/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 07:09:05,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 07:09:05,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 07:09:05,289 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 07:09:05,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 07:09:05,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 07:09:05,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 07:09:05,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 07:09:05,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 07:09:05,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 07:09:05,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 07:09:05,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 07:09:05,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 07:09:05,308 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 07:09:05,309 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 07:09:05,311 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 07:09:05,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 07:09:05,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 07:09:05,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 07:09:05,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 07:09:05,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 07:09:05,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 07:09:05,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 07:09:05,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 07:09:05,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 07:09:05,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 07:09:05,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 07:09:05,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 07:09:05,328 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 07:09:05,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 07:09:05,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 07:09:05,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 07:09:05,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 07:09:05,331 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 07:09:05,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 07:09:05,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 07:09:05,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 07:09:05,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 07:09:05,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 07:09:05,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 07:09:05,334 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 07:09:05,335 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-06 07:09:05,359 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 07:09:05,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 07:09:05,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 07:09:05,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 07:09:05,361 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 07:09:05,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 07:09:05,361 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 07:09:05,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 07:09:05,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 07:09:05,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 07:09:05,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 07:09:05,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 07:09:05,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 07:09:05,363 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 07:09:05,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 07:09:05,363 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 07:09:05,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 07:09:05,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 07:09:05,363 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 07:09:05,363 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 07:09:05,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 07:09:05,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:09:05,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 07:09:05,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 07:09:05,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 07:09:05,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 07:09:05,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 07:09:05,364 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 07:09:05,364 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 07:09:05,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 07:09:05,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 07:09:05,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 07:09:05,658 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 07:09:05,658 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 07:09:05,659 INFO L432 ainManager$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 [2022-12-06 07:09:06,702 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 07:09:06,924 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 07:09:06,925 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_45-escape_racing.i [2022-12-06 07:09:06,944 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eec690878/ac45c6b135284475829d07cf22b10a64/FLAGaadab8d68 [2022-12-06 07:09:06,962 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eec690878/ac45c6b135284475829d07cf22b10a64 [2022-12-06 07:09:06,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 07:09:06,965 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 07:09:06,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 07:09:06,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 07:09:06,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 07:09:06,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:09:06" (1/1) ... [2022-12-06 07:09:06,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de260ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:06, skipping insertion in model container [2022-12-06 07:09:06,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:09:06" (1/1) ... [2022-12-06 07:09:06,974 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 07:09:07,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 07:09:07,272 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] [2022-12-06 07:09:07,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:09:07,298 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 07:09:07,327 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] [2022-12-06 07:09:07,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 07:09:07,367 INFO L208 MainTranslator]: Completed translation [2022-12-06 07:09:07,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:07 WrapperNode [2022-12-06 07:09:07,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 07:09:07,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 07:09:07,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 07:09:07,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 07:09:07,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:07" (1/1) ... [2022-12-06 07:09:07,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:07" (1/1) ... [2022-12-06 07:09:07,400 INFO L138 Inliner]: procedures = 170, calls = 45, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-12-06 07:09:07,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 07:09:07,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 07:09:07,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 07:09:07,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 07:09:07,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:07" (1/1) ... [2022-12-06 07:09:07,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:07" (1/1) ... [2022-12-06 07:09:07,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:07" (1/1) ... [2022-12-06 07:09:07,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:07" (1/1) ... [2022-12-06 07:09:07,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:07" (1/1) ... [2022-12-06 07:09:07,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:07" (1/1) ... [2022-12-06 