/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_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:42:05,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:42:05,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:42:05,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:42:05,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:42:05,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:42:05,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:42:05,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:42:05,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:42:05,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:42:05,456 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:42:05,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:42:05,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:42:05,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:42:05,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:42:05,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:42:05,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:42:05,464 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:42:05,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:42:05,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:42:05,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:42:05,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:42:05,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:42:05,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:42:05,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:42:05,481 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:42:05,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:42:05,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:42:05,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:42:05,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:42:05,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:42:05,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:42:05,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:42:05,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:42:05,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:42:05,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:42:05,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:42:05,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:42:05,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:42:05,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:42:05,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:42:05,491 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 07:42:05,523 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:42:05,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:42:05,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:42:05,524 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:42:05,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:42:05,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:42:05,525 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:42:05,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:42:05,525 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:42:05,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:42:05,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:42:05,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:42:05,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:42:05,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:42:05,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:42:05,527 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:42:05,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:42:05,527 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:42:05,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:42:05,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:42:05,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:42:05,527 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:42:05,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:42:05,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:42:05,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:42:05,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:42:05,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:42:05,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:42:05,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:42:05,528 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:42:05,528 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:42:05,528 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:42:05,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:42:05,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:42:05,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:42:05,726 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:42:05,726 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:42:05,728 INFO L432 ainManager$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 [2023-01-28 07:42:06,809 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:42:07,094 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:42:07,094 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i [2023-01-28 07:42:07,112 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecc66bba7/40bc7ef1a36348bea21392715985475d/FLAG3d1eb2933 [2023-01-28 07:42:07,126 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecc66bba7/40bc7ef1a36348bea21392715985475d [2023-01-28 07:42:07,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:42:07,130 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:42:07,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:42:07,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:42:07,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:42:07,136 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:42:07" (1/1) ... [2023-01-28 07:42:07,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b4e9e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:07, skipping insertion in model container [2023-01-28 07:42:07,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:42:07" (1/1) ... [2023-01-28 07:42:07,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:42:07,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:42:07,301 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_pos.i[1097,1110] [2023-01-28 07:42:07,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:42:07,443 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:42:07,457 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_18-first-reads_unknown_2_pos.i[1097,1110] [2023-01-28 07:42:07,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:42:07,518 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:42:07,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:07 WrapperNode [2023-01-28 07:42:07,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:42:07,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:42:07,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:42:07,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:42:07,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:07" (1/1) ... [2023-01-28 07:42:07,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:07" (1/1) ... [2023-01-28 07:42:07,561 INFO L138 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-01-28 07:42:07,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:42:07,563 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:42:07,563 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:42:07,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:42:07,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:07" (1/1) ... [2023-01-28 07:42:07,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:07" (1/1) ... [2023-01-28 07:42:07,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:07" (1/1) ... [2023-01-28 07:42:07,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:07" (1/1) ... [2023-01-28 07:42:07,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:07" (1/1) ... [2023-01-28 07:42:07,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:07" (1/1) ... [2023-01-28 07:42:07,588 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:07" (1/1) ... [2023-01-28 07:42:07,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:07" (1/1) ... [2023-01-28 07:42:07,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:42:07,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:42:07,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:42:07,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:42:07,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:07" (1/1) ... [2023-01-28 07:42:07,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:42:07,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:42:07,632 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 07:42:07,655 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 07:42:07,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:42:07,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:42:07,665 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 07:42:07,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:42:07,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:42:07,666 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 07:42:07,666 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 07:42:07,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:42:07,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:42:07,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:42:07,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:42:07,667 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 07:42:07,764 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:42:07,766 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:42:07,940 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:42:07,946 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:42:07,947 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 07:42:07,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:42:07 BoogieIcfgContainer [2023-01-28 07:42:07,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:42:07,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:42:07,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:42:07,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:42:07,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:42:07" (1/3) ... [2023-01-28 07:42:07,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399c5fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:42:07, skipping insertion in model container [2023-01-28 07:42:07,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:42:07" (2/3) ... [2023-01-28 07:42:07,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399c5fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:42:07, skipping insertion in model container [2023-01-28 07:42:07,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:42:07" (3/3) ... [2023-01-28 07:42:07,955 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_pos.i [2023-01-28 07:42:07,971 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:42:07,971 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 07:42:07,971 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:42:08,013 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-28 07:42:08,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 126 flow [2023-01-28 07:42:08,076 INFO L130 PetriNetUnfolder]: 2/58 cut-off events. [2023-01-28 07:42:08,077 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-28 07:42:08,080 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 07:42:08,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 126 flow [2023-01-28 07:42:08,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 91 flow [2023-01-28 07:42:08,086 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:42:08,095 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-28 07:42:08,098 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 44 transitions, 91 flow [2023-01-28 07:42:08,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 44 transitions, 91 flow [2023-01-28 07:42:08,124 INFO L130 PetriNetUnfolder]: 1/44 cut-off events. [2023-01-28 07:42:08,124 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:42:08,124 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 07:42:08,125 INFO L119 LiptonReduction]: Number of co-enabled transitions 192 [2023-01-28 07:42:09,881 INFO L134 LiptonReduction]: Checked pairs total: 188 [2023-01-28 07:42:09,881 INFO L136 LiptonReduction]: Total number of compositions: 42 [2023-01-28 07:42:09,902 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:42:09,915 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;@5ff56caf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:42:09,915 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-28 07:42:09,918 INFO L130 PetriNetUnfolder]: 0/3 cut-off events. [2023-01-28 07:42:09,919 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:42:09,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:42:09,920 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-01-28 07:42:09,920 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 07:42:09,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:42:09,925 INFO L85 PathProgramCache]: Analyzing trace with hash 221098, now seen corresponding path program 1 times [2023-01-28 07:42:09,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:42:09,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902442687] [2023-01-28 07:42:09,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:42:09,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:42:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:42:10,055 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 07:42:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:42:10,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 07:42:10,115 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 07:42:10,116 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2023-01-28 07:42:10,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-28 07:42:10,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2023-01-28 07:42:10,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:42:10,119 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 07:42:10,128 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:42:10,128 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:42:10,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:42:10 BasicIcfg [2023-01-28 07:42:10,147 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:42:10,148 INFO L158 Benchmark]: Toolchain (without parser) took 3018.29ms. Allocated memory is still 350.2MB. Free memory was 308.1MB in the beginning and 272.0MB in the end (delta: 36.1MB). Peak memory consumption was 37.9MB. Max. memory is 16.0GB. [2023-01-28 07:42:10,149 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory is still 213.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:42:10,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.74ms. Allocated memory is still 350.2MB. Free memory was 308.1MB in the beginning and 289.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 07:42:10,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.85ms. Allocated memory is still 350.2MB. Free memory was 289.3MB in the beginning and 287.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:42:10,154 INFO L158 Benchmark]: Boogie Preprocessor took 28.16ms. Allocated memory is still 350.2MB. Free memory was 287.5MB in the beginning and 286.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:42:10,154 INFO L158 Benchmark]: RCFGBuilder took 357.25ms. Allocated memory is still 350.2MB. Free memory was 286.1MB in the beginning and 273.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 07:42:10,155 INFO L158 Benchmark]: TraceAbstraction took 2196.80ms. Allocated memory is still 350.2MB. Free memory was 273.3MB in the beginning and 272.0MB in the end (delta: 1.3MB). Peak memory consumption was 4.3MB. Max. memory is 16.0GB. [2023-01-28 07:42:10,161 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 255.9MB. Free memory is still 213.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 386.74ms. Allocated memory is still 350.2MB. Free memory was 308.1MB in the beginning and 289.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 41.85ms. Allocated memory is still 350.2MB. Free memory was 289.3MB in the beginning and 287.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 28.16ms. Allocated memory is still 350.2MB. Free memory was 287.5MB in the beginning and 286.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 357.25ms. Allocated memory is still 350.2MB. Free memory was 286.1MB in the beginning and 273.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2196.80ms. Allocated memory is still 350.2MB. Free memory was 273.3MB in the beginning and 272.0MB in the end (delta: 1.3MB). Peak memory consumption was 4.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 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 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, 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: 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=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 07:42:10,184 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...