./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 BEFORE --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 BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-09-01 10:43:24,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 10:43:24,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 10:43:24,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 10:43:24,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 10:43:24,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 10:43:24,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 10:43:24,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 10:43:24,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 10:43:24,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 10:43:24,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 10:43:24,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 10:43:24,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 10:43:24,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 10:43:24,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 10:43:24,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 10:43:24,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 10:43:24,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 10:43:24,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 10:43:24,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 10:43:24,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 10:43:24,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 10:43:24,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 10:43:24,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 10:43:24,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 10:43:24,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 10:43:24,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 10:43:24,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 10:43:24,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 10:43:24,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 10:43:24,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 10:43:24,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 10:43:24,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 10:43:24,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 10:43:24,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 10:43:24,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 10:43:24,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 10:43:24,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 10:43:24,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 10:43:24,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 10:43:24,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 10:43:24,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-09-01 10:43:24,423 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 10:43:24,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 10:43:24,424 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 10:43:24,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 10:43:24,425 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 10:43:24,425 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 10:43:24,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 10:43:24,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 10:43:24,426 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 10:43:24,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 10:43:24,427 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 10:43:24,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 10:43:24,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 10:43:24,428 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 10:43:24,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 10:43:24,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 10:43:24,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 10:43:24,428 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 10:43:24,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 10:43:24,429 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 10:43:24,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 10:43:24,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 10:43:24,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 10:43:24,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 10:43:24,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 10:43:24,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 10:43:24,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 10:43:24,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 10:43:24,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 10:43:24,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 10:43:24,431 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 10:43:24,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 10:43:24,432 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 10:43:24,432 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 10:43:24,432 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 10:43:24,432 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fac19196210fd8dde96f5954c583dd6bd52f0c23546782896f7a0038bedd43c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 10:43:24,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 10:43:24,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 10:43:24,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 10:43:24,744 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 10:43:24,744 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 10:43:24,745 INFO L432 ainManager$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 [2023-09-01 10:43:25,948 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 10:43:26,208 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 10:43:26,208 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-09-01 10:43:26,221 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30fb9cac9/cef60a48d1a64bea90505299d51b0f2d/FLAG67d5def56 [2023-09-01 10:43:26,233 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30fb9cac9/cef60a48d1a64bea90505299d51b0f2d [2023-09-01 10:43:26,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 10:43:26,235 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 10:43:26,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 10:43:26,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 10:43:26,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 10:43:26,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 10:43:26" (1/1) ... [2023-09-01 10:43:26,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bfcd155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:43:26, skipping insertion in model container [2023-09-01 10:43:26,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 10:43:26" (1/1) ... [2023-09-01 10:43:26,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 10:43:26,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 10:43:26,402 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] [2023-09-01 10:43:26,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 10:43:26,564 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 10:43:26,580 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] [2023-09-01 10:43:26,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 10:43:26,647 INFO L208 MainTranslator]: Completed translation [2023-09-01 10:43:26,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:43:26 WrapperNode [2023-09-01 10:43:26,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 10:43:26,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 10:43:26,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 10:43:26,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 10:43:26,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:43:26" (1/1) ... [2023-09-01 10:43:26,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:43:26" (1/1) ... [2023-09-01 10:43:26,709 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2023-09-01 10:43:26,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 10:43:26,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 10:43:26,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 10:43:26,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 10:43:26,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:43:26" (1/1) ... [2023-09-01 10:43:26,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:43:26" (1/1) ... [2023-09-01 10:43:26,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:43:26" (1/1) ... [2023-09-01 10:43:26,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:43:26" (1/1) ... [2023-09-01 10:43:26,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:43:26" (1/1) ... [2023-09-01 10:43:26,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:43:26" (1/1) ... [2023-09-01 10:43:26,746 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:43:26" (1/1) ... [2023-09-01 10:43:26,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:43:26" (1/1) ... [2023-09-01 10:43:26,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 10:43:26,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 10:43:26,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 10:43:26,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 10:43:26,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:43:26" (1/1) ... [2023-09-01 10:43:26,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 10:43:26,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 10:43:26,788 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) [2023-09-01 