/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 21:15:38,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 21:15:38,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 21:15:38,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 21:15:38,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 21:15:38,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 21:15:38,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 21:15:38,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 21:15:38,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 21:15:38,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 21:15:38,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 21:15:38,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 21:15:38,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 21:15:38,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 21:15:38,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 21:15:38,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 21:15:38,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 21:15:38,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 21:15:38,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 21:15:38,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 21:15:38,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 21:15:38,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 21:15:38,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 21:15:38,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 21:15:38,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 21:15:38,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 21:15:38,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 21:15:38,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 21:15:38,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 21:15:38,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-11 21:15:38,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 21:15:38,292 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 21:15:38,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 21:15:38,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-12-11 21:15:38,323 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 21:15:38,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 21:15:38,325 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 21:15:38,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 21:15:38,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 21:15:38,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 21:15:38,326 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 21:15:38,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 21:15:38,326 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 21:15:38,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 21:15:38,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 21:15:38,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 21:15:38,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 21:15:38,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 21:15:38,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 21:15:38,328 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 21:15:38,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 21:15:38,328 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 21:15:38,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 21:15:38,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 21:15:38,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 21:15:38,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 21:15:38,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 21:15:38,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:15:38,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 21:15:38,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 21:15:38,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 21:15:38,329 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 21:15:38,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 21:15:38,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 21:15:38,329 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 21:15:38,329 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-11 21:15:38,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 21:15:38,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 21:15:38,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 21:15:38,649 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 21:15:38,649 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 21:15:38,650 INFO L432 ainManager$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 [2022-12-11 21:15:39,627 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 21:15:39,802 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 21:15:39,802 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-11 21:15:39,811 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/152bb93ca/f65cef9f77a4452db87a82dccd500bb5/FLAGc49c4e0e1 [2022-12-11 21:15:39,821 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/152bb93ca/f65cef9f77a4452db87a82dccd500bb5 [2022-12-11 21:15:39,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 21:15:39,824 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 21:15:39,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 21:15:39,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 21:15:39,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 21:15:39,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:15:39" (1/1) ... [2022-12-11 21:15:39,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a06c767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:39, skipping insertion in model container [2022-12-11 21:15:39,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:15:39" (1/1) ... [2022-12-11 21:15:39,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 21:15:39,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 21:15:39,983 WARN L237 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] [2022-12-11 21:15:40,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:15:40,115 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 21:15:40,125 WARN L237 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] [2022-12-11 21:15:40,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:15:40,186 INFO L208 MainTranslator]: Completed translation [2022-12-11 21:15:40,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:40 WrapperNode [2022-12-11 21:15:40,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 21:15:40,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 21:15:40,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 21:15:40,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 21:15:40,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:40" (1/1) ... [2022-12-11 21:15:40,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:40" (1/1) ... [2022-12-11 21:15:40,224 INFO L138 Inliner]: procedures = 162, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2022-12-11 21:15:40,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 21:15:40,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 21:15:40,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 21:15:40,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 21:15:40,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:40" (1/1) ... [2022-12-11 21:15:40,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:40" (1/1) ... [2022-12-11 21:15:40,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:40" (1/1) ... [2022-12-11 21:15:40,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:40" (1/1) ... [2022-12-11 21:15:40,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:40" (1/1) ... [2022-12-11 21:15:40,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:40" (1/1) ... [2022-12-11 21:15:40,250 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:40" (1/1) ... [2022-12-11 21:15:40,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:40" (1/1) ... [2022-12-11 21:15:40,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 21:15:40,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 21:15:40,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 21:15:40,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 21:15:40,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:40" (1/1) ... [2022-12-11 21:15:40,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:15:40,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:15:40,285 