/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:43:42,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:43:42,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:43:42,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:43:42,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:43:42,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:43:42,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:43:42,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:43:42,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:43:42,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:43:42,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:43:42,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:43:42,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:43:42,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:43:42,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:43:42,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:43:42,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:43:42,560 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:43:42,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:43:42,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:43:42,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:43:42,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:43:42,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:43:42,571 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:43:42,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:43:42,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:43:42,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:43:42,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:43:42,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:43:42,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:43:42,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:43:42,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:43:42,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:43:42,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:43:42,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:43:42,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:43:42,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:43:42,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:43:42,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:43:42,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:43:42,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:43:42,591 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 07:43:42,626 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:43:42,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:43:42,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:43:42,627 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:43:42,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:43:42,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:43:42,628 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:43:42,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:43:42,629 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:43:42,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:43:42,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:43:42,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:43:42,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:43:42,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:43:42,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:43:42,630 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:43:42,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:43:42,630 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:43:42,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:43:42,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:43:42,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:43:42,631 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:43:42,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:43:42,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:43:42,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:43:42,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:43:42,631 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:43:42,631 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:43:42,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:43:42,632 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:43:42,632 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:43:42,632 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:43:42,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:43:42,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:43:42,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:43:42,895 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:43:42,895 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:43:42,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2023-01-28 07:43:44,039 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:43:44,269 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:43:44,269 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i [2023-01-28 07:43:44,293 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4be128ee/e5f51da75dfe4e66aded669f89a45641/FLAGacf9b722b [2023-01-28 07:43:44,308 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4be128ee/e5f51da75dfe4e66aded669f89a45641 [2023-01-28 07:43:44,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:43:44,311 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:43:44,312 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:43:44,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:43:44,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:43:44,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:43:44" (1/1) ... [2023-01-28 07:43:44,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eb409ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:44, skipping insertion in model container [2023-01-28 07:43:44,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:43:44" (1/1) ... [2023-01-28 07:43:44,322 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:43:44,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:43:44,542 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2023-01-28 07:43:44,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:43:44,926 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:43:44,937 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_67-pthread_cond_wait_true.i[1094,1107] [2023-01-28 07:43:45,001 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:43:45,066 WARN L667 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:43:45,072 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:43:45,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:45 WrapperNode [2023-01-28 07:43:45,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:43:45,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:43:45,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:43:45,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:43:45,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:45" (1/1) ... [2023-01-28 07:43:45,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:45" (1/1) ... [2023-01-28 07:43:45,125 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 79 [2023-01-28 