./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.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_18-first-reads_unknown_1_pos.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 a91542c733a27a18dff97acca49ae580b7929842603ed8a2c1cdbb309e164d67 --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 10:42:11,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-09-01 10:42:11,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-09-01 10:42:11,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-09-01 10:42:11,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-09-01 10:42:11,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-09-01 10:42:11,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-09-01 10:42:11,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-09-01 10:42:11,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-09-01 10:42:11,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-09-01 10:42:11,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-09-01 10:42:11,929 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-09-01 10:42:11,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-09-01 10:42:11,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-09-01 10:42:11,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-09-01 10:42:11,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-09-01 10:42:11,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-09-01 10:42:11,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-09-01 10:42:11,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-09-01 10:42:11,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-09-01 10:42:11,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-09-01 10:42:11,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-09-01 10:42:11,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-09-01 10:42:11,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-09-01 10:42:11,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-09-01 10:42:11,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-09-01 10:42:11,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-09-01 10:42:11,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-09-01 10:42:11,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-09-01 10:42:11,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-09-01 10:42:11,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-09-01 10:42:11,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-09-01 10:42:11,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-09-01 10:42:11,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-09-01 10:42:11,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-09-01 10:42:11,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-09-01 10:42:11,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-09-01 10:42:11,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-09-01 10:42:11,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-09-01 10:42:11,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-09-01 10:42:11,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-09-01 10:42:11,982 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-09-01 10:42:12,015 INFO L113 SettingsManager]: Loading preferences was successful [2023-09-01 10:42:12,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-01 10:42:12,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-01 10:42:12,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-01 10:42:12,018 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-01 10:42:12,018 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-01 10:42:12,019 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-01 10:42:12,019 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-09-01 10:42:12,019 INFO L138 SettingsManager]: * Use SBE=true [2023-09-01 10:42:12,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-01 10:42:12,020 INFO L138 SettingsManager]: * sizeof long=4 [2023-09-01 10:42:12,020 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-01 10:42:12,020 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-09-01 10:42:12,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-09-01 10:42:12,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-01 10:42:12,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-01 10:42:12,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-01 10:42:12,021 INFO L138 SettingsManager]: * sizeof long double=12 [2023-09-01 10:42:12,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-09-01 10:42:12,022 INFO L138 SettingsManager]: * Use constant arrays=true [2023-09-01 10:42:12,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-01 10:42:12,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-01 10:42:12,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-01 10:42:12,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-01 10:42:12,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 10:42:12,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-01 10:42:12,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-01 10:42:12,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-01 10:42:12,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-01 10:42:12,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-01 10:42:12,024 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-09-01 10:42:12,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-01 10:42:12,024 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-09-01 10:42:12,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-09-01 10:42:12,025 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-09-01 10:42:12,025 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a91542c733a27a18dff97acca49ae580b7929842603ed8a2c1cdbb309e164d67 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-09-01 10:42:12,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-01 10:42:12,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-01 10:42:12,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-01 10:42:12,349 INFO L271 PluginConnector]: Initializing CDTParser... [2023-09-01 10:42:12,349 INFO L275 PluginConnector]: CDTParser initialized [2023-09-01 10:42:12,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-09-01 10:42:13,496 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-09-01 10:42:13,709 INFO L351 CDTParser]: Found 1 translation units. [2023-09-01 10:42:13,709 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_1_pos.i [2023-09-01 10:42:13,720 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72c1199dc/7e76d677067a40fb9b5ac18ce4e24e1d/FLAGb6d2a2d5b [2023-09-01 10:42:14,075 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72c1199dc/7e76d677067a40fb9b5ac18ce4e24e1d [2023-09-01 10:42:14,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-01 10:42:14,079 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-09-01 10:42:14,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-01 10:42:14,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-01 10:42:14,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-01 10:42:14,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea4dc93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14, skipping insertion in model container [2023-09-01 10:42:14,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-09-01 10:42:14,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-09-01 10:42:14,242 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_18-first-reads_unknown_1_pos.i[1097,1110] [2023-09-01 10:42:14,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 10:42:14,358 INFO L203 MainTranslator]: Completed pre-run [2023-09-01 10:42:14,371 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_18-first-reads_unknown_1_pos.i[1097,1110] [2023-09-01 10:42:14,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-01 10:42:14,463 INFO L208 MainTranslator]: Completed translation [2023-09-01 10:42:14,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14 WrapperNode [2023-09-01 10:42:14,463 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-01 10:42:14,465 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-01 10:42:14,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-01 10:42:14,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-01 10:42:14,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,522 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-09-01 10:42:14,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-01 10:42:14,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-01 10:42:14,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-01 10:42:14,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-09-01 10:42:14,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,559 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-01 10:42:14,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-01 10:42:14,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-09-01 10:42:14,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-09-01 10:42:14,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (1/1) ... [2023-09-01 10:42:14,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-01 10:42:14,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-01 10:42:14,601 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 10:42:14,620 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 10:42:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-01 10:42:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-01 10:42:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-09-01 10:42:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-01 10:42:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-01 10:42:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-09-01 10:42:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-09-01 10:42:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-01 10:42:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-01 10:42:14,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-01 