/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread/lazy01.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-05 22:38:41,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 22:38:41,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 22:38:41,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 22:38:41,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 22:38:41,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 22:38:41,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 22:38:41,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 22:38:41,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 22:38:41,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 22:38:41,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 22:38:41,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 22:38:41,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 22:38:41,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 22:38:41,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 22:38:41,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 22:38:41,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 22:38:41,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 22:38:41,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 22:38:41,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 22:38:41,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 22:38:41,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 22:38:41,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 22:38:41,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 22:38:41,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 22:38:41,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 22:38:41,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 22:38:41,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 22:38:41,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 22:38:41,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-05 22:38:41,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-05 22:38:41,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-05 22:38:41,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-05 22:38:41,625 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-05 22:38:41,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-05 22:38:41,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-05 22:38:41,627 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-05 22:38:41,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-05 22:38:41,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 22:38:41,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 22:38:41,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 22:38:41,633 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-RepeatedSemanticLbe.epf [2022-12-05 22:38:41,647 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 22:38:41,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 22:38:41,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 22:38:41,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 22:38:41,651 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 22:38:41,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 22:38:41,652 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 22:38:41,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 22:38:41,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 22:38:41,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 22:38:41,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 22:38:41,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 22:38:41,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 22:38:41,653 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 22:38:41,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 22:38:41,653 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 22:38:41,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 22:38:41,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 22:38:41,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 22:38:41,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 22:38:41,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 22:38:41,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 22:38:41,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 22:38:41,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 22:38:41,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 22:38:41,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 22:38:41,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 22:38:41,655 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-05 22:38:41,655 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 22:38:41,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 22:38:41,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 22:38:41,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 22:38:41,901 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 22:38:41,901 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 22:38:41,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/lazy01.i [2022-12-05 22:38:42,920 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 22:38:43,150 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 22:38:43,150 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i [2022-12-05 22:38:43,159 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022c96e7d/754d4d3506834de3a6d47387e15bb6bc/FLAG698827f23 [2022-12-05 22:38:43,170 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/022c96e7d/754d4d3506834de3a6d47387e15bb6bc [2022-12-05 22:38:43,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 22:38:43,173 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 22:38:43,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 22:38:43,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 22:38:43,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 22:38:43,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:38:43" (1/1) ... [2022-12-05 22:38:43,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64050889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:38:43, skipping insertion in model container [2022-12-05 22:38:43,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:38:43" (1/1) ... [2022-12-05 22:38:43,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 22:38:43,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 22:38:43,472 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i[31042,31055] [2022-12-05 22:38:43,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 22:38:43,491 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 22:38:43,524 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/lazy01.i[31042,31055] [2022-12-05 22:38:43,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 22:38:43,563 INFO