/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_45-escape_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 19:16:57,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 19:16:57,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 19:16:57,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 19:16:57,915 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 19:16:57,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 19:16:57,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 19:16:57,921 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 19:16:57,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 19:16:57,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 19:16:57,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 19:16:57,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 19:16:57,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 19:16:57,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 19:16:57,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 19:16:57,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 19:16:57,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 19:16:57,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 19:16:57,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 19:16:57,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 19:16:57,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 19:16:57,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 19:16:57,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 19:16:57,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 19:16:57,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-27 19:16:57,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-27 19:16:57,946 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-27 19:16:57,947 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-27 19:16:57,947 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-27 19:16:57,948 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-27 19:16:57,948 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-27 19:16:57,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-27 19:16:57,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-27 19:16:57,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-27 19:16:57,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-27 19:16:57,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-27 19:16:57,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-27 19:16:57,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-27 19:16:57,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 19:16:57,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 19:16:57,952 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 19:16:57,953 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 19:16:57,975 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 19:16:57,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 19:16:57,976 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 19:16:57,976 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 19:16:57,977 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 19:16:57,977 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 19:16:57,977 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 19:16:57,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 19:16:57,977 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 19:16:57,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 19:16:57,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 19:16:57,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 19:16:57,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 19:16:57,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 19:16:57,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 19:16:57,979 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 19:16:57,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 19:16:57,979 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 19:16:57,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 19:16:57,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 19:16:57,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 19:16:57,979 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 19:16:57,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 19:16:57,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:16:57,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 19:16:57,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 19:16:57,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 19:16:57,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 19:16:57,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 19:16:57,980 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 19:16:57,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 19:16:57,980 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 19:16:58,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 19:16:58,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 19:16:58,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 19:16:58,203 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 19:16:58,204 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 19:16:58,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2023-01-27 19:16:59,409 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 19:16:59,616 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 19:16:59,616 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2023-01-27 19:16:59,625 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8595841f2/61cf45200e8c481aaec471875a92272d/FLAG1ac3c9cf9 [2023-01-27 19:16:59,635 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8595841f2/61cf45200e8c481aaec471875a92272d [2023-01-27 19:16:59,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 19:16:59,638 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 19:16:59,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 19:16:59,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 19:16:59,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 19:16:59,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:16:59" (1/1) ... [2023-01-27 19:16:59,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4897fb84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:16:59, skipping insertion in model container [2023-01-27 19:16:59,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:16:59" (1/1) ... [2023-01-27 19:16:59,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 19:16:59,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 19:16:59,834 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_45-escape_racing.i[30176,30189] [2023-01-27 19:16:59,845 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:16:59,853 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 19:16:59,873 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_45-escape_racing.i[30176,30189] [2023-01-27 19:16:59,877 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:16:59,899 INFO L208 MainTranslator]: Completed translation [2023-01-27 19:16:59,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:16:59 WrapperNode [2023-01-27 19:16:59,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 19:16:59,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 