/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 00:07:38,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 00:07:39,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 00:07:39,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-28 00:07:39,062 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 00:07:39,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 00:07:39,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 00:07:39,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 00:07:39,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 00:07:39,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 00:07:39,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 00:07:39,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 00:07:39,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 00:07:39,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 00:07:39,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 00:07:39,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 00:07:39,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 00:07:39,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 00:07:39,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 00:07:39,094 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 00:07:39,095 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 00:07:39,125 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 00:07:39,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 00:07:39,126 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 00:07:39,127 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 00:07:39,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 00:07:39,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 00:07:39,128 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 00:07:39,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 00:07:39,128 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 00:07:39,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 00:07:39,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 00:07:39,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 00:07:39,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 00:07:39,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 00:07:39,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 00:07:39,130 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 00:07:39,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 00:07:39,130 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 00:07:39,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 00:07:39,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 00:07:39,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 00:07:39,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 00:07:39,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 00:07:39,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:07:39,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 00:07:39,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 00:07:39,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 00:07:39,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 00:07:39,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 00:07:39,132 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 00:07:39,132 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 00:07:39,133 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 00:07:39,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 00:07:39,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 00:07:39,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 00:07:39,402 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 00:07:39,403 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 00:07:39,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i [2023-01-28 00:07:40,593 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 00:07:40,789 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 00:07:40,790 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i [2023-01-28 00:07:40,801 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/706051659/be82f101ee6f4e70b3ba1ce572b0179d/FLAG9e57aff32 [2023-01-28 00:07:40,818 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/706051659/be82f101ee6f4e70b3ba1ce572b0179d [2023-01-28 00:07:40,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 00:07:40,821 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 00:07:40,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 00:07:40,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 00:07:40,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 00:07:40,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:07:40" (1/1) ... [2023-01-28 00:07:40,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73985d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:40, skipping insertion in model container [2023-01-28 00:07:40,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:07:40" (1/1) ... [2023-01-28 00:07:40,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 00:07:40,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 00:07:41,142 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i[31163,31176] [2023-01-28 00:07:41,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:07:41,167 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 00:07:41,223 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/26_stack_cas_longer-2.i[31163,31176] [2023-01-28 00:07:41,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:07:41,276 INFO L208 MainTranslator]: Completed translation [2023-01-28 00:07:41,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:41 WrapperNode [2023-01-28 00:07:41,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 00:07:41,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 00:07:41,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 00:07:41,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 00:07:41,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:41" (1/1) ... [2023-01-28 00:07:41,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:41" (1/1) ... [2023-01-28 00:07:41,346 INFO L138 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 188 [2023-01-28 00:07:41,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 00:07:41,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 00:07:41,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 00:07:41,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 00:07:41,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:41" (1/1) ... [2023-01-28 00:07:41,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:41" (1/1) ... [2023-01-28 00:07:41,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:41" (1/1) ... [2023-01-28 00:07:41,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:41" (1/1) ... [2023-01-28 00:07:41,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:41" (1/1) ... [2023-01-28 00:07:41,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:41" (1/1) ... [2023-01-28 00:07:41,384 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:41" (1/1) ... [2023-01-28 00:07:41,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:41" (1/1) ... [2023-01-28 00:07:41,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 00:07:41,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 00:07:41,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 00:07:41,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 