07:43:45,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:43:45,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:43:45,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:43:45,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:43:45,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:45" (1/1) ... [2023-01-28 07:43:45,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:45" (1/1) ... [2023-01-28 07:43:45,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:45" (1/1) ... [2023-01-28 07:43:45,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:45" (1/1) ... [2023-01-28 07:43:45,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:45" (1/1) ... [2023-01-28 07:43:45,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:45" (1/1) ... [2023-01-28 07:43:45,151 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:45" (1/1) ... [2023-01-28 07:43:45,152 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:45" (1/1) ... [2023-01-28 07:43:45,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:43:45,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:43:45,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:43:45,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:43:45,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:45" (1/1) ... [2023-01-28 07:43:45,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:43:45,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:43:45,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-28 07:43:45,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-28 07:43:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-01-28 07:43:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2023-01-28 07:43:45,227 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2023-01-28 07:43:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2023-01-28 07:43:45,227 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2023-01-28 07:43:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:43:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:43:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:43:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:43:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 07:43:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:43:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:43:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:43:45,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:43:45,229 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 07:43:45,515 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:43:45,517 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:43:45,631 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:43:45,637 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:43:45,637 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 07:43:45,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:43:45 BoogieIcfgContainer [2023-01-28 07:43:45,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:43:45,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:43:45,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:43:45,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:43:45,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:43:44" (1/3) ... [2023-01-28 07:43:45,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38707c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:43:45, skipping insertion in model container [2023-01-28 07:43:45,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:43:45" (2/3) ... [2023-01-28 07:43:45,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38707c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:43:45, skipping insertion in model container [2023-01-28 07:43:45,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:43:45" (3/3) ... [2023-01-28 07:43:45,646 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_true.i [2023-01-28 07:43:45,659 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:43:45,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 07:43:45,660 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:43:45,712 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 07:43:45,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 94 places, 88 transitions, 192 flow [2023-01-28 07:43:45,782 INFO L130 PetriNetUnfolder]: 1/86 cut-off events. [2023-01-28 07:43:45,783 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:43:45,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 86 events. 1/86 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 55 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2023-01-28 07:43:45,786 INFO L82 GeneralOperation]: Start removeDead. Operand has 94 places, 88 transitions, 192 flow [2023-01-28 07:43:45,789 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 66 transitions, 138 flow [2023-01-28 07:43:45,792 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:43:45,800 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 66 transitions, 138 flow [2023-01-28 07:43:45,802 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 66 transitions, 138 flow [2023-01-28 07:43:45,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 66 transitions, 138 flow [2023-01-28 07:43:45,819 INFO L130 PetriNetUnfolder]: 0/66 cut-off events. [2023-01-28 07:43:45,819 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:43:45,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 66 events. 0/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-01-28 07:43:45,820 INFO L119 LiptonReduction]: Number of co-enabled transitions 474 [2023-01-28 07:43:48,752 INFO L134 LiptonReduction]: Checked pairs total: 956 [2023-01-28 07:43:48,753 INFO L136 LiptonReduction]: Total number of compositions: 53 [2023-01-28 07:43:48,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:43:48,771 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;@739db7bf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:43:48,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-28 07:43:48,778 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2023-01-28 07:43:48,778 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:43:48,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:43:48,779 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:43:48,781 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 07:43:48,785 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:43:48,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1675552830, now seen corresponding path program 1 times [2023-01-28 07:43:48,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:43:48,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883067506] [2023-01-28 07:43:48,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:43:48,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:43:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:43:49,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:43:49,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:43:49,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883067506] [2023-01-28 07:43:49,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883067506] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:43:49,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:43:49,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:43:49,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320791160] [2023-01-28 07:43:49,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:43:49,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:43:49,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:43:49,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:43:49,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:43:49,216 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 141 [2023-01-28 07:43:49,217 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 13 transitions, 32 flow. Second operand has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:49,217 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:43:49,218 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 141 [2023-01-28 07:43:49,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:43:49,286 INFO L130 PetriNetUnfolder]: 47/110 cut-off events. [2023-01-28 07:43:49,287 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 07:43:49,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 224 conditions, 110 events. 