/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_03-munge_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 19:04:49,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 19:04:49,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 19:04:49,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 19:04:49,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 19:04:49,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 19:04:49,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 19:04:49,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 19:04:49,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 19:04:49,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 19:04:49,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 19:04:49,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 19:04:49,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 19:04:49,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 19:04:49,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 19:04:49,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 19:04:49,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 19:04:49,309 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 19:04:49,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 19:04:49,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 19:04:49,312 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 19:04:49,313 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 19:04:49,314 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 19:04:49,315 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 19:04:49,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 19:04:49,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 19:04:49,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 19:04:49,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 19:04:49,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 19:04:49,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 19:04:49,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 19:04:49,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 19:04:49,322 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 19:04:49,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 19:04:49,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 19:04:49,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 19:04:49,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 19:04:49,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 19:04:49,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 19:04:49,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 19:04:49,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 19:04:49,326 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-27 19:04:49,356 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 19:04:49,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 19:04:49,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 19:04:49,357 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 19:04:49,358 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 19:04:49,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 19:04:49,358 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 19:04:49,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 19:04:49,359 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 19:04:49,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 19:04:49,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 19:04:49,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 19:04:49,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 19:04:49,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 19:04:49,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 19:04:49,360 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 19:04:49,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 19:04:49,360 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 19:04:49,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 19:04:49,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 19:04:49,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 19:04:49,361 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 19:04:49,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 19:04:49,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:04:49,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 19:04:49,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 19:04:49,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 19:04:49,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 19:04:49,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 19:04:49,362 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 19:04:49,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 19:04:49,362 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 19:04:49,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 19:04:49,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 19:04:49,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 19:04:49,627 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 19:04:49,629 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 19:04:49,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_03-munge_racing.i [2023-01-27 19:04:50,732 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 19:04:50,994 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 19:04:50,995 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_03-munge_racing.i [2023-01-27 19:04:51,015 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ee85effe/56b93fde2d5a4c15b3de199472b63fca/FLAG59622f2bc [2023-01-27 19:04:51,031 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ee85effe/56b93fde2d5a4c15b3de199472b63fca [2023-01-27 19:04:51,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 19:04:51,034 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 19:04:51,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 19:04:51,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 19:04:51,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 19:04:51,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:04:51" (1/1) ... [2023-01-27 19:04:51,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aedb6c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:51, skipping insertion in model container [2023-01-27 19:04:51,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:04:51" (1/1) ... [2023-01-27 19:04:51,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 19:04:51,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 19:04:51,416 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_03-munge_racing.i[30176,30189] [2023-01-27 19:04:51,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:04:51,460 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 19:04:51,502 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_03-munge_racing.i[30176,30189] [2023-01-27 19:04:51,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:04:51,554 INFO L208 MainTranslator]: Completed translation [2023-01-27 19:04:51,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:51 WrapperNode [2023-01-27 19:04:51,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 19:04:51,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 19:04:51,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 19:04:51,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 19:04:51,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:51" (1/1) ... [2023-01-27 19:04:51,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:51" (1/1) ... [2023-01-27 19:04:51,613 INFO L138 Inliner]: procedures = 172, calls = 43, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 201 [2023-01-27 19:04:51,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 19:04:51,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 19:04:51,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 19:04:51,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 19:04:51,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:51" (1/1) ... [2023-01-27 19:04:51,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:51" (1/1) ... [2023-01-27 19:04:51,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:51" (1/1) ... [2023-01-27 19:04:51,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:51" (1/1) ... [2023-01-27 19:04:51,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:51" (1/1) ... [2023-01-27 19:04:51,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:51" (1/1) ... [2023-01-27 19:04:51,648 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:51" (1/1) ... [2023-01-27 19:04:51,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:51" (1/1) ... [2023-01-27 19:04:51,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 19:04:51,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 19:04:51,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 19:04:51,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 19:04:51,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:51" (1/1) ... [2023-01-27 19:04:51,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:04:51,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:04:51,686 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-27 19:04:51,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-27 19:04:51,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 19:04:51,718 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-01-27 19:04:51,718 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-01-27 19:04:51,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 19:04:51,719 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 19:04:51,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 19:04:51,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 19:04:51,719 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-01-27 19:04:51,719 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-01-27 19:04:51,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 19:04:51,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 19:04:51,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 19:04:51,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 19:04:51,723 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 19:04:51,908 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 19:04:51,909 