00:07:41,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:41" (1/1) ... [2023-01-28 00:07:41,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:07:41,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 00:07:41,432 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-28 00:07:41,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-28 00:07:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 00:07:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-01-28 00:07:41,478 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-01-28 00:07:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 00:07:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 00:07:41,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 00:07:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 00:07:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 00:07:41,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 00:07:41,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 00:07:41,480 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 00:07:41,669 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 00:07:41,671 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 00:07:41,990 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 00:07:42,195 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 00:07:42,195 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-01-28 00:07:42,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:07:42 BoogieIcfgContainer [2023-01-28 00:07:42,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 00:07:42,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 00:07:42,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 00:07:42,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 00:07:42,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 12:07:40" (1/3) ... [2023-01-28 00:07:42,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6129c888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:07:42, skipping insertion in model container [2023-01-28 00:07:42,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:07:41" (2/3) ... [2023-01-28 00:07:42,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6129c888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:07:42, skipping insertion in model container [2023-01-28 00:07:42,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:07:42" (3/3) ... [2023-01-28 00:07:42,206 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longer-2.i [2023-01-28 00:07:42,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 00:07:42,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 00:07:42,224 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 00:07:42,306 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:07:42,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 114 transitions, 233 flow [2023-01-28 00:07:42,384 INFO L130 PetriNetUnfolder]: 11/124 cut-off events. [2023-01-28 00:07:42,385 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:07:42,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 124 events. 11/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 118 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 90. Up to 4 conditions per place. [2023-01-28 00:07:42,391 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 114 transitions, 233 flow [2023-01-28 00:07:42,394 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 114 transitions, 233 flow [2023-01-28 00:07:42,397 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:07:42,410 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 114 transitions, 233 flow [2023-01-28 00:07:42,413 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 114 transitions, 233 flow [2023-01-28 00:07:42,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 114 transitions, 233 flow [2023-01-28 00:07:42,455 INFO L130 PetriNetUnfolder]: 11/124 cut-off events. [2023-01-28 00:07:42,456 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:07:42,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 124 events. 11/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 118 event pairs, 0 based on Foata normal form. 0/110 useless extension candidates. Maximal degree in co-relation 90. Up to 4 conditions per place. [2023-01-28 00:07:42,460 INFO L119 LiptonReduction]: Number of co-enabled transitions 2028 [2023-01-28 00:07:46,424 INFO L134 LiptonReduction]: Checked pairs total: 2167 [2023-01-28 00:07:46,424 INFO L136 LiptonReduction]: Total number of compositions: 104 [2023-01-28 00:07:46,437 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:07:46,443 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:07:46,443 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:07:46,447 INFO L130 PetriNetUnfolder]: 2/13 cut-off events. [2023-01-28 00:07:46,447 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:07:46,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:07:46,448 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-01-28 00:07:46,448 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:07:46,453 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:07:46,453 INFO L85 PathProgramCache]: Analyzing trace with hash 174361225, now seen corresponding path program 1 times [2023-01-28 00:07:46,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:07:46,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906551418] [2023-01-28 00:07:46,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:07:46,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:07:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:46,570 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:07:46,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:46,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:07:46,605 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:07:46,606 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:07:46,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 00:07:46,608 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:07:46,611 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:07:46,611 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:07:46,611 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-01-28 00:07:46,679 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:07:46,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 193 transitions, 398 flow [2023-01-28 00:07:46,745 INFO L130 PetriNetUnfolder]: 21/215 cut-off events. [2023-01-28 00:07:46,745 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 00:07:46,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 215 events. 21/215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 410 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 168. Up to 6 conditions per place. [2023-01-28 00:07:46,750 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 193 transitions, 398 flow [2023-01-28 00:07:46,753 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 193 transitions, 398 flow [2023-01-28 00:07:46,753 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:07:46,753 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 193 transitions, 398 flow [2023-01-28 00:07:46,753 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 193 transitions, 398 flow [2023-01-28 00:07:46,754 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 193 transitions, 398 flow [2023-01-28 00:07:46,780 INFO L130 PetriNetUnfolder]: 21/215 cut-off events. [2023-01-28 00:07:46,780 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 00:07:46,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 225 conditions, 215 events. 