47/110 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 377 event pairs, 23 based on Foata normal form. 10/120 useless extension candidates. Maximal degree in co-relation 214. Up to 61 conditions per place. [2023-01-28 07:43:49,290 INFO L137 encePairwiseOnDemand]: 138/141 looper letters, 15 selfloop transitions, 2 changer transitions 2/20 dead transitions. [2023-01-28 07:43:49,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 20 transitions, 87 flow [2023-01-28 07:43:49,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:43:49,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:43:49,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-01-28 07:43:49,302 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5933806146572104 [2023-01-28 07:43:49,302 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-01-28 07:43:49,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-01-28 07:43:49,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:43:49,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-01-28 07:43:49,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:49,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:49,314 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:49,315 INFO L175 Difference]: Start difference. First operand has 20 places, 13 transitions, 32 flow. Second operand 3 states and 251 transitions. [2023-01-28 07:43:49,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 20 transitions, 87 flow [2023-01-28 07:43:49,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 20 transitions, 84 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:43:49,319 INFO L231 Difference]: Finished difference. Result has 21 places, 13 transitions, 38 flow [2023-01-28 07:43:49,320 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=30, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=38, PETRI_PLACES=21, PETRI_TRANSITIONS=13} [2023-01-28 07:43:49,323 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 1 predicate places. [2023-01-28 07:43:49,324 INFO L495 AbstractCegarLoop]: Abstraction has has 21 places, 13 transitions, 38 flow [2023-01-28 07:43:49,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.0) internal successors, (237), 3 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:49,324 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:43:49,324 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:43:49,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:43:49,325 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 07:43:49,325 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:43:49,325 INFO L85 PathProgramCache]: Analyzing trace with hash -485842887, now seen corresponding path program 1 times [2023-01-28 07:43:49,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:43:49,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395344685] [2023-01-28 07:43:49,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:43:49,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:43:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:43:49,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:43:49,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:43:49,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395344685] [2023-01-28 07:43:49,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395344685] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:43:49,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:43:49,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:43:49,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041907095] [2023-01-28 07:43:49,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:43:49,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:43:49,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:43:49,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:43:49,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:43:49,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 141 [2023-01-28 07:43:49,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 21 places, 13 transitions, 38 flow. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:49,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:43:49,532 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 141 [2023-01-28 07:43:49,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:43:49,576 INFO L130 PetriNetUnfolder]: 18/51 cut-off events. [2023-01-28 07:43:49,577 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2023-01-28 07:43:49,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 51 events. 18/51 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 111 event pairs, 4 based on Foata normal form. 12/63 useless extension candidates. Maximal degree in co-relation 118. Up to 36 conditions per place. [2023-01-28 07:43:49,578 INFO L137 encePairwiseOnDemand]: 136/141 looper letters, 11 selfloop transitions, 5 changer transitions 0/16 dead transitions. [2023-01-28 07:43:49,578 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 16 transitions, 78 flow [2023-01-28 07:43:49,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:43:49,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:43:49,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 229 transitions. [2023-01-28 07:43:49,583 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.541371158392435 [2023-01-28 07:43:49,583 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 229 transitions. [2023-01-28 07:43:49,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 229 transitions. [2023-01-28 07:43:49,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:43:49,584 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 229 transitions. [2023-01-28 07:43:49,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:49,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:49,588 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 141.0) internal successors, (564), 4 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:49,588 INFO L175 Difference]: Start difference. First operand has 21 places, 13 transitions, 38 flow. Second operand 3 states and 229 transitions. [2023-01-28 07:43:49,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 16 transitions, 78 flow [2023-01-28 