/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-more-vector-add.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-8d0d62b [2022-12-06 00:21:12,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-06 00:21:12,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-06 00:21:13,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-06 00:21:13,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-06 00:21:13,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-06 00:21:13,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-06 00:21:13,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-06 00:21:13,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-06 00:21:13,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-06 00:21:13,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-06 00:21:13,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-06 00:21:13,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-06 00:21:13,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-06 00:21:13,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-06 00:21:13,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-06 00:21:13,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-06 00:21:13,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-06 00:21:13,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-06 00:21:13,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-06 00:21:13,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-06 00:21:13,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-06 00:21:13,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-06 00:21:13,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-06 00:21:13,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-06 00:21:13,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-06 00:21:13,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-06 00:21:13,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-06 00:21:13,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-06 00:21:13,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-06 00:21:13,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-06 00:21:13,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-06 00:21:13,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-06 00:21:13,045 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-06 00:21:13,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-06 00:21:13,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-06 00:21:13,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-06 00:21:13,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-06 00:21:13,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-06 00:21:13,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-06 00:21:13,048 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-06 00:21:13,049 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 00:21:13,083 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-06 00:21:13,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-06 00:21:13,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-06 00:21:13,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-06 00:21:13,085 INFO L138 SettingsManager]: * Use SBE=true [2022-12-06 00:21:13,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-06 00:21:13,086 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-06 00:21:13,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-06 00:21:13,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-06 00:21:13,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-06 00:21:13,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-06 00:21:13,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-06 00:21:13,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-06 00:21:13,087 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-06 00:21:13,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-06 00:21:13,088 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-06 00:21:13,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-06 00:21:13,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-06 00:21:13,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-06 00:21:13,088 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-06 00:21:13,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-06 00:21:13,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:21:13,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-06 00:21:13,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-06 00:21:13,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-06 00:21:13,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-06 00:21:13,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-06 00:21:13,089 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-06 00:21:13,089 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-06 00:21:13,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-06 00:21:13,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-06 00:21:13,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-06 00:21:13,452 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-06 00:21:13,452 INFO L275 PluginConnector]: CDTParser initialized [2022-12-06 00:21:13,453 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2022-12-06 00:21:14,620 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-06 00:21:14,836 INFO L351 CDTParser]: Found 1 translation units. [2022-12-06 00:21:14,837 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2022-12-06 00:21:14,845 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7d252ee/b82fde1b674c4dbfbce08bfe15d7e687/FLAGac945f73e [2022-12-06 00:21:14,869 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7d252ee/b82fde1b674c4dbfbce08bfe15d7e687 [2022-12-06 00:21:14,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-06 00:21:14,875 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-06 00:21:14,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-06 00:21:14,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-06 00:21:14,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-06 00:21:14,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:21:14" (1/1) ... [2022-12-06 00:21:14,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16f21203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:14, skipping