19:16:59,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 19:16:59,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 19:16:59,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:16:59" (1/1) ... [2023-01-27 19:16:59,913 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:16:59" (1/1) ... [2023-01-27 19:16:59,926 INFO L138 Inliner]: procedures = 170, calls = 45, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2023-01-27 19:16:59,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 19:16:59,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 19:16:59,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 19:16:59,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 19:16:59,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:16:59" (1/1) ... [2023-01-27 19:16:59,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:16:59" (1/1) ... [2023-01-27 19:16:59,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:16:59" (1/1) ... [2023-01-27 19:16:59,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:16:59" (1/1) ... [2023-01-27 19:16:59,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:16:59" (1/1) ... [2023-01-27 19:16:59,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:16:59" (1/1) ... [2023-01-27 19:16:59,941 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:16:59" (1/1) ... [2023-01-27 19:16:59,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:16:59" (1/1) ... [2023-01-27 19:16:59,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 19:16:59,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 19:16:59,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 19:16:59,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 19:16:59,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:16:59" (1/1) ... [2023-01-27 19:16:59,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:16:59,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:16:59,969 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 19:16:59,976 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 19:16:59,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 19:16:59,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 19:16:59,995 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 19:16:59,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 19:16:59,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 19:16:59,995 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-27 19:16:59,995 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-27 19:16:59,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 19:16:59,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 19:16:59,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 19:16:59,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 19:16:59,996 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 19:17:00,075 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 19:17:00,076 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 19:17:00,259 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 19:17:00,264 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 19:17:00,264 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-01-27 19:17:00,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:17:00 BoogieIcfgContainer [2023-01-27 19:17:00,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 19:17:00,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 19:17:00,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 19:17:00,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 19:17:00,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:16:59" (1/3) ... [2023-01-27 19:17:00,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3454f15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:17:00, skipping insertion in model container [2023-01-27 19:17:00,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:16:59" (2/3) ... [2023-01-27 19:17:00,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3454f15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:17:00, skipping insertion in model container [2023-01-27 19:17:00,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:17:00" (3/3) ... [2023-01-27 19:17:00,276 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2023-01-27 19:17:00,289 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 19:17:00,289 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 19:17:00,289 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 19:17:00,354 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-01-27 19:17:00,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 102 transitions, 212 flow [2023-01-27 19:17:00,431 INFO L130 PetriNetUnfolder]: 9/101 cut-off events. [2023-01-27 19:17:00,432 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 19:17:00,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 101 events. 9/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 149 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2023-01-27 19:17:00,438 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 102 transitions, 212 flow [2023-01-27 19:17:00,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 92 transitions, 187 flow [2023-01-27 19:17:00,447 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:17:00,465 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 92 transitions, 187 flow [2023-01-27 19:17:00,467 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 92 transitions, 187 flow [2023-01-27 19:17:00,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 92 transitions, 187 flow [2023-01-27 19:17:00,532 INFO L130 PetriNetUnfolder]: 9/92 cut-off events. [2023-01-27 19:17:00,532 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:17:00,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 92 events. 9/92 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 126 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 55. Up to 3 conditions per place. [2023-01-27 19:17:00,534 INFO L119 LiptonReduction]: Number of co-enabled transitions 1452 [2023-01-27 19:17:03,138 INFO L134 LiptonReduction]: Checked pairs total: 3012 [2023-01-27 19:17:03,138 INFO L136 LiptonReduction]: Total number of compositions: 77 [2023-01-27 19:17:03,158 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:17:03,162 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;@2776ec86, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:17:03,163 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-27 19:17:03,169 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2023-01-27 19:17:03,169 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:17:03,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:17:03,170 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-27 19:17:03,170 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 19:17:03,175 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:17:03,175 INFO L85 PathProgramCache]: Analyzing trace with hash 360293902, now seen corresponding path program 1 times [2023-01-27 19:17:03,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:17:03,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515610859] [2023-01-27 19:17:03,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:17:03,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:17:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:17:03,536 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 19:17:03,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:17:03,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515610859] [2023-01-27 19:17:03,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515610859] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:17:03,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:17:03,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-27 19:17:03,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504632704] [2023-01-27 19:17:03,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:17:03,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 19:17:03,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:17:03,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 19:17:03,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 19:17:03,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 179 [2023-01-27 19:17:03,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 26 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 19:17:03,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:17:03,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 179 [2023-01-27 19:17:03,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:17:03,646 INFO L130 PetriNetUnfolder]: 54/144 cut-off events. [2023-01-27 19:17:03,646 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:17:03,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 144 events. 54/144 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 512 event pairs, 15 based on Foata normal form. 6/143 useless extension candidates. Maximal degree in co-relation 273. Up to 75 conditions per place. [2023-01-27 19:17:03,648 INFO L137 encePairwiseOnDemand]: 166/179 looper letters, 13 selfloop transitions, 2 changer transitions 12/28 dead transitions. [2023-01-27 19:17:03,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 28 transitions, 111 flow [2023-01-27 19:17:03,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 19:17:03,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 19:17:03,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 224 transitions. [2023-01-27 19:17:03,657 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4171322160148976 [2023-01-27 19:17:03,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 224 transitions. [2023-01-27 19:17:03,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 224 transitions. [2023-01-27 19:17:03,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:17:03,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 224 transitions. [2023-01-27 19:17:03,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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 19:17:03,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 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 19:17:03,665 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 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 19:17:03,666 INFO L175 Difference]: Start difference. First operand has 22 places, 26 transitions, 55 flow. Second operand 3 states and 224 transitions. [2023-01-27 19:17:03,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 28 transitions, 111 flow [2023-01-27 19:17:03,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 28 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 19:17:03,669 INFO L231 Difference]: Finished difference. Result has 24 places, 14 transitions, 40 flow [2023-01-27 19:17:03,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=24, PETRI_TRANSITIONS=14} [2023-01-27 19:17:03,673 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2023-01-27 19:17:03,673 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 14 transitions, 40 flow [2023-01-27 19:17:03,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 19:17:03,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:17:03,673 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:17:03,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:17:03,674 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 19:17:03,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:17:03,674 INFO L85 PathProgramCache]: Analyzing trace with hash 717087026, now seen corresponding path program 1 times [2023-01-27 19:17:03,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:17:03,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118073615] [2023-01-27 19:17:03,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:17:03,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:17:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:17:03,738 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 19:17:03,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:17:03,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118073615] [2023-01-27 19:17:03,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118073615] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:17:03,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:17:03,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 19:17:03,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136017187] [2023-01-27 19:17:03,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:17:03,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 19:17:03,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:17:03,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 19:17:03,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 19:17:03,741 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 179 [2023-01-27 19:17:03,741 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 14 transitions, 40 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 19:17:03,741 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:17:03,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 179 [2023-01-27 19:17:03,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:17:03,772 INFO L130 PetriNetUnfolder]: 10/41 cut-off events. [2023-01-27 19:17:03,772 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-01-27 19:17:03,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 41 events. 