/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/weaver/popl20-nonblocking-cntr.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 00:21:53,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 00:21:53,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 00:21:53,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 00:21:53,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 00:21:53,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 00:21:53,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 00:21:53,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 00:21:53,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 00:21:53,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 00:21:53,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 00:21:53,402 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 00:21:53,402 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 00:21:53,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 00:21:53,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 00:21:53,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 00:21:53,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 00:21:53,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 00:21:53,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 00:21:53,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 00:21:53,419 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 00:21:53,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 00:21:53,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 00:21:53,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 00:21:53,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 00:21:53,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 00:21:53,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 00:21:53,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 00:21:53,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 00:21:53,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 00:21:53,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 00:21:53,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 00:21:53,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 00:21:53,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 00:21:53,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 00:21:53,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 00:21:53,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 00:21:53,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 00:21:53,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 00:21:53,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 00:21:53,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 00:21:53,446 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 [2022-12-06 00:21:53,510 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 00:21:53,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 00:21:53,513 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 00:21:53,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 00:21:53,514 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 00:21:53,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 00:21:53,515 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 00:21:53,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 00:21:53,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 00:21:53,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 00:21:53,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 00:21:53,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 00:21:53,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 00:21:53,516 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 00:21:53,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 00:21:53,516 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 00:21:53,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 00:21:53,517 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 00:21:53,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 00:21:53,517 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 00:21:53,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 00:21:53,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:21:53,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 00:21:53,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 00:21:53,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 00:21:53,518 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 00:21:53,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 00:21:53,518 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 00:21:53,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 00:21:54,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 00:21:54,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 00:21:54,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 00:21:54,081 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 00:21:54,092 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 00:21:54,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c [2022-12-06 00:21:55,928 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 00:21:56,266 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 00:21:56,267 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c [2022-12-06 00:21:56,273 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78077eeb3/ee1dacdac77c4149a64182ea85c7acde/FLAG621334cd6 [2022-12-06 00:21:56,298 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78077eeb3/ee1dacdac77c4149a64182ea85c7acde [2022-12-06 00:21:56,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 00:21:56,301 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 00:21:56,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 00:21:56,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 00:21:56,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 00:21:56,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:21:56" (1/1) ... [2022-12-06 00:21:56,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7df2608c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:56, skipping insertion in model container [2022-12-06 00:21:56,310 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:21:56" (1/1) ... [2022-12-06 00:21:56,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 00:21:56,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 00:21:56,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:21:56,536 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:21:56,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:21:56,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:21:56,549 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c[2037,2050] [2022-12-06 00:21:56,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:21:56,561 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 00:21:56,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:21:56,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:21:56,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-06 00:21:56,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-06 00:21:56,593 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-nonblocking-cntr.wvr.c[2037,2050] [2022-12-06 00:21:56,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:21:56,625 INFO L208 MainTranslator]: Completed translation [2022-12-06 00:21:56,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:56 WrapperNode [2022-12-06 00:21:56,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 00:21:56,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 00:21:56,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 00:21:56,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 00:21:56,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:56" (1/1) ... [2022-12-06 00:21:56,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:56" (1/1) ... [2022-12-06 00:21:56,685 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2022-12-06 00:21:56,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 00:21:56,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 00:21:56,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 00:21:56,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 00:21:56,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:56" (1/1) ... [2022-12-06 00:21:56,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:56" (1/1) ... [2022-12-06 00:21:56,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:56" (1/1) ... [2022-12-06 00:21:56,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:56" (1/1) ... [2022-12-06 00:21:56,729 