./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.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_18-first-reads_unknown_2_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 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa --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 00:05:06,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 00:05:06,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 00:05:06,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 00:05:06,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 00:05:06,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 00:05:06,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 00:05:06,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 00:05:06,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 00:05:06,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 00:05:06,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 00:05:06,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 00:05:06,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 00:05:06,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 00:05:06,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 00:05:06,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 00:05:06,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 00:05:06,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 00:05:06,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 00:05:06,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 00:05:06,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 00:05:06,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 00:05:06,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 00:05:06,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 00:05:06,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 00:05:06,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 00:05:06,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 00:05:06,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 00:05:06,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 00:05:06,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 00:05:06,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 00:05:06,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 00:05:06,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 00:05:06,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 00:05:06,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 00:05:06,237 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 00:05:06,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 00:05:06,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 00:05:06,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 00:05:06,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 00:05:06,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 00:05:06,241 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-31 00:05:06,286 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 00:05:06,286 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 00:05:06,287 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 00:05:06,287 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 00:05:06,288 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 00:05:06,289 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 00:05:06,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 00:05:06,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 00:05:06,289 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 00:05:06,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 00:05:06,291 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 00:05:06,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 00:05:06,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 00:05:06,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 00:05:06,291 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 00:05:06,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 00:05:06,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 00:05:06,292 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 00:05:06,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 00:05:06,292 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 00:05:06,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 00:05:06,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 00:05:06,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 00:05:06,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 00:05:06,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:05:06,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 00:05:06,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 00:05:06,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 00:05:06,294 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 00:05:06,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 00:05:06,295 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 00:05:06,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 00:05:06,295 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 00:05:06,295 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 00:05:06,296 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 00:05:06,296 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-31 00:05:06,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 00:05:06,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 00:05:06,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 00:05:06,604 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 00:05:06,605 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 00:05:06,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2023-08-31 00:05:07,941 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 00:05:08,227 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 00:05:08,227 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2023-08-31 00:05:08,241 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10feff82b/50b1c189442b47b8905886a428ec9f9d/FLAG0084c2c05 [2023-08-31 00:05:08,259 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10feff82b/50b1c189442b47b8905886a428ec9f9d [2023-08-31 00:05:08,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 00:05:08,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 00:05:08,265 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 00:05:08,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 00:05:08,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 00:05:08,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:05:08" (1/1) ... [2023-08-31 00:05:08,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651c1028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:08, skipping insertion in model container [2023-08-31 00:05:08,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:05:08" (1/1) ... [2023-08-31 00:05:08,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 00:05:08,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 00:05:08,434 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_2_pos.i[1097,1110] [2023-08-31 00:05:08,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:05:08,591 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 00:05:08,606 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_2_pos.i[1097,1110] [2023-08-31 00:05:08,646 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:05:08,685 INFO L208 MainTranslator]: Completed translation [2023-08-31 00:05:08,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:08 WrapperNode [2023-08-31 00:05:08,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 00:05:08,687 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 00:05:08,687 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 00:05:08,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 00:05:08,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:08" (1/1) ... [2023-08-31 00:05:08,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:08" (1/1) ... [2023-08-31 00:05:08,788 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-31 00:05:08,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 00:05:08,789 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 00:05:08,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 00:05:08,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 00:05:08,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:08" (1/1) ... [2023-08-31 00:05:08,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:08" (1/1) ... [2023-08-31 00:05:08,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:08" (1/1) ... [2023-08-31 00:05:08,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:08" (1/1) ... [2023-08-31 00:05:08,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:08" (1/1) ... [2023-08-31 00:05:08,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:08" (1/1) ... [2023-08-31 00:05:08,820 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:08" (1/1) ... [2023-08-31 00:05:08,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:08" (1/1) ... [2023-08-31 00:05:08,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 00:05:08,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 00:05:08,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 00:05:08,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 00:05:08,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:08" (1/1) ... [2023-08-31 00:05:08,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:05:08,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:05:08,862 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 