./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_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_41-threadenter-no-locals_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 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 --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 00:37:31,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 00:37:31,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 00:37:31,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 00:37:31,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 00:37:31,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 00:37:31,399 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 00:37:31,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 00:37:31,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 00:37:31,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 00:37:31,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 00:37:31,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 00:37:31,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 00:37:31,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 00:37:31,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 00:37:31,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 00:37:31,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 00:37:31,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 00:37:31,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 00:37:31,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 00:37:31,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 00:37:31,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 00:37:31,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 00:37:31,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 00:37:31,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 00:37:31,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 00:37:31,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 00:37:31,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 00:37:31,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 00:37:31,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 00:37:31,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 00:37:31,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 00:37:31,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 00:37:31,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 00:37:31,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 00:37:31,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 00:37:31,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 00:37:31,467 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 00:37:31,467 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 00:37:31,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 00:37:31,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 00:37:31,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-31 00:37:31,509 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 00:37:31,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 00:37:31,511 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 00:37:31,511 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 00:37:31,512 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 00:37:31,512 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 00:37:31,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 00:37:31,513 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 00:37:31,513 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 00:37:31,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 00:37:31,514 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 00:37:31,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 00:37:31,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 00:37:31,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 00:37:31,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 00:37:31,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 00:37:31,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 00:37:31,515 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 00:37:31,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 00:37:31,516 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 00:37:31,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 00:37:31,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 00:37:31,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 00:37:31,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 00:37:31,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:37:31,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 00:37:31,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 00:37:31,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 00:37:31,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 00:37:31,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 00:37:31,518 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 00:37:31,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 00:37:31,518 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 00:37:31,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 00:37:31,519 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 00:37:31,519 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89785c0d24fcdefc69967ffaff157c690c4dc9452939a731c93e500faa24c4d7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-31 00:37:31,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 00:37:31,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 00:37:31,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 00:37:31,851 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 00:37:31,852 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 00:37:31,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2023-08-31 00:37:32,941 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 00:37:33,168 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 00:37:33,168 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2023-08-31 00:37:33,182 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c83b55734/7a286ec0eba44303a66993d9d62f5b34/FLAGef9e31fa3 [2023-08-31 00:37:33,202 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c83b55734/7a286ec0eba44303a66993d9d62f5b34 [2023-08-31 00:37:33,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 00:37:33,206 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 00:37:33,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 00:37:33,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 00:37:33,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 00:37:33,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:37:33" (1/1) ... [2023-08-31 00:37:33,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d5efa74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:33, skipping insertion in model container [2023-08-31 00:37:33,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:37:33" (1/1) ... [2023-08-31 00:37:33,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 00:37:33,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 00:37:33,436 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_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2023-08-31 00:37:33,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:37:33,601 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 00:37:33,614 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_41-threadenter-no-locals_unknown_1_pos.i[1102,1115] [2023-08-31 00:37:33,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:37:33,694 INFO L208 MainTranslator]: Completed translation [2023-08-31 00:37:33,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:33 WrapperNode [2023-08-31 00:37:33,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 00:37:33,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 00:37:33,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 00:37:33,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 00:37:33,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:33" (1/1) ... [2023-08-31 00:37:33,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:33" (1/1) ... [2023-08-31 00:37:33,752 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2023-08-31 00:37:33,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 00:37:33,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 00:37:33,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 00:37:33,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 00:37:33,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:33" (1/1) ... [2023-08-31 00:37:33,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:33" (1/1) ... [2023-08-31 00:37:33,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:33" (1/1) ... [2023-08-31 00:37:33,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:33" (1/1) ... [2023-08-31 00:37:33,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:33" (1/1) ... [2023-08-31 00:37:33,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:33" (1/1) ... [2023-08-31 00:37:33,776 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:33" (1/1) ... [2023-08-31 00:37:33,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:33" (1/1) ... [2023-08-31 00:37:33,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 00:37:33,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 00:37:33,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 00:37:33,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 00:37:33,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:33" (1/1) ... [2023-08-31 00:37:33,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:37:33,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:37:33,818 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 00:37:33,841 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 00:37:33,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 00:37:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 00:37:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 00:37:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 00:37:33,862 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 00:37:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 00:37:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 00:37:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 00:37:33,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 00:37:33,864 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 00:37:34,010 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 00:37:34,012 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 00:37:34,138 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 00:37:34,144 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 00:37:34,145 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 00:37:34,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:37:34 BoogieIcfgContainer [2023-08-31 00:37:34,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 00:37:34,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 00:37:34,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 00:37:34,154 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 00:37:34,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 12:37:33" (1/3) ... [2023-08-31 00:37:34,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@200ac186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:37:34, skipping insertion in model container [2023-08-31 00:37:34,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:33" (2/3) ... [2023-08-31 00:37:34,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@200ac186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:37:34, skipping insertion in model container [2023-08-31 00:37:34,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:37:34" (3/3) ... [2023-08-31 00:37:34,157 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2023-08-31 00:37:34,166 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 00:37:34,173 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 00:37:34,174 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-31 00:37:34,174 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 00:37:34,229 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 00:37:34,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 38 transitions, 81 flow [2023-08-31 00:37:34,300 INFO L130 PetriNetUnfolder]: 1/37 cut-off events. [2023-08-31 00:37:34,300 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:37:34,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 37 events. 1/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-08-31 00:37:34,303 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 38 transitions, 81 flow [2023-08-31 00:37:34,306 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 32 transitions, 67 flow [2023-08-31 00:37:34,309 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:37:34,322 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 32 transitions, 67 flow [2023-08-31 00:37:34,326 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 32 transitions, 67 flow [2023-08-31 00:37:34,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 67 flow [2023-08-31 00:37:34,347 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2023-08-31 00:37:34,347 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:37:34,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 32 events. 0/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-08-31 00:37:34,348 INFO L119 LiptonReduction]: Number of co-enabled transitions 140 [2023-08-31 00:37:35,391 INFO L134 LiptonReduction]: Checked pairs total: 88 [2023-08-31 00:37:35,392 INFO L136 LiptonReduction]: Total number of compositions: 28 [2023-08-31 00:37:35,403 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:37:35,409 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;@63d5420, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:37:35,409 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-31 00:37:35,411 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-31 00:37:35,411 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:37:35,411 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:35,412 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-31 00:37:35,414 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 00:37:35,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:35,419 INFO L85 PathProgramCache]: Analyzing trace with hash 153046, now seen corresponding path program 1 times [2023-08-31 00:37:35,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:35,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666095327] [2023-08-31 00:37:35,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:35,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:37:35,547 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 00:37:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:37:35,574 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 00:37:35,576 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 00:37:35,577 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-31 00:37:35,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-31 00:37:35,578 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-08-31 00:37:35,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:37:35,579 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-31 00:37:35,585 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 00:37:35,585 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 00:37:35,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 12:37:35 BasicIcfg [2023-08-31 00:37:35,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 00:37:35,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 00:37:35,599 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 00:37:35,599 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 00:37:35,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:37:34" (3/4) ... [2023-08-31 00:37:35,600 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-31 00:37:35,627 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 00:37:35,627 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 00:37:35,628 INFO L158 Benchmark]: Toolchain (without parser) took 2422.29ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 60.4MB in the beginning and 73.4MB in the end (delta: -13.0MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-08-31 00:37:35,629 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 62.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:37:35,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.67ms. Allocated memory is still 83.9MB. Free memory was 60.2MB in the beginning and 62.6MB in the end (delta: -2.5MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2023-08-31 00:37:35,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.70ms. Allocated memory is still 83.9MB. Free memory was 62.6MB in the beginning and 60.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:37:35,630 INFO L158 Benchmark]: Boogie Preprocessor took 23.95ms. Allocated memory is still 83.9MB. Free memory was 60.9MB in the beginning and 59.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:37:35,630 INFO L158 Benchmark]: RCFGBuilder took 370.13ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 49.0MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-31 00:37:35,631 INFO L158 Benchmark]: TraceAbstraction took 1446.46ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 48.5MB in the beginning and 74.9MB in the end (delta: -26.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:37:35,631 INFO L158 Benchmark]: Witness Printer took 28.88ms. Allocated memory is still 100.7MB. Free memory was 74.9MB in the beginning and 73.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:37:35,633 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 62.9MB. Free memory is still 41.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 485.67ms. Allocated memory is still 83.9MB. Free memory was 60.2MB in the beginning and 62.6MB in the end (delta: -2.5MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.70ms. Allocated memory is still 83.9MB. Free memory was 62.6MB in the beginning and 60.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.95ms. Allocated memory is still 83.9MB. Free memory was 60.9MB in the beginning and 59.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 370.13ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 49.0MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1446.46ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 48.5MB in the beginning and 74.9MB in the end (delta: -26.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 28.88ms. Allocated memory is still 100.7MB. Free memory was 74.9MB in the beginning and 73.4MB in the end (delta: 1.5MB). 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: 1.1s, 36 PlacesBefore, 8 PlacesAfterwards, 32 TransitionsBefore, 4 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 28 TotalNumberOfCompositions, 88 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 88, independent: 88, independent conditional: 0, independent unconditional: 88, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 69, independent: 69, independent conditional: 0, independent unconditional: 69, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 88, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 69, unknown conditional: 0, unknown unconditional: 69] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: [L688] 0 int x = 3; [L689] 0 pthread_t id; [L690] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x=3] [L683] 1 int x = __VERIFIER_nondet_int(); [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0] - UnprovableResult [Line: 690]: 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, 54 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: 1.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-31 00:37:35,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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