insertion in model container [2022-12-06 00:21:14,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:21:14" (1/1) ... [2022-12-06 00:21:14,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-06 00:21:14,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-06 00:21:15,060 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-more-vector-add.wvr.c[2598,2611] [2022-12-06 00:21:15,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:21:15,078 INFO L203 MainTranslator]: Completed pre-run [2022-12-06 00:21:15,096 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-more-vector-add.wvr.c[2598,2611] [2022-12-06 00:21:15,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-06 00:21:15,110 INFO L208 MainTranslator]: Completed translation [2022-12-06 00:21:15,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:15 WrapperNode [2022-12-06 00:21:15,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-06 00:21:15,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-06 00:21:15,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-06 00:21:15,111 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-06 00:21:15,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:15" (1/1) ... [2022-12-06 00:21:15,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:15" (1/1) ... [2022-12-06 00:21:15,145 INFO L138 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 193 [2022-12-06 00:21:15,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-06 00:21:15,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-06 00:21:15,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-06 00:21:15,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-06 00:21:15,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:15" (1/1) ... [2022-12-06 00:21:15,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:15" (1/1) ... [2022-12-06 00:21:15,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:15" (1/1) ... [2022-12-06 00:21:15,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:15" (1/1) ... [2022-12-06 00:21:15,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:15" (1/1) ... [2022-12-06 00:21:15,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:15" (1/1) ... [2022-12-06 00:21:15,189 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:15" (1/1) ... [2022-12-06 00:21:15,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:15" (1/1) ... [2022-12-06 00:21:15,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-06 00:21:15,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-06 00:21:15,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-06 00:21:15,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-06 00:21:15,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:15" (1/1) ... [2022-12-06 00:21:15,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-06 00:21:15,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:21:15,218 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 00:21:15,220 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 00:21:15,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-06 00:21:15,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-06 00:21:15,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-06 00:21:15,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-06 00:21:15,256 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-06 00:21:15,256 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-06 00:21:15,256 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-06 00:21:15,256 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-06 00:21:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-06 00:21:15,257 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-06 00:21:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-06 00:21:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-06 00:21:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-06 00:21:15,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-06 00:21:15,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-06 00:21:15,259 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 00:21:15,346 INFO L236 CfgBuilder]: Building ICFG [2022-12-06 00:21:15,348 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-06 00:21:15,795 INFO L277 CfgBuilder]: Performing block encoding [2022-12-06 00:21:15,805 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-06 00:21:15,806 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2022-12-06 00:21:15,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:21:15 BoogieIcfgContainer [2022-12-06 00:21:15,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-06 00:21:15,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-06 00:21:15,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-06 00:21:15,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-06 00:21:15,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 12:21:14" (1/3) ... [2022-12-06 00:21:15,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d14c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:21:15, skipping insertion in model container [2022-12-06 00:21:15,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:15" (2/3) ... [2022-12-06 00:21:15,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d14c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 12:21:15, skipping insertion in model container [2022-12-06 00:21:15,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:21:15" (3/3) ... [2022-12-06 00:21:15,822 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2022-12-06 00:21:15,837 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-06 00:21:15,837 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-06 00:21:15,837 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-06 00:21:15,965 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-06 00:21:16,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 250 places, 265 transitions, 554 flow [2022-12-06 00:21:16,151 INFO L130 PetriNetUnfolder]: 25/262 cut-off events. [2022-12-06 00:21:16,152 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 00:21:16,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 262 events. 