07:43:49,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 16 transitions, 76 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:43:49,589 INFO L231 Difference]: Finished difference. Result has 22 places, 13 transitions, 46 flow [2023-01-28 07:43:49,589 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=22, PETRI_TRANSITIONS=13} [2023-01-28 07:43:49,590 INFO L281 CegarLoopForPetriNet]: 20 programPoint places, 2 predicate places. [2023-01-28 07:43:49,590 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 13 transitions, 46 flow [2023-01-28 07:43:49,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:43:49,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:43:49,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:43:49,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:43:49,592 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting f1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2023-01-28 07:43:49,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:43:49,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1785060460, now seen corresponding path program 1 times [2023-01-28 07:43:49,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:43:49,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517348855] [2023-01-28 07:43:49,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:43:49,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:43:49,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:43:49,638 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 07:43:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:43:49,690 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 07:43:49,690 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 07:43:49,691 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-28 07:43:49,692 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-28 07:43:49,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-28 07:43:49,693 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-01-28 07:43:49,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 07:43:49,693 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-01-28 07:43:49,700 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:43:49,700 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:43:49,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:43:49 BasicIcfg [2023-01-28 07:43:49,744 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:43:49,745 INFO L158 Benchmark]: Toolchain (without parser) took 5433.54ms. Allocated memory was 358.6MB in the beginning and 434.1MB in the end (delta: 75.5MB). Free memory was 306.0MB in the beginning and 306.1MB in the end (delta: -163.8kB). Peak memory consumption was 78.1MB. Max. memory is 16.0GB. [2023-01-28 07:43:49,745 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 255.9MB. Free memory was 215.0MB in the beginning and 214.9MB in the end (delta: 153.8kB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:43:49,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 761.38ms. Allocated memory is still 358.6MB. Free memory was 305.7MB in the beginning and 312.8MB in the end (delta: -7.1MB). Peak memory consumption was 25.7MB. Max. memory is 16.0GB. [2023-01-28 07:43:49,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.36ms. Allocated memory is still 358.6MB. Free memory was 312.8MB in the beginning and 310.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:43:49,750 INFO L158 Benchmark]: Boogie Preprocessor took 31.04ms. Allocated memory is still 358.6MB. Free memory was 310.1MB in the beginning and 307.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:43:49,750 INFO L158 Benchmark]: RCFGBuilder took 481.65ms. Allocated memory is still 358.6MB. Free memory was 307.5MB in the beginning and 288.2MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 07:43:49,751 INFO L158 Benchmark]: TraceAbstraction took 4103.23ms. Allocated memory was 358.6MB in the beginning and 434.1MB in the end (delta: 75.5MB). Free memory was 287.7MB in the beginning and 306.1MB in the end (delta: -18.5MB). Peak memory consumption was 56.6MB. Max. memory is 16.0GB. [2023-01-28 07:43:49,756 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 255.9MB. Free memory was 215.0MB in the beginning and 214.9MB in the end (delta: 153.8kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 761.38ms. Allocated memory is still 358.6MB. Free memory was 305.7MB in the beginning and 312.8MB in the end (delta: -7.1MB). Peak memory consumption was 25.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 51.36ms. Allocated memory is still 358.6MB. Free memory was 312.8MB in the beginning and 310.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 31.04ms. Allocated memory is still 358.6MB. Free memory was 310.1MB in the beginning and 307.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 481.65ms. Allocated memory is still 358.6MB. Free memory was 307.5MB in the beginning and 288.2MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 4103.23ms. Allocated memory was 358.6MB in the beginning and 434.1MB in the end (delta: 75.5MB). Free memory was 287.7MB in the beginning and 306.1MB in the end (delta: -18.5MB). Peak memory consumption was 56.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 73 PlacesBefore, 20 PlacesAfterwards, 66 TransitionsBefore, 13 TransitionsAfterwards, 474 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 53 TotalNumberOfCompositions, 956 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 561, independent: 471, independent conditional: 0, independent unconditional: 471, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 254, independent: 239, independent conditional: 0, independent unconditional: 239, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 561, independent: 232, independent conditional: 0, independent unconditional: 232, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 254, unknown conditional: 0, unknown unconditional: 254] , Statistics on independence cache: Total cache size (in pairs): 25, Positive cache size: 19, Positive conditional cache size: 0, Positive unconditional cache size: 19, Negative cache size: 6, Negative conditional cache size: 0, Negative unconditional cache size: 6, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1152:1151}, argv={1152:1151}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=0, t1={5:0}, t2={6:0}] [L1356] 1 g = 1 VAL [cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1150, argc=1150, argv={1152:1151}, argv={1152:1151}, cond={4:0}, g=1, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=1, ptr={0:0}, t1={5:0}, t2={6:0}] [L1366] 2 g = 0 VAL [cond={4:0}, g=0, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1369] 2 return ((void *)0); [L1358] CALL 1 __VERIFIER_assert(g == 1) [L19] COND TRUE 1 !(cond) [L19] 1 reach_error() VAL [\old(cond)=0, \result={0:0}, cond=0, cond={4:0}, g=0, mut={3:0}, ptr={0:0}, ptr={0:0}] - UnprovableResult [Line: 1375]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1377]: 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 5 procedures, 118 locations, 4 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: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-01-28 07:43:49,772 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...