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:56" (1/1) ... [2022-12-06 00:21:56,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:56" (1/1) ... [2022-12-06 00:21:56,732 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:56" (1/1) ... [2022-12-06 00:21:56,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:56" (1/1) ... [2022-12-06 00:21:56,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 00:21:56,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 00:21:56,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 00:21:56,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 00:21:56,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:56" (1/1) ... [2022-12-06 00:21:56,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:21:56,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:21:56,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-06 00:21:56,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-06 00:21:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 00:21:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 00:21:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 00:21:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 00:21:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 00:21:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 00:21:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 00:21:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 00:21:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-06 00:21:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-06 00:21:56,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 00:21:56,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 00:21:56,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 00:21:56,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 00:21:56,904 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-06 00:21:57,048 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 00:21:57,050 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 00:21:57,277 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 00:21:57,352 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 00:21:57,353 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-06 00:21:57,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:21:57 BoogieIcfgContainer [2022-12-06 00:21:57,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 00:21:57,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 00:21:57,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 00:21:57,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 00:21:57,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 12:21:56" (1/3) ... [2022-12-06 00:21:57,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365d886e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:21:57, skipping insertion in model container [2022-12-06 00:21:57,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:56" (2/3) ... [2022-12-06 00:21:57,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365d886e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:21:57, skipping insertion in model container [2022-12-06 00:21:57,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:21:57" (3/3) ... [2022-12-06 00:21:57,361 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr.wvr.c [2022-12-06 00:21:57,399 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 00:21:57,406 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 00:21:57,406 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 00:21:57,514 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-06 00:21:57,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 75 transitions, 166 flow [2022-12-06 00:21:57,700 INFO L130 PetriNetUnfolder]: 6/73 cut-off events. [2022-12-06 00:21:57,701 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:21:57,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 73 events. 6/73 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 42 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2022-12-06 00:21:57,705 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 75 transitions, 166 flow [2022-12-06 00:21:57,711 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 65 transitions, 142 flow [2022-12-06 00:21:57,713 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:21:57,732 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 65 transitions, 142 flow [2022-12-06 00:21:57,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 65 transitions, 142 flow [2022-12-06 00:21:57,770 INFO L130 PetriNetUnfolder]: 6/65 cut-off events. [2022-12-06 00:21:57,771 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:21:57,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 65 events. 6/65 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2022-12-06 00:21:57,775 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 65 transitions, 142 flow [2022-12-06 00:21:57,775 INFO L188 LiptonReduction]: Number of co-enabled transitions 404 [2022-12-06 00:22:00,442 INFO L203 LiptonReduction]: Total number of compositions: 50 [2022-12-06 00:22:00,459 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 00:22:00,464 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;@599ca388, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 00:22:00,465 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-06 00:22:00,469 INFO L130 PetriNetUnfolder]: 2/14 cut-off events. [2022-12-06 00:22:00,469 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:22:00,469 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:22:00,470 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:22:00,470 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-12-06 00:22:00,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:22:00,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1047005972, now seen corresponding path program 1 times [2022-12-06 00:22:00,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:22:00,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835229759] [2022-12-06 00:22:00,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:22:00,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:22:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:22:00,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-06 00:22:00,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:22:00,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835229759] [2022-12-06 00:22:00,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835229759] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:22:00,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:22:00,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-06 00:22:00,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880723630] [2022-12-06 00:22:00,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:22:00,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 00:22:00,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:22:00,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 00:22:00,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-06 00:22:00,851 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 1 out of 15 [2022-12-06 00:22:00,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 15 transitions, 42 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) [2022-12-06 00:22:00,853 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:22:00,853 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1 of 15 [2022-12-06 00:22:00,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:22:00,903 INFO L130 PetriNetUnfolder]: 59/100 cut-off events. [2022-12-06 00:22:00,903 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-12-06 00:22:00,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 100 events. 