L208 MainTranslator]: Completed translation [2022-12-05 22:38:43,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:38:43 WrapperNode [2022-12-05 22:38:43,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 22:38:43,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 22:38:43,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 22:38:43,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 22:38:43,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:38:43" (1/1) ... [2022-12-05 22:38:43,594 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:38:43" (1/1) ... [2022-12-05 22:38:43,611 INFO L138 Inliner]: procedures = 169, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 62 [2022-12-05 22:38:43,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 22:38:43,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 22:38:43,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 22:38:43,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 22:38:43,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:38:43" (1/1) ... [2022-12-05 22:38:43,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:38:43" (1/1) ... [2022-12-05 22:38:43,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:38:43" (1/1) ... [2022-12-05 22:38:43,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:38:43" (1/1) ... [2022-12-05 22:38:43,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:38:43" (1/1) ... [2022-12-05 22:38:43,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:38:43" (1/1) ... [2022-12-05 22:38:43,636 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:38:43" (1/1) ... [2022-12-05 22:38:43,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:38:43" (1/1) ... [2022-12-05 22:38:43,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 22:38:43,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 22:38:43,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 22:38:43,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 22:38:43,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:38:43" (1/1) ... [2022-12-05 22:38:43,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 22:38:43,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 22:38:43,680 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) [2022-12-05 22:38:43,714 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 [2022-12-05 22:38:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 22:38:43,726 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-05 22:38:43,727 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-05 22:38:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-05 22:38:43,727 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-05 22:38:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-05 22:38:43,727 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-05 22:38:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 22:38:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 22:38:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 22:38:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 22:38:43,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 22:38:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 22:38:43,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 22:38:43,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 22:38:43,728 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 22:38:43,857 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 22:38:43,858 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 22:38:44,036 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 22:38:44,043 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 22:38:44,043 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-05 22:38:44,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:38:44 BoogieIcfgContainer [2022-12-05 22:38:44,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 22:38:44,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 22:38:44,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 22:38:44,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 22:38:44,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 10:38:43" (1/3) ... [2022-12-05 22:38:44,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c66aad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 10:38:44, skipping insertion in model container [2022-12-05 22:38:44,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:38:43" (2/3) ... [2022-12-05 22:38:44,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c66aad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 10:38:44, skipping insertion in model container [2022-12-05 22:38:44,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:38:44" (3/3) ... [2022-12-05 22:38:44,056 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01.i [2022-12-05 22:38:44,074 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 22:38:44,074 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-05 22:38:44,074 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 22:38:44,125 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-05 22:38:44,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 87 transitions, 198 flow [2022-12-05 22:38:44,182 INFO L130 PetriNetUnfolder]: 1/84 cut-off events. [2022-12-05 22:38:44,182 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 22:38:44,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 84 events. 1/84 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/82 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2022-12-05 22:38:44,186 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 87 transitions, 198 flow [2022-12-05 22:38:44,189 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 67 transitions, 149 flow [2022-12-05 22:38:44,190 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:38:44,205 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 67 transitions, 149 flow [2022-12-05 22:38:44,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 77 places, 67 transitions, 149 flow [2022-12-05 22:38:44,224 INFO L130 PetriNetUnfolder]: 0/67 cut-off events. [2022-12-05 22:38:44,225 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-05 22:38:44,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 67 events. 