/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -s ../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSmt.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false -i ../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-d6e1636 [2023-01-11 03:30:22,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-11 03:30:22,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-11 03:30:22,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-11 03:30:22,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-11 03:30:22,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-11 03:30:22,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-11 03:30:22,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-11 03:30:22,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-11 03:30:22,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-11 03:30:22,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-11 03:30:22,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-11 03:30:22,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-11 03:30:22,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-11 03:30:22,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-11 03:30:22,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-11 03:30:22,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-11 03:30:22,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-11 03:30:22,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-11 03:30:22,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-11 03:30:22,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-11 03:30:22,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-11 03:30:22,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-11 03:30:22,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-11 03:30:22,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-11 03:30:22,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-11 03:30:22,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-11 03:30:22,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-11 03:30:22,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-11 03:30:22,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-11 03:30:22,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-11 03:30:22,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-11 03:30:22,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-11 03:30:22,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-11 03:30:22,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-11 03:30:22,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-11 03:30:22,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-11 03:30:22,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-11 03:30:22,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-11 03:30:22,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-11 03:30:22,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-11 03:30:22,430 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/SleepMap-ConcreteSmt-VarAbsGlobalSmt.epf [2023-01-11 03:30:22,442 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-11 03:30:22,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-11 03:30:22,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-01-11 03:30:22,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-01-11 03:30:22,443 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-11 03:30:22,443 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-11 03:30:22,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-11 03:30:22,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-11 03:30:22,444 INFO L138 SettingsManager]: * Use SBE=true [2023-01-11 03:30:22,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-11 03:30:22,444 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-11 03:30:22,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-11 03:30:22,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-11 03:30:22,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-11 03:30:22,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-11 03:30:22,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-11 03:30:22,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-11 03:30:22,445 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-11 03:30:22,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-11 03:30:22,445 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-11 03:30:22,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-11 03:30:22,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-11 03:30:22,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-11 03:30:22,446 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-11 03:30:22,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-11 03:30:22,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-11 03:30:22,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-11 03:30:22,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-11 03:30:22,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-11 03:30:22,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-11 03:30:22,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-11 03:30:22,446 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-01-11 03:30:22,447 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-01-11 03:30:22,447 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-01-11 03:30:22,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-01-11 03:30:22,447 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2023-01-11 03:30:22,447 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-01-11 03:30:22,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-11 03:30:22,447 INFO L138 SettingsManager]: * Number of independence relations to use for POR=2 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2023-01-11 03:30:22,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-11 03:30:22,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-11 03:30:22,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-11 03:30:22,634 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-11 03:30:22,635 INFO L275 PluginConnector]: CDTParser initialized [2023-01-11 03:30:22,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c [2023-01-11 03:30:23,903 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-11 03:30:24,122 INFO L351 CDTParser]: Found 1 translation units. [2023-01-11 03:30:24,122 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c [2023-01-11 03:30:24,129 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0a5a6811/224030d4822b41d7bc19193d21e7cc9b/FLAGba90712d3 [2023-01-11 03:30:24,144 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0a5a6811/224030d4822b41d7bc19193d21e7cc9b [2023-01-11 03:30:24,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-11 03:30:24,147 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-11 03:30:24,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-11 03:30:24,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-11 03:30:24,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-11 03:30:24,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:30:24" (1/1) ... [2023-01-11 03:30:24,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4213561c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:24, skipping insertion in model container [2023-01-11 03:30:24,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 03:30:24" (1/1) ... [2023-01-11 03:30:24,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-11 03:30:24,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-11 03:30:24,372 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c[4293,4306] [2023-01-11 03:30:24,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-11 03:30:24,406 INFO L203 MainTranslator]: Completed pre-run [2023-01-11 03:30:24,472 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-buffer-mult-alt.wvr.c[4293,4306] [2023-01-11 03:30:24,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-11 03:30:24,491 WARN L663 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-11 03:30:24,492 WARN L663 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-11 03:30:24,500 INFO L208 MainTranslator]: Completed translation [2023-01-11 03:30:24,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:24 WrapperNode [2023-01-11 03:30:24,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-11 03:30:24,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-11 03:30:24,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-11 03:30:24,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-11 03:30:24,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:24" (1/1) ... [2023-01-11 03:30:24,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:24" (1/1) ... [2023-01-11 03:30:24,561 INFO L138 Inliner]: procedures = 26, calls = 79, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 656 [2023-01-11 03:30:24,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-11 03:30:24,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-11 03:30:24,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-11 03:30:24,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-11 03:30:24,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:24" (1/1) ... [2023-01-11 