/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/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 08:25:21,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 08:25:21,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 08:25:21,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 08:25:21,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 08:25:21,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 08:25:21,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 08:25:21,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 08:25:21,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 08:25:21,203 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 08:25:21,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 08:25:21,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 08:25:21,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 08:25:21,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 08:25:21,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 08:25:21,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 08:25:21,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 08:25:21,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 08:25:21,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 08:25:21,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 08:25:21,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 08:25:21,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 08:25:21,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 08:25:21,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 08:25:21,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 08:25:21,232 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 08:25:21,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 08:25:21,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 08:25:21,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 08:25:21,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 08:25:21,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 08:25:21,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 08:25:21,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 08:25:21,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 08:25:21,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 08:25:21,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 08:25:21,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 08:25:21,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 08:25:21,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 08:25:21,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 08:25:21,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 08:25:21,242 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 08:25:21,271 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 08:25:21,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 08:25:21,273 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 08:25:21,273 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 08:25:21,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 08:25:21,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 08:25:21,274 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 08:25:21,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 08:25:21,274 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 08:25:21,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 08:25:21,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 08:25:21,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 08:25:21,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 08:25:21,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 08:25:21,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 08:25:21,275 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 08:25:21,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 08:25:21,276 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 08:25:21,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 08:25:21,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 08:25:21,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 08:25:21,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 08:25:21,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 08:25:21,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 08:25:21,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 08:25:21,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 08:25:21,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 08:25:21,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 08:25:21,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 08:25:21,277 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 08:25:21,277 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 08:25:21,277 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 08:25:21,462 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 08:25:21,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 08:25:21,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 08:25:21,488 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 08:25:21,488 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 08:25:21,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-01-28 08:25:22,572 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 08:25:22,845 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 08:25:22,846 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-01-28 08:25:22,860 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2afbd5175/ee7b99f2c8f64793aed5f4e09a1d7883/FLAG37a149549 [2023-01-28 08:25:22,880 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2afbd5175/ee7b99f2c8f64793aed5f4e09a1d7883 [2023-01-28 08:25:22,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 08:25:22,884 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 08:25:22,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 08:25:22,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 08:25:22,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 08:25:22,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 08:25:22" (1/1) ... [2023-01-28 08:25:22,892 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76fd5bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:25:22, skipping insertion in model container [2023-01-28 08:25:22,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 08:25:22" (1/1) ... [2023-01-28 08:25:22,898 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 08:25:22,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 08:25:23,055 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2023-01-28 08:25:23,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 08:25:23,213 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 08:25:23,228 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2023-01-28 08:25:23,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 08:25:23,338 INFO L208 MainTranslator]: Completed translation [2023-01-28 08:25:23,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:25:23 WrapperNode [2023-01-28 08:25:23,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 08:25:23,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 08:25:23,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 08:25:23,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 08:25:23,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:25:23" (1/1) ... [2023-01-28 08:25:23,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:25:23" (1/1) ... [2023-01-28 08:25:23,379 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2023-01-28 08:25:23,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 08:25:23,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 08:25:23,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 08:25:23,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 08:25:23,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:25:23" (1/1) ... [2023-01-28 08:25:23,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:25:23" (1/1) ... [2023-01-28 08:25:23,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:25:23" (1/1) ... [2023-01-28 08:25:23,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:25:23" (1/1) ... [2023-01-28 08:25:23,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:25:23" (1/1) ... [2023-01-28 08:25:23,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:25:23" (1/1) ... [2023-01-28 08:25:23,399 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:25:23" (1/1) ... [2023-01-28 08:25:23,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:25:23" (1/1) ... [2023-01-28 08:25:23,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 08:25:23,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 08:25:23,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 08:25:23,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 08:25:23,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:25:23" (1/1) ... [2023-01-28 08:25:23,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 08:25:23,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 08:25:23,438 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 08:25:23,469 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 08:25:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 08:25:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 08:25:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 08:25:23,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 08:25:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 