10:43:26,795 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 [2023-09-01 10:43:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 10:43:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 10:43:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 10:43:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 10:43:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 10:43:26,818 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 10:43:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 10:43:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 10:43:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 10:43:26,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 10:43:26,820 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-01 10:43:26,987 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 10:43:26,996 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 10:43:27,151 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 10:43:27,157 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 10:43:27,157 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 10:43:27,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:43:27 BoogieIcfgContainer [2023-09-01 10:43:27,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 10:43:27,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 10:43:27,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 10:43:27,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 10:43:27,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 10:43:26" (1/3) ... [2023-09-01 10:43:27,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1399070d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 10:43:27, skipping insertion in model container [2023-09-01 10:43:27,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:43:26" (2/3) ... [2023-09-01 10:43:27,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1399070d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 10:43:27, skipping insertion in model container [2023-09-01 10:43:27,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:43:27" (3/3) ... [2023-09-01 10:43:27,166 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_neg.i [2023-09-01 10:43:27,174 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 10:43:27,183 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 10:43:27,183 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-01 10:43:27,183 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 10:43:27,248 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-09-01 10:43:27,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 60 transitions, 125 flow [2023-09-01 10:43:27,364 INFO L130 PetriNetUnfolder]: 1/59 cut-off events. [2023-09-01 10:43:27,365 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 10:43:27,369 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. [2023-09-01 10:43:27,369 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 60 transitions, 125 flow [2023-09-01 10:43:27,373 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 51 transitions, 105 flow [2023-09-01 10:43:27,376 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 10:43:27,393 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 51 transitions, 105 flow [2023-09-01 10:43:27,397 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 51 transitions, 105 flow [2023-09-01 10:43:27,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 51 transitions, 105 flow [2023-09-01 10:43:27,424 INFO L130 PetriNetUnfolder]: 0/51 cut-off events. [2023-09-01 10:43:27,425 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 10:43:27,426 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. [2023-09-01 10:43:27,427 INFO L119 LiptonReduction]: Number of co-enabled transitions 240 [2023-09-01 10:43:29,568 INFO L134 LiptonReduction]: Checked pairs total: 592 [2023-09-01 10:43:29,568 INFO L136 LiptonReduction]: Total number of compositions: 40 [2023-09-01 10:43:29,579 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 10:43:29,584 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;@10282179, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 10:43:29,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-09-01 10:43:29,587 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2023-09-01 10:43:29,587 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 10:43:29,588 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:43:29,588 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-09-01 10:43:29,589 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-09-01 10:43:29,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:43:29,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1761964991, now seen corresponding path program 1 times [2023-09-01 10:43:29,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:43:29,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397062167] [2023-09-01 10:43:29,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:43:29,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:43:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:43:29,690 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 10:43:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:43:29,754 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 10:43:29,756 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 10:43:29,757 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-09-01 10:43:29,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-09-01 10:43:29,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 10:43:29,760 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 10:43:29,767 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 10:43:29,767 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 10:43:29,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 10:43:29 BasicIcfg [2023-09-01 10:43:29,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 10:43:29,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 10:43:29,786 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 10:43:29,786 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 10:43:29,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:43:27" (3/4) ... [2023-09-01 10:43:29,788 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-09-01 10:43:29,862 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 10:43:29,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 10:43:29,863 INFO L158 Benchmark]: Toolchain (without parser) took 3627.93ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 51.9MB in the beginning and 70.8MB in the end (delta: -18.9MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2023-09-01 10:43:29,864 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 36.6MB in the beginning and 36.6MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 10:43:29,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.07ms. Allocated memory is still 77.6MB. Free memory was 51.7MB in the beginning and 51.7MB in the end (delta: 11.2kB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-09-01 10:43:29,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.92ms. Allocated memory is still 77.6MB. Free memory was 51.7MB in the beginning and 49.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 10:43:29,865 INFO L158 Benchmark]: Boogie Preprocessor took 46.11ms. Allocated memory is still 77.6MB. Free memory was 49.6MB in the beginning and 48.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 10:43:29,865 INFO L158 Benchmark]: RCFGBuilder took 401.75ms. Allocated memory is still 77.6MB. Free memory was 48.3MB in the beginning and 36.4MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-09-01 10:43:29,865 INFO L158 Benchmark]: TraceAbstraction took 2624.91ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 35.7MB in the beginning and 36.4MB in the end (delta: -659.0kB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2023-09-01 10:43:29,866 INFO L158 Benchmark]: Witness Printer took 76.83ms. Allocated memory is still 94.4MB. Free memory was 36.4MB in the beginning and 70.8MB in the end (delta: -34.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 10:43:29,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 36.6MB in the beginning and 36.6MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.07ms. Allocated memory is still 77.6MB. Free memory was 51.7MB in the beginning and 51.7MB in the end (delta: 11.2kB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.92ms. Allocated memory is still 77.6MB. Free memory was 51.7MB in the beginning and 49.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.11ms. Allocated memory is still 77.6MB. Free memory was 49.6MB in the beginning and 48.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 401.75ms. Allocated memory is still 77.6MB. Free memory was 48.3MB in the beginning and 36.4MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2624.91ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 35.7MB in the beginning and 36.4MB in the end (delta: -659.0kB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Witness Printer took 76.83ms. Allocated memory is still 94.4MB. Free memory was 36.4MB in the beginning and 70.8MB in the end (delta: -34.4MB). 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: 2.2s, 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: 2.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, 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! [2023-09-01 10:43:29,889 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