./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-overflow.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr-overflow.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr-overflow.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d8b66b98fca524b0a343d5dd747c13b18a33bf448a3a25d7d1a1a10b8f7934d --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-30 09:33:28,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-30 09:33:28,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-30 09:33:28,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-30 09:33:28,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-30 09:33:28,357 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-30 09:33:28,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-30 09:33:28,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-30 09:33:28,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-30 09:33:28,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-30 09:33:28,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-30 09:33:28,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-30 09:33:28,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-30 09:33:28,368 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-30 09:33:28,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-30 09:33:28,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-30 09:33:28,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-30 09:33:28,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-30 09:33:28,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-30 09:33:28,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-30 09:33:28,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-30 09:33:28,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-30 09:33:28,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-30 09:33:28,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-30 09:33:28,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-30 09:33:28,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-30 09:33:28,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-30 09:33:28,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-30 09:33:28,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-30 09:33:28,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-30 09:33:28,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-30 09:33:28,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-30 09:33:28,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-30 09:33:28,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-30 09:33:28,397 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-30 09:33:28,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-30 09:33:28,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-30 09:33:28,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-30 09:33:28,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-30 09:33:28,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-30 09:33:28,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-30 09:33:28,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-08-30 09:33:28,433 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-30 09:33:28,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-30 09:33:28,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-30 09:33:28,434 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-30 09:33:28,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-30 09:33:28,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-30 09:33:28,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-30 09:33:28,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-30 09:33:28,436 INFO L138 SettingsManager]: * Use SBE=true [2023-08-30 09:33:28,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-30 09:33:28,437 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-30 09:33:28,437 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-30 09:33:28,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-30 09:33:28,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-30 09:33:28,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-30 09:33:28,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-30 09:33:28,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-30 09:33:28,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-30 09:33:28,438 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-08-30 09:33:28,439 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-30 09:33:28,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-30 09:33:28,439 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-30 09:33:28,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-30 09:33:28,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-30 09:33:28,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-30 09:33:28,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-30 09:33:28,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:33:28,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-30 09:33:28,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-30 09:33:28,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-30 09:33:28,441 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-30 09:33:28,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-30 09:33:28,441 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-30 09:33:28,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-30 09:33:28,441 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-30 09:33:28,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-30 09:33:28,442 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-30 09:33:28,442 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d8b66b98fca524b0a343d5dd747c13b18a33bf448a3a25d7d1a1a10b8f7934d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-30 09:33:28,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-30 09:33:28,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-30 09:33:28,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-30 09:33:28,758 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-30 09:33:28,758 INFO L275 PluginConnector]: CDTParser initialized [2023-08-30 09:33:28,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr-overflow.i [2023-08-30 09:33:29,874 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-30 09:33:30,160 INFO L351 CDTParser]: Found 1 translation units. [2023-08-30 09:33:30,160 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_36-trylock_nr-overflow.i [2023-08-30 09:33:30,181 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6642b89b8/d058eba1d3164c549bcaefa055dfaa29/FLAG727f7410a [2023-08-30 09:33:30,195 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6642b89b8/d058eba1d3164c549bcaefa055dfaa29 [2023-08-30 09:33:30,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-30 09:33:30,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-30 09:33:30,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-30 09:33:30,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-30 09:33:30,208 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-30 09:33:30,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:33:30" (1/1) ... [2023-08-30 09:33:30,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af63f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:30, skipping insertion in model container [2023-08-30 09:33:30,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 