/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-RepeatedSemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 03:39:57,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 03:39:57,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 03:39:57,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 03:39:57,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 03:39:57,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 03:39:57,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 03:39:57,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 03:39:57,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 03:39:57,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 03:39:57,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 03:39:57,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 03:39:57,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 03:39:57,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 03:39:57,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 03:39:57,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 03:39:57,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 03:39:57,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 03:39:57,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 03:39:57,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 03:39:57,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 03:39:57,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 03:39:57,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 03:39:57,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 03:39:57,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 03:39:57,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 03:39:57,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 03:39:57,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 03:39:57,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 03:39:57,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 03:39:57,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 03:39:57,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 03:39:57,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 03:39:57,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 03:39:57,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 03:39:57,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 03:39:57,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 03:39:57,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 03:39:57,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 03:39:57,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 03:39:57,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 03:39:57,985 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-RepeatedSemanticLbe.epf [2022-12-13 03:39:58,009 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 03:39:58,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 03:39:58,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 03:39:58,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 03:39:58,013 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 03:39:58,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 03:39:58,013 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 03:39:58,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 03:39:58,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 03:39:58,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 03:39:58,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 03:39:58,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 03:39:58,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 03:39:58,014 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 03:39:58,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 03:39:58,015 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 03:39:58,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 03:39:58,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 03:39:58,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 03:39:58,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 03:39:58,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 03:39:58,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:39:58,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 03:39:58,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 03:39:58,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 03:39:58,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 03:39:58,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 03:39:58,016 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 03:39:58,016 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-13 03:39:58,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 03:39:58,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 03:39:58,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 03:39:58,431 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 03:39:58,436 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 03:39:58,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-12-13 03:39:59,445 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 03:39:59,674 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 03:39:59,674 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2022-12-13 03:39:59,682 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b24513d6/24baad459d5d402082766e305069bf15/FLAG1981f9c99 [2022-12-13 03:39:59,693 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b24513d6/24baad459d5d402082766e305069bf15 [2022-12-13 03:39:59,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 03:39:59,696 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 03:39:59,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 03:39:59,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 03:39:59,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 03:39:59,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:39:59" (1/1) ... [2022-12-13 03:39:59,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@796a44ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:39:59, skipping insertion in model container [2022-12-13 03:39:59,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:39:59" (1/1) ... [2022-12-13 03:39:59,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 03:39:59,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 03:39:59,843 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/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2022-12-13 03:39:59,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:39:59,943 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 03:39:59,954 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/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2022-12-13 03:39:59,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 03:40:00,016 INFO L208 MainTranslator]: Completed translation [2022-12-13 03:40:00,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:00 WrapperNode [2022-12-13 03:40:00,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 03:40:00,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 03:40:00,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 03:40:00,019 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 03:40:00,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:00" (1/1) ... [2022-12-13 03:40:00,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:00" (1/1) ... [2022-12-13 03:40:00,068 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-12-13 03:40:00,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 03:40:00,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 03:40:00,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 03:40:00,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 03:40:00,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:00" (1/1) ... [2022-12-13 03:40:00,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:00" (1/1) ... [2022-12-13 03:40:00,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:00" (1/1) ... [2022-12-13 03:40:00,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:00" (1/1) ... [2022-12-13 03:40:00,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:00" (1/1) ... [2022-12-13 03:40:00,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:00" (1/1) ... [2022-12-13 03:40:00,094 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:00" (1/1) ... [2022-12-13 03:40:00,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:00" (1/1) ... [2022-12-13 03:40:00,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 03:40:00,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 03:40:00,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 03:40:00,097 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 03:40:00,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:00" (1/1) ... [2022-12-13 03:40:00,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 03:40:00,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 03:40:00,124 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) [2022-12-13 03:40:00,154 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 [2022-12-13 03:40:00,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 03:40:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 03:40:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 03:40:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 03:40:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 03:40:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 03:40:00,171 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 03:40:00,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 03:40:00,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 03:40:00,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 03:40:00,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 03:40:00,173 