0/67 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 50 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-05 22:38:44,227 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 67 transitions, 149 flow [2022-12-05 22:38:44,227 INFO L188 LiptonReduction]: Number of co-enabled transitions 814 [2022-12-05 22:38:46,664 INFO L203 LiptonReduction]: Total number of compositions: 47 [2022-12-05 22:38:46,676 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 22:38:46,685 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;@7843fb45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 22:38:46,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-12-05 22:38:46,695 INFO L130 PetriNetUnfolder]: 0/17 cut-off events. [2022-12-05 22:38:46,695 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-05 22:38:46,695 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:38:46,696 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:38:46,696 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 22:38:46,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:38:46,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1467362048, now seen corresponding path program 1 times [2022-12-05 22:38:46,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:38:46,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296804173] [2022-12-05 22:38:46,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:38:46,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:38:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:38:46,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:38:46,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:38:46,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296804173] [2022-12-05 22:38:46,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296804173] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:38:46,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:38:46,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-05 22:38:46,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676995994] [2022-12-05 22:38:46,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:38:46,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 22:38:46,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:38:46,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 22:38:46,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 22:38:46,972 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 22 [2022-12-05 22:38:46,973 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 59 flow. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-12-05 22:38:46,973 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:38:46,973 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 22 [2022-12-05 22:38:46,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:38:47,047 INFO L130 PetriNetUnfolder]: 285/477 cut-off events. [2022-12-05 22:38:47,047 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-12-05 22:38:47,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1023 conditions, 477 events. 285/477 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1695 event pairs, 103 based on Foata normal form. 12/489 useless extension candidates. Maximal degree in co-relation 861. Up to 385 conditions per place. [2022-12-05 22:38:47,052 INFO L137 encePairwiseOnDemand]: 18/22 looper letters, 28 selfloop transitions, 3 changer transitions 0/33 dead transitions. [2022-12-05 22:38:47,052 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 33 transitions, 149 flow [2022-12-05 22:38:47,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 22:38:47,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 22:38:47,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 38 transitions. [2022-12-05 22:38:47,075 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2022-12-05 22:38:47,076 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 59 flow. Second operand 3 states and 38 transitions. [2022-12-05 22:38:47,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 33 transitions, 149 flow [2022-12-05 22:38:47,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 33 transitions, 137 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-05 22:38:47,082 INFO L231 Difference]: Finished difference. Result has 30 places, 24 transitions, 69 flow [2022-12-05 22:38:47,084 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=30, PETRI_TRANSITIONS=24} [2022-12-05 22:38:47,087 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2022-12-05 22:38:47,087 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 22:38:47,087 INFO L89 Accepts]: Start accepts. Operand has 30 places, 24 transitions, 69 flow [2022-12-05 22:38:47,089 INFO L95 Accepts]: Finished accepts. [2022-12-05 22:38:47,089 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:38:47,090 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 24 transitions, 69 flow [2022-12-05 22:38:47,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 24 transitions, 69 flow [2022-12-05 22:38:47,097 INFO L130 PetriNetUnfolder]: 3/32 cut-off events. [2022-12-05 22:38:47,097 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 22:38:47,099 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 32 events. 3/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 59 event pairs, 1 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 37. Up to 10 conditions per place. [2022-12-05 22:38:47,100 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 24 transitions, 69 flow [2022-12-05 22:38:47,101 INFO L188 LiptonReduction]: Number of co-enabled transitions 196 [2022-12-05 22:38:47,112 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 22:38:47,114 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 27 [2022-12-05 22:38:47,116 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 24 transitions, 69 flow [2022-12-05 22:38:47,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2022-12-05 22:38:47,117 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:38:47,117 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:38:47,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 22:38:47,118 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 22:38:47,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:38:47,118 INFO L85 PathProgramCache]: Analyzing trace with hash 946169125, now seen corresponding path program 1 times [2022-12-05 22:38:47,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:38:47,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997274483] [2022-12-05 22:38:47,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:38:47,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:38:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:38:47,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:38:47,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:38:47,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997274483] [2022-12-05 22:38:47,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997274483] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:38:47,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:38:47,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 22:38:47,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855732877] [2022-12-05 22:38:47,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:38:47,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 22:38:47,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:38:47,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 22:38:47,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 22:38:47,197 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 22 [2022-12-05 22:38:47,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 69 flow. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-12-05 22:38:47,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:38:47,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 22 [2022-12-05 22:38:47,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:38:47,246 INFO L130 PetriNetUnfolder]: 68/174 cut-off events. [2022-12-05 22:38:47,246 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-05 22:38:47,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 411 conditions, 174 events. 68/174 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 656 event pairs, 13 based on Foata normal form. 52/226 useless extension candidates. Maximal degree in co-relation 185. Up to 117 conditions per place. [2022-12-05 22:38:47,247 INFO L137 encePairwiseOnDemand]: 17/22 looper letters, 24 selfloop transitions, 5 changer transitions 0/33 dead transitions. [2022-12-05 22:38:47,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 33 transitions, 150 flow [2022-12-05 22:38:47,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 22:38:47,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 22:38:47,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2022-12-05 22:38:47,248 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2022-12-05 22:38:47,249 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 69 flow. Second operand 3 states and 40 transitions. [2022-12-05 22:38:47,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 33 transitions, 150 flow [2022-12-05 22:38:47,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 33 transitions, 147 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-05 22:38:47,250 INFO L231 Difference]: Finished difference. Result has 31 places, 24 transitions, 76 flow [2022-12-05 22:38:47,250 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=22, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=31, PETRI_TRANSITIONS=24} [2022-12-05 22:38:47,250 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2022-12-05 22:38:47,250 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 22:38:47,250 INFO L89 Accepts]: Start accepts. Operand has 31 places, 24 transitions, 76 flow [2022-12-05 22:38:47,251 INFO L95 Accepts]: Finished accepts. [2022-12-05 22:38:47,251 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:38:47,251 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 24 transitions, 76 flow [2022-12-05 22:38:47,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 31 places, 24 transitions, 76 flow [2022-12-05 22:38:47,254 INFO L130 PetriNetUnfolder]: 1/34 cut-off events. [2022-12-05 22:38:47,254 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 22:38:47,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 34 events. 1/34 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 81 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 47. Up to 8 conditions per place. [2022-12-05 22:38:47,254 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 24 transitions, 76 flow [2022-12-05 22:38:47,254 INFO L188 LiptonReduction]: Number of co-enabled transitions 146 [2022-12-05 22:38:47,561 INFO L203 LiptonReduction]: Total number of compositions: 6 [2022-12-05 22:38:47,562 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 312 [2022-12-05 22:38:47,562 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 18 transitions, 64 flow [2022-12-05 22:38:47,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-12-05 22:38:47,562 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:38:47,562 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:38:47,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 22:38:47,562 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 22:38:47,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:38:47,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1467768690, now seen corresponding path program 1 times [2022-12-05 22:38:47,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:38:47,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663940706] [2022-12-05 22:38:47,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:38:47,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:38:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 22:38:47,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 22:38:47,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 22:38:47,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663940706] [2022-12-05 22:38:47,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663940706] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 22:38:47,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 22:38:47,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-05 22:38:47,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363135620] [2022-12-05 22:38:47,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 22:38:47,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-05 22:38:47,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 22:38:47,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-05 22:38:47,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-05 22:38:47,613 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 18 [2022-12-05 22:38:47,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 18 transitions, 64 flow. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-12-05 22:38:47,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 22:38:47,614 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 18 [2022-12-05 22:38:47,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 22:38:47,647 INFO L130 PetriNetUnfolder]: 22/57 cut-off events. [2022-12-05 22:38:47,648 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2022-12-05 22:38:47,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 180 conditions, 57 events. 