00:05:08,876 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 00:05:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 00:05:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 00:05:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 00:05:08,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 00:05:08,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 00:05:08,900 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 00:05:08,900 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 00:05:08,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 00:05:08,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 00:05:08,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 00:05:08,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 00:05:08,902 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 00:05:09,080 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 00:05:09,098 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 00:05:09,280 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 00:05:09,285 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 00:05:09,286 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 00:05:09,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:05:09 BoogieIcfgContainer [2023-08-31 00:05:09,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 00:05:09,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 00:05:09,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 00:05:09,298 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 00:05:09,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 12:05:08" (1/3) ... [2023-08-31 00:05:09,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fcb44f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:05:09, skipping insertion in model container [2023-08-31 00:05:09,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:05:08" (2/3) ... [2023-08-31 00:05:09,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fcb44f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:05:09, skipping insertion in model container [2023-08-31 00:05:09,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:05:09" (3/3) ... [2023-08-31 00:05:09,301 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2023-08-31 00:05:09,309 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 00:05:09,318 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 00:05:09,319 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-31 00:05:09,319 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 00:05:09,399 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 00:05:09,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-08-31 00:05:09,493 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-08-31 00:05:09,494 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 00:05:09,506 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. [2023-08-31 00:05:09,506 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-08-31 00:05:09,510 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-08-31 00:05:09,514 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:05:09,534 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-08-31 00:05:09,537 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-08-31 00:05:09,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-08-31 00:05:09,551 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-08-31 00:05:09,556 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:05:09,557 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. [2023-08-31 00:05:09,558 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-08-31 00:05:11,421 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-08-31 00:05:11,421 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-08-31 00:05:11,440 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:05:11,448 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;@136daba7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:05:11,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-31 00:05:11,452 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-31 00:05:11,453 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:05:11,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:05:11,454 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-31 00:05:11,455 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-31 00:05:11,459 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:05:11,459 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-08-31 00:05:11,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:05:11,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176381349] [2023-08-31 00:05:11,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:05:11,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:05:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:05:11,597 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 00:05:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:05:11,639 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 00:05:11,641 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 00:05:11,642 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-31 00:05:11,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-31 00:05:11,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-08-31 00:05:11,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:05:11,645 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-31 00:05:11,650 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 00:05:11,651 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 00:05:11,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 12:05:11 BasicIcfg [2023-08-31 00:05:11,665 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 00:05:11,666 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 00:05:11,666 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 00:05:11,666 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 00:05:11,667 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:05:09" (3/4) ... [2023-08-31 00:05:11,668 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-31 00:05:11,698 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 00:05:11,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 00:05:11,699 INFO L158 Benchmark]: Toolchain (without parser) took 3436.31ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 64.9MB in the beginning and 42.0MB in the end (delta: 22.9MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. [2023-08-31 00:05:11,700 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 67.1MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 43.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:05:11,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.07ms. Allocated memory is still 88.1MB. Free memory was 64.7MB in the beginning and 46.0MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-31 00:05:11,701 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.13ms. Allocated memory is still 88.1MB. Free memory was 46.0MB in the beginning and 67.8MB in the end (delta: -21.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 00:05:11,701 INFO L158 Benchmark]: Boogie Preprocessor took 39.24ms. Allocated memory is still 88.1MB. Free memory was 67.8MB in the beginning and 66.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:05:11,701 INFO L158 Benchmark]: RCFGBuilder took 458.69ms. Allocated memory is still 88.1MB. Free memory was 66.6MB in the beginning and 54.5MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-31 00:05:11,702 INFO L158 Benchmark]: TraceAbstraction took 2375.65ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 53.7MB in the beginning and 43.7MB in the end (delta: 10.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-08-31 00:05:11,702 INFO L158 Benchmark]: Witness Printer took 32.28ms. Allocated memory is still 107.0MB. Free memory was 43.7MB in the beginning and 42.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:05:11,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 67.1MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 43.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 421.07ms. Allocated memory is still 88.1MB. Free memory was 64.7MB in the beginning and 46.0MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.13ms. Allocated memory is still 88.1MB. Free memory was 46.0MB in the beginning and 67.8MB in the end (delta: -21.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.24ms. Allocated memory is still 88.1MB. Free memory was 67.8MB in the beginning and 66.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 458.69ms. Allocated memory is still 88.1MB. Free memory was 66.6MB in the beginning and 54.5MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2375.65ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 53.7MB in the beginning and 43.7MB in the end (delta: 10.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 32.28ms. Allocated memory is still 107.0MB. Free memory was 43.7MB in the beginning and 42.0MB in the end (delta: 1.7MB). 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: 1.9s, 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 FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, 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: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, 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, 0.1s 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! [2023-08-31 00:05:11,724 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