09:33:30" (1/1) ... [2023-08-30 09:33:30,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-30 09:33:30,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-30 09:33:31,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:33:31,060 INFO L203 MainTranslator]: Completed pre-run [2023-08-30 09:33:31,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-30 09:33:31,271 WARN L667 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:33:31,271 WARN L667 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:33:31,271 WARN L667 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:33:31,271 WARN L667 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-08-30 09:33:31,277 INFO L208 MainTranslator]: Completed translation [2023-08-30 09:33:31,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:31 WrapperNode [2023-08-30 09:33:31,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-30 09:33:31,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-30 09:33:31,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-30 09:33:31,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-30 09:33:31,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:31" (1/1) ... [2023-08-30 09:33:31,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:31" (1/1) ... [2023-08-30 09:33:31,370 INFO L138 Inliner]: procedures = 524, calls = 67, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 125 [2023-08-30 09:33:31,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-30 09:33:31,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-30 09:33:31,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-30 09:33:31,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-30 09:33:31,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:31" (1/1) ... [2023-08-30 09:33:31,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:31" (1/1) ... [2023-08-30 09:33:31,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:31" (1/1) ... [2023-08-30 09:33:31,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:31" (1/1) ... [2023-08-30 09:33:31,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:31" (1/1) ... [2023-08-30 09:33:31,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:31" (1/1) ... [2023-08-30 09:33:31,417 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:31" (1/1) ... [2023-08-30 09:33:31,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:31" (1/1) ... [2023-08-30 09:33:31,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-30 09:33:31,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-30 09:33:31,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-30 09:33:31,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-30 09:33:31,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:31" (1/1) ... [2023-08-30 09:33:31,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-30 09:33:31,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-30 09:33:31,456 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) [2023-08-30 09:33:31,460 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 [2023-08-30 09:33:31,486 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2023-08-30 09:33:31,486 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2023-08-30 09:33:31,486 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-08-30 09:33:31,486 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2023-08-30 09:33:31,487 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2023-08-30 09:33:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-08-30 09:33:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-30 09:33:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-30 09:33:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-30 09:33:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-30 09:33:31,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-30 09:33:31,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-30 09:33:31,488 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-08-30 09:33:31,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-30 09:33:31,488 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-08-30 09:33:31,488 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-08-30 09:33:31,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-30 09:33:31,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-30 09:33:31,490 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-30 09:33:31,789 INFO L236 CfgBuilder]: Building ICFG [2023-08-30 09:33:31,791 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-30 09:33:32,130 INFO L277 CfgBuilder]: Performing block encoding [2023-08-30 09:33:32,139 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-30 09:33:32,142 INFO L302 CfgBuilder]: Removed 19 assume(true) statements. [2023-08-30 09:33:32,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:33:32 BoogieIcfgContainer [2023-08-30 09:33:32,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-30 09:33:32,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-30 09:33:32,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-30 09:33:32,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-30 09:33:32,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 09:33:30" (1/3) ... [2023-08-30 09:33:32,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a52f318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:33:32, skipping insertion in model container [2023-08-30 09:33:32,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 09:33:31" (2/3) ... [2023-08-30 09:33:32,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a52f318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 09:33:32, skipping insertion in model container [2023-08-30 09:33:32,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:33:32" (3/3) ... [2023-08-30 09:33:32,153 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_36-trylock_nr-overflow.i [2023-08-30 09:33:32,162 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-30 09:33:32,170 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-30 09:33:32,171 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-30 09:33:32,171 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-30 09:33:32,289 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-30 09:33:32,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 218 places, 242 transitions, 500 flow [2023-08-30 09:33:32,428 INFO L130 PetriNetUnfolder]: 31/240 cut-off events. [2023-08-30 09:33:32,428 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-30 09:33:32,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 240 events. 31/240 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 537 event pairs, 0 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 150. Up to 5 conditions per place. [2023-08-30 09:33:32,436 INFO L82 GeneralOperation]: Start removeDead. Operand has 218 places, 242 transitions, 500 flow [2023-08-30 09:33:32,442 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 219 transitions, 447 flow [2023-08-30 09:33:32,446 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-30 09:33:32,453 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 198 places, 219 transitions, 447 flow [2023-08-30 09:33:32,455 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 198 places, 219 transitions, 447 flow [2023-08-30 09:33:32,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 219 transitions, 447 flow [2023-08-30 09:33:32,491 INFO L130 PetriNetUnfolder]: 28/219 cut-off events. [2023-08-30 09:33:32,491 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-30 09:33:32,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 219 events. 28/219 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 495 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 150. Up to 5 conditions per place. [2023-08-30 09:33:32,499 INFO L119 LiptonReduction]: Number of co-enabled transitions 13862 [2023-08-30 09:33:47,492 INFO L134 LiptonReduction]: Checked pairs total: 15107 [2023-08-30 09:33:47,493 INFO L136 LiptonReduction]: Total number of compositions: 252 [2023-08-30 09:33:47,505 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-30 09:33:47,510 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=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;@7b1faac3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-30 09:33:47,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-08-30 09:33:47,511 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-30 09:33:47,512 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-30 09:33:47,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:33:47,512 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 09:33:47,513 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-30 09:33:47,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:33:47,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1012, now seen corresponding path program 1 times [2023-08-30 09:33:47,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:33:47,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296873695] [2023-08-30 09:33:47,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:33:47,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:33:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-30 09:33:47,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-30 09:33:47,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-30 09:33:47,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296873695] [2023-08-30 09:33:47,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296873695] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-30 09:33:47,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-30 09:33:47,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-30 09:33:47,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017091431] [2023-08-30 09:33:47,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-30 09:33:47,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-30 09:33:47,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-30 09:33:47,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-30 09:33:47,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-30 09:33:47,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 494 [2023-08-30 09:33:47,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 50 transitions, 109 flow. Second operand has 2 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:33:47,787 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-30 09:33:47,787 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 494 [2023-08-30 09:33:47,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-30 09:33:47,942 INFO L130 PetriNetUnfolder]: 328/596 cut-off events. [2023-08-30 09:33:47,942 INFO L131 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2023-08-30 09:33:47,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1135 conditions, 596 events. 328/596 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 2807 event pairs, 234 based on Foata normal form. 79/340 useless extension candidates. Maximal degree in co-relation 1056. Up to 513 conditions per place. [2023-08-30 09:33:47,951 INFO L137 encePairwiseOnDemand]: 482/494 looper letters, 26 selfloop transitions, 0 changer transitions 0/30 dead transitions. [2023-08-30 09:33:47,951 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 121 flow [2023-08-30 09:33:47,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-30 09:33:47,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-30 09:33:48,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 460 transitions. [2023-08-30 09:33:48,005 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46558704453441296 [2023-08-30 09:33:48,006 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 460 transitions. [2023-08-30 09:33:48,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 460 transitions. [2023-08-30 09:33:48,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-30 09:33:48,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 460 transitions. [2023-08-30 09:33:48,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 230.0) internal successors, (460), 2 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:33:48,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:33:48,035 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:33:48,037 INFO L175 Difference]: Start difference. First operand has 39 places, 50 transitions, 109 flow. Second operand 2 states and 460 transitions. [2023-08-30 09:33:48,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 121 flow [2023-08-30 09:33:48,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 30 transitions, 116 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-30 09:33:48,041 INFO L231 Difference]: Finished difference. Result has 31 places, 30 transitions, 64 flow [2023-08-30 09:33:48,042 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=494, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=64, PETRI_PLACES=31, PETRI_TRANSITIONS=30} [2023-08-30 09:33:48,045 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -8 predicate places. [2023-08-30 09:33:48,045 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 30 transitions, 64 flow [2023-08-30 09:33:48,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-30 09:33:48,046 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-30 09:33:48,046 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-30 09:33:48,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-30 09:33:48,047 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2023-08-30 09:33:48,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-30 09:33:48,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1011, now seen corresponding path program 1 times [2023-08-30 09:33:48,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-30 09:33:48,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237395371] [2023-08-30 09:33:48,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-30 09:33:48,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-30 09:33:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 09:33:48,097 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-30 09:33:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-30 09:33:48,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-30 09:33:48,158 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-30 09:33:48,159 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2023-08-30 09:33:48,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2023-08-30 09:33:48,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2023-08-30 09:33:48,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2023-08-30 09:33:48,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2023-08-30 09:33:48,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2023-08-30 