25/262 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 174 event pairs, 0 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2022-12-06 00:21:16,158 INFO L82 GeneralOperation]: Start removeDead. Operand has 250 places, 265 transitions, 554 flow [2022-12-06 00:21:16,168 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 237 places, 252 transitions, 522 flow [2022-12-06 00:21:16,170 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:21:16,192 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 237 places, 252 transitions, 522 flow [2022-12-06 00:21:16,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 237 places, 252 transitions, 522 flow [2022-12-06 00:21:16,266 INFO L130 PetriNetUnfolder]: 25/252 cut-off events. [2022-12-06 00:21:16,266 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 00:21:16,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 252 events. 25/252 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 173 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 209. Up to 2 conditions per place. [2022-12-06 00:21:16,275 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 237 places, 252 transitions, 522 flow [2022-12-06 00:21:16,275 INFO L188 LiptonReduction]: Number of co-enabled transitions 2184 [2022-12-06 00:21:26,712 INFO L203 LiptonReduction]: Total number of compositions: 216 [2022-12-06 00:21:26,731 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-06 00:21:26,738 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;@1b2573be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-06 00:21:26,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-06 00:21:26,747 INFO L130 PetriNetUnfolder]: 7/35 cut-off events. [2022-12-06 00:21:26,747 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-06 00:21:26,748 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:21:26,748 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:21:26,749 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 00:21:26,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:21:26,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1662809703, now seen corresponding path program 1 times [2022-12-06 00:21:26,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:21:26,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687729131] [2022-12-06 00:21:26,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:21:26,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:21:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:21:27,504 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 00:21:27,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:21:27,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687729131] [2022-12-06 00:21:27,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687729131] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:21:27,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:21:27,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-06 00:21:27,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626434419] [2022-12-06 00:21:27,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:21:27,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-06 00:21:27,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:21:27,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-06 00:21:27,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-06 00:21:27,552 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 36 [2022-12-06 00:21:27,554 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 00:21:27,554 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:21:27,554 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 36 [2022-12-06 00:21:27,555 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:21:28,134 INFO L130 PetriNetUnfolder]: 1632/2322 cut-off events. [2022-12-06 00:21:28,134 INFO L131 PetriNetUnfolder]: For 129/129 co-relation queries the response was YES. [2022-12-06 00:21:28,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4748 conditions, 2322 events. 1632/2322 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 10455 event pairs, 885 based on Foata normal form. 2/1559 useless extension candidates. Maximal degree in co-relation 1294. Up to 755 conditions per place. [2022-12-06 00:21:28,161 INFO L137 encePairwiseOnDemand]: 26/36 looper letters, 26 selfloop transitions, 8 changer transitions 56/96 dead transitions. [2022-12-06 00:21:28,161 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 96 transitions, 426 flow [2022-12-06 00:21:28,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 00:21:28,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 00:21:28,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 122 transitions. [2022-12-06 00:21:28,174 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.6777777777777778 [2022-12-06 00:21:28,176 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 90 flow. Second operand 5 states and 122 transitions. [2022-12-06 00:21:28,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 96 transitions, 426 flow [2022-12-06 00:21:28,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 96 transitions, 390 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-06 00:21:28,200 INFO L231 Difference]: Finished difference. Result has 40 places, 40 transitions, 130 flow [2022-12-06 00:21:28,201 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=130, PETRI_PLACES=40, PETRI_TRANSITIONS=40} [2022-12-06 00:21:28,205 INFO L294 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2022-12-06 00:21:28,205 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:21:28,206 INFO L89 Accepts]: Start accepts. Operand has 40 places, 40 transitions, 130 flow [2022-12-06 00:21:28,226 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:21:28,226 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:21:28,226 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 40 transitions, 130 flow [2022-12-06 00:21:28,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 40 transitions, 130 flow [2022-12-06 00:21:28,241 INFO L130 PetriNetUnfolder]: 7/40 cut-off events. [2022-12-06 00:21:28,241 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-06 00:21:28,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 40 events. 