/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-PN-NoLbe.epf --traceabstraction.use.on-demand.petri.net.difference true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-11 21:15:02,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-11 21:15:02,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-11 21:15:02,074 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-11 21:15:02,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-11 21:15:02,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-11 21:15:02,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-11 21:15:02,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-11 21:15:02,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-11 21:15:02,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-11 21:15:02,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-11 21:15:02,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-11 21:15:02,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-11 21:15:02,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-11 21:15:02,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-11 21:15:02,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-11 21:15:02,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-11 21:15:02,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-11 21:15:02,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-11 21:15:02,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-11 21:15:02,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-11 21:15:02,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-11 21:15:02,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-11 21:15:02,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-11 21:15:02,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-11 21:15:02,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-11 21:15:02,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-11 21:15:02,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-11 21:15:02,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-11 21:15:02,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-11 21:15:02,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-11 21:15:02,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-11 21:15:02,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-11 21:15:02,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-11 21:15:02,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-11 21:15:02,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-11 21:15:02,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-11 21:15:02,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-11 21:15:02,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-11 21:15:02,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-11 21:15:02,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-11 21:15:02,138 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-NoLbe.epf [2022-12-11 21:15:02,166 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-11 21:15:02,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-11 21:15:02,168 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-11 21:15:02,168 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-11 21:15:02,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-11 21:15:02,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-11 21:15:02,170 INFO L138 SettingsManager]: * Use SBE=true [2022-12-11 21:15:02,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-11 21:15:02,170 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-11 21:15:02,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-11 21:15:02,171 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-11 21:15:02,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-11 21:15:02,171 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-11 21:15:02,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-11 21:15:02,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-11 21:15:02,171 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-11 21:15:02,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-11 21:15:02,172 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-11 21:15:02,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-11 21:15:02,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-11 21:15:02,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-11 21:15:02,172 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-11 21:15:02,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-11 21:15:02,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:15:02,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-11 21:15:02,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-11 21:15:02,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-11 21:15:02,173 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-11 21:15:02,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-11 21:15:02,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-11 21:15:02,174 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-11 21:15:02,174 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true [2022-12-11 21:15:02,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-11 21:15:02,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-11 21:15:02,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-11 21:15:02,500 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-11 21:15:02,500 INFO L275 PluginConnector]: CDTParser initialized [2022-12-11 21:15:02,501 INFO L432 ainManager$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 [2022-12-11 21:15:03,725 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-11 21:15:03,947 INFO L351 CDTParser]: Found 1 translation units. [2022-12-11 21:15:03,947 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2022-12-11 21:15:03,970 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08fd06418/6a9e2e2a1b084d8d8bc056b07a2f7b4d/FLAG23e34a836 [2022-12-11 21:15:03,982 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08fd06418/6a9e2e2a1b084d8d8bc056b07a2f7b4d [2022-12-11 21:15:03,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-11 21:15:03,985 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-11 21:15:03,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-11 21:15:03,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-11 21:15:03,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-11 21:15:03,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:15:03" (1/1) ... [2022-12-11 21:15:03,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@675c0da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:03, skipping insertion in model container [2022-12-11 21:15:03,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.12 09:15:03" (1/1) ... [2022-12-11 21:15:03,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-11 21:15:04,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-11 21:15:04,242 WARN L237 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] [2022-12-11 21:15:04,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:15:04,288 INFO L203 MainTranslator]: Completed pre-run [2022-12-11 21:15:04,335 WARN L237 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] [2022-12-11 21:15:04,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-11 21:15:04,395 INFO L208 MainTranslator]: Completed translation [2022-12-11 21:15:04,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:04 WrapperNode [2022-12-11 21:15:04,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-11 21:15:04,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-11 21:15:04,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-11 21:15:04,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-11 21:15:04,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:04" (1/1) ... [2022-12-11 21:15:04,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:04" (1/1) ... [2022-12-11 21:15:04,454 INFO L138 Inliner]: procedures = 170, calls = 45, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-12-11 21:15:04,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-11 21:15:04,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-11 21:15:04,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-11 21:15:04,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-11 21:15:04,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:04" (1/1) ... [2022-12-11 21:15:04,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:04" (1/1) ... [2022-12-11 21:15:04,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:04" (1/1) ... [2022-12-11 21:15:04,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:04" (1/1) ... [2022-12-11 21:15:04,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:04" (1/1) ... [2022-12-11 21:15:04,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:04" (1/1) ... [2022-12-11 21:15:04,487 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:04" (1/1) ... [2022-12-11 21:15:04,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:04" (1/1) ... [2022-12-11 21:15:04,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-11 21:15:04,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-11 21:15:04,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-11 21:15:04,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-11 21:15:04,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:04" (1/1) ... [2022-12-11 21:15:04,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-11 21:15:04,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-11 21:15:04,524 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) [2022-12-11 21:15:04,550 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 [2022-12-11 21:15:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-11 21:15:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-11 21:15:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-11 21:15:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-11 21:15:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-11 21:15:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-11 21:15:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-11 21:15:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-11 21:15:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-11 21:15:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-11 21:15:04,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-11 21:15:04,567 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-11 21:15:04,741 INFO L236 CfgBuilder]: Building ICFG [2022-12-11 21:15:04,742 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-11 21:15:04,960 INFO L277 CfgBuilder]: Performing block encoding [2022-12-11 21:15:04,966 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-11 21:15:04,966 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-11 21:15:04,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:15:04 BoogieIcfgContainer [2022-12-11 21:15:04,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-11 21:15:04,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-11 21:15:04,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-11 21:15:04,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-11 21:15:04,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.12 09:15:03" (1/3) ... [2022-12-11 21:15:04,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70cea321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:15:04, skipping insertion in model container [2022-12-11 21:15:04,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.12 09:15:04" (2/3) ... [2022-12-11 21:15:04,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70cea321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.12 09:15:04, skipping insertion in model container [2022-12-11 21:15:04,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.12 09:15:04" (3/3) ... [2022-12-11 21:15:04,980 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2022-12-11 21:15:04,996 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-11 21:15:04,996 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-11 21:15:04,996 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-11 21:15:05,063 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-11 21:15:05,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 102 transitions, 212 flow [2022-12-11 21:15:05,170 INFO L130 PetriNetUnfolder]: 9/101 cut-off events. [2022-12-11 21:15:05,170 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-11 21:15:05,175 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. [2022-12-11 21:15:05,175 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 102 transitions, 212 flow [2022-12-11 21:15:05,180 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 92 transitions, 187 flow [2022-12-11 21:15:05,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-11 21:15:05,202 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;@20b70bc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-11 21:15:05,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-11 21:15:05,238 INFO L130 PetriNetUnfolder]: 2/77 cut-off events. [2022-12-11 21:15:05,238 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 21:15:05,238 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:15:05,239 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:15:05,239 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 21:15:05,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:15:05,244 INFO L85 PathProgramCache]: Analyzing trace with hash 881364983, now seen corresponding path program 1 times [2022-12-11 21:15:05,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:15:05,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588347170] [2022-12-11 21:15:05,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:15:05,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:15:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:15:05,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:15:05,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:15:05,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588347170] [2022-12-11 21:15:05,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588347170] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:15:05,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:15:05,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-11 21:15:05,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914581529] [2022-12-11 21:15:05,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:15:05,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-11 21:15:05,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:15:06,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-11 21:15:06,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-11 21:15:06,018 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 102 [2022-12-11 21:15:06,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 92 transitions, 187 flow. Second operand has 9 states, 9 states have (on average 49.77777777777778) internal successors, (448), 9 states have internal predecessors, (448), 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) [2022-12-11 21:15:06,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:15:06,022 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 102 [2022-12-11 21:15:06,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:15:06,400 INFO L130 PetriNetUnfolder]: 41/293 cut-off events. [2022-12-11 21:15:06,400 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-11 21:15:06,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 293 events. 41/293 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1337 event pairs, 10 based on Foata normal form. 96/386 useless extension candidates. Maximal degree in co-relation 360. Up to 29 conditions per place. [2022-12-11 21:15:06,403 INFO L137 encePairwiseOnDemand]: 83/102 looper letters, 34 selfloop transitions, 4 changer transitions 37/113 dead transitions. [2022-12-11 21:15:06,403 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 113 transitions, 373 flow [2022-12-11 21:15:06,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-11 21:15:06,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-11 21:15:06,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 758 transitions. [2022-12-11 21:15:06,422 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.530812324929972 [2022-12-11 21:15:06,425 INFO L295 CegarLoopForPetriNet]: 87 programPoint places, 12 predicate places. [2022-12-11 21:15:06,425 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 113 transitions, 373 flow [2022-12-11 21:15:06,427 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 76 transitions, 231 flow [2022-12-11 21:15:06,428 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 76 transitions, 231 flow [2022-12-11 21:15:06,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 49.77777777777778) internal successors, (448), 9 states have internal predecessors, (448), 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) [2022-12-11 21:15:06,428 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:15:06,429 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:15:06,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-11 21:15:06,429 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 21:15:06,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:15:06,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2010774531, now seen corresponding path program 1 times [2022-12-11 21:15:06,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:15:06,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458554817] [2022-12-11 21:15:06,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:15:06,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:15:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-11 21:15:06,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-11 21:15:06,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-11 21:15:06,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458554817] [2022-12-11 21:15:06,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458554817] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-11 21:15:06,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-11 21:15:06,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-11 21:15:06,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876194671] [2022-12-11 21:15:06,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-11 21:15:06,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-11 21:15:06,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-11 21:15:06,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-11 21:15:06,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-11 21:15:06,668 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 102 [2022-12-11 21:15:06,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 76 transitions, 231 flow. Second operand has 6 states, 6 states have (on average 70.83333333333333) internal successors, (425), 6 states have internal predecessors, (425), 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) [2022-12-11 21:15:06,669 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-11 21:15:06,669 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 102 [2022-12-11 21:15:06,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-11 21:15:06,752 INFO L130 PetriNetUnfolder]: 8/129 cut-off events. [2022-12-11 21:15:06,753 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-11 21:15:06,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 129 events. 8/129 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 176 event pairs, 4 based on Foata normal form. 4/133 useless extension candidates. Maximal degree in co-relation 141. Up to 25 conditions per place. [2022-12-11 21:15:06,756 INFO L137 encePairwiseOnDemand]: 95/102 looper letters, 16 selfloop transitions, 7 changer transitions 1/79 dead transitions. [2022-12-11 21:15:06,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 79 transitions, 285 flow [2022-12-11 21:15:06,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-11 21:15:06,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-11 21:15:06,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 367 transitions. [2022-12-11 21:15:06,759 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.7196078431372549 [2022-12-11 21:15:06,760 INFO L295 CegarLoopForPetriNet]: 87 programPoint places, 1 predicate places. [2022-12-11 21:15:06,760 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 79 transitions, 285 flow [2022-12-11 21:15:06,763 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 78 transitions, 281 flow [2022-12-11 21:15:06,764 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 78 transitions, 281 flow [2022-12-11 21:15:06,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 70.83333333333333) internal successors, (425), 6 states have internal predecessors, (425), 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) [2022-12-11 21:15:06,767 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-11 21:15:06,772 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-11 21:15:06,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-11 21:15:06,772 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-11 21:15:06,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-11 21:15:06,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1204615794, now seen corresponding path program 1 times [2022-12-11 21:15:06,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-11 21:15:06,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286361478] [2022-12-11 21:15:06,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-11 21:15:06,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-11 21:15:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-11 21:15:06,805 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-11 21:15:06,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-11 21:15:06,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-11 21:15:06,863 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-11 21:15:06,864 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-11 21:15:06,866 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-11 21:15:06,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-11 21:15:06,867 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-11 21:15:06,871 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-11 21:15:06,871 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-11 21:15:06,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.12 09:15:06 BasicIcfg [2022-12-11 21:15:06,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-11 21:15:06,943 INFO L158 Benchmark]: Toolchain (without parser) took 2957.99ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 162.0MB in the beginning and 91.2MB in the end (delta: 70.8MB). Peak memory consumption was 109.1MB. Max. memory is 8.0GB. [2022-12-11 21:15:06,943 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 186.6MB. Free memory is still 162.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-11 21:15:06,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.92ms. Allocated memory is still 186.6MB. Free memory was 161.5MB in the beginning and 142.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-11 21:15:06,945 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.34ms. Allocated memory is still 186.6MB. Free memory was 142.1MB in the beginning and 140.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 21:15:06,947 INFO L158 Benchmark]: Boogie Preprocessor took 34.78ms. Allocated memory is still 186.6MB. Free memory was 140.0MB in the beginning and 138.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-11 21:15:06,947 INFO L158 Benchmark]: RCFGBuilder took 476.75ms. Allocated memory is still 186.6MB. Free memory was 138.4MB in the beginning and 123.2MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-11 21:15:06,948 INFO L158 Benchmark]: TraceAbstraction took 1972.72ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 121.6MB in the beginning and 91.2MB in the end (delta: 30.4MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. [2022-12-11 21:15:06,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 186.6MB. Free memory is still 162.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 409.92ms. Allocated memory is still 186.6MB. Free memory was 161.5MB in the beginning and 142.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.34ms. Allocated memory is still 186.6MB. Free memory was 142.1MB in the beginning and 140.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.78ms. Allocated memory is still 186.6MB. Free memory was 140.0MB in the beginning and 138.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 476.75ms. Allocated memory is still 186.6MB. Free memory was 138.4MB in the beginning and 123.2MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 1972.72ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 121.6MB in the beginning and 91.2MB in the end (delta: 30.4MB). Peak memory consumption was 68.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 } } } }; VAL [__global_lock={3:0}] [L697] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}, mutex1={4:0}] [L698] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [__global_lock={3:0}, mutex1={4:0}, mutex2={5:0}] [L707] 0 pthread_t id; VAL [__global_lock={3:0}, id={7:0}, mutex1={4:0}, mutex2={5:0}] [L708] 0 int i = 0; VAL [__global_lock={3:0}, i={6:0}, id={7:0}, mutex1={4:0}, mutex2={5:0}] [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; VAL [__global_lock={3:0}, arg={6:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L702] EXPR 1 \read(*p) VAL [\read(*p)=0, __global_lock={3:0}, arg={6:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L702] 1 (*p)++ VAL [(*p)++=0, \read(*p)=0, __global_lock={3:0}, arg={6:0}, arg={6:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L711] EXPR 0 \read(i) VAL [\read(i)=1, __global_lock={3:0}, arg={6:0}, arg={6:0}, i={6:0}, id={7:0}, mutex1={4:0}, mutex2={5:0}, p={6:0}] [L711] CALL 0 __VERIFIER_assert((i) == 0) [L691] COND TRUE 0 !(cond) 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}] [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: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 118 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 118 mSDsluCounter, 200 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 160 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 185 IncrementalHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 40 mSDtfsCounter, 185 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=2, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 146 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 362 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! [2022-12-11 21:15:06,969 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...