00:06:21,134 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 00:06:21,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 60 transitions, 125 flow [2023-08-31 00:06:21,202 INFO L130 PetriNetUnfolder]: 1/59 cut-off events. [2023-08-31 00:06:21,202 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:06:21,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 59 events. 1/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 26 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2023-08-31 00:06:21,206 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 60 transitions, 125 flow [2023-08-31 00:06:21,209 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 105 flow [2023-08-31 00:06:21,212 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:06:21,219 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 105 flow [2023-08-31 00:06:21,222 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 51 transitions, 105 flow [2023-08-31 00:06:21,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 105 flow [2023-08-31 00:06:21,236 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2023-08-31 00:06:21,236 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:06:21,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 51 events. 0/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 00:06:21,237 INFO L119 LiptonReduction]: Number of co-enabled transitions 240 [2023-08-31 00:06:23,252 INFO L134 LiptonReduction]: Checked pairs total: 592 [2023-08-31 00:06:23,252 INFO L136 LiptonReduction]: Total number of compositions: 40 [2023-08-31 00:06:23,273 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:06:23,286 INFO L357 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, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a9df6c9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:06:23,286 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-31 00:06:23,291 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-08-31 00:06:23,292 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:06:23,292 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:06:23,293 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 00:06:23,294 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-31 00:06:23,300 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:06:23,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1761964991, now seen corresponding path program 1 times [2023-08-31 00:06:23,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:06:23,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167534013] [2023-08-31 00:06:23,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:06:23,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:06:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:06:23,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 00:06:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:06:23,448 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 00:06:23,450 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 00:06:23,451 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-08-31 00:06:23,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-31 00:06:23,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:06:23,453 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-31 00:06:23,458 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 00:06:23,459 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 00:06:23,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 12:06:23 BasicIcfg [2023-08-31 00:06:23,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 00:06:23,476 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 00:06:23,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 00:06:23,476 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 00:06:23,476 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:06:21" (3/4) ... [2023-08-31 00:06:23,478 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-31 00:06:23,519 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 00:06:23,520 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 00:06:23,521 INFO L158 Benchmark]: Toolchain (without parser) took 3410.95ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 45.5MB in the beginning and 26.6MB in the end (delta: 18.9MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2023-08-31 00:06:23,521 INFO L158 Benchmark]: CDTParser took 0.86ms. Allocated memory is still 69.2MB. Free memory is still 46.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:06:23,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 517.69ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 45.3MB in the beginning and 57.5MB in the end (delta: -12.2MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2023-08-31 00:06:23,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.81ms. Allocated memory is still 83.9MB. Free memory was 57.5MB in the beginning and 55.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:06:23,522 INFO L158 Benchmark]: Boogie Preprocessor took 38.63ms. Allocated memory is still 83.9MB. Free memory was 55.8MB in the beginning and 54.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:06:23,523 INFO L158 Benchmark]: RCFGBuilder took 297.32ms. Allocated memory is still 83.9MB. Free memory was 54.2MB in the beginning and 42.4MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-31 00:06:23,523 INFO L158 Benchmark]: TraceAbstraction took 2447.87ms. Allocated memory is still 83.9MB. Free memory was 41.6MB in the beginning and 28.7MB in the end (delta: 12.9MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2023-08-31 00:06:23,523 INFO L158 Benchmark]: Witness Printer took 44.20ms. Allocated memory is still 83.9MB. Free memory was 28.7MB in the beginning and 26.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:06:23,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86ms. Allocated memory is still 69.2MB. Free memory is still 46.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 517.69ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 45.3MB in the beginning and 57.5MB in the end (delta: -12.2MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.81ms. Allocated memory is still 83.9MB. Free memory was 57.5MB in the beginning and 55.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.63ms. Allocated memory is still 83.9MB. Free memory was 55.8MB in the beginning and 54.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 297.32ms. Allocated memory is still 83.9MB. Free memory was 54.2MB in the beginning and 42.4MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2447.87ms. Allocated memory is still 83.9MB. Free memory was 41.6MB in the beginning and 28.7MB in the end (delta: 12.9MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Witness Printer took 44.20ms. Allocated memory is still 83.9MB. Free memory was 28.7MB in the beginning and 26.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 55 PlacesBefore, 15 PlacesAfterwards, 51 TransitionsBefore, 11 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 6 FixpointIterations, 27 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 40 TotalNumberOfCompositions, 592 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 269, independent: 181, independent conditional: 0, independent unconditional: 181, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 126, independent: 111, independent conditional: 0, independent unconditional: 111, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 269, independent: 70, independent conditional: 0, independent unconditional: 70, dependent: 73, dependent conditional: 0, dependent unconditional: 73, unknown: 126, unknown conditional: 0, unknown unconditional: 126] , Statistics on independence cache: Total cache size (in pairs): 14, Positive cache size: 5, Positive conditional cache size: 0, Positive unconditional cache size: 5, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L681] 0 int g = 0; [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, D={4:0}, arg={0:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L698] CALL 0 __VERIFIER_assert(!(g == 0)) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [A={3:0}, D={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=0] - UnprovableResult [Line: 694]: 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, 72 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2023-08-31 00:06:23,553 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE