./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.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_neg.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 efd273c7d755fee5b08c1ba81e4b1fd2265522d7f0703d6f8ec42ad387cd2968 --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 00:37:24,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 00:37:24,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 00:37:24,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 00:37:24,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 00:37:24,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 00:37:24,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 00:37:24,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 00:37:24,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 00:37:24,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 00:37:24,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 00:37:24,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 00:37:24,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 00:37:24,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 00:37:24,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 00:37:24,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 00:37:24,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 00:37:24,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 00:37:24,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 00:37:24,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 00:37:24,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 00:37:24,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 00:37:24,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 00:37:24,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 00:37:24,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 00:37:24,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 00:37:24,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 00:37:24,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 00:37:24,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 00:37:24,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 00:37:24,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 00:37:24,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 00:37:24,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 00:37:24,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 00:37:24,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 00:37:24,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 00:37:24,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 00:37:24,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 00:37:24,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 00:37:24,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 00:37:24,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 00:37:24,862 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-31 00:37:24,893 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 00:37:24,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 00:37:24,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 00:37:24,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 00:37:24,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 00:37:24,896 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 00:37:24,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 00:37:24,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 00:37:24,897 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 00:37:24,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 00:37:24,898 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 00:37:24,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 00:37:24,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 00:37:24,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 00:37:24,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 00:37:24,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 00:37:24,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 00:37:24,899 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 00:37:24,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 00:37:24,899 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 00:37:24,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 00:37:24,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 00:37:24,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 00:37:24,900 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 00:37:24,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:37:24,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 00:37:24,901 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 00:37:24,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 00:37:24,901 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 00:37:24,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 00:37:24,902 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 00:37:24,902 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 00:37:24,902 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 00:37:24,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 00:37:24,903 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 00:37:24,903 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efd273c7d755fee5b08c1ba81e4b1fd2265522d7f0703d6f8ec42ad387cd2968 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-31 00:37:25,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 00:37:25,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 00:37:25,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 00:37:25,243 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 00:37:25,246 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 00:37:25,247 INFO L432 ainManager$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_neg.i [2023-08-31 00:37:26,491 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 00:37:26,749 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 00:37:26,750 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_neg.i [2023-08-31 00:37:26,759 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66918ca79/b756a04570874f41bff88459fbac0be1/FLAG01283ea39 [2023-08-31 00:37:26,771 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66918ca79/b756a04570874f41bff88459fbac0be1 [2023-08-31 00:37:26,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 00:37:26,775 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 00:37:26,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 00:37:26,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 00:37:26,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 00:37:26,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:37:26" (1/1) ... [2023-08-31 00:37:26,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36ef536a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:26, skipping insertion in model container [2023-08-31 00:37:26,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 12:37:26" (1/1) ... [2023-08-31 00:37:26,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 00:37:26,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 00:37:26,953 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_neg.i[1102,1115] [2023-08-31 00:37:27,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:37:27,098 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 00:37:27,110 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_neg.i[1102,1115] [2023-08-31 00:37:27,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 00:37:27,170 INFO L208 MainTranslator]: Completed translation [2023-08-31 00:37:27,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:27 WrapperNode [2023-08-31 00:37:27,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 00:37:27,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 00:37:27,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 00:37:27,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 00:37:27,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:27" (1/1) ... [2023-08-31 00:37:27,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:27" (1/1) ... [2023-08-31 00:37:27,221 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2023-08-31 00:37:27,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 00:37:27,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 00:37:27,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 00:37:27,224 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 00:37:27,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:27" (1/1) ... [2023-08-31 00:37:27,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:27" (1/1) ... [2023-08-31 00:37:27,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:27" (1/1) ... [2023-08-31 00:37:27,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:27" (1/1) ... [2023-08-31 00:37:27,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:27" (1/1) ... [2023-08-31 00:37:27,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:27" (1/1) ... [2023-08-31 00:37:27,257 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:27" (1/1) ... [2023-08-31 00:37:27,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:27" (1/1) ... [2023-08-31 00:37:27,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 00:37:27,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 00:37:27,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 00:37:27,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 00:37:27,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:27" (1/1) ... [2023-08-31 00:37:27,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 