08:25:23,492 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 08:25:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 08:25:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 08:25:23,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 08:25:23,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 08:25:23,495 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 08:25:23,595 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 08:25:23,597 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 08:25:23,762 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 08:25:23,768 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 08:25:23,768 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 08:25:23,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 08:25:23 BoogieIcfgContainer [2023-01-28 08:25:23,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 08:25:23,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 08:25:23,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 08:25:23,776 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 08:25:23,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 08:25:22" (1/3) ... [2023-01-28 08:25:23,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c92cbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 08:25:23, skipping insertion in model container [2023-01-28 08:25:23,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 08:25:23" (2/3) ... [2023-01-28 08:25:23,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c92cbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 08:25:23, skipping insertion in model container [2023-01-28 08:25:23,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 08:25:23" (3/3) ... [2023-01-28 08:25:23,778 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2023-01-28 08:25:23,797 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 08:25:23,797 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 08:25:23,798 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 08:25:23,850 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 08:25:23,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 73 transitions, 151 flow [2023-01-28 08:25:23,920 INFO L130 PetriNetUnfolder]: 2/72 cut-off events. [2023-01-28 08:25:23,920 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 08:25:23,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 2/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2023-01-28 08:25:23,924 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 73 transitions, 151 flow [2023-01-28 08:25:23,927 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 62 transitions, 127 flow [2023-01-28 08:25:23,933 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 08:25:23,960 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 62 transitions, 127 flow [2023-01-28 08:25:23,962 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 62 transitions, 127 flow [2023-01-28 08:25:23,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 62 transitions, 127 flow [2023-01-28 08:25:23,978 INFO L130 PetriNetUnfolder]: 1/62 cut-off events. [2023-01-28 08:25:23,979 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 08:25:23,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 62 events. 1/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2023-01-28 08:25:23,980 INFO L119 LiptonReduction]: Number of co-enabled transitions 360 [2023-01-28 08:25:26,132 INFO L134 LiptonReduction]: Checked pairs total: 1016 [2023-01-28 08:25:26,133 INFO L136 LiptonReduction]: Total number of compositions: 52 [2023-01-28 08:25:26,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 08:25:26,151 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;@76e96112, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 08:25:26,151 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 08:25:26,154 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2023-01-28 08:25:26,154 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 08:25:26,154 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 08:25:26,155 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-28 08:25:26,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 08:25:26,160 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 08:25:26,160 INFO L85 PathProgramCache]: Analyzing trace with hash 235099129, now seen corresponding path program 1 times [2023-01-28 08:25:26,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 08:25:26,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268228723] [2023-01-28 08:25:26,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 08:25:26,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 08:25:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 08:25:26,304 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 08:25:26,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 08:25:26,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 08:25:26,360 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 08:25:26,361 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-01-28 08:25:26,365 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 08:25:26,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 08:25:26,369 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 08:25:26,379 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 08:25:26,379 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 08:25:26,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 08:25:26 BasicIcfg [2023-01-28 08:25:26,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 08:25:26,397 INFO L158 Benchmark]: Toolchain (without parser) took 3513.02ms. Allocated memory is still 398.5MB. Free memory was 344.9MB in the beginning and 312.4MB in the end (delta: 32.4MB). Peak memory consumption was 33.9MB. Max. memory is 16.0GB. [2023-01-28 08:25:26,398 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory is still 213.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 08:25:26,398 INFO L158 Benchmark]: CACSL2BoogieTranslator took 452.29ms. Allocated memory is still 398.5MB. Free memory was 344.7MB in the beginning and 370.4MB in the end (delta: -25.8MB). Peak memory consumption was 19.9MB. Max. memory is 16.0GB. [2023-01-28 08:25:26,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.25ms. Allocated memory is still 398.5MB. Free memory was 370.4MB in the beginning and 368.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 08:25:26,400 INFO L158 Benchmark]: Boogie Preprocessor took 22.01ms. Allocated memory is still 398.5MB. Free memory was 368.3MB in the beginning and 366.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 08:25:26,400 INFO L158 Benchmark]: RCFGBuilder took 367.66ms. Allocated memory is still 398.5MB. Free memory was 366.8MB in the beginning and 353.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. [2023-01-28 08:25:26,401 INFO L158 Benchmark]: TraceAbstraction took 2625.08ms. Allocated memory is still 398.5MB. Free memory was 353.0MB in the beginning and 312.4MB in the end (delta: 40.6MB). Peak memory consumption was 41.3MB. Max. memory is 16.0GB. [2023-01-28 08:25:26,403 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 213.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 452.29ms. Allocated memory is still 398.5MB. Free memory was 344.7MB in the beginning and 370.4MB in the end (delta: -25.8MB). Peak memory consumption was 19.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 39.25ms. Allocated memory is still 398.5MB. Free memory was 370.4MB in the beginning and 368.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.01ms. Allocated memory is still 398.5MB. Free memory was 368.3MB in the beginning and 366.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 367.66ms. Allocated memory is still 398.5MB. Free memory was 366.8MB in the beginning and 353.6MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.0GB. * TraceAbstraction took 2625.08ms. Allocated memory is still 398.5MB. Free memory was 353.0MB in the beginning and 312.4MB in the end (delta: 40.6MB). Peak memory consumption was 41.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.2s, 65 PlacesBefore, 17 PlacesAfterwards, 62 TransitionsBefore, 14 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 15 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 52 TotalNumberOfCompositions, 1016 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 449, independent: 327, independent conditional: 0, independent unconditional: 327, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 195, independent: 170, independent conditional: 0, independent unconditional: 170, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 449, independent: 157, independent conditional: 0, independent unconditional: 157, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 195, unknown conditional: 0, unknown unconditional: 195] , Statistics on independence cache: Total cache size (in pairs): 28, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int g = 42; [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, B={4:0}, arg={0:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [A={3:0}, B={4:0}, \old(cond)=0, arg={0:0}, cond=0, g=42] - UnprovableResult [Line: 697]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 84 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-01-28 08:25:26,423 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...