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 19:04:52,136 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 19:04:52,142 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 19:04:52,143 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-01-27 19:04:52,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:04:52 BoogieIcfgContainer [2023-01-27 19:04:52,145 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 19:04:52,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 19:04:52,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 19:04:52,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 19:04:52,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:04:51" (1/3) ... [2023-01-27 19:04:52,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b1d95b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:04:52, skipping insertion in model container [2023-01-27 19:04:52,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:04:51" (2/3) ... [2023-01-27 19:04:52,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b1d95b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:04:52, skipping insertion in model container [2023-01-27 19:04:52,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:04:52" (3/3) ... [2023-01-27 19:04:52,152 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_03-munge_racing.i [2023-01-27 19:04:52,167 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 19:04:52,167 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-27 19:04:52,167 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 19:04:52,262 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-01-27 19:04:52,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 171 places, 198 transitions, 418 flow [2023-01-27 19:04:52,398 INFO L130 PetriNetUnfolder]: 58/356 cut-off events. [2023-01-27 19:04:52,398 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-01-27 19:04:52,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 356 events. 58/356 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1472 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 189. Up to 8 conditions per place. [2023-01-27 19:04:52,411 INFO L82 GeneralOperation]: Start removeDead. Operand has 171 places, 198 transitions, 418 flow [2023-01-27 19:04:52,418 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 171 places, 198 transitions, 418 flow [2023-01-27 19:04:52,421 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:04:52,429 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 171 places, 198 transitions, 418 flow [2023-01-27 19:04:52,431 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 171 places, 198 transitions, 418 flow [2023-01-27 19:04:52,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 171 places, 198 transitions, 418 flow [2023-01-27 19:04:52,484 INFO L130 PetriNetUnfolder]: 58/356 cut-off events. [2023-01-27 19:04:52,484 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-01-27 19:04:52,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 376 conditions, 356 events. 58/356 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1472 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 189. Up to 8 conditions per place. [2023-01-27 19:04:52,498 INFO L119 LiptonReduction]: Number of co-enabled transitions 15876 [2023-01-27 19:04:56,017 INFO L134 LiptonReduction]: Checked pairs total: 30997 [2023-01-27 19:04:56,017 INFO L136 LiptonReduction]: Total number of compositions: 140 [2023-01-27 19:04:56,030 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:04:56,036 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5260a46b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:04:56,036 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-01-27 19:04:56,040 INFO L130 PetriNetUnfolder]: 1/21 cut-off events. [2023-01-27 19:04:56,040 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:04:56,040 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:04:56,041 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-01-27 19:04:56,041 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2023-01-27 19:04:56,045 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:04:56,045 INFO L85 PathProgramCache]: Analyzing trace with hash -2102750666, now seen corresponding path program 1 times [2023-01-27 19:04:56,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:04:56,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011970792] [2023-01-27 19:04:56,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:04:56,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:04:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:04:56,151 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 19:04:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:04:56,191 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 19:04:56,192 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 19:04:56,193 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 6 remaining) [2023-01-27 19:04:56,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2023-01-27 19:04:56,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2023-01-27 19:04:56,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2023-01-27 19:04:56,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2023-01-27 19:04:56,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2023-01-27 19:04:56,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:04:56,196 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 19:04:56,198 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 19:04:56,198 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-01-27 19:04:56,238 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-01-27 19:04:56,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 312 transitions, 672 flow [2023-01-27 19:04:56,423 INFO L130 PetriNetUnfolder]: 197/1044 cut-off events. [2023-01-27 19:04:56,423 INFO L131 PetriNetUnfolder]: For 72/75 co-relation queries the response was YES. [2023-01-27 19:04:56,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1141 conditions, 1044 events. 197/1044 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6019 event pairs, 1 based on Foata normal form. 0/852 useless extension candidates. Maximal degree in co-relation 645. Up to 32 conditions per place. [2023-01-27 19:04:56,443 INFO L82 GeneralOperation]: Start removeDead. Operand has 261 places, 312 transitions, 672 flow [2023-01-27 19:04:56,486 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 261 places, 312 transitions, 672 flow [2023-01-27 19:04:56,487 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:04:56,487 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 261 places, 312 transitions, 672 flow [2023-01-27 19:04:56,487 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 261 places, 312 transitions, 672 flow [2023-01-27 19:04:56,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 261 places, 312 transitions, 672 flow [2023-01-27 19:04:56,626 INFO L130 PetriNetUnfolder]: 197/1044 cut-off events. [2023-01-27 19:04:56,626 INFO L131 PetriNetUnfolder]: For 72/75 co-relation queries the response was YES. [2023-01-27 19:04:56,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1141 conditions, 1044 events. 197/1044 cut-off events. For 72/75 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6019 event pairs, 1 based on Foata normal form. 0/852 useless extension candidates. Maximal degree in co-relation 645. Up to 32 conditions per place. [2023-01-27 19:04:56,694 INFO L119 LiptonReduction]: Number of co-enabled transitions 57240 [2023-01-27 19:05:00,360 INFO L134 LiptonReduction]: Checked pairs total: 122272 [2023-01-27 19:05:00,360 INFO L136 LiptonReduction]: Total number of compositions: 209 [2023-01-27 19:05:00,364 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:05:00,369 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5260a46b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:05:00,369 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-01-27 19:05:00,372 INFO L130 PetriNetUnfolder]: 7/40 cut-off events. [2023-01-27 19:05:00,372 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 19:05:00,372 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:05:00,372 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:05:00,372 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2023-01-27 19:05:00,372 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:05:00,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1308539619, now seen corresponding path program 1 times [2023-01-27 19:05:00,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:05:00,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730847031] [2023-01-27 19:05:00,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:05:00,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:05:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:05:00,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:05:00,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:05:00,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730847031] [2023-01-27 19:05:00,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730847031] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:05:00,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:05:00,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 19:05:00,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675953247] [2023-01-27 19:05:00,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:05:00,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 19:05:00,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:05:00,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 19:05:00,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 19:05:00,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 521 [2023-01-27 19:05:00,630 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 149 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 229.0) internal successors, (687), 3 states have internal predecessors, (687), 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) [2023-01-27 19:05:00,630 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:05:00,630 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 521 [2023-01-27 19:05:00,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand