/usr/bin/java -Xmx8000000000 -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-MCRwithDepranks-Lazy.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/goblint-regression/04-mutex_14-funarg_rc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 02:54:11,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 02:54:11,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 02:54:11,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 02:54:11,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 02:54:11,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 02:54:11,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 02:54:11,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 02:54:11,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 02:54:11,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 02:54:11,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 02:54:11,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 02:54:11,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 02:54:11,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 02:54:11,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 02:54:11,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 02:54:11,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 02:54:11,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 02:54:11,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 02:54:11,916 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 02:54:11,918 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 02:54:11,919 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 02:54:11,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 02:54:11,921 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 02:54:11,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 02:54:11,926 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 02:54:11,927 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 02:54:11,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 02:54:11,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 02:54:11,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 02:54:11,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 02:54:11,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 02:54:11,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 02:54:11,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 02:54:11,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 02:54:11,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 02:54:11,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 02:54:11,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 02:54:11,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 02:54:11,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 02:54:11,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 02:54:11,940 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-MCRwithDepranks-Lazy.epf [2022-02-20 02:54:11,967 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 02:54:11,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 02:54:11,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 02:54:11,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 02:54:11,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 02:54:11,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 02:54:11,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 02:54:11,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 02:54:11,969 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 02:54:11,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 02:54:11,970 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 02:54:11,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 02:54:11,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 02:54:11,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 02:54:11,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 02:54:11,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 02:54:11,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 02:54:11,971 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 02:54:11,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 02:54:11,971 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 02:54:11,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 02:54:11,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 02:54:11,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 02:54:11,971 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 02:54:11,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 02:54:11,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 02:54:11,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 02:54:11,973 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 02:54:11,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 02:54:11,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 02:54:11,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 02:54:11,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 02:54:11,973 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 02:54:11,973 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 02:54:11,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 02:54:11,974 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 02:54:11,974 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false [2022-02-20 02:54:12,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 02:54:12,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 02:54:12,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 02:54:12,194 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 02:54:12,195 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 02:54:12,196 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_14-funarg_rc.i [2022-02-20 02:54:12,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bd28d7d7/090e016a3e47477bb4efa032059d5ff3/FLAG7739a9769 [2022-02-20 02:54:12,707 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 02:54:12,712 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_14-funarg_rc.i [2022-02-20 02:54:12,728 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bd28d7d7/090e016a3e47477bb4efa032059d5ff3/FLAG7739a9769 [2022-02-20 02:54:12,741 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bd28d7d7/090e016a3e47477bb4efa032059d5ff3 [2022-02-20 02:54:12,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 02:54:12,744 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-20 02:54:12,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 02:54:12,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 02:54:12,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 02:54:12,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 02:54:12" (1/1) ... [2022-02-20 02:54:12,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e40e0a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:54:12, skipping insertion in model container [2022-02-20 02:54:12,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 02:54:12" (1/1) ... [2022-02-20 02:54:12,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 02:54:12,796 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 02:54:13,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 02:54:13,172 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 02:54:13,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 02:54:13,233 INFO L208 MainTranslator]: Completed translation [2022-02-20 02:54:13,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:54:13 WrapperNode [2022-02-20 02:54:13,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 02:54:13,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 02:54:13,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 02:54:13,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 02:54:13,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:54:13" (1/1) ... [2022-02-20 02:54:13,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:54:13" (1/1) ... [2022-02-20 02:54:13,281 INFO L137 Inliner]: procedures = 263, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 66 [2022-02-20 02:54:13,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 02:54:13,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 02:54:13,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 02:54:13,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 02:54:13,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:54:13" (1/1) ... [2022-02-20 02:54:13,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:54:13" (1/1) ... [2022-02-20 02:54:13,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:54:13" (1/1) ... [2022-02-20 02:54:13,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:54:13" (1/1) ... [2022-02-20 02:54:13,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:54:13" (1/1) ... [2022-02-20 02:54:13,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:54:13" (1/1) ... [2022-02-20 