10/41 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 54 event pairs, 4 based on Foata normal form. 7/48 useless extension candidates. Maximal degree in co-relation 86. Up to 21 conditions per place. [2023-01-27 19:17:03,773 INFO L137 encePairwiseOnDemand]: 173/179 looper letters, 10 selfloop transitions, 6 changer transitions 1/18 dead transitions. [2023-01-27 19:17:03,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 84 flow [2023-01-27 19:17:03,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 19:17:03,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 19:17:03,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2023-01-27 19:17:03,775 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4506517690875233 [2023-01-27 19:17:03,775 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 242 transitions. [2023-01-27 19:17:03,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 242 transitions. [2023-01-27 19:17:03,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:17:03,775 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 242 transitions. [2023-01-27 19:17:03,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 19:17:03,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 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 19:17:03,777 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 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 19:17:03,777 INFO L175 Difference]: Start difference. First operand has 24 places, 14 transitions, 40 flow. Second operand 3 states and 242 transitions. [2023-01-27 19:17:03,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 84 flow [2023-01-27 19:17:03,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 18 transitions, 78 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-01-27 19:17:03,778 INFO L231 Difference]: Finished difference. Result has 21 places, 15 transitions, 56 flow [2023-01-27 19:17:03,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=21, PETRI_TRANSITIONS=15} [2023-01-27 19:17:03,779 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, -1 predicate places. [2023-01-27 19:17:03,779 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 15 transitions, 56 flow [2023-01-27 19:17:03,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 19:17:03,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:17:03,779 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:17:03,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 19:17:03,779 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-27 19:17:03,780 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:17:03,780 INFO L85 PathProgramCache]: Analyzing trace with hash 755391486, now seen corresponding path program 1 times [2023-01-27 19:17:03,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:17:03,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597860617] [2023-01-27 19:17:03,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:17:03,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:17:03,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:17:03,793 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 19:17:03,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:17:03,814 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 19:17:03,814 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 19:17:03,815 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-01-27 19:17:03,816 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-27 19:17:03,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 19:17:03,816 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-01-27 19:17:03,819 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 19:17:03,819 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 19:17:03,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:17:03 BasicIcfg [2023-01-27 19:17:03,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 19:17:03,836 INFO L158 Benchmark]: Toolchain (without parser) took 4198.04ms. Allocated memory is still 518.0MB. Free memory was 466.0MB in the beginning and 442.7MB in the end (delta: 23.3MB). Peak memory consumption was 24.7MB. Max. memory is 16.0GB. [2023-01-27 19:17:03,836 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 348.1MB. Free memory is still 297.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:17:03,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.20ms. Allocated memory is still 518.0MB. Free memory was 465.7MB in the beginning and 446.1MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-27 19:17:03,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.58ms. Allocated memory is still 518.0MB. Free memory was 446.1MB in the beginning and 444.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:17:03,837 INFO L158 Benchmark]: Boogie Preprocessor took 16.19ms. Allocated memory is still 518.0MB. Free memory was 444.0MB in the beginning and 442.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:17:03,838 INFO L158 Benchmark]: RCFGBuilder took 322.30ms. Allocated memory is still 518.0MB. Free memory was 442.6MB in the beginning and 427.6MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-01-27 19:17:03,838 INFO L158 Benchmark]: TraceAbstraction took 3568.80ms. Allocated memory is still 518.0MB. Free memory was 427.2MB in the beginning and 442.7MB in the end (delta: -15.6MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:17:03,839 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 348.1MB. Free memory is still 297.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 261.20ms. Allocated memory is still 518.0MB. Free memory was 465.7MB in the beginning and 446.1MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 25.58ms. Allocated memory is still 518.0MB. Free memory was 446.1MB in the beginning and 444.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 16.19ms. Allocated memory is still 518.0MB. Free memory was 444.0MB in the beginning and 442.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 322.30ms. Allocated memory is still 518.0MB. Free memory was 442.6MB in the beginning and 427.6MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3568.80ms. Allocated memory is still 518.0MB. Free memory was 427.2MB in the beginning and 442.7MB in the end (delta: -15.6MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 87 PlacesBefore, 22 PlacesAfterwards, 92 TransitionsBefore, 26 TransitionsAfterwards, 1452 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 77 TotalNumberOfCompositions, 3012 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1298, independent: 1150, independent conditional: 0, independent unconditional: 1150, dependent: 148, dependent conditional: 0, dependent unconditional: 148, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 799, independent: 763, independent conditional: 0, independent unconditional: 763, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1298, independent: 387, independent conditional: 0, independent unconditional: 387, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 799, unknown conditional: 0, unknown unconditional: 799] , Statistics on independence cache: Total cache size (in pairs): 34, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 691]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L696] 0 pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L707] 0 pthread_t id; [L708] 0 int i = 0; [L709] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [__global_lock={3:0}, arg={6:0}, i={6:0}, id={7:0}, mutex1={4:0}, mutex2={5:0}, pthread_create(&id, ((void *)0), t_fun, (void *) &i)=-1] [L700] 1 int *p = (int *) arg; [L702] EXPR 1 \read(*p) [L702] 1 (*p)++ [L711] EXPR 0 \read(i) [L711] CALL 0 __VERIFIER_assert((i) == 0) [L691] COND TRUE 0 !(cond) [L691] 0 reach_error() VAL [\old(cond)=0, __global_lock={3:0}, arg={6:0}, arg={6:0}, cond=0, mutex1={4:0}, mutex2={5:0}, p={6:0}] - UnprovableResult [Line: 709]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 123 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 58 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 58 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=2, InterpolantAutomatonStates: 6, 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-01-27 19:17:03,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...