./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_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/36-apron_17-traces-rpb-litmus_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 dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c --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 00:36:42,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 00:36:42,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 00:36:42,315 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 00:36:42,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 00:36:42,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 00:36:42,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 00:36:42,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 00:36:42,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 00:36:42,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 00:36:42,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 00:36:42,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 00:36:42,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 00:36:42,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 00:36:42,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 00:36:42,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 00:36:42,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 00:36:42,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 00:36:42,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 00:36:42,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 00:36:42,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 00:36:42,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 00:36:42,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 00:36:42,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 00:36:42,363 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 00:36:42,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 00:36:42,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 00:36:42,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 00:36:42,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 00:36:42,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 00:36:42,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 00:36:42,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 00:36:42,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 00:36:42,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 00:36:42,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 00:36:42,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 00:36:42,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 00:36:42,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 00:36:42,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 00:36:42,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 00:36:42,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 00:36:42,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-31 00:36:42,414 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 00:36:42,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 00:36:42,416 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 00:36:42,416 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 00:36:42,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 00:36:42,417 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 00:36:42,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 00:36:42,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 00:36:42,418 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 00:36:42,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 00:36:42,419 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 00:36:42,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 00:36:42,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 00:36:42,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 00:36:42,419 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 00:36:42,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 00:36:42,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 00:36:42,420 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 00:36:42,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 00:36:42,420 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 00:36:42,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 00:36:42,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 00:36:42,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 00:36:42,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 00:36:42,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:36:42,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 00:36:42,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 00:36:42,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 00:36:42,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 00:36:42,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 00:36:42,422 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 00:36:42,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 00:36:42,423 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 00:36:42,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 00:36:42,423 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 00:36:42,423 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-31 00:36:42,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 00:36:42,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 00:36:42,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 00:36:42,773 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 00:36:42,773 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 00:36:42,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-31 00:36:43,908 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 00:36:44,155 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 00:36:44,155 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-31 00:36:44,171 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd5c35814/a777888c16994153af7f6e9bee556926/FLAG9c05a0f75 [2023-08-31 00:36:44,194 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd5c35814/a777888c16994153af7f6e9bee556926 [2023-08-31 00:36:44,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 00:36:44,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 00:36:44,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 00:36:44,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 00:36:44,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 00:36:44,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:36:44" (1/1) ... [2023-08-31 00:36:44,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17cda8f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:44, skipping insertion in model container [2023-08-31 00:36:44,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:36:44" (1/1) ... [2023-08-31 00:36:44,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 00:36:44,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 00:36:44,381 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/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2023-08-31 00:36:44,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:36:44,528 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 00:36:44,541 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/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2023-08-31 00:36:44,583 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:36:44,619 INFO L208 MainTranslator]: Completed translation [2023-08-31 00:36:44,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:44 WrapperNode [2023-08-31 00:36:44,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 00:36:44,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 00:36:44,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 00:36:44,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 00:36:44,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:44" (1/1) ... [2023-08-31 00:36:44,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:44" (1/1) ... [2023-08-31 00:36:44,682 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2023-08-31 00:36:44,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 00:36:44,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 00:36:44,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 00:36:44,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 00:36:44,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:44" (1/1) ... [2023-08-31 00:36:44,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:44" (1/1) ... [2023-08-31 00:36:44,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:44" (1/1) ... [2023-08-31 00:36:44,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:44" (1/1) ... [2023-08-31 00:36:44,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:44" (1/1) ... [2023-08-31 00:36:44,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:44" (1/1) ... [2023-08-31 00:36:44,716 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:44" (1/1) ... [2023-08-31 00:36:44,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:44" (1/1) ... [2023-08-31 00:36:44,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 00:36:44,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 00:36:44,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 00:36:44,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 00:36:44,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:44" (1/1) ... [2023-08-31 00:36:44,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:36:44,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:36:44,762 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 00:36:44,770 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 00:36:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 00:36:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 00:36:44,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 00:36:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 00:36:44,798 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 00:36:44,798 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 00:36:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 00:36:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 00:36:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 00:36:44,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 00:36:44,800 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 00:36:44,938 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 00:36:44,940 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 00:36:45,121 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 00:36:45,128 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 00:36:45,128 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 00:36:45,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:36:45 BoogieIcfgContainer [2023-08-31 00:36:45,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 00:36:45,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 00:36:45,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 00:36:45,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 00:36:45,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 12:36:44" (1/3) ... [2023-08-31 00:36:45,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d560c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:36:45, skipping insertion in model container [2023-08-31 00:36:45,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:36:44" (2/3) ... [2023-08-31 00:36:45,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d560c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:36:45, skipping insertion in model container [2023-08-31 00:36:45,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:36:45" (3/3) ... [2023-08-31 00:36:45,138 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-31 00:36:45,146 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 00:36:45,153 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 00:36:45,153 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-31 00:36:45,154 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 00:36:45,226 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 00:36:45,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 73 transitions, 151 flow [2023-08-31 00:36:45,328 INFO L130 PetriNetUnfolder]: 2/72 cut-off events. [2023-08-31 00:36:45,329 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:36:45,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2023-08-31 00:36:45,334 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 73 transitions, 151 flow [2023-08-31 00:36:45,340 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 62 transitions, 127 flow [2023-08-31 00:36:45,344 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:36:45,369 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 62 transitions, 127 flow [2023-08-31 00:36:45,375 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 62 transitions, 127 flow [2023-08-31 00:36:45,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 62 transitions, 127 flow [2023-08-31 00:36:45,402 INFO L130 PetriNetUnfolder]: 1/62 cut-off events. [2023-08-31 00:36:45,402 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:36:45,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 1/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2023-08-31 00:36:45,403 INFO L119 LiptonReduction]: Number of co-enabled transitions 360 [2023-08-31 00:36:47,795 INFO L134 LiptonReduction]: Checked pairs total: 1016 [2023-08-31 00:36:47,795 INFO L136 LiptonReduction]: Total number of compositions: 52 [2023-08-31 00:36:47,807 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:36:47,812 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;@3c5ef87c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:36:47,812 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-31 00:36:47,815 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-08-31 00:36:47,815 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:36:47,816 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:36:47,816 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 00:36:47,817 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-31 00:36:47,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:36:47,821 INFO L85 PathProgramCache]: Analyzing trace with hash 235099129, now seen corresponding path program 1 times [2023-08-31 00:36:47,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:36:47,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140297907] [2023-08-31 00:36:47,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:36:47,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:36:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:36:47,967 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 00:36:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:36:48,041 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 00:36:48,043 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 00:36:48,044 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-08-31 00:36:48,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-31 00:36:48,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:36:48,047 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-31 00:36:48,055 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 00:36:48,056 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 00:36:48,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 12:36:48 BasicIcfg [2023-08-31 00:36:48,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 00:36:48,078 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 00:36:48,078 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 00:36:48,079 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 00:36:48,079 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:36:45" (3/4) ... [2023-08-31 00:36:48,081 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-31 00:36:48,123 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 00:36:48,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 00:36:48,124 INFO L158 Benchmark]: Toolchain (without parser) took 3926.12ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 39.3MB in the beginning and 39.6MB in the end (delta: -278.4kB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-31 00:36:48,124 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 71.3MB. Free memory was 48.3MB in the beginning and 48.2MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:36:48,125 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.65ms. Allocated memory is still 71.3MB. Free memory was 39.1MB in the beginning and 41.5MB in the end (delta: -2.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-31 00:36:48,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.11ms. Allocated memory is still 71.3MB. Free memory was 41.5MB in the beginning and 39.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:36:48,125 INFO L158 Benchmark]: Boogie Preprocessor took 44.52ms. Allocated memory is still 71.3MB. Free memory was 39.7MB in the beginning and 38.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:36:48,126 INFO L158 Benchmark]: RCFGBuilder took 401.07ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 38.3MB in the beginning and 63.4MB in the end (delta: -25.1MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2023-08-31 00:36:48,126 INFO L158 Benchmark]: TraceAbstraction took 2945.54ms. Allocated memory is still 90.2MB. Free memory was 62.5MB in the beginning and 41.7MB in the end (delta: 20.8MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2023-08-31 00:36:48,126 INFO L158 Benchmark]: Witness Printer took 44.70ms. Allocated memory is still 90.2MB. Free memory was 41.7MB in the beginning and 39.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:36:48,128 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 71.3MB. Free memory was 48.3MB in the beginning and 48.2MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 421.65ms. Allocated memory is still 71.3MB. Free memory was 39.1MB in the beginning and 41.5MB in the end (delta: -2.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.11ms. Allocated memory is still 71.3MB. Free memory was 41.5MB in the beginning and 39.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.52ms. Allocated memory is still 71.3MB. Free memory was 39.7MB in the beginning and 38.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 401.07ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 38.3MB in the beginning and 63.4MB in the end (delta: -25.1MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2945.54ms. Allocated memory is still 90.2MB. Free memory was 62.5MB in the beginning and 41.7MB in the end (delta: 20.8MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * Witness Printer took 44.70ms. Allocated memory is still 90.2MB. Free memory was 41.7MB in the beginning and 39.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 65 PlacesBefore, 17 PlacesAfterwards, 62 TransitionsBefore, 14 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, 1016 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 449, independent: 327, independent conditional: 0, independent unconditional: 327, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 195, independent: 170, independent conditional: 0, independent unconditional: 170, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 449, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 195, unknown conditional: 0, unknown unconditional: 195] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, 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 g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [A={3:0}, B={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=42] - UnprovableResult [Line: 697]: 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, 84 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 5 NumberOfCodeBlocks, 5 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 00:36:48,150 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