7/40 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 62. Up to 10 conditions per place. [2022-12-06 00:21:28,242 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 40 transitions, 130 flow [2022-12-06 00:21:28,242 INFO L188 LiptonReduction]: Number of co-enabled transitions 300 [2022-12-06 00:21:28,272 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:21:28,274 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 69 [2022-12-06 00:21:28,275 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 40 transitions, 130 flow [2022-12-06 00:21:28,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 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 00:21:28,275 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:21:28,275 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:21:28,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-06 00:21:28,278 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 00:21:28,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:21:28,279 INFO L85 PathProgramCache]: Analyzing trace with hash -499238112, now seen corresponding path program 1 times [2022-12-06 00:21:28,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:21:28,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269117153] [2022-12-06 00:21:28,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:21:28,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:21:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:21:28,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 00:21:28,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:21:28,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269117153] [2022-12-06 00:21:28,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269117153] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 00:21:28,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285176447] [2022-12-06 00:21:28,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:21:28,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:21:28,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:21:28,635 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 00:21:28,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-06 00:21:28,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:21:28,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-06 00:21:28,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 00:21:28,956 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 00:21:28,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-06 00:21:29,025 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 00:21:29,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285176447] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-06 00:21:29,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-06 00:21:29,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 9 [2022-12-06 00:21:29,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416088362] [2022-12-06 00:21:29,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:21:29,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-06 00:21:29,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:21:29,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-06 00:21:29,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-06 00:21:29,028 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 36 [2022-12-06 00:21:29,029 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 40 transitions, 130 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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 00:21:29,029 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:21:29,029 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 36 [2022-12-06 00:21:29,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:21:29,426 INFO L130 PetriNetUnfolder]: 757/1068 cut-off events. [2022-12-06 00:21:29,427 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-06 00:21:29,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2179 conditions, 1068 events. 757/1068 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 4188 event pairs, 239 based on Foata normal form. 0/775 useless extension candidates. Maximal degree in co-relation 2169. Up to 543 conditions per place. [2022-12-06 00:21:29,432 INFO L137 encePairwiseOnDemand]: 30/36 looper letters, 43 selfloop transitions, 5 changer transitions 0/52 dead transitions. [2022-12-06 00:21:29,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 52 transitions, 252 flow [2022-12-06 00:21:29,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-06 00:21:29,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-06 00:21:29,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 66 transitions. [2022-12-06 00:21:29,456 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.36666666666666664 [2022-12-06 00:21:29,457 INFO L175 Difference]: Start difference. First operand has 38 places, 40 transitions, 130 flow. Second operand 5 states and 66 transitions. [2022-12-06 00:21:29,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 52 transitions, 252 flow [2022-12-06 00:21:29,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 52 transitions, 234 flow, removed 5 selfloop flow, removed 3 redundant places. [2022-12-06 00:21:29,459 INFO L231 Difference]: Finished difference. Result has 41 places, 41 transitions, 135 flow [2022-12-06 00:21:29,459 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=135, PETRI_PLACES=41, PETRI_TRANSITIONS=41} [2022-12-06 00:21:29,460 INFO L294 CegarLoopForPetriNet]: 39 programPoint places, 2 predicate places. [2022-12-06 00:21:29,460 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:21:29,460 INFO L89 Accepts]: Start accepts. Operand has 41 places, 41 transitions, 135 flow [2022-12-06 00:21:29,461 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:21:29,461 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:21:29,461 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 41 transitions, 135 flow [2022-12-06 00:21:29,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 41 transitions, 135 flow [2022-12-06 00:21:29,467 INFO L130 PetriNetUnfolder]: 7/41 cut-off events. [2022-12-06 00:21:29,483 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-06 00:21:29,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 41 events. 7/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 47. Up to 10 conditions per place. [2022-12-06 00:21:29,495 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 41 transitions, 135 flow [2022-12-06 00:21:29,496 INFO L188 LiptonReduction]: Number of co-enabled transitions 330 [2022-12-06 00:21:31,515 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 00:21:31,516 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2056 [2022-12-06 00:21:31,517 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 40 transitions, 129 flow [2022-12-06 00:21:31,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 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 00:21:31,517 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:21:31,517 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:21:31,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-06 00:21:31,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:21:31,723 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 00:21:31,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:21:31,724 INFO L85 PathProgramCache]: Analyzing trace with hash 967035060, now seen corresponding path program 1 times [2022-12-06 00:21:31,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:21:31,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976888917] [2022-12-06 00:21:31,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:21:31,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:21:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:21:31,895 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 00:21:31,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:21:31,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976888917] [2022-12-06 00:21:31,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976888917] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:21:31,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-06 00:21:31,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-06 00:21:31,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796441280] [2022-12-06 00:21:31,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:21:31,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 00:21:31,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:21:31,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 00:21:31,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-06 00:21:31,898 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 36 [2022-12-06 00:21:31,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 40 transitions, 129 flow. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 00:21:31,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:21:31,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 36 [2022-12-06 00:21:31,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:21:32,270 INFO L130 PetriNetUnfolder]: 1273/1849 cut-off events. [2022-12-06 00:21:32,270 INFO L131 PetriNetUnfolder]: For 1048/1268 co-relation queries the response was YES. [2022-12-06 00:21:32,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4430 conditions, 1849 events. 1273/1849 cut-off events. For 1048/1268 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 8097 event pairs, 323 based on Foata normal form. 220/1853 useless extension candidates. Maximal degree in co-relation 4387. Up to 673 conditions per place. [2022-12-06 00:21:32,282 INFO L137 encePairwiseOnDemand]: 28/36 looper letters, 95 selfloop transitions, 14 changer transitions 0/111 dead transitions. [2022-12-06 00:21:32,282 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 111 transitions, 560 flow [2022-12-06 00:21:32,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-06 00:21:32,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-06 00:21:32,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 117 transitions. [2022-12-06 00:21:32,287 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.40625 [2022-12-06 00:21:32,288 INFO L175 Difference]: Start difference. First operand has 40 places, 40 transitions, 129 flow. Second operand 8 states and 117 transitions. [2022-12-06 00:21:32,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 111 transitions, 560 flow [2022-12-06 00:21:32,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 111 transitions, 542 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-06 00:21:32,293 INFO L231 Difference]: Finished difference. Result has 49 places, 51 transitions, 203 flow [2022-12-06 00:21:32,293 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=203, PETRI_PLACES=49, PETRI_TRANSITIONS=51} [2022-12-06 00:21:32,295 INFO L294 CegarLoopForPetriNet]: 39 programPoint places, 10 predicate places. [2022-12-06 00:21:32,295 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:21:32,295 INFO L89 Accepts]: Start accepts. Operand has 49 places, 51 transitions, 203 flow [2022-12-06 00:21:32,297 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:21:32,298 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:21:32,298 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 51 transitions, 203 flow [2022-12-06 00:21:32,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 51 transitions, 203 flow [2022-12-06 00:21:32,308 INFO L130 PetriNetUnfolder]: 19/82 cut-off events. [2022-12-06 00:21:32,308 INFO L131 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-12-06 00:21:32,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 82 events. 