/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:41:59,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:41:59,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:41:59,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:41:59,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:41:59,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:41:59,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:41:59,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:41:59,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:41:59,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:41:59,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:41:59,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:41:59,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:41:59,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:41:59,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:41:59,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:41:59,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:41:59,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:41:59,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:41:59,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:41:59,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:41:59,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:41:59,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:41:59,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:41:59,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:41:59,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:41:59,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:41:59,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:41:59,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:41:59,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:41:59,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:41:59,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:41:59,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:41:59,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:41:59,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:41:59,523 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:41:59,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:41:59,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:41:59,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:41:59,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:41:59,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:41:59,525 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-VariableLbe.epf [2023-01-28 07:41:59,544 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:41:59,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:41:59,545 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:41:59,545 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:41:59,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:41:59,546 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:41:59,546 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:41:59,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:41:59,546 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:41:59,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:41:59,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:41:59,547 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:41:59,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:41:59,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:41:59,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:41:59,547 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:41:59,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:41:59,547 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:41:59,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:41:59,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:41:59,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:41:59,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:41:59,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:41:59,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:41:59,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:41:59,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:41:59,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:41:59,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:41:59,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:41:59,549 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:41:59,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:41:59,549 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:41:59,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:41:59,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:41:59,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:41:59,728 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:41:59,729 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:41:59,730 INFO L432 ainManager$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_neg.i [2023-01-28 07:42:00,852 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:42:01,118 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:42:01,119 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2023-01-28 07:42:01,135 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3088902/e43b28e4c43444968ae0e8217954c94d/FLAGfa0626be6 [2023-01-28 07:42:01,146 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3088902/e43b28e4c43444968ae0e8217954c94d [2023-01-28 07:42:01,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:42:01,149 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:42:01,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:42:01,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:42:01,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:42:01,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:42:01" (1/1) ... [2023-01-28 07:42:01,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a0a0a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:01, skipping insertion in model container [2023-01-28 07:42:01,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:42:01" (1/1) ... [2023-01-28 07:42:01,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:42:01,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:42:01,337 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/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2023-01-28 07:42:01,465 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:42:01,476 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:42:01,485 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/13-privatized_18-first-reads_unknown_2_neg.i[1097,1110] [2023-01-28 07:42:01,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:42:01,536 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:42:01,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:01 WrapperNode [2023-01-28 07:42:01,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:42:01,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:42:01,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:42:01,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:42:01,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:01" (1/1) ... [2023-01-28 07:42:01,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:01" (1/1) ... [2023-01-28 07:42:01,578 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-01-28 07:42:01,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:42:01,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:42:01,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:42:01,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:42:01,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:01" (1/1) ... [2023-01-28 07:42:01,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:01" (1/1) ... [2023-01-28 07:42:01,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:01" (1/1) ... [2023-01-28 07:42:01,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:01" (1/1) ... [2023-01-28 07:42:01,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:01" (1/1) ... [2023-01-28 07:42:01,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:01" (1/1) ... [2023-01-28 07:42:01,601 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:01" (1/1) ... [2023-01-28 07:42:01,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:01" (1/1) ... [2023-01-28 07:42:01,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:42:01,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:42:01,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:42:01,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:42:01,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:01" (1/1) ... [2023-01-28 07:42:01,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:42:01,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:42:01,645 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) [2023-01-28 07:42:01,651 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 [2023-01-28 07:42:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:42:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:42:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 07:42:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:42:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:42:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 07:42:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 07:42:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:42:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:42:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:42:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:42:01,675 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 07:42:01,757 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:42:01,758 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:42:01,857 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:42:01,862 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:42:01,862 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 07:42:01,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:42:01 BoogieIcfgContainer [2023-01-28 07:42:01,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:42:01,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:42:01,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:42:01,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:42:01,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:42:01" (1/3) ... [2023-01-28 07:42:01,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bfa68ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:42:01, skipping insertion in model container [2023-01-28 07:42:01,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:01" (2/3) ... [2023-01-28 07:42:01,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bfa68ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:42:01, skipping insertion in model container [2023-01-28 07:42:01,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:42:01" (3/3) ... [2023-01-28 07:42:01,868 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2023-01-28 07:42:01,879 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:42:01,879 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 07:42:01,879 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:42:01,935 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-28 07:42:01,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-01-28 07:42:02,010 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-01-28 07:42:02,010 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:42:02,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 58 events. 2/58 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2023-01-28 07:42:02,013 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-01-28 07:42:02,016 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-01-28 07:42:02,018 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:42:02,033 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-28 07:42:02,036 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-28 07:42:02,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-01-28 07:42:02,053 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-01-28 07:42:02,053 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:42:02,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 44 events. 1/44 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 14 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2023-01-28 07:42:02,054 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-01-28 07:42:03,543 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-01-28 07:42:03,544 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-01-28 07:42:03,556 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:42:03,562 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;@4549821c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:42:03,563 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-28 07:42:03,565 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-01-28 07:42:03,565 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:42:03,565 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:42:03,566 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-28 07:42:03,566 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-28 07:42:03,569 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:42:03,570 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-01-28 07:42:03,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:42:03,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804771929] [2023-01-28 07:42:03,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:42:03,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:42:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:42:03,684 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 07:42:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:42:03,735 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 07:42:03,736 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 07:42:03,737 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-28 07:42:03,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-28 07:42:03,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-01-28 07:42:03,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:42:03,739 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 07:42:03,745 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:42:03,745 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:42:03,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:42:03 BasicIcfg [2023-01-28 07:42:03,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:42:03,760 INFO L158 Benchmark]: Toolchain (without parser) took 2610.69ms. Allocated memory was 346.0MB in the beginning and 637.5MB in the end (delta: 291.5MB). Free memory was 302.1MB in the beginning and 479.8MB in the end (delta: -177.8MB). Peak memory consumption was 115.8MB. Max. memory is 16.0GB. [2023-01-28 07:42:03,760 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 346.0MB. Free memory is still 292.8MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:42:03,762 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.82ms. Allocated memory is still 346.0MB. Free memory was 301.7MB in the beginning and 283.3MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-01-28 07:42:03,765 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.22ms. Allocated memory is still 346.0MB. Free memory was 283.2MB in the beginning and 281.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:42:03,765 INFO L158 Benchmark]: Boogie Preprocessor took 24.92ms. Allocated memory is still 346.0MB. Free memory was 281.2MB in the beginning and 279.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:42:03,766 INFO L158 Benchmark]: RCFGBuilder took 259.64ms. Allocated memory is still 346.0MB. Free memory was 279.9MB in the beginning and 267.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 07:42:03,767 INFO L158 Benchmark]: TraceAbstraction took 1894.37ms. Allocated memory was 346.0MB in the beginning and 637.5MB in the end (delta: 291.5MB). Free memory was 266.9MB in the beginning and 479.8MB in the end (delta: -212.9MB). Peak memory consumption was 80.2MB. Max. memory is 16.0GB. [2023-01-28 07:42:03,772 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 346.0MB. Free memory is still 292.8MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 387.82ms. Allocated memory is still 346.0MB. Free memory was 301.7MB in the beginning and 283.3MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 40.22ms. Allocated memory is still 346.0MB. Free memory was 283.2MB in the beginning and 281.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 24.92ms. Allocated memory is still 346.0MB. Free memory was 281.2MB in the beginning and 279.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 259.64ms. Allocated memory is still 346.0MB. Free memory was 279.9MB in the beginning and 267.7MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 1894.37ms. Allocated memory was 346.0MB in the beginning and 637.5MB in the end (delta: 291.5MB). Free memory was 266.9MB in the beginning and 479.8MB in the end (delta: -212.9MB). Peak memory consumption was 80.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.5s, 47 PlacesBefore, 9 PlacesAfterwards, 44 TransitionsBefore, 5 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 6 FixpointIterations, 20 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 42 TotalNumberOfCompositions, 188 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 174, independent: 159, independent conditional: 0, independent unconditional: 159, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 112, independent: 102, independent conditional: 0, independent unconditional: 102, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 174, independent: 57, independent conditional: 0, independent unconditional: 57, dependent: 5, dependent conditional: 0, dependent unconditional: 5, unknown: 112, unknown conditional: 0, unknown unconditional: 112] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, 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 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))=0] [L685] 1 int t = __VERIFIER_nondet_int(); [L687] COND TRUE 1 t == 42 [L688] 1 glob1 = 1 [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=1, 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, 81 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-01-28 07:42:03,789 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...