./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 AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/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 AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 18:24:36,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 18:24:36,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 18:24:36,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 18:24:36,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 18:24:36,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 18:24:36,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 18:24:36,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 18:24:36,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 18:24:36,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 18:24:36,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 18:24:36,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 18:24:36,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 18:24:36,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 18:24:36,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 18:24:36,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 18:24:36,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 18:24:36,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 18:24:36,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 18:24:36,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 18:24:36,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 18:24:36,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 18:24:36,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 18:24:36,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 18:24:36,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 18:24:36,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 18:24:36,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 18:24:36,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 18:24:36,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 18:24:36,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 18:24:36,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 18:24:36,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 18:24:36,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 18:24:36,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 18:24:36,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 18:24:36,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 18:24:36,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 18:24:36,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 18:24:36,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 18:24:36,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 18:24:36,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 18:24:36,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-08-30 18:24:36,211 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 18:24:36,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 18:24:36,212 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 18:24:36,212 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 18:24:36,213 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 18:24:36,213 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 18:24:36,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 18:24:36,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 18:24:36,214 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 18:24:36,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 18:24:36,214 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 18:24:36,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 18:24:36,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 18:24:36,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 18:24:36,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 18:24:36,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 18:24:36,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 18:24:36,216 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 18:24:36,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 18:24:36,216 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 18:24:36,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 18:24:36,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 18:24:36,217 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 18:24:36,217 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 18:24:36,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 18:24:36,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 18:24:36,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 18:24:36,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 18:24:36,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 18:24:36,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 18:24:36,218 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 18:24:36,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 18:24:36,218 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 18:24:36,219 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 18:24:36,219 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 18:24:36,219 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 18:24:36,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 18:24:36,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 18:24:36,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 18:24:36,551 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 18:24:36,552 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 18:24:36,553 INFO L432 ainManager$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 [2023-08-30 18:24:37,713 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 18:24:37,994 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 18:24:37,995 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-30 18:24:38,008 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1dfc2e0a/6cebea186c10494ab4a5b565962813f7/FLAG96e3d48c8 [2023-08-30 18:24:38,026 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1dfc2e0a/6cebea186c10494ab4a5b565962813f7 [2023-08-30 18:24:38,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 18:24:38,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 18:24:38,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 18:24:38,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 18:24:38,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 18:24:38,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 06:24:38" (1/1) ... [2023-08-30 18:24:38,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9ef355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 06:24:38, skipping insertion in model container [2023-08-30 18:24:38,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 06:24:38" (1/1) ... [2023-08-30 18:24:38,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 18:24:38,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 18:24:38,269 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] [2023-08-30 18:24:38,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 18:24:38,443 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 18:24:38,457 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] [2023-08-30 18:24:38,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 18:24:38,579 INFO L208 MainTranslator]: Completed translation [2023-08-30 18:24:38,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 06:24:38 WrapperNode [2023-08-30 18:24:38,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 18:24:38,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 18:24:38,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 18:24:38,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 18:24:38,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 06:24:38" (1/1) ... [2023-08-30 18:24:38,626 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 06:24:38" (1/1) ... [2023-08-30 18:24:38,650 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2023-08-30 18:24:38,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 18:24:38,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 18:24:38,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 18:24:38,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 18:24:38,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 06:24:38" (1/1) ... [2023-08-30 18:24:38,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 06:24:38" (1/1) ... [2023-08-30 18:24:38,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 06:24:38" (1/1) ... [2023-08-30 18:24:38,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 06:24:38" (1/1) ... [2023-08-30 18:24:38,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 06:24:38" (1/1) ... [2023-08-30 18:24:38,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 06:24:38" (1/1) ... [2023-08-30 18:24:38,683 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 06:24:38" (1/1) ... [2023-08-30 18:24:38,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 06:24:38" (1/1) ... [2023-08-30 18:24:38,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 18:24:38,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 18:24:38,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 18:24:38,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 18:24:38,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 06:24:38" (1/1) ... [2023-08-30 18:24:38,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 18:24:38,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 18:24:38,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-30 18:24:38,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-30 