19/82 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 210 event pairs, 0 based on Foata normal form. 0/76 useless extension candidates. Maximal degree in co-relation 128. Up to 14 conditions per place. [2022-12-06 00:21:32,309 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 51 transitions, 203 flow [2022-12-06 00:21:32,309 INFO L188 LiptonReduction]: Number of co-enabled transitions 566 [2022-12-06 00:21:32,323 INFO L203 LiptonReduction]: Total number of compositions: 0 [2022-12-06 00:21:32,324 INFO L143 eatedLiptonReduction]: Time needed for LBE in milliseconds: 29 [2022-12-06 00:21:32,325 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 51 transitions, 203 flow [2022-12-06 00:21:32,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 00:21:32,325 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-06 00:21:32,325 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-06 00:21:32,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-06 00:21:32,325 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-06 00:21:32,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-06 00:21:32,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1203067990, now seen corresponding path program 2 times [2022-12-06 00:21:32,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-06 00:21:32,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568633920] [2022-12-06 00:21:32,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-06 00:21:32,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-06 00:21:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-06 00:21:32,467 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 00:21:32,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-06 00:21:32,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568633920] [2022-12-06 00:21:32,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568633920] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-06 00:21:32,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822294385] [2022-12-06 00:21:32,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-06 00:21:32,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-06 00:21:32,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-06 00:21:32,476 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-06 00:21:32,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-06 00:21:32,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-06 00:21:32,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-06 00:21:32,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-06 00:21:32,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-06 00:21:32,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-06 00:21:32,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-06 00:21:32,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822294385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-06 00:21:32,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-06 00:21:32,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-06 00:21:32,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582284156] [2022-12-06 00:21:32,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-06 00:21:32,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-06 00:21:32,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-06 00:21:32,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-06 00:21:32,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-06 00:21:32,661 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 2 out of 36 [2022-12-06 00:21:32,661 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 51 transitions, 203 flow. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 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 00:21:32,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-06 00:21:32,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 2 of 36 [2022-12-06 00:21:32,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-06 00:21:33,033 INFO L130 PetriNetUnfolder]: 2195/3181 cut-off events. [2022-12-06 00:21:33,034 INFO L131 PetriNetUnfolder]: For 2929/3305 co-relation queries the response was YES. [2022-12-06 00:21:33,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9126 conditions, 3181 events. 2195/3181 cut-off events. For 2929/3305 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 14682 event pairs, 889 based on Foata normal form. 386/3562 useless extension candidates. Maximal degree in co-relation 9080. Up to 1819 conditions per place. [2022-12-06 00:21:33,057 INFO L137 encePairwiseOnDemand]: 29/36 looper letters, 95 selfloop transitions, 9 changer transitions 0/106 dead transitions. [2022-12-06 00:21:33,058 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 106 transitions, 628 flow [2022-12-06 00:21:33,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-06 00:21:33,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-06 00:21:33,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 88 transitions. [2022-12-06 00:21:33,059 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.4074074074074074 [2022-12-06 00:21:33,059 INFO L175 Difference]: Start difference. First operand has 49 places, 51 transitions, 203 flow. Second operand 6 states and 88 transitions. [2022-12-06 00:21:33,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 106 transitions, 628 flow [2022-12-06 00:21:33,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 106 transitions, 627 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-06 00:21:33,075 INFO L231 Difference]: Finished difference. Result has 56 places, 57 transitions, 275 flow [2022-12-06 00:21:33,075 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=275, PETRI_PLACES=56, PETRI_TRANSITIONS=57} [2022-12-06 00:21:33,076 INFO L294 CegarLoopForPetriNet]: 39 programPoint places, 17 predicate places. [2022-12-06 00:21:33,076 WARN L163 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-06 00:21:33,076 INFO L89 Accepts]: Start accepts. Operand has 56 places, 57 transitions, 275 flow [2022-12-06 00:21:33,077 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:21:33,078 INFO L195 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-06 00:21:33,078 INFO L167 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 56 places, 57 transitions, 275 flow [2022-12-06 00:21:33,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 57 transitions, 275 flow [2022-12-06 00:21:33,089 INFO L130 PetriNetUnfolder]: 23/110 cut-off events. [2022-12-06 00:21:33,089 INFO L131 PetriNetUnfolder]: For 61/63 co-relation queries the response was YES. [2022-12-06 00:21:33,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 110 events. 