03:30:24,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:24" (1/1) ... [2023-01-11 03:30:24,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:24" (1/1) ... [2023-01-11 03:30:24,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:24" (1/1) ... [2023-01-11 03:30:24,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:24" (1/1) ... [2023-01-11 03:30:24,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:24" (1/1) ... [2023-01-11 03:30:24,637 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:24" (1/1) ... [2023-01-11 03:30:24,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:24" (1/1) ... [2023-01-11 03:30:24,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-11 03:30:24,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-11 03:30:24,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-11 03:30:24,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-11 03:30:24,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:24" (1/1) ... [2023-01-11 03:30:24,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-11 03:30:24,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 03:30:24,705 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) [2023-01-11 03:30:24,731 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 [2023-01-11 03:30:24,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-11 03:30:24,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-11 03:30:24,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-11 03:30:24,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-11 03:30:24,754 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-11 03:30:24,755 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-11 03:30:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-11 03:30:24,755 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-11 03:30:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-11 03:30:24,755 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-11 03:30:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-01-11 03:30:24,755 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-01-11 03:30:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-11 03:30:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-11 03:30:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-11 03:30:24,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-11 03:30:24,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-11 03:30:24,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-11 03:30:24,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-11 03:30:24,757 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-11 03:30:24,881 INFO L236 CfgBuilder]: Building ICFG [2023-01-11 03:30:24,882 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-11 03:30:25,653 INFO L277 CfgBuilder]: Performing block encoding [2023-01-11 03:30:26,235 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-11 03:30:26,235 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-01-11 03:30:26,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:30:26 BoogieIcfgContainer [2023-01-11 03:30:26,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-11 03:30:26,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-11 03:30:26,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-11 03:30:26,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-11 03:30:26,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 03:30:24" (1/3) ... [2023-01-11 03:30:26,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6792935a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:30:26, skipping insertion in model container [2023-01-11 03:30:26,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 03:30:24" (2/3) ... [2023-01-11 03:30:26,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6792935a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 03:30:26, skipping insertion in model container [2023-01-11 03:30:26,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 03:30:26" (3/3) ... [2023-01-11 03:30:26,243 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-buffer-mult-alt.wvr.c [2023-01-11 03:30:26,249 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-01-11 03:30:26,255 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-11 03:30:26,256 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2023-01-11 03:30:26,256 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-11 03:30:26,404 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-01-11 03:30:26,464 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 03:30:26,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-11 03:30:26,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-11 03:30:26,467 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-01-11 03:30:26,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-01-11 03:30:26,507 INFO L100 denceProviderFactory]: Independence Relation #2: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 03:30:26,512 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 2 independence relations. [2023-01-11 03:30:26,512 WARN L167 artialOrderCegarLoop]: Attention: Unsuitable combinations of independence relations may be unsound! [2023-01-11 03:30:26,512 WARN L168 artialOrderCegarLoop]: Only combine independence relations if you are sure the combination is sound. [2023-01-11 03:30:26,522 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Err0ASSERT_VIOLATIONDATA_RACE ======== [2023-01-11 03:30:26,529 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@7900b7f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-11 03:30:26,530 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-11 03:30:26,536 WARN L125 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2023-01-11 03:30:26,538 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.PartialOrderReductionFacade$SleepBlockedStatistics.computeSleepBlocked(PartialOrderReductionFacade.java:493) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.PartialOrderReductionFacade$SleepBlockedStatistics.(PartialOrderReductionFacade.java:485) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:335) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.computeInitialAbstraction(AbstractCegarLoop.java:404) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:365) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-01-11 03:30:26,542 INFO L158 Benchmark]: Toolchain (without parser) took 2393.70ms. Allocated memory is still 235.9MB. Free memory was 191.9MB in the beginning and 134.0MB in the end (delta: 57.9MB). Peak memory consumption was 58.9MB. Max. memory is 8.0GB. [2023-01-11 03:30:26,542 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 168.8MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-01-11 03:30:26,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.35ms. Allocated memory is still 235.9MB. Free memory was 191.9MB in the beginning and 177.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-01-11 03:30:26,543 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.04ms. Allocated memory is still 235.9MB. Free memory was 177.2MB in the beginning and 173.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-01-11 03:30:26,544 INFO L158 Benchmark]: Boogie Preprocessor took 81.33ms. Allocated memory is still 235.9MB. Free memory was 173.0MB in the beginning and 169.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-01-11 03:30:26,544 INFO L158 Benchmark]: RCFGBuilder took 1593.63ms. Allocated memory is still 235.9MB. Free memory was 169.4MB in the beginning and 178.1MB in the end (delta: -8.7MB). Peak memory consumption was 80.9MB. Max. memory is 8.0GB. [2023-01-11 03:30:26,546 INFO L158 Benchmark]: TraceAbstraction took 301.46ms. Allocated memory is still 235.9MB. Free memory was 177.6MB in the beginning and 134.0MB in the end (delta: 43.5MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. [2023-01-11 03:30:26,552 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 168.8MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 352.35ms. Allocated memory is still 235.9MB. Free memory was 191.9MB in the beginning and 177.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.04ms. Allocated memory is still 235.9MB. Free memory was 177.2MB in the beginning and 173.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 81.33ms. Allocated memory is still 235.9MB. Free memory was 173.0MB in the beginning and 169.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 1593.63ms. Allocated memory is still 235.9MB. Free memory was 169.4MB in the beginning and 178.1MB in the end (delta: -8.7MB). Peak memory consumption was 80.9MB. Max. memory is 8.0GB. * TraceAbstraction took 301.46ms. Allocated memory is still 235.9MB. Free memory was 177.6MB in the beginning and 134.0MB in the end (delta: 43.5MB). Peak memory consumption was 43.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.PartialOrderReductionFacade$SleepBlockedStatistics.computeSleepBlocked(PartialOrderReductionFacade.java:493) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-01-11 03:30:26,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-01-11 03:30:26,782 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...