./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 AFTER --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 AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 17:40:36,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 17:40:36,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 17:40:36,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 17:40:36,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 17:40:36,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 17:40:36,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 17:40:36,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 17:40:36,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 17:40:36,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 17:40:36,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 17:40:36,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 17:40:36,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 17:40:36,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 17:40:36,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 17:40:36,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 17:40:36,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 17:40:36,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 17:40:36,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 17:40:36,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 17:40:36,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 17:40:36,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 17:40:36,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 17:40:36,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 17:40:36,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 17:40:36,187 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 17:40:36,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 17:40:36,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 17:40:36,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 17:40:36,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 17:40:36,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 17:40:36,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 17:40:36,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 17:40:36,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 17:40:36,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 17:40:36,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 17:40:36,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 17:40:36,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 17:40:36,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 17:40:36,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 17:40:36,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 17:40:36,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 17:40:36,233 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 17:40:36,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 17:40:36,235 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 17:40:36,236 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 17:40:36,237 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 17:40:36,237 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 17:40:36,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 17:40:36,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 17:40:36,238 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 17:40:36,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 17:40:36,239 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 17:40:36,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 17:40:36,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 17:40:36,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 17:40:36,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 17:40:36,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 17:40:36,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 17:40:36,240 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 17:40:36,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 17:40:36,241 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 17:40:36,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 17:40:36,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 17:40:36,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 17:40:36,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 17:40:36,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:40:36,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 17:40:36,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 17:40:36,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 17:40:36,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 17:40:36,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 17:40:36,243 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 17:40:36,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 17:40:36,243 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 17:40:36,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 17:40:36,244 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 17:40:36,244 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 672adc4cc5a37e070cc95d046193d9ccd4d73b39f78c06c79ee40c1584c27afa Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 17:40:36,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 17:40:36,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 17:40:36,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 17:40:36,572 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 17:40:36,572 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 17:40:36,573 INFO L432 ainManager$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 [2023-08-30 17:40:37,636 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 17:40:37,909 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 17:40:37,912 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2023-08-30 17:40:37,931 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5619fb012/abcb5858b6be42a4a396b3939d1b7f01/FLAG06b348fe0 [2023-08-30 17:40:37,955 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5619fb012/abcb5858b6be42a4a396b3939d1b7f01 [2023-08-30 17:40:37,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 17:40:37,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 17:40:37,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 17:40:37,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 17:40:37,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 17:40:37,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:40:37" (1/1) ... [2023-08-30 17:40:37,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b359e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:37, skipping insertion in model container [2023-08-30 17:40:37,968 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 05:40:37" (1/1) ... [2023-08-30 17:40:37,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 17:40:38,017 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 17:40:38,174 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] [2023-08-30 17:40:38,325 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:40:38,337 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 17:40:38,352 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] [2023-08-30 17:40:38,385 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 17:40:38,420 INFO L208 MainTranslator]: Completed translation [2023-08-30 17:40:38,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:38 WrapperNode [2023-08-30 17:40:38,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 17:40:38,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 17:40:38,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 17:40:38,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 17:40:38,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:38" (1/1) ... [2023-08-30 17:40:38,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:38" (1/1) ... [2023-08-30 17:40:38,456 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-08-30 17:40:38,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 17:40:38,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 17:40:38,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 17:40:38,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 17:40:38,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:38" (1/1) ... [2023-08-30 17:40:38,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:38" (1/1) ... [2023-08-30 17:40:38,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:38" (1/1) ... [2023-08-30 17:40:38,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:38" (1/1) ... [2023-08-30 17:40:38,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:38" (1/1) ... [2023-08-30 17:40:38,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:38" (1/1) ... [2023-08-30 17:40:38,473 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:38" (1/1) ... [2023-08-30 17:40:38,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:38" (1/1) ... [2023-08-30 17:40:38,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 17:40:38,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 17:40:38,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 17:40:38,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 17:40:38,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:38" (1/1) ... [2023-08-30 17:40:38,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 