23/110 cut-off events. For 61/63 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 356 event pairs, 1 based on Foata normal form. 1/103 useless extension candidates. Maximal degree in co-relation 205. Up to 15 conditions per place. [2022-12-06 00:21:33,091 INFO L184 LiptonReduction]: Starting Lipton reduction on Petri net that has 56 places, 57 transitions, 275 flow [2022-12-06 00:21:33,091 INFO L188 LiptonReduction]: Number of co-enabled transitions 710 [2022-12-06 00:21:33,106 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [947] L66-5-->thread3EXIT: Formula: (and (not (< v_thread3Thread1of1ForFork0_~i~2_In_4 v_~N~0_In_20)) (= |v_thread3Thread1of1ForFork0_#res.offset_Out_4| 0) (= |v_thread3Thread1of1ForFork0_#res.base_Out_4| 0)) InVars {thread3Thread1of1ForFork0_~i~2=v_thread3Thread1of1ForFork0_~i~2_In_4, ~N~0=v_~N~0_In_20} OutVars{thread3Thread1of1ForFork0_~i~2=v_thread3Thread1of1ForFork0_~i~2_In_4, thread3Thread1of1ForFork0_#res.base=|v_thread3Thread1of1ForFork0_#res.base_Out_4|, ~N~0=v_~N~0_In_20, thread3Thread1of1ForFork0_#res.offset=|v_thread3Thread1of1ForFork0_#res.offset_Out_4|} AuxVars[] AssignedVars[thread3Thread1of1ForFork0_#res.offset, thread3Thread1of1ForFork0_#res.base] and [651] $Ultimate##0-->L58-5: Formula: (= v_thread2Thread1of1ForFork2_~i~1_1 0) InVars {} OutVars{thread2Thread1of1ForFork2_~i~1=v_thread2Thread1of1ForFork2_~i~1_1} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_~i~1] [2022-12-06 00:21:33,138 ERROR L799 SequenceRule]: Run adaptation not supported for post-scripts [2022-12-06 00:21:33,140 INFO L203 LiptonReduction]: Total number of compositions: 1 [2022-12-06 00:21:33,141 ERROR L123 eatedLiptonReduction]: Lipton reduction run adaptation of counterexample failed. [2022-12-06 00:21:33,141 INFO L89 Accepts]: Start accepts. Operand has 55 places, 55 transitions, 264 flow [2022-12-06 00:21:33,142 INFO L95 Accepts]: Finished accepts. [2022-12-06 00:21:33,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-06 00:21:33,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-12-06 00:21:33,349 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 00:21:33,352 INFO L158 Benchmark]: Toolchain (without parser) took 18477.07ms. Allocated memory was 181.4MB in the beginning and 325.1MB in the end (delta: 143.7MB). Free memory was 157.2MB in the beginning and 152.1MB in the end (delta: 5.1MB). Peak memory consumption was 150.6MB. Max. memory is 8.0GB. [2022-12-06 00:21:33,352 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 181.4MB. Free memory was 157.6MB in the beginning and 157.5MB in the end (delta: 85.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-06 00:21:33,352 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.09ms. Allocated memory is still 181.4MB. Free memory was 156.7MB in the beginning and 145.1MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-12-06 00:21:33,352 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.65ms. Allocated memory is still 181.4MB. Free memory was 145.1MB in the beginning and 143.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 00:21:33,353 INFO L158 Benchmark]: Boogie Preprocessor took 46.40ms. Allocated memory is still 181.4MB. Free memory was 143.0MB in the beginning and 140.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-12-06 00:21:33,353 INFO L158 Benchmark]: RCFGBuilder took 614.64ms. Allocated memory is still 181.4MB. Free memory was 140.9MB in the beginning and 118.9MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-12-06 00:21:33,353 INFO L158 Benchmark]: TraceAbstraction took 17541.53ms. Allocated memory was 181.4MB in the beginning and 325.1MB in the end (delta: 143.7MB). Free memory was 118.4MB in the beginning and 152.1MB in the end (delta: -33.7MB). Peak memory consumption was 111.8MB. Max. memory is 8.0GB. [2022-12-06 00:21:33,354 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 181.4MB. Free memory was 157.6MB in the beginning and 157.5MB in the end (delta: 85.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 234.09ms. Allocated memory is still 181.4MB. Free memory was 156.7MB in the beginning and 145.1MB in the end (delta: 11.6MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.65ms. Allocated memory is still 181.4MB. Free memory was 145.1MB in the beginning and 143.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 46.40ms. Allocated memory is still 181.4MB. Free memory was 143.0MB in the beginning and 140.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 614.64ms. Allocated memory is still 181.4MB. Free memory was 140.9MB in the beginning and 118.9MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 17541.53ms. Allocated memory was 181.4MB in the beginning and 325.1MB in the end (delta: 143.7MB). Free memory was 118.4MB in the beginning and 152.1MB in the end (delta: -33.7MB). Peak memory consumption was 111.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.4s, 237 PlacesBefore, 39 PlacesAfterwards, 252 TransitionsBefore, 36 TransitionsAfterwards, 2184 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 162 TrivialYvCompositions, 36 ConcurrentYvCompositions, 18 ChoiceCompositions, 216 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1134, independent: 1091, independent conditional: 1091, independent unconditional: 0, dependent: 43, dependent conditional: 43, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1134, independent: 1091, independent conditional: 0, independent unconditional: 1091, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1134, independent: 1091, independent conditional: 0, independent unconditional: 1091, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1134, independent: 1091, independent conditional: 0, independent unconditional: 1091, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1078, independent: 1051, independent conditional: 0, independent unconditional: 1051, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1078, independent: 1051, independent conditional: 0, independent unconditional: 1051, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 27, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 86, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1134, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 16, dependent conditional: 0, dependent unconditional: 16, unknown: 1078, unknown conditional: 0, unknown unconditional: 1078] , Statistics on independence cache: Total cache size (in pairs): 1621, Positive cache size: 1594, Positive conditional cache size: 0, Positive unconditional cache size: 1594, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, 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, 38 PlacesBefore, 38 PlacesAfterwards, 40 TransitionsBefore, 40 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 