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) [2022-12-11 21:15:40,312 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 [2022-12-11 21:15:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 21:15:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 21:15:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 21:15:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-11 21:15:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-11 21:15:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 21:15:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 21:15:40,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 21:15:40,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 21:15:40,324 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 21:15:40,459 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 21:15:40,460 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 21:15:40,563 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 21:15:40,567 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 21:15:40,567 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-11 21:15:40,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:15:40 BoogieIcfgContainer [2022-12-11 21:15:40,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 21:15:40,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 21:15:40,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 21:15:40,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 21:15:40,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 09:15:39" (1/3) ... [2022-12-11 21:15:40,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59108842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:15:40, skipping insertion in model container [2022-12-11 21:15:40,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:40" (2/3) ... [2022-12-11 21:15:40,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59108842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:15:40, skipping insertion in model container [2022-12-11 21:15:40,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:15:40" (3/3) ... [2022-12-11 21:15:40,574 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_41-threadenter-no-locals_unknown_1_pos.i [2022-12-11 21:15:40,590 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 21:15:40,590 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 21:15:40,590 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 21:15:40,627 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-11 21:15:40,647 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions, 79 flow [2022-12-11 21:15:40,664 INFO L130 PetriNetUnfolder]: 1/36 cut-off events. [2022-12-11 21:15:40,664 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 21:15:40,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 1/36 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. 0/34 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2022-12-11 21:15:40,667 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 37 transitions, 79 flow [2022-12-11 21:15:40,669 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 31 transitions, 65 flow [2022-12-11 21:15:40,676 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 21:15:40,680 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=false, 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;@586c94bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 21:15:40,680 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-11 21:15:40,688 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2022-12-11 21:15:40,688 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 21:15:40,689 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:15:40,689 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:15:40,689 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-11 21:15:40,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:15:40,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1900788141, now seen corresponding path program 1 times [2022-12-11 21:15:40,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:15:40,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542170513] [2022-12-11 21:15:40,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:15:40,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:15:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-11 21:15:40,835 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-11 21:15:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-11 21:15:40,859 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-11 21:15:40,861 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-11 21:15:40,861 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-11 21:15:40,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-11 21:15:40,863 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-11 21:15:40,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 21:15:40,863 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-11 21:15:40,868 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 21:15:40,868 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 21:15:40,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 09:15:40 BasicIcfg [2022-12-11 21:15:40,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 21:15:40,894 INFO L158 Benchmark]: Toolchain (without parser) took 1069.68ms. Allocated memory is still 175.1MB. Free memory was 149.8MB in the beginning and 94.8MB in the end (delta: 55.0MB). Peak memory consumption was 54.5MB. Max. memory is 8.0GB. [2022-12-11 21:15:40,894 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 175.1MB. Free memory is still 151.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 21:15:40,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.74ms. Allocated memory is still 175.1MB. Free memory was 149.8MB in the beginning and 131.5MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2022-12-11 21:15:40,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.27ms. Allocated memory is still 175.1MB. Free memory was 131.5MB in the beginning and 129.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 21:15:40,895 INFO L158 Benchmark]: Boogie Preprocessor took 26.75ms. Allocated memory is still 175.1MB. Free memory was 129.8MB in the beginning and 128.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-11 21:15:40,895 INFO L158 Benchmark]: RCFGBuilder took 315.95ms. Allocated memory is still 175.1MB. Free memory was 128.3MB in the beginning and 117.3MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-11 21:15:40,896 INFO L158 Benchmark]: TraceAbstraction took 322.88ms. Allocated memory is still 175.1MB. Free memory was 116.3MB in the beginning and 94.8MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2022-12-11 21:15:40,899 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 175.1MB. Free memory is still 151.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 361.74ms. Allocated memory is still 175.1MB. Free memory was 149.8MB in the beginning and 131.5MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.27ms. Allocated memory is still 175.1MB. Free memory was 131.5MB in the beginning and 129.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.75ms. Allocated memory is still 175.1MB. Free memory was 129.8MB in the beginning and 128.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 315.95ms. Allocated memory is still 175.1MB. Free memory was 128.3MB in the beginning and 117.3MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 322.88ms. Allocated memory is still 175.1MB. Free memory was 116.3MB in the beginning and 94.8MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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; VAL [x=3] [L689] 0 pthread_t id; VAL [id={3:0}, x=3] [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(); VAL [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, x=0] [L684] CALL 1 __VERIFIER_assert(x == 3) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0] [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, 52 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: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred 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, 24 NumberOfCodeBlocks, 24 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! [2022-12-11 21:15:40,921 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...