02:54:13,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:54:13" (1/1) ... [2022-02-20 02:54:13,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 02:54:13,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 02:54:13,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 02:54:13,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 02:54:13,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:54:13" (1/1) ... [2022-02-20 02:54:13,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 02:54:13,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 02:54:13,324 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) [2022-02-20 02:54:13,328 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 [2022-02-20 02:54:13,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 02:54:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 02:54:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 02:54:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 02:54:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-02-20 02:54:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 02:54:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-02-20 02:54:13,367 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-02-20 02:54:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 02:54:13,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 02:54:13,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 02:54:13,368 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 02:54:13,467 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 02:54:13,468 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 02:54:13,660 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 02:54:13,668 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 02:54:13,668 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 02:54:13,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 02:54:13 BoogieIcfgContainer [2022-02-20 02:54:13,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 02:54:13,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 02:54:13,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 02:54:13,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 02:54:13,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 02:54:12" (1/3) ... [2022-02-20 02:54:13,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6c6b18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 02:54:13, skipping insertion in model container [2022-02-20 02:54:13,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 02:54:13" (2/3) ... [2022-02-20 02:54:13,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6c6b18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 02:54:13, skipping insertion in model container [2022-02-20 02:54:13,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 02:54:13" (3/3) ... [2022-02-20 02:54:13,677 INFO L111 eAbstractionObserver]: Analyzing ICFG 04-mutex_14-funarg_rc.i [2022-02-20 02:54:13,684 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 02:54:13,684 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 02:54:13,684 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-02-20 02:54:13,685 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 02:54:13,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,731 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,731 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,731 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,731 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,732 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,732 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,733 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,734 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,736 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,736 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,736 WARN L322 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,737 WARN L322 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-20 02:54:13,739 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-02-20 02:54:13,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 02:54:13,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 02:54:13,781 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) [2022-02-20 02:54:13,782 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 [2022-02-20 02:54:13,801 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 02:54:13,805 INFO L339 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, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-20 02:54:13,805 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-02-20 02:54:13,858 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 51 transitions and produced 52 states. [2022-02-20 02:54:13,859 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-02-20 02:54:13,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 02:54:13,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1939051801, now seen corresponding path program 1 times [2022-02-20 02:54:13,870 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 02:54:13,870 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821287438] [2022-02-20 02:54:13,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 02:54:13,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 02:54:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 02:54:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 02:54:14,049 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 02:54:14,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821287438] [2022-02-20 02:54:14,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821287438] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 02:54:14,050 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 02:54:14,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 02:54:14,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286325834] [2022-02-20 02:54:14,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 02:54:14,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 02:54:14,054 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 02:54:14,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 02:54:14,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 02:54:14,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 02:54:14,070 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 02:54:14,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 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) [2022-02-20 02:54:14,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 02:54:14,115 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 97 transitions and produced 98 states. [2022-02-20 02:54:14,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:54:14,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 02:54:14,116 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-02-20 02:54:14,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 02:54:14,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1484727409, now seen corresponding path program 1 times [2022-02-20 02:54:14,117 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 02:54:14,117 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767686006] [2022-02-20 02:54:14,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 02:54:14,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 02:54:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 02:54:14,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 02:54:14,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 02:54:14,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767686006] [2022-02-20 02:54:14,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767686006] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 02:54:14,312 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 02:54:14,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-20 02:54:14,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093974946] [2022-02-20 02:54:14,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 02:54:14,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-20 02:54:14,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 02:54:14,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-20 02:54:14,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-02-20 02:54:14,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 02:54:14,318 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 02:54:14,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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) [2022-02-20 02:54:14,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:54:14,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 02:54:14,372 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 107 transitions and produced 108 states. [2022-02-20 02:54:14,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:54:14,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-20 02:54:14,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 02:54:14,373 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-02-20 02:54:14,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 02:54:14,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1804631314, now seen corresponding path program 1 times [2022-02-20 02:54:14,374 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 02:54:14,374 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491814741] [2022-02-20 02:54:14,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 02:54:14,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 02:54:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 02:54:14,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 02:54:14,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 02:54:14,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491814741] [2022-02-20 02:54:14,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491814741] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 02:54:14,467 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 02:54:14,467 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 02:54:14,467 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377042730] [2022-02-20 02:54:14,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 02:54:14,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 02:54:14,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 02:54:14,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 02:54:14,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 02:54:14,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 02:54:14,468 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 02:54:14,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 37.0) internal successors, (74), 3 states have internal predecessors, (74), 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) [2022-02-20 02:54:14,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:54:14,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-20 02:54:14,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 02:54:14,615 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1469 transitions and produced 862 states. [2022-02-20 02:54:14,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:54:14,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-20 02:54:14,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 02:54:14,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-20 02:54:14,616 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-02-20 02:54:14,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 02:54:14,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1987494670, now seen corresponding path program 1 times [2022-02-20 02:54:14,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 02:54:14,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106405196] [2022-02-20 02:54:14,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 02:54:14,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 02:54:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 02:54:14,649 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 02:54:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 02:54:14,695 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 02:54:14,696 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 02:54:14,696 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-02-20 02:54:14,697 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2022-02-20 02:54:14,698 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2022-02-20 02:54:14,698 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 8 remaining) [2022-02-20 02:54:14,698 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2022-02-20 02:54:14,698 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-02-20 02:54:14,698 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-02-20 02:54:14,698 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-02-20 02:54:14,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-20 02:54:14,709 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-02-20 02:54:14,713 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 02:54:14,714 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 02:54:14,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 02:54:14 BasicIcfg [2022-02-20 02:54:14,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 02:54:14,746 INFO L158 Benchmark]: Toolchain (without parser) took 2002.15ms. Allocated memory was 182.5MB in the beginning and 276.8MB in the end (delta: 94.4MB). Free memory was 130.8MB in the beginning and 230.1MB in the end (delta: -99.3MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 02:54:14,747 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory is still 149.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 02:54:14,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 486.54ms. Allocated memory is still 182.5MB. Free memory was 130.7MB in the beginning and 141.1MB in the end (delta: -10.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-02-20 02:54:14,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.45ms. Allocated memory is still 182.5MB. Free memory was 141.1MB in the beginning and 138.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-20 02:54:14,748 INFO L158 Benchmark]: Boogie Preprocessor took 15.74ms. Allocated memory is still 182.5MB. Free memory was 138.5MB in the beginning and 136.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 02:54:14,748 INFO L158 Benchmark]: RCFGBuilder took 372.03ms. Allocated memory is still 182.5MB. Free memory was 136.9MB in the beginning and 123.7MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-20 02:54:14,749 INFO L158 Benchmark]: TraceAbstraction took 1074.54ms. Allocated memory was 182.5MB in the beginning and 276.8MB in the end (delta: 94.4MB). Free memory was 123.3MB in the beginning and 230.1MB in the end (delta: -106.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 02:54:14,751 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory is still 149.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 486.54ms. Allocated memory is still 182.5MB. Free memory was 130.7MB in the beginning and 141.1MB in the end (delta: -10.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.45ms. Allocated memory is still 182.5MB. Free memory was 141.1MB in the beginning and 138.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.74ms. Allocated memory is still 182.5MB. Free memory was 138.5MB in the beginning and 136.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 372.03ms. Allocated memory is still 182.5MB. Free memory was 136.9MB in the beginning and 123.7MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1074.54ms. Allocated memory was 182.5MB in the beginning and 276.8MB in the end (delta: 94.4MB). Free memory was 123.3MB in the beginning and 230.1MB in the end (delta: -106.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 937]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={2:0}, myglobal=0] [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={2:0}, mutex2={3:0}, myglobal=0] [L920] 0 pthread_mutex_t mutex3 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={2:0}, mutex2={3:0}, mutex3={4:0}, myglobal=0] [L931] 0 pthread_t id; VAL [id={5:0}, mutex1={2:0}, mutex2={3:0}, mutex3={4:0}, myglobal=0] [L932] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, mutex1={2:0}, mutex2={3:0}, mutex3={4:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L934] 0 printf("myglobal equals %d\n",myglobal) VAL [arg={0:0}, id={5:0}, mutex1={2:0}, mutex2={3:0}, mutex3={4:0}, myglobal=0] [L923] EXPR 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={2:0}, mutex2={3:0}, mutex3={4:0}, myglobal=0] [L923] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={2:0}, mutex2={3:0}, mutex3={4:0}, myglobal=1, myglobal=myglobal+1=25] [L937] 0 add1(myglobal) VAL [arg={0:0}, arg={0:0}, id={5:0}, mutex1={2:0}, mutex2={3:0}, mutex3={4:0}, myglobal=1, myglobal=myglobal+1=25] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [923] and C: add1(myglobal) [937] - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: 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: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 110 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 0.3s InterpolantComputationTime, 238 NumberOfCodeBlocks, 238 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 179 ConstructedInterpolants, 0 QuantifiedInterpolants, 264 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 could not prove your program: unable to determine feasibility of some traces [2022-02-20 02:54:14,805 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 [2022-02-20 02:54:15,021 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...