55, independent: 43, independent conditional: 43, independent unconditional: 0, dependent: 12, dependent conditional: 12, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 55, independent: 43, independent conditional: 0, independent unconditional: 43, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 55, independent: 43, independent conditional: 0, independent unconditional: 43, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 55, independent: 43, independent conditional: 0, independent unconditional: 43, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 50, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 50, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 11, dependent conditional: 0, dependent unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 27, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 55, independent: 4, independent conditional: 0, independent unconditional: 4, dependent: 1, dependent conditional: 0, dependent unconditional: 1, unknown: 50, unknown conditional: 0, unknown unconditional: 50] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0s, 41 PlacesBefore, 40 PlacesAfterwards, 41 TransitionsBefore, 40 TransitionsAfterwards, 330 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 34, independent: 6, independent conditional: 6, independent unconditional: 0, dependent: 28, dependent conditional: 28, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 34, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 28, dependent conditional: 6, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 34, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 28, dependent conditional: 6, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 34, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 28, dependent conditional: 6, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 2, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 0, dependent unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 7, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 7, dependent conditional: 2, dependent unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 14, dependent conditional: 4, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 34, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 21, dependent conditional: 4, dependent unconditional: 17, unknown: 7, unknown conditional: 2, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 57, Positive cache size: 39, Positive conditional cache size: 0, Positive unconditional cache size: 39, Negative cache size: 18, Negative conditional cache size: 2, Negative unconditional cache size: 16, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 49 PlacesBefore, 49 PlacesAfterwards, 51 TransitionsBefore, 51 TransitionsAfterwards, 566 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 34, independent: 23, independent conditional: 23, independent unconditional: 0, dependent: 11, dependent conditional: 11, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 34, independent: 23, independent conditional: 15, independent unconditional: 8, dependent: 11, dependent conditional: 8, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 34, independent: 23, independent conditional: 15, independent unconditional: 8, dependent: 11, dependent conditional: 8, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 34, independent: 23, independent conditional: 15, independent unconditional: 8, dependent: 11, dependent conditional: 8, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 20, independent: 12, independent conditional: 9, independent unconditional: 3, dependent: 8, dependent conditional: 6, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 20, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 8, dependent conditional: 6, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 11, dependent conditional: 9, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 34, independent: 11, independent conditional: 6, independent unconditional: 5, dependent: 3, dependent conditional: 2, dependent unconditional: 1, unknown: 20, unknown conditional: 15, unknown unconditional: 5] , Statistics on independence cache: Total cache size (in pairs): 77, Positive cache size: 51, Positive conditional cache size: 9, Positive unconditional cache size: 42, Negative cache size: 26, Negative conditional cache size: 8, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 56 PlacesBefore, 55 PlacesAfterwards, 57 TransitionsBefore, 55 TransitionsAfterwards, 710 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 135, independent: 107, independent conditional: 107, independent unconditional: 0, dependent: 28, dependent conditional: 28, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 135, independent: 107, independent conditional: 79, independent unconditional: 28, dependent: 28, dependent conditional: 12, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 145, independent: 107, independent conditional: 63, independent unconditional: 44, dependent: 38, dependent conditional: 22, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 145, independent: 107, independent conditional: 63, independent unconditional: 44, dependent: 38, dependent conditional: 22, dependent unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 31, independent: 23, independent conditional: 17, independent unconditional: 6, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 31, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 13, dependent conditional: 13, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 145, independent: 84, independent conditional: 46, independent unconditional: 38, dependent: 30, dependent conditional: 14, dependent unconditional: 16, unknown: 31, unknown conditional: 25, unknown unconditional: 6] , Statistics on independence cache: Total cache size (in pairs): 108, Positive cache size: 74, Positive conditional cache size: 26, Positive unconditional cache size: 48, Negative cache size: 34, Negative conditional cache size: 16, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 16, Maximal queried relation: 1 - 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 00:21:33,374 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...