07:09:07,415 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:07" (1/1) ... [2022-12-06 07:09:07,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:07" (1/1) ... [2022-12-06 07:09:07,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 07:09:07,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 07:09:07,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 07:09:07,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 07:09:07,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:07" (1/1) ... [2022-12-06 07:09:07,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 07:09:07,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 07:09:07,447 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) [2022-12-06 07:09:07,499 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 [2022-12-06 07:09:07,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 07:09:07,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 07:09:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-06 07:09:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 07:09:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 07:09:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-06 07:09:07,526 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-06 07:09:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 07:09:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 07:09:07,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 07:09:07,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 07:09:07,527 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 07:09:07,623 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 07:09:07,625 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 07:09:07,819 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 07:09:07,824 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 07:09:07,825 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-06 07:09:07,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:09:07 BoogieIcfgContainer [2022-12-06 07:09:07,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 07:09:07,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 07:09:07,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 07:09:07,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 07:09:07,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:09:06" (1/3) ... [2022-12-06 07:09:07,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552208ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:09:07, skipping insertion in model container [2022-12-06 07:09:07,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:09:07" (2/3) ... [2022-12-06 07:09:07,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552208ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:09:07, skipping insertion in model container [2022-12-06 07:09:07,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:09:07" (3/3) ... [2022-12-06 07:09:07,831 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_45-escape_racing.i [2022-12-06 07:09:07,844 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 07:09:07,844 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 07:09:07,844 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 07:09:07,916 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-06 07:09:07,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 102 transitions, 212 flow [2022-12-06 07:09:08,000 INFO L130 PetriNetUnfolder]: 9/101 cut-off events. [2022-12-06 07:09:08,000 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 07:09:08,004 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. [2022-12-06 07:09:08,004 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 102 transitions, 212 flow [2022-12-06 07:09:08,008 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 92 transitions, 187 flow [2022-12-06 07:09:08,010 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:09:08,027 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 92 transitions, 187 flow [2022-12-06 07:09:08,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 92 transitions, 187 flow [2022-12-06 07:09:08,062 INFO L130 PetriNetUnfolder]: 9/92 cut-off events. [2022-12-06 07:09:08,063 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 07:09:08,064 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. [2022-12-06 07:09:08,066 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 92 transitions, 187 flow [2022-12-06 07:09:08,066 INFO L188 LiptonReduction]: Number of co-enabled transitions 1452 [2022-12-06 07:09:11,837 INFO L203 LiptonReduction]: Total number of compositions: 72 [2022-12-06 07:09:11,848 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 07:09:11,852 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=REPEATED_LIPTON_PN, 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;@5b2a1065, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 07:09:11,852 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-06 07:09:11,854 INFO L130 PetriNetUnfolder]: 4/16 cut-off events. [2022-12-06 07:09:11,854 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 07:09:11,855 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:09:11,855 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-06 07:09:11,855 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:09:11,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:09:11,858 INFO L85 PathProgramCache]: Analyzing trace with hash 363996222, now seen corresponding path program 1 times [2022-12-06 07:09:11,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:09:11,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235201330] [2022-12-06 07:09:11,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:09:11,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:09:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:09:12,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:09:12,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:09:12,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235201330] [2022-12-06 07:09:12,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235201330] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:09:12,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:09:12,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-06 07:09:12,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099360412] [2022-12-06 07:09:12,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:09:12,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-06 07:09:12,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:09:12,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-06 07:09:12,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-06 07:09:12,125 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 28 [2022-12-06 07:09:12,126 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 28 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-12-06 07:09:12,126 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:09:12,126 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 28 [2022-12-06 07:09:12,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:09:12,172 INFO L130 PetriNetUnfolder]: 59/155 cut-off events. [2022-12-06 07:09:12,172 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 07:09:12,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 155 events. 59/155 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 571 event pairs, 20 based on Foata normal form. 6/148 useless extension candidates. Maximal degree in co-relation 295. Up to 75 conditions per place. [2022-12-06 07:09:12,174 INFO L137 encePairwiseOnDemand]: 14/28 looper letters, 13 selfloop transitions, 2 changer transitions 13/29 dead transitions. [2022-12-06 07:09:12,174 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 25 places, 29 transitions, 115 flow [2022-12-06 07:09:12,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-06 07:09:12,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-06 07:09:12,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2022-12-06 07:09:12,182 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-12-06 07:09:12,183 INFO L175 Difference]: Start difference. First operand has 23 places, 28 transitions, 59 flow. Second operand 3 states and 49 transitions. [2022-12-06 07:09:12,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 25 places, 29 transitions, 115 flow [2022-12-06 07:09:12,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 29 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 07:09:12,186 INFO L231 Difference]: Finished difference. Result has 25 places, 14 transitions, 40 flow [2022-12-06 07:09:12,187 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=40, PETRI_PLACES=25, PETRI_TRANSITIONS=14} [2022-12-06 07:09:12,189 INFO L294 CegarLoopForPetriNet]: 23 programPoint places, 2 predicate places. [2022-12-06 07:09:12,189 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:09:12,190 INFO L89 Accepts]: Start accepts. Operand has 25 places, 14 transitions, 40 flow [2022-12-06 07:09:12,191 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:09:12,192 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:09:12,192 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 25 places, 14 transitions, 40 flow [2022-12-06 07:09:12,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 20 places, 14 transitions, 40 flow [2022-12-06 07:09:12,195 INFO L130 PetriNetUnfolder]: 1/16 cut-off events. [2022-12-06 07:09:12,195 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 07:09:12,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 16 events. 1/16 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 1 based on Foata normal form. 0/16 useless extension candidates. Maximal degree in co-relation 20. Up to 6 conditions per place. [2022-12-06 07:09:12,196 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 14 transitions, 40 flow [2022-12-06 07:09:12,196 INFO L188 LiptonReduction]: Number of co-enabled transitions 44 [2022-12-06 07:09:12,573 INFO L203 LiptonReduction]: Total number of compositions: 6 [2022-12-06 07:09:12,574 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 385 [2022-12-06 07:09:12,574 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 10 transitions, 33 flow [2022-12-06 07:09:12,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-12-06 07:09:12,575 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:09:12,575 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-06 07:09:12,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 07:09:12,575 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:09:12,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:09:12,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1601017716, now seen corresponding path program 1 times [2022-12-06 07:09:12,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:09:12,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055393761] [2022-12-06 07:09:12,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:09:12,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:09:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 07:09:12,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 07:09:12,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 07:09:12,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055393761] [2022-12-06 07:09:12,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055393761] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 07:09:12,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 07:09:12,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 07:09:12,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765353921] [2022-12-06 07:09:12,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 07:09:12,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 07:09:12,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 07:09:12,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 07:09:12,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 07:09:12,769 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 0 out of 10 [2022-12-06 07:09:12,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 10 transitions, 33 flow. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-06 07:09:12,769 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 07:09:12,769 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 0 of 10 [2022-12-06 07:09:12,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 07:09:12,794 INFO L130 PetriNetUnfolder]: 7/27 cut-off events. [2022-12-06 07:09:12,794 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 07:09:12,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 27 events. 7/27 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 53 event pairs, 3 based on Foata normal form. 3/28 useless extension candidates. Maximal degree in co-relation 61. Up to 15 conditions per place. [2022-12-06 07:09:12,794 INFO L137 encePairwiseOnDemand]: 4/10 looper letters, 6 selfloop transitions, 6 changer transitions 0/12 dead transitions. [2022-12-06 07:09:12,794 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 12 transitions, 61 flow [2022-12-06 07:09:12,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 07:09:12,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 07:09:12,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-12-06 07:09:12,795 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.375 [2022-12-06 07:09:12,795 INFO L175 Difference]: Start difference. First operand has 16 places, 10 transitions, 33 flow. Second operand 4 states and 15 transitions. [2022-12-06 07:09:12,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 12 transitions, 61 flow [2022-12-06 07:09:12,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 12 transitions, 55 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-06 07:09:12,796 INFO L231 Difference]: Finished difference. Result has 17 places, 10 transitions, 39 flow [2022-12-06 07:09:12,796 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=10, PETRI_DIFFERENCE_MINUEND_FLOW=27, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=10, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=39, PETRI_PLACES=17, PETRI_TRANSITIONS=10} [2022-12-06 07:09:12,796 INFO L294 CegarLoopForPetriNet]: 23 programPoint places, -6 predicate places. [2022-12-06 07:09:12,797 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 07:09:12,797 INFO L89 Accepts]: Start accepts. Operand has 17 places, 10 transitions, 39 flow [2022-12-06 07:09:12,797 INFO L95 Accepts]: Finished accepts. [2022-12-06 07:09:12,797 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 07:09:12,797 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 10 transitions, 39 flow [2022-12-06 07:09:12,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 17 places, 10 transitions, 39 flow [2022-12-06 07:09:12,799 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2022-12-06 07:09:12,800 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-06 07:09:12,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 13 events. 