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 03:40:00,264 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 03:40:00,265 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 03:40:00,363 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 03:40:00,367 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 03:40:00,367 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 03:40:00,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:40:00 BoogieIcfgContainer [2022-12-13 03:40:00,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 03:40:00,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 03:40:00,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 03:40:00,374 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 03:40:00,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:39:59" (1/3) ... [2022-12-13 03:40:00,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52753fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:40:00, skipping insertion in model container [2022-12-13 03:40:00,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:40:00" (2/3) ... [2022-12-13 03:40:00,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52753fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:40:00, skipping insertion in model container [2022-12-13 03:40:00,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:40:00" (3/3) ... [2022-12-13 03:40:00,384 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2022-12-13 03:40:00,396 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 03:40:00,396 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 03:40:00,397 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 03:40:00,486 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 03:40:00,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 58 transitions, 124 flow [2022-12-13 03:40:00,612 INFO L130 PetriNetUnfolder]: 2/57 cut-off events. [2022-12-13 03:40:00,612 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 03:40:00,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 57 events. 2/57 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2022-12-13 03:40:00,616 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 58 transitions, 124 flow [2022-12-13 03:40:00,621 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 43 transitions, 89 flow [2022-12-13 03:40:00,623 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 03:40:00,655 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-13 03:40:00,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 43 transitions, 89 flow [2022-12-13 03:40:00,676 INFO L130 PetriNetUnfolder]: 1/43 cut-off events. [2022-12-13 03:40:00,676 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:40:00,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 43 events. 1/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2022-12-13 03:40:00,679 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 43 transitions, 89 flow [2022-12-13 03:40:00,679 INFO L226 LiptonReduction]: Number of co-enabled transitions 180 [2022-12-13 03:40:02,432 INFO L241 LiptonReduction]: Total number of compositions: 39 [2022-12-13 03:40:02,444 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 03:40:02,448 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=REPEATED_LIPTON_PN, 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;@18ffe955, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 03:40:02,449 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-13 03:40:02,452 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-13 03:40:02,453 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 03:40:02,453 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 03:40:02,454 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 03:40:02,454 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 03:40:02,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 03:40:02,457 INFO L85 PathProgramCache]: Analyzing trace with hash 221970, now seen corresponding path program 1 times [2022-12-13 03:40:02,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 03:40:02,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835341202] [2022-12-13 03:40:02,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 03:40:02,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 03:40:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 03:40:02,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 03:40:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 03:40:02,600 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 03:40:02,601 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 03:40:02,603 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-12-13 03:40:02,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-12-13 03:40:02,606 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-12-13 03:40:02,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 03:40:02,607 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 03:40:02,614 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 03:40:02,614 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 03:40:02,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:40:02 BasicIcfg [2022-12-13 03:40:02,631 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 03:40:02,633 INFO L158 Benchmark]: Toolchain (without parser) took 2936.43ms. Allocated memory is still 181.4MB. Free memory was 140.2MB in the beginning and 135.9MB in the end (delta: 4.3MB). Peak memory consumption was 4.8MB. Max. memory is 8.0GB. [2022-12-13 03:40:02,634 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 181.4MB. Free memory is still 158.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 03:40:02,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.09ms. Allocated memory is still 181.4MB. Free memory was 140.2MB in the beginning and 121.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-13 03:40:02,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.35ms. Allocated memory is still 181.4MB. Free memory was 121.3MB in the beginning and 119.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-13 03:40:02,639 INFO L158 Benchmark]: Boogie Preprocessor took 26.90ms. Allocated memory is still 181.4MB. Free memory was 119.2MB in the beginning and 118.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-13 03:40:02,639 INFO L158 Benchmark]: RCFGBuilder took 272.33ms. Allocated memory is still 181.4MB. Free memory was 118.2MB in the beginning and 105.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-12-13 03:40:02,640 INFO L158 Benchmark]: TraceAbstraction took 2260.94ms. Allocated memory is still 181.4MB. Free memory was 104.6MB in the beginning and 135.9MB in the end (delta: -31.3MB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 03:40:02,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 181.4MB. Free memory is still 158.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 320.09ms. Allocated memory is still 181.4MB. Free memory was 140.2MB in the beginning and 121.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 50.35ms. Allocated memory is still 181.4MB. Free memory was 121.3MB in the beginning and 119.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.90ms. Allocated memory is still 181.4MB. Free memory was 119.2MB in the beginning and 118.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 272.33ms. Allocated memory is still 181.4MB. Free memory was 118.2MB in the beginning and 105.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 2260.94ms. Allocated memory is still 181.4MB. Free memory was 104.6MB in the beginning and 135.9MB in the end (delta: -31.3MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 46 PlacesBefore, 13 PlacesAfterwards, 43 TransitionsBefore, 9 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 18 ConcurrentYvCompositions, 1 ChoiceCompositions, 39 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 198, independent: 197, independent conditional: 197, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 198, independent: 197, independent conditional: 0, independent unconditional: 197, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 198, independent: 197, independent conditional: 0, independent unconditional: 197, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 198, independent: 197, independent conditional: 0, independent unconditional: 197, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 141, independent: 140, independent conditional: 0, independent unconditional: 140, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 141, independent: 127, independent conditional: 0, independent unconditional: 127, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 14, independent: 13, independent conditional: 0, independent unconditional: 13, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 28, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 198, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 141, unknown conditional: 0, unknown unconditional: 141] , Statistics on independence cache: Total cache size (in pairs): 314, Positive cache size: 313, Positive conditional cache size: 0, Positive unconditional cache size: 313, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L697] 0 pthread_t id; [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND FALSE 1 !(t == 42) [L690] 1 t = glob1 [L691] CALL 1 __VERIFIER_assert(t == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=0, mutex1={3:0}] - UnprovableResult [Line: 698]: 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, 79 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: 2.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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! [2022-12-13 03:40:02,662 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...