22/57 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 125 event pairs, 2 based on Foata normal form. 6/63 useless extension candidates. Maximal degree in co-relation 96. Up to 29 conditions per place. [2022-12-05 22:38:47,648 INFO L137 encePairwiseOnDemand]: 12/18 looper letters, 21 selfloop transitions, 5 changer transitions 0/28 dead transitions. [2022-12-05 22:38:47,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 28 transitions, 142 flow [2022-12-05 22:38:47,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-05 22:38:47,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-05 22:38:47,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 35 transitions. [2022-12-05 22:38:47,649 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111 [2022-12-05 22:38:47,649 INFO L175 Difference]: Start difference. First operand has 25 places, 18 transitions, 64 flow. Second operand 4 states and 35 transitions. [2022-12-05 22:38:47,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 28 transitions, 142 flow [2022-12-05 22:38:47,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 138 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-12-05 22:38:47,650 INFO L231 Difference]: Finished difference. Result has 29 places, 18 transitions, 76 flow [2022-12-05 22:38:47,650 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=18, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=76, PETRI_PLACES=29, PETRI_TRANSITIONS=18} [2022-12-05 22:38:47,651 INFO L294 CegarLoopForPetriNet]: 32 programPoint places, -3 predicate places. [2022-12-05 22:38:47,651 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-05 22:38:47,651 INFO L89 Accepts]: Start accepts. Operand has 29 places, 18 transitions, 76 flow [2022-12-05 22:38:47,652 INFO L95 Accepts]: Finished accepts. [2022-12-05 22:38:47,652 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-05 22:38:47,652 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 18 transitions, 76 flow [2022-12-05 22:38:47,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 18 transitions, 76 flow [2022-12-05 22:38:47,654 INFO L130 PetriNetUnfolder]: 1/18 cut-off events. [2022-12-05 22:38:47,654 INFO L131 PetriNetUnfolder]: For 17/25 co-relation queries the response was YES. [2022-12-05 22:38:47,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44 conditions, 18 events. 1/18 cut-off events. For 17/25 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 16 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 27. Up to 6 conditions per place. [2022-12-05 22:38:47,654 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 18 transitions, 76 flow [2022-12-05 22:38:47,654 INFO L188 LiptonReduction]: Number of co-enabled transitions 68 [2022-12-05 22:38:47,655 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-05 22:38:47,656 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 5 [2022-12-05 22:38:47,656 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 18 transitions, 76 flow [2022-12-05 22:38:47,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-12-05 22:38:47,656 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 22:38:47,656 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 22:38:47,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 22:38:47,656 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread3Err0ASSERT_VIOLATIONERROR_FUNCTION === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2022-12-05 22:38:47,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 22:38:47,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1756382312, now seen corresponding path program 1 times [2022-12-05 22:38:47,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 22:38:47,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783182463] [2022-12-05 22:38:47,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 22:38:47,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 22:38:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 22:38:47,678 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-05 22:38:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-05 22:38:47,701 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-05 22:38:47,701 INFO L373 BasicCegarLoop]: Counterexample is feasible [2022-12-05 22:38:47,702 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread3Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-12-05 22:38:47,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-12-05 22:38:47,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-12-05 22:38:47,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2022-12-05 22:38:47,703 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-12-05 22:38:47,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 22:38:47,704 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-05 22:38:47,707 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 22:38:47,707 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 22:38:47,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 10:38:47 BasicIcfg [2022-12-05 22:38:47,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 22:38:47,723 INFO L158 Benchmark]: Toolchain (without parser) took 4550.06ms. Allocated memory was 213.9MB in the beginning and 318.8MB in the end (delta: 104.9MB). Free memory was 190.2MB in the beginning and 159.7MB in the end (delta: 30.5MB). Peak memory consumption was 135.4MB. Max. memory is 8.0GB. [2022-12-05 22:38:47,723 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 213.9MB. Free memory was 191.0MB in the beginning and 191.0MB in the end (delta: 64.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 22:38:47,724 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.37ms. Allocated memory is still 213.9MB. Free memory was 189.7MB in the beginning and 170.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-05 22:38:47,724 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.80ms. Allocated memory is still 213.9MB. Free memory was 170.3MB in the beginning and 168.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 22:38:47,724 INFO L158 Benchmark]: Boogie Preprocessor took 25.66ms. Allocated memory is still 213.9MB. Free memory was 168.2MB in the beginning and 166.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-05 22:38:47,724 INFO L158 Benchmark]: RCFGBuilder took 406.18ms. Allocated memory is still 213.9MB. Free memory was 166.6MB in the beginning and 152.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-05 22:38:47,724 INFO L158 Benchmark]: TraceAbstraction took 3676.11ms. Allocated memory was 213.9MB in the beginning and 318.8MB in the end (delta: 104.9MB). Free memory was 151.4MB in the beginning and 159.7MB in the end (delta: -8.3MB). Peak memory consumption was 97.6MB. Max. memory is 8.0GB. [2022-12-05 22:38:47,726 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 213.9MB. Free memory was 191.0MB in the beginning and 191.0MB in the end (delta: 64.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 390.37ms. Allocated memory is still 213.9MB. Free memory was 189.7MB in the beginning and 170.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.80ms. Allocated memory is still 213.9MB. Free memory was 170.3MB in the beginning and 168.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.66ms. Allocated memory is still 213.9MB. Free memory was 168.2MB in the beginning and 166.