17:40:38,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 17:40:38,503 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) [2023-08-30 17:40:38,525 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 [2023-08-30 17:40:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 17:40:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 17:40:38,538 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 17:40:38,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 17:40:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 17:40:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 17:40:38,541 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 17:40:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 17:40:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 17:40:38,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 17:40:38,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 17:40:38,543 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 17:40:38,645 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 17:40:38,647 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 17:40:38,765 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 17:40:38,770 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 17:40:38,770 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 17:40:38,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:40:38 BoogieIcfgContainer [2023-08-30 17:40:38,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 17:40:38,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 17:40:38,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 17:40:38,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 17:40:38,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 05:40:37" (1/3) ... [2023-08-30 17:40:38,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d617ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:40:38, skipping insertion in model container [2023-08-30 17:40:38,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 05:40:38" (2/3) ... [2023-08-30 17:40:38,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d617ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 05:40:38, skipping insertion in model container [2023-08-30 17:40:38,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:40:38" (3/3) ... [2023-08-30 17:40:38,779 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2023-08-30 17:40:38,785 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 17:40:38,793 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 17:40:38,793 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-30 17:40:38,793 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 17:40:38,851 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-30 17:40:38,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-08-30 17:40:38,974 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-08-30 17:40:38,975 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 17:40:38,978 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. [2023-08-30 17:40:38,980 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-08-30 17:40:38,983 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-08-30 17:40:38,986 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 17:40:39,001 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-08-30 17:40:39,007 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-08-30 17:40:39,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-08-30 17:40:39,020 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-08-30 17:40:39,024 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:40:39,025 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. [2023-08-30 17:40:39,027 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-08-30 17:40:40,971 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-08-30 17:40:40,971 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-08-30 17:40:40,981 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 17:40:40,986 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;@961a9e6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 17:40:40,987 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-30 17:40:40,989 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-30 17:40:40,989 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 17:40:40,989 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 17:40:40,990 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-30 17:40:40,990 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-08-30 17:40:40,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 17:40:40,994 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-08-30 17:40:41,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 17:40:41,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340246572] [2023-08-30 17:40:41,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 17:40:41,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 17:40:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 17:40:41,134 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 17:40:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 17:40:41,182 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 17:40:41,184 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 17:40:41,185 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-30 17:40:41,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-30 17:40:41,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-08-30 17:40:41,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 17:40:41,187 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-30 17:40:41,193 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 17:40:41,193 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 17:40:41,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 05:40:41 BasicIcfg [2023-08-30 17:40:41,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 17:40:41,207 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 17:40:41,207 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 17:40:41,208 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 17:40:41,208 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 05:40:38" (3/4) ... [2023-08-30 17:40:41,209 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-30 17:40:41,236 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 17:40:41,236 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 17:40:41,237 INFO L158 Benchmark]: Toolchain (without parser) took 3278.15ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 53.0MB in the beginning and 61.7MB in the end (delta: -8.7MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2023-08-30 17:40:41,238 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory is still 38.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:40:41,238 INFO L158 Benchmark]: CACSL2BoogieTranslator took 459.19ms. Allocated memory is still 75.5MB. Free memory was 52.7MB in the beginning and 52.4MB in the end (delta: 349.8kB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2023-08-30 17:40:41,238 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.88ms. Allocated memory is still 75.5MB. Free memory was 52.4MB in the beginning and 50.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:40:41,239 INFO L158 Benchmark]: Boogie Preprocessor took 18.53ms. Allocated memory is still 75.5MB. Free memory was 50.7MB in the beginning and 49.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 17:40:41,239 INFO L158 Benchmark]: RCFGBuilder took 295.60ms. Allocated memory is still 75.5MB. Free memory was 49.2MB in the beginning and 37.4MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 17:40:41,240 INFO L158 Benchmark]: TraceAbstraction took 2432.88ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 36.7MB in the beginning and 63.8MB in the end (delta: -27.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:40:41,240 INFO L158 Benchmark]: Witness Printer took 29.26ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 61.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 17:40:41,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory is still 38.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 459.19ms. Allocated memory is still 75.5MB. Free memory was 52.7MB in the beginning and 52.4MB in the end (delta: 349.8kB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.88ms. Allocated memory is still 75.5MB. Free memory was 52.4MB in the beginning and 50.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.53ms. Allocated memory is still 75.5MB. Free memory was 50.7MB in the beginning and 49.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 295.60ms. Allocated memory is still 75.5MB. Free memory was 49.2MB in the beginning and 37.4MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2432.88ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 36.7MB in the beginning and 63.8MB in the end (delta: -27.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 29.26ms. Allocated memory is still 92.3MB. Free memory was 63.1MB in the beginning and 61.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 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: 2.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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! [2023-08-30 17:40:41,263 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