21/215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 410 event pairs, 0 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 168. Up to 6 conditions per place. [2023-01-28 00:07:46,790 INFO L119 LiptonReduction]: Number of co-enabled transitions 16380 [2023-01-28 00:07:51,373 INFO L134 LiptonReduction]: Checked pairs total: 33585 [2023-01-28 00:07:51,373 INFO L136 LiptonReduction]: Total number of compositions: 155 [2023-01-28 00:07:51,376 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:07:51,377 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:07:51,377 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:07:51,381 INFO L130 PetriNetUnfolder]: 4/34 cut-off events. [2023-01-28 00:07:51,381 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 00:07:51,381 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:07:51,381 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-01-28 00:07:51,382 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:07:51,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:07:51,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1971217253, now seen corresponding path program 1 times [2023-01-28 00:07:51,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:07:51,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866674177] [2023-01-28 00:07:51,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:07:51,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:07:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:51,404 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:07:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:51,424 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:07:51,425 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:07:51,425 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:07:51,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 00:07:51,425 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:07:51,426 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:07:51,426 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:07:51,426 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-01-28 00:07:51,493 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:07:51,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 272 transitions, 565 flow [2023-01-28 00:07:51,538 INFO L130 PetriNetUnfolder]: 31/306 cut-off events. [2023-01-28 00:07:51,538 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 00:07:51,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 306 events. 31/306 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 814 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 246. Up to 8 conditions per place. [2023-01-28 00:07:51,543 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 272 transitions, 565 flow [2023-01-28 00:07:51,546 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 251 places, 272 transitions, 565 flow [2023-01-28 00:07:51,547 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:07:51,547 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 272 transitions, 565 flow [2023-01-28 00:07:51,548 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 272 transitions, 565 flow [2023-01-28 00:07:51,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 272 transitions, 565 flow [2023-01-28 00:07:51,594 INFO L130 PetriNetUnfolder]: 31/306 cut-off events. [2023-01-28 00:07:51,595 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 00:07:51,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322 conditions, 306 events. 31/306 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 814 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 246. Up to 8 conditions per place. [2023-01-28 00:07:51,624 INFO L119 LiptonReduction]: Number of co-enabled transitions 43056 [2023-01-28 00:07:57,627 INFO L134 LiptonReduction]: Checked pairs total: 78907 [2023-01-28 00:07:57,627 INFO L136 LiptonReduction]: Total number of compositions: 218 [2023-01-28 00:07:57,630 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:07:57,632 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:07:57,632 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:07:57,638 INFO L130 PetriNetUnfolder]: 8/62 cut-off events. [2023-01-28 00:07:57,638 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 00:07:57,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:07:57,638 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-01-28 00:07:57,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:07:57,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:07:57,641 INFO L85 PathProgramCache]: Analyzing trace with hash -271960691, now seen corresponding path program 1 times [2023-01-28 00:07:57,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:07:57,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118949673] [2023-01-28 00:07:57,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:07:57,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:07:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:57,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:07:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:07:57,699 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:07:57,699 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:07:57,699 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:07:57,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 00:07:57,699 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:07:57,700 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:07:57,700 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:07:57,700 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-01-28 00:07:57,754 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:07:57,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 351 transitions, 734 flow [2023-01-28 00:07:57,816 INFO L130 PetriNetUnfolder]: 41/397 cut-off events. [2023-01-28 00:07:57,817 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 00:07:57,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 397 events. 41/397 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1280 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 324. Up to 10 conditions per place. [2023-01-28 00:07:57,825 INFO L82 GeneralOperation]: Start removeDead. Operand has 323 places, 351 transitions, 734 flow [2023-01-28 00:07:57,828 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 323 places, 351 transitions, 734 flow [2023-01-28 00:07:57,829 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:07:57,829 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 323 places, 351 transitions, 734 flow [2023-01-28 00:07:57,829 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 323 places, 351 transitions, 734 flow [2023-01-28 00:07:57,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 351 transitions, 734 flow [2023-01-28 00:07:57,889 INFO L130 PetriNetUnfolder]: 41/397 cut-off events. [2023-01-28 00:07:57,889 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 00:07:57,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 420 conditions, 397 events. 