0/13 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 15 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-12-06 07:09:12,800 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 10 transitions, 39 flow [2022-12-06 07:09:12,800 INFO L188 LiptonReduction]: Number of co-enabled transitions 14 [2022-12-06 07:09:13,010 INFO L203 LiptonReduction]: Total number of compositions: 3 [2022-12-06 07:09:13,012 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 215 [2022-12-06 07:09:13,012 INFO L495 AbstractCegarLoop]: Abstraction has has 14 places, 7 transitions, 29 flow [2022-12-06 07:09:13,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-06 07:09:13,012 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 07:09:13,012 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-06 07:09:13,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-06 07:09:13,012 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 07:09:13,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 07:09:13,013 INFO L85 PathProgramCache]: Analyzing trace with hash 363999016, now seen corresponding path program 1 times [2022-12-06 07:09:13,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 07:09:13,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60805409] [2022-12-06 07:09:13,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 07:09:13,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 07:09:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 07:09:13,042 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-06 07:09:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-06 07:09:13,072 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-06 07:09:13,073 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-06 07:09:13,073 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-06 07:09:13,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-12-06 07:09:13,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 07:09:13,080 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-06 07:09:13,084 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-06 07:09:13,084 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-06 07:09:13,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 07:09:13 BasicIcfg [2022-12-06 07:09:13,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-06 07:09:13,107 INFO L158 Benchmark]: Toolchain (without parser) took 6142.47ms. Allocated memory was 207.6MB in the beginning and 277.9MB in the end (delta: 70.3MB). Free memory was 181.0MB in the beginning and 102.3MB in the end (delta: 78.7MB). Peak memory consumption was 149.8MB. Max. memory is 8.0GB. [2022-12-06 07:09:13,107 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 207.6MB. Free memory is still 183.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 07:09:13,112 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.77ms. Allocated memory is still 207.6MB. Free memory was 181.0MB in the beginning and 161.1MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-12-06 07:09:13,112 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.67ms. Allocated memory is still 207.6MB. Free memory was 161.1MB in the beginning and 159.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 07:09:13,114 INFO L158 Benchmark]: Boogie Preprocessor took 16.46ms. Allocated memory is still 207.6MB. Free memory was 159.0MB in the beginning and 157.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 07:09:13,116 INFO L158 Benchmark]: RCFGBuilder took 407.99ms. Allocated memory is still 207.6MB. Free memory was 157.5MB in the beginning and 143.2MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 07:09:13,116 INFO L158 Benchmark]: TraceAbstraction took 5279.44ms. Allocated memory was 207.6MB in the beginning and 277.9MB in the end (delta: 70.3MB). Free memory was 142.6MB in the beginning and 102.3MB in the end (delta: 40.3MB). Peak memory consumption was 112.1MB. Max. memory is 8.0GB. [2022-12-06 07:09:13,117 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 207.6MB. Free memory is still 183.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 402.77ms. Allocated memory is still 207.6MB. Free memory was 181.0MB in the beginning and 161.1MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.67ms. Allocated memory is still 207.6MB. Free memory was 161.1MB in the beginning and 159.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.46ms. Allocated memory is still 207.6MB. Free memory was 159.0MB in the beginning and 157.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 407.99ms. Allocated memory is still 207.6MB. Free memory was 157.5MB in the beginning and 143.2MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 5279.44ms. Allocated memory was 207.6MB in the beginning and 277.9MB in the end (delta: 70.3MB). Free memory was 142.6MB in the beginning and 102.3MB in the end (delta: 40.3MB). Peak memory consumption was 112.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 87 PlacesBefore, 23 PlacesAfterwards, 92 TransitionsBefore, 28 TransitionsAfterwards, 1452 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 35 TrivialYvCompositions, 30 ConcurrentYvCompositions, 0 ChoiceCompositions, 72 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1307, independent: 1232, independent conditional: 1232, independent unconditional: 0, dependent: 75, dependent conditional: 75, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1307, independent: 1232, independent conditional: 0, independent unconditional: 1232, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1307, independent: 1232, independent conditional: 0, independent unconditional: 1232, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1307, independent: 1232, independent conditional: 0, independent unconditional: 1232, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 996, independent: 962, independent conditional: 0, independent unconditional: 962, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 996, independent: 917, independent conditional: 0, independent unconditional: 917, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 79, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 129, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1307, independent: 270, independent conditional: 0, independent unconditional: 270, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 996, unknown conditional: 0, unknown unconditional: 996] , Statistics on independence cache: Total cache size (in pairs): 1512, Positive cache size: 1478, Positive conditional cache size: 0, Positive unconditional cache size: 1478, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4s, 20 PlacesBefore, 16 PlacesAfterwards, 14 TransitionsBefore, 10 TransitionsAfterwards, 44 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 55, independent: 32, independent conditional: 32, independent unconditional: 0, dependent: 23, dependent conditional: 23, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 55, independent: 32, independent conditional: 13, independent unconditional: 19, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 55, independent: 32, independent conditional: 13, independent unconditional: 19, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 55, independent: 32, independent conditional: 13, independent unconditional: 19, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 36, independent: 25, independent conditional: 9, independent unconditional: 16, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 36, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 30, independent: 19, independent conditional: 7, independent unconditional: 12, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 46, independent: 33, independent conditional: 18, independent unconditional: 14, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 55, independent: 7, independent conditional: 4, independent unconditional: 3, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 36, unknown conditional: 9, unknown unconditional: 27] , Statistics on independence cache: Total cache size (in pairs): 40, Positive cache size: 29, Positive conditional cache size: 9, Positive unconditional cache size: 20, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 17 PlacesBefore, 14 PlacesAfterwards, 10 TransitionsBefore, 7 TransitionsAfterwards, 14 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 11, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 11, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 11, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16, independent: 16, independent conditional: 16, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 38, Positive conditional cache size: 16, Positive unconditional cache size: 22, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 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={7:0}, i={7:0}, id={6:0}, 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={7:0}, arg={7:0}, cond=0, mutex1={4:0}, mutex2={5:0}, p={7:0}] - 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: 5.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 52 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 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! [2022-12-06 07:09:13,134 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...