00:37:27,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 00:37:27,298 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 00:37:27,321 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 00:37:27,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 00:37:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 00:37:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 00:37:27,337 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-31 00:37:27,337 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-31 00:37:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 00:37:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 00:37:27,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 00:37:27,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 00:37:27,339 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 00:37:27,517 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 00:37:27,519 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 00:37:27,639 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 00:37:27,644 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 00:37:27,645 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 00:37:27,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:37:27 BoogieIcfgContainer [2023-08-31 00:37:27,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 00:37:27,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 00:37:27,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 00:37:27,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 00:37:27,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 12:37:26" (1/3) ... [2023-08-31 00:37:27,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37eff0cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:37:27, skipping insertion in model container [2023-08-31 00:37:27,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 12:37:27" (2/3) ... [2023-08-31 00:37:27,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37eff0cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 12:37:27, skipping insertion in model container [2023-08-31 00:37:27,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:37:27" (3/3) ... [2023-08-31 00:37:27,654 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_neg.i [2023-08-31 00:37:27,661 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 00:37:27,669 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 00:37:27,669 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-31 00:37:27,669 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 00:37:27,702 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-31 00:37:27,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 38 transitions, 81 flow [2023-08-31 00:37:27,754 INFO L130 PetriNetUnfolder]: 1/37 cut-off events. [2023-08-31 00:37:27,754 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:37:27,758 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 00:37:27,758 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 38 transitions, 81 flow [2023-08-31 00:37:27,761 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 32 transitions, 67 flow [2023-08-31 00:37:27,765 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 00:37:27,776 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 32 transitions, 67 flow [2023-08-31 00:37:27,778 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 32 transitions, 67 flow [2023-08-31 00:37:27,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 67 flow [2023-08-31 00:37:27,797 INFO L130 PetriNetUnfolder]: 0/32 cut-off events. [2023-08-31 00:37:27,797 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:37:27,798 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 00:37:27,805 INFO L119 LiptonReduction]: Number of co-enabled transitions 140 [2023-08-31 00:37:28,701 INFO L134 LiptonReduction]: Checked pairs total: 88 [2023-08-31 00:37:28,702 INFO L136 LiptonReduction]: Total number of compositions: 28 [2023-08-31 00:37:28,723 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 00:37:28,730 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;@571be557, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 00:37:28,730 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-31 00:37:28,735 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-08-31 00:37:28,735 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 00:37:28,736 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 00:37:28,736 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-08-31 00:37:28,738 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 00:37:28,743 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 00:37:28,743 INFO L85 PathProgramCache]: Analyzing trace with hash 153046, now seen corresponding path program 1 times [2023-08-31 00:37:28,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 00:37:28,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937627373] [2023-08-31 00:37:28,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 00:37:28,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 00:37:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:37:28,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 00:37:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 00:37:28,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 00:37:28,906 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 00:37:28,907 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-08-31 00:37:28,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-31 00:37:28,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-08-31 00:37:28,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 00:37:28,911 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-31 00:37:28,918 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 00:37:28,918 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 00:37:28,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 12:37:28 BasicIcfg [2023-08-31 00:37:28,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 00:37:28,936 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 00:37:28,936 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 00:37:28,936 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 00:37:28,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 12:37:27" (3/4) ... [2023-08-31 00:37:28,938 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-31 00:37:28,973 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 00:37:28,973 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 00:37:28,974 INFO L158 Benchmark]: Toolchain (without parser) took 2199.26ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 51.7MB in the beginning and 56.0MB in the end (delta: -4.3MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2023-08-31 00:37:28,974 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 75.5MB. Free memory was 52.8MB in the beginning and 52.7MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:37:28,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.15ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 51.5MB in the beginning and 68.3MB in the end (delta: -16.8MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2023-08-31 00:37:28,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.73ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 66.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:37:28,976 INFO L158 Benchmark]: Boogie Preprocessor took 40.41ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 65.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:37:28,976 INFO L158 Benchmark]: RCFGBuilder took 381.69ms. Allocated memory is still 92.3MB. Free memory was 65.3MB in the beginning and 54.6MB in the end (delta: 10.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-31 00:37:28,976 INFO L158 Benchmark]: TraceAbstraction took 1287.46ms. Allocated memory is still 92.3MB. Free memory was 53.9MB in the beginning and 57.6MB in the end (delta: -3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 00:37:28,977 INFO L158 Benchmark]: Witness Printer took 37.07ms. Allocated memory is still 92.3MB. Free memory was 57.6MB in the beginning and 56.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 00:37:28,979 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 75.5MB. Free memory was 52.8MB in the beginning and 52.7MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.15ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 51.5MB in the beginning and 68.3MB in the end (delta: -16.8MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.73ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 66.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.41ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 65.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 381.69ms. Allocated memory is still 92.3MB. Free memory was 65.3MB in the beginning and 54.6MB in the end (delta: 10.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1287.46ms. Allocated memory is still 92.3MB. Free memory was 53.9MB in the beginning and 57.6MB in the end (delta: -3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 37.07ms. Allocated memory is still 92.3MB. Free memory was 57.6MB in the beginning and 56.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.9s, 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: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, 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 00:37:28,995 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