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 406.18ms. Allocated memory is still 213.9MB. Free memory was 166.6MB in the beginning and 152.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3676.11ms. Allocated memory was 213.9MB in the beginning and 318.8MB in the end (delta: 104.9MB). Free memory was 151.4MB in the beginning and 159.7MB in the end (delta: -8.3MB). Peak memory consumption was 97.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 77 PlacesBefore, 32 PlacesAfterwards, 67 TransitionsBefore, 22 TransitionsAfterwards, 814 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 23 TrivialYvCompositions, 24 ConcurrentYvCompositions, 0 ChoiceCompositions, 47 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 537, independent: 507, independent conditional: 507, independent unconditional: 0, dependent: 30, dependent conditional: 30, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 537, independent: 507, independent conditional: 0, independent unconditional: 507, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 537, independent: 507, independent conditional: 0, independent unconditional: 507, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 537, independent: 507, independent conditional: 0, independent unconditional: 507, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 483, independent: 461, independent conditional: 0, independent unconditional: 461, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 483, independent: 452, independent conditional: 0, independent unconditional: 452, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 31, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 72, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 537, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 483, unknown conditional: 0, unknown unconditional: 483] , Statistics on independence cache: Total cache size (in pairs): 635, Positive cache size: 613, Positive conditional cache size: 0, Positive unconditional cache size: 613, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, 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: 0.0s, 30 PlacesBefore, 30 PlacesAfterwards, 24 TransitionsBefore, 24 TransitionsAfterwards, 196 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 69, independent: 60, independent conditional: 60, independent unconditional: 0, dependent: 9, dependent conditional: 9, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 69, independent: 60, independent conditional: 4, independent unconditional: 56, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 69, independent: 60, independent conditional: 1, independent unconditional: 59, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 69, independent: 60, independent conditional: 1, independent unconditional: 59, dependent: 9, dependent conditional: 3, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 41, independent: 36, independent conditional: 1, independent unconditional: 35, dependent: 5, dependent conditional: 2, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 41, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, independent: 5, independent conditional: 0, independent unconditional: 5, dependent: 5, dependent conditional: 2, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 5, dependent conditional: 1, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 69, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 4, dependent conditional: 1, dependent unconditional: 3, unknown: 41, unknown conditional: 3, unknown unconditional: 38] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 36, Positive conditional cache size: 1, Positive unconditional cache size: 35, Negative cache size: 5, Negative conditional cache size: 2, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 31 PlacesBefore, 25 PlacesAfterwards, 24 TransitionsBefore, 18 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 61, independent: 61, independent conditional: 61, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 61, independent: 61, independent conditional: 24, independent unconditional: 37, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 61, independent: 61, independent conditional: 18, independent unconditional: 43, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 61, independent: 61, independent conditional: 18, independent unconditional: 43, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 30, independent: 30, independent conditional: 12, independent unconditional: 18, 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: 30, independent: 30, independent conditional: 0, independent unconditional: 30, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 61, independent: 31, independent conditional: 6, independent unconditional: 25, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 30, unknown conditional: 12, unknown unconditional: 18] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 76, Positive conditional cache size: 13, Positive unconditional cache size: 63, Negative cache size: 5, Negative conditional cache size: 2, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 29 PlacesBefore, 29 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 68 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, 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: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 76, Positive conditional cache size: 13, Positive unconditional cache size: 63, Negative cache size: 5, Negative conditional cache size: 2, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L702] 0 pthread_mutex_t mutex; [L703] 0 int data = 0; [L731] 0 pthread_t t1, t2, t3; [L732] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={3:0}, pthread_create(&t1, 0, thread1, 0)=-2, t1={6:0}, t2={5:0}, t3={7:0}] [L733] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data=0, mutex={3:0}, pthread_create(&t2, 0, thread2, 0)=-1, t1={6:0}, t2={5:0}, t3={7:0}] [L734] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={3:0}, pthread_create(&t3, 0, thread3, 0)=0, t1={6:0}, t2={5:0}, t3={7:0}] [L707] 1 data++ [L709] 1 return 0; [L714] 2 data+=2 [L716] 2 return 0; [L721] COND TRUE 3 data >= 3 [L722] 3 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={3:0}] - UnprovableResult [Line: 734]: 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: 733]: 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: 732]: 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 7 procedures, 119 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 1 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=2, InterpolantAutomatonStates: 10, 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, 0.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2022-12-05 22:38:47,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...