18:24:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 18:24:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 18:24:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 18:24:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 18:24:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-30 18:24:38,767 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-30 18:24:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 18:24:38,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 18:24:38,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 18:24:38,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 18:24:38,772 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 18:24:38,874 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 18:24:38,876 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 18:24:39,067 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 18:24:39,075 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 18:24:39,076 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-30 18:24:39,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 06:24:39 BoogieIcfgContainer [2023-08-30 18:24:39,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 18:24:39,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 18:24:39,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 18:24:39,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 18:24:39,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 06:24:38" (1/3) ... [2023-08-30 18:24:39,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f44afe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 06:24:39, skipping insertion in model container [2023-08-30 18:24:39,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 06:24:38" (2/3) ... [2023-08-30 18:24:39,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f44afe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 06:24:39, skipping insertion in model container [2023-08-30 18:24:39,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 06:24:39" (3/3) ... [2023-08-30 18:24:39,088 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-08-30 18:24:39,093 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 18:24:39,100 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 18:24:39,100 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-08-30 18:24:39,100 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 18:24:39,144 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-30 18:24:39,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 73 transitions, 151 flow [2023-08-30 18:24:39,210 INFO L130 PetriNetUnfolder]: 2/72 cut-off events. [2023-08-30 18:24:39,219 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 18:24:39,228 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. [2023-08-30 18:24:39,228 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 73 transitions, 151 flow [2023-08-30 18:24:39,232 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 62 transitions, 127 flow [2023-08-30 18:24:39,238 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 18:24:39,254 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 62 transitions, 127 flow [2023-08-30 18:24:39,261 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 62 transitions, 127 flow [2023-08-30 18:24:39,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 62 transitions, 127 flow [2023-08-30 18:24:39,279 INFO L130 PetriNetUnfolder]: 1/62 cut-off events. [2023-08-30 18:24:39,279 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 18:24:39,280 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. [2023-08-30 18:24:39,281 INFO L119 LiptonReduction]: Number of co-enabled transitions 360 [2023-08-30 18:24:41,537 INFO L134 LiptonReduction]: Checked pairs total: 1016 [2023-08-30 18:24:41,538 INFO L136 LiptonReduction]: Total number of compositions: 52 [2023-08-30 18:24:41,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 18:24:41,555 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;@c443c45, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 18:24:41,555 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-08-30 18:24:41,559 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-08-30 18:24:41,559 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 18:24:41,559 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 18:24:41,559 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-30 18:24:41,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-30 18:24:41,563 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 18:24:41,563 INFO L85 PathProgramCache]: Analyzing trace with hash 235099129, now seen corresponding path program 1 times [2023-08-30 18:24:41,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 18:24:41,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54412598] [2023-08-30 18:24:41,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 18:24:41,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 18:24:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 18:24:41,669 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 18:24:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 18:24:41,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 18:24:41,707 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 18:24:41,708 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-08-30 18:24:41,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-08-30 18:24:41,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 18:24:41,710 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-30 18:24:41,715 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 18:24:41,716 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 18:24:41,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 06:24:41 BasicIcfg [2023-08-30 18:24:41,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 18:24:41,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 18:24:41,732 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 18:24:41,732 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 18:24:41,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 06:24:39" (3/4) ... [2023-08-30 18:24:41,734 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-30 18:24:41,764 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 18:24:41,764 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 18:24:41,765 INFO L158 Benchmark]: Toolchain (without parser) took 3736.09ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 53.8MB in the beginning and 51.1MB in the end (delta: 2.7MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2023-08-30 18:24:41,766 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 77.6MB. Free memory was 54.9MB in the beginning and 54.8MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 18:24:41,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.67ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 53.6MB in the beginning and 71.4MB in the end (delta: -17.8MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2023-08-30 18:24:41,767 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.91ms. Allocated memory is still 94.4MB. Free memory was 71.4MB in the beginning and 69.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 18:24:41,767 INFO L158 Benchmark]: Boogie Preprocessor took 39.53ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 68.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 18:24:41,767 INFO L158 Benchmark]: RCFGBuilder took 382.91ms. Allocated memory is still 94.4MB. Free memory was 68.0MB in the beginning and 55.0MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-08-30 18:24:41,768 INFO L158 Benchmark]: TraceAbstraction took 2648.61ms. Allocated memory is still 94.4MB. Free memory was 54.1MB in the beginning and 53.2MB in the end (delta: 911.5kB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. [2023-08-30 18:24:41,768 INFO L158 Benchmark]: Witness Printer took 33.07ms. Allocated memory is still 94.4MB. Free memory was 53.2MB in the beginning and 51.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 18:24:41,770 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 77.6MB. Free memory was 54.9MB in the beginning and 54.8MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.67ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 53.6MB in the beginning and 71.4MB in the end (delta: -17.8MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.91ms. Allocated memory is still 94.4MB. Free memory was 71.4MB in the beginning and 69.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.53ms. Allocated memory is still 94.4MB. Free memory was 69.3MB in the beginning and 68.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 382.91ms. Allocated memory is still 94.4MB. Free memory was 68.0MB in the beginning and 55.0MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2648.61ms. Allocated memory is still 94.4MB. Free memory was 54.1MB in the beginning and 53.2MB in the end (delta: 911.5kB). Peak memory consumption was 1.9MB. Max. memory is 16.1GB. * Witness Printer took 33.07ms. Allocated memory is still 94.4MB. Free memory was 53.2MB in the beginning and 51.1MB in the end (delta: 2.2MB). 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: 2.3s, 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: 2.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, 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, 0.0s 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! [2023-08-30 18:24:41,803 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