10:42:14,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-01 10:42:14,642 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 10:42:14,788 INFO L236 CfgBuilder]: Building ICFG [2023-09-01 10:42:14,790 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-01 10:42:14,898 INFO L277 CfgBuilder]: Performing block encoding [2023-09-01 10:42:14,903 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-01 10:42:14,903 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-09-01 10:42:14,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:42:14 BoogieIcfgContainer [2023-09-01 10:42:14,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-01 10:42:14,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-01 10:42:14,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-09-01 10:42:14,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-09-01 10:42:14,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.09 10:42:14" (1/3) ... [2023-09-01 10:42:14,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b29407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 10:42:14, skipping insertion in model container [2023-09-01 10:42:14,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 10:42:14" (2/3) ... [2023-09-01 10:42:14,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b29407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.09 10:42:14, skipping insertion in model container [2023-09-01 10:42:14,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:42:14" (3/3) ... [2023-09-01 10:42:14,912 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_1_pos.i [2023-09-01 10:42:14,919 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-01 10:42:14,927 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-01 10:42:14,927 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-01 10:42:14,927 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-01 10:42:14,968 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-09-01 10:42:14,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-09-01 10:42:15,047 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-09-01 10:42:15,048 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-09-01 10:42:15,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 58 events. 2/58 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-09-01 10:42:15,051 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-09-01 10:42:15,059 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-09-01 10:42:15,063 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-09-01 10:42:15,079 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-09-01 10:42:15,085 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-09-01 10:42:15,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-09-01 10:42:15,110 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-09-01 10:42:15,110 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 10:42:15,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 44 events. 1/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 14 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-09-01 10:42:15,112 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-09-01 10:42:17,155 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-09-01 10:42:17,155 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-09-01 10:42:17,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-09-01 10:42:17,171 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;@48ee798d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-09-01 10:42:17,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-09-01 10:42:17,173 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-09-01 10:42:17,173 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-09-01 10:42:17,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-09-01 10:42:17,174 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-09-01 10:42:17,174 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-01 10:42:17,178 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-01 10:42:17,178 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-09-01 10:42:17,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-01 10:42:17,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60489400] [2023-09-01 10:42:17,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-01 10:42:17,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-01 10:42:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:42:17,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-09-01 10:42:17,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-09-01 10:42:17,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-09-01 10:42:17,329 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-09-01 10:42:17,330 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-09-01 10:42:17,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-09-01 10:42:17,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-09-01 10:42:17,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-01 10:42:17,333 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-09-01 10:42:17,338 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-09-01 10:42:17,338 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-09-01 10:42:17,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.09 10:42:17 BasicIcfg [2023-09-01 10:42:17,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-09-01 10:42:17,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-09-01 10:42:17,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-09-01 10:42:17,353 INFO L275 PluginConnector]: Witness Printer initialized [2023-09-01 10:42:17,353 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 10:42:14" (3/4) ... [2023-09-01 10:42:17,355 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-09-01 10:42:17,413 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-09-01 10:42:17,414 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-09-01 10:42:17,415 INFO L158 Benchmark]: Toolchain (without parser) took 3335.29ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 52.4MB in the beginning and 70.5MB in the end (delta: -18.2MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2023-09-01 10:42:17,415 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 60.8MB. Free memory was 38.8MB in the beginning and 38.7MB in the end (delta: 98.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-09-01 10:42:17,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.70ms. Allocated memory is still 77.6MB. Free memory was 52.2MB in the beginning and 51.8MB in the end (delta: 385.1kB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2023-09-01 10:42:17,416 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.75ms. Allocated memory is still 77.6MB. Free memory was 51.8MB in the beginning and 49.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 10:42:17,416 INFO L158 Benchmark]: Boogie Preprocessor took 45.60ms. Allocated memory is still 77.6MB. Free memory was 49.7MB in the beginning and 48.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 10:42:17,417 INFO L158 Benchmark]: RCFGBuilder took 335.25ms. Allocated memory is still 77.6MB. Free memory was 48.5MB in the beginning and 36.3MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-09-01 10:42:17,417 INFO L158 Benchmark]: TraceAbstraction took 2445.79ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 35.9MB in the beginning and 68.9MB in the end (delta: -33.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-09-01 10:42:17,418 INFO L158 Benchmark]: Witness Printer took 60.91ms. Allocated memory is still 94.4MB. Free memory was 68.9MB in the beginning and 70.5MB in the end (delta: -1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-09-01 10:42:17,420 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 60.8MB. Free memory was 38.8MB in the beginning and 38.7MB in the end (delta: 98.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.70ms. Allocated memory is still 77.6MB. Free memory was 52.2MB in the beginning and 51.8MB in the end (delta: 385.1kB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.75ms. Allocated memory is still 77.6MB. Free memory was 51.8MB in the beginning and 49.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.60ms. Allocated memory is still 77.6MB. Free memory was 49.7MB in the beginning and 48.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 335.25ms. Allocated memory is still 77.6MB. Free memory was 48.5MB in the beginning and 36.3MB in the end (delta: 12.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2445.79ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 35.9MB in the beginning and 68.9MB in the end (delta: -33.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 60.91ms. Allocated memory is still 94.4MB. Free memory was 68.9MB in the beginning and 70.5MB in the end (delta: -1.6MB). 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: 2.1s, 47 PlacesBefore, 9 PlacesAfterwards, 44 TransitionsBefore, 5 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 42 TotalNumberOfCompositions, 188 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 174, independent: 159, independent conditional: 0, independent unconditional: 159, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 112, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 174, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 112, unknown conditional: 0, unknown unconditional: 112] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, 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: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 0) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: 698]: 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, 81 locations, 3 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: 2.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 3 NumberOfCodeBlocks, 3 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 10:42:17,442 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