59/100 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 250 event pairs, 23 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 165. Up to 78 conditions per place. [2022-12-06 00:22:00,905 INFO L137 encePairwiseOnDemand]: 11/15 looper letters, 17 selfloop transitions, 3 changer transitions 0/21 dead transitions. [2022-12-06 00:22:00,905 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 21 transitions, 97 flow [2022-12-06 00:22:00,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-06 00:22:00,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-06 00:22:00,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2022-12-06 00:22:00,915 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2022-12-06 00:22:00,917 INFO L175 Difference]: Start difference. First operand has 20 places, 15 transitions, 42 flow. Second operand 4 states and 25 transitions. [2022-12-06 00:22:00,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 23 places, 21 transitions, 97 flow [2022-12-06 00:22:00,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 21 transitions, 87 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-06 00:22:00,921 INFO L231 Difference]: Finished difference. Result has 20 places, 16 transitions, 48 flow [2022-12-06 00:22:00,922 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=15, PETRI_DIFFERENCE_MINUEND_FLOW=34, PETRI_DIFFERENCE_MINUEND_PLACES=16, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=48, PETRI_PLACES=20, PETRI_TRANSITIONS=16} [2022-12-06 00:22:00,925 INFO L294 CegarLoopForPetriNet]: 20 programPoint places, 0 predicate places. [2022-12-06 00:22:00,925 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:22:00,926 INFO L89 Accepts]: Start accepts. Operand has 20 places, 16 transitions, 48 flow [2022-12-06 00:22:00,928 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:22:00,929 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:22:00,929 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 20 places, 16 transitions, 48 flow [2022-12-06 00:22:00,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 20 places, 16 transitions, 48 flow [2022-12-06 00:22:00,934 INFO L130 PetriNetUnfolder]: 2/16 cut-off events. [2022-12-06 00:22:00,934 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 00:22:00,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 16 events. 2/16 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 0/14 useless extension candidates. Maximal degree in co-relation 13. Up to 4 conditions per place. [2022-12-06 00:22:00,935 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 20 places, 16 transitions, 48 flow [2022-12-06 00:22:00,935 INFO L188 LiptonReduction]: Number of co-enabled transitions 66 [2022-12-06 00:22:00,943 ERROR L799 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-06 00:22:00,944 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 00:22:00,945 ERROR L123 eatedLiptonReduction]: Lipton reduction run adaptation of counterexample failed. [2022-12-06 00:22:00,946 INFO L89 Accepts]: Start accepts. Operand has 20 places, 15 transitions, 43 flow [2022-12-06 00:22:00,946 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:22:00,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 00:22:00,947 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word is no longer accepted by reduced abstraction! at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.refineAbstraction(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-12-06 00:22:00,954 INFO L158 Benchmark]: Toolchain (without parser) took 4649.66ms. Allocated memory was 178.3MB in the beginning and 215.0MB in the end (delta: 36.7MB). Free memory was 154.8MB in the beginning and 146.6MB in the end (delta: 8.1MB). Peak memory consumption was 45.7MB. Max. memory is 8.0GB. [2022-12-06 00:22:00,955 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory is still 154.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 00:22:00,955 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.41ms. Allocated memory is still 178.3MB. Free memory was 154.6MB in the beginning and 143.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-06 00:22:00,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.35ms. Allocated memory is still 178.3MB. Free memory was 143.1MB in the beginning and 141.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 00:22:00,957 INFO L158 Benchmark]: Boogie Preprocessor took 48.30ms. Allocated memory is still 178.3MB. Free memory was 141.5MB in the beginning and 140.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-12-06 00:22:00,960 INFO L158 Benchmark]: RCFGBuilder took 599.39ms. Allocated memory is still 178.3MB. Free memory was 140.5MB in the beginning and 125.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-12-06 00:22:00,964 INFO L158 Benchmark]: TraceAbstraction took 3593.61ms. Allocated memory was 178.3MB in the beginning and 215.0MB in the end (delta: 36.7MB). Free memory was 125.2MB in the beginning and 146.6MB in the end (delta: -21.4MB). Peak memory consumption was 16.4MB. Max. memory is 8.0GB. [2022-12-06 00:22:00,967 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory is still 154.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 321.41ms. Allocated memory is still 178.3MB. Free memory was 154.6MB in the beginning and 143.1MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 58.35ms. Allocated memory is still 178.3MB. Free memory was 143.1MB in the beginning and 141.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.30ms. Allocated memory is still 178.3MB. Free memory was 141.5MB in the beginning and 140.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 599.39ms. Allocated memory is still 178.3MB. Free memory was 140.5MB in the beginning and 125.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 3593.61ms. Allocated memory was 178.3MB in the beginning and 215.0MB in the end (delta: 36.7MB). Free memory was 125.2MB in the beginning and 146.6MB in the end (delta: -21.4MB). Peak memory consumption was 16.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 66 PlacesBefore, 20 PlacesAfterwards, 65 TransitionsBefore, 15 TransitionsAfterwards, 404 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 30 TrivialYvCompositions, 16 ConcurrentYvCompositions, 4 ChoiceCompositions, 50 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 199, independent: 197, independent conditional: 197, independent unconditional: 0, dependent: 2, dependent conditional: 2, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 199, independent: 197, independent conditional: 0, independent unconditional: 197, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 199, independent: 197, independent conditional: 0, independent unconditional: 197, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 199, independent: 197, independent conditional: 0, independent unconditional: 197, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 199, independent: 197, independent conditional: 0, independent unconditional: 197, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 199, independent: 197, independent conditional: 0, independent unconditional: 197, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 10, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 199, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 199, unknown conditional: 0, unknown unconditional: 199] , Statistics on independence cache: Total cache size (in pairs): 313, Positive cache size: 311, Positive conditional cache size: 0, Positive unconditional cache size: 311, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, 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, 20 PlacesBefore, 20 PlacesAfterwards, 16 TransitionsBefore, 15 TransitionsAfterwards, 66 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8, independent: 7, independent conditional: 7, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8, independent: 7, independent conditional: 3, independent unconditional: 4, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8, independent: 7, independent conditional: 3, independent unconditional: 4, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, independent: 7, independent conditional: 3, independent unconditional: 4, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 1, dependent conditional: 1, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 8, unknown conditional: 4, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 7, Positive conditional cache size: 3, Positive unconditional cache size: 4, Negative cache size: 1, Negative conditional cache size: 1, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 4, Maximal queried relation: 0 - ExceptionOrErrorResult: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word is no longer accepted by reduced abstraction! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Lipton reduction run adaptation failed, and the cached counterexample word is no longer accepted by reduced abstraction!: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.CegarLoopForPetriNetWithRepeatedLiptonReduction.applyLargeBlockEncoding(CegarLoopForPetriNetWithRepeatedLiptonReduction.java:132) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-12-06 00:22:00,988 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...