09:33:48,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2023-08-30 09:33:48,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2023-08-30 09:33:48,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2023-08-30 09:33:48,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2023-08-30 09:33:48,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2023-08-30 09:33:48,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-08-30 09:33:48,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2023-08-30 09:33:48,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2023-08-30 09:33:48,163 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2023-08-30 09:33:48,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2023-08-30 09:33:48,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2023-08-30 09:33:48,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2023-08-30 09:33:48,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2023-08-30 09:33:48,165 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2023-08-30 09:33:48,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-30 09:33:48,167 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-08-30 09:33:48,172 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-30 09:33:48,174 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-30 09:33:48,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 09:33:48 BasicIcfg [2023-08-30 09:33:48,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-30 09:33:48,190 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-30 09:33:48,190 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-30 09:33:48,190 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-30 09:33:48,191 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 09:33:32" (3/4) ... [2023-08-30 09:33:48,192 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-08-30 09:33:48,232 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-30 09:33:48,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-30 09:33:48,234 INFO L158 Benchmark]: Toolchain (without parser) took 18029.72ms. Allocated memory was 67.1MB in the beginning and 144.7MB in the end (delta: 77.6MB). Free memory was 46.2MB in the beginning and 91.5MB in the end (delta: -45.4MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2023-08-30 09:33:48,234 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 44.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-30 09:33:48,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1073.33ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 45.9MB in the beginning and 36.9MB in the end (delta: 9.1MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2023-08-30 09:33:48,235 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.02ms. Allocated memory is still 83.9MB. Free memory was 36.9MB in the beginning and 55.9MB in the end (delta: -19.0MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2023-08-30 09:33:48,238 INFO L158 Benchmark]: Boogie Preprocessor took 52.19ms. Allocated memory is still 83.9MB. Free memory was 55.4MB in the beginning and 52.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:33:48,239 INFO L158 Benchmark]: RCFGBuilder took 720.83ms. Allocated memory is still 83.9MB. Free memory was 52.5MB in the beginning and 49.6MB in the end (delta: 3.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-08-30 09:33:48,240 INFO L158 Benchmark]: TraceAbstraction took 16042.14ms. Allocated memory was 83.9MB in the beginning and 144.7MB in the end (delta: 60.8MB). Free memory was 49.1MB in the beginning and 93.6MB in the end (delta: -44.5MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2023-08-30 09:33:48,240 INFO L158 Benchmark]: Witness Printer took 42.90ms. Allocated memory is still 144.7MB. Free memory was 93.6MB in the beginning and 91.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-30 09:33:48,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 67.1MB. Free memory was 44.5MB in the beginning and 44.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1073.33ms. Allocated memory was 67.1MB in the beginning and 83.9MB in the end (delta: 16.8MB). Free memory was 45.9MB in the beginning and 36.9MB in the end (delta: 9.1MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.02ms. Allocated memory is still 83.9MB. Free memory was 36.9MB in the beginning and 55.9MB in the end (delta: -19.0MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.19ms. Allocated memory is still 83.9MB. Free memory was 55.4MB in the beginning and 52.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 720.83ms. Allocated memory is still 83.9MB. Free memory was 52.5MB in the beginning and 49.6MB in the end (delta: 3.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 16042.14ms. Allocated memory was 83.9MB in the beginning and 144.7MB in the end (delta: 60.8MB). Free memory was 49.1MB in the beginning and 93.6MB in the end (delta: -44.5MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Witness Printer took 42.90ms. Allocated memory is still 144.7MB. Free memory was 93.6MB in the beginning and 91.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.0s, 198 PlacesBefore, 39 PlacesAfterwards, 219 TransitionsBefore, 50 TransitionsAfterwards, 13862 CoEnabledTransitionPairs, 7 FixpointIterations, 61 TrivialSequentialCompositions, 151 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 30 ConcurrentYvCompositions, 10 ChoiceCompositions, 252 TotalNumberOfCompositions, 15107 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13219, independent: 13143, independent conditional: 0, independent unconditional: 13143, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7984, independent: 7956, independent conditional: 0, independent unconditional: 7956, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13219, independent: 5187, independent conditional: 0, independent unconditional: 5187, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 7984, unknown conditional: 0, unknown unconditional: 7984] , Statistics on independence cache: Total cache size (in pairs): 100, Positive cache size: 95, Positive conditional cache size: 0, Positive unconditional cache size: 95, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1839]: integer overflow possible integer overflow possible We found a FailurePath: [L1797] pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1798] long counter; [L1799] time_t end_time; [L1836] int status; [L1837] pthread_t counter_thread_id; [L1838] pthread_t monitor_thread_id; [L1839] time (((void *)0)) + 60 VAL [\old(argc)=2147483589, argc=2147483589, argv={2147483590:2147483591}, argv={2147483590:2147483591}, counter=0, counter_thread_id={27:0}, end_time=0, monitor_thread_id={26:0}, mutex={25:0}, time (((void *)0))=2147483588] - UnprovableResult [Line: 1830]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1807]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1807]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1840]: 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. - UnprovableResult [Line: 1843]: 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 5 procedures, 312 locations, 20 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: 15.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 0.1s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2023-08-30 09:33:48,264 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)