41/397 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1280 event pairs, 0 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 324. Up to 10 conditions per place. [2023-01-28 00:07:57,914 INFO L119 LiptonReduction]: Number of co-enabled transitions 82056 [2023-01-28 00:08:05,079 INFO L134 LiptonReduction]: Checked pairs total: 163123 [2023-01-28 00:08:05,079 INFO L136 LiptonReduction]: Total number of compositions: 282 [2023-01-28 00:08:05,080 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:08:05,081 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:08:05,081 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:08:05,091 INFO L130 PetriNetUnfolder]: 16/101 cut-off events. [2023-01-28 00:08:05,091 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2023-01-28 00:08:05,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:08:05,091 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-01-28 00:08:05,091 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:08:05,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:08:05,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1535314522, now seen corresponding path program 1 times [2023-01-28 00:08:05,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:08:05,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210504845] [2023-01-28 00:08:05,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:08:05,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:08:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:05,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:08:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:05,167 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:08:05,168 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:08:05,168 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:08:05,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 00:08:05,168 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:08:05,169 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:08:05,169 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:08:05,169 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-01-28 00:08:05,228 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:08:05,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 395 places, 430 transitions, 905 flow [2023-01-28 00:08:05,314 INFO L130 PetriNetUnfolder]: 51/488 cut-off events. [2023-01-28 00:08:05,314 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 00:08:05,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 488 events. 51/488 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1751 event pairs, 0 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 410. Up to 12 conditions per place. [2023-01-28 00:08:05,326 INFO L82 GeneralOperation]: Start removeDead. Operand has 395 places, 430 transitions, 905 flow [2023-01-28 00:08:05,331 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 395 places, 430 transitions, 905 flow [2023-01-28 00:08:05,331 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:08:05,331 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 395 places, 430 transitions, 905 flow [2023-01-28 00:08:05,331 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 395 places, 430 transitions, 905 flow [2023-01-28 00:08:05,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 395 places, 430 transitions, 905 flow [2023-01-28 00:08:05,410 INFO L130 PetriNetUnfolder]: 51/488 cut-off events. [2023-01-28 00:08:05,410 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 00:08:05,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 519 conditions, 488 events. 51/488 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1751 event pairs, 0 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 410. Up to 12 conditions per place. [2023-01-28 00:08:05,450 INFO L119 LiptonReduction]: Number of co-enabled transitions 133380 [2023-01-28 00:08:14,233 INFO L134 LiptonReduction]: Checked pairs total: 266074 [2023-01-28 00:08:14,234 INFO L136 LiptonReduction]: Total number of compositions: 342 [2023-01-28 00:08:14,235 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:08:14,236 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:08:14,236 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:08:14,249 INFO L130 PetriNetUnfolder]: 22/128 cut-off events. [2023-01-28 00:08:14,249 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2023-01-28 00:08:14,249 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:08:14,249 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:08:14,249 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:08:14,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:08:14,250 INFO L85 PathProgramCache]: Analyzing trace with hash -821437459, now seen corresponding path program 1 times [2023-01-28 00:08:14,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:08:14,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564115126] [2023-01-28 00:08:14,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:08:14,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:08:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:14,293 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:08:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:14,322 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:08:14,322 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:08:14,323 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:08:14,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 00:08:14,323 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:08:14,323 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:08:14,323 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:08:14,323 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-01-28 00:08:14,400 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:08:14,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 467 places, 509 transitions, 1078 flow [2023-01-28 00:08:14,524 INFO L130 PetriNetUnfolder]: 61/579 cut-off events. [2023-01-28 00:08:14,525 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-28 00:08:14,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 579 events. 61/579 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2262 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 507. Up to 14 conditions per place. [2023-01-28 00:08:14,542 INFO L82 GeneralOperation]: Start removeDead. Operand has 467 places, 509 transitions, 1078 flow [2023-01-28 00:08:14,552 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 467 places, 509 transitions, 1078 flow [2023-01-28 00:08:14,553 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:08:14,553 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 467 places, 509 transitions, 1078 flow [2023-01-28 00:08:14,553 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 467 places, 509 transitions, 1078 flow [2023-01-28 00:08:14,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 467 places, 509 transitions, 1078 flow [2023-01-28 00:08:14,720 INFO L130 PetriNetUnfolder]: 61/579 cut-off events. [2023-01-28 00:08:14,723 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-28 00:08:14,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 619 conditions, 579 events. 61/579 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2262 event pairs, 0 based on Foata normal form. 0/505 useless extension candidates. Maximal degree in co-relation 507. Up to 14 conditions per place. [2023-01-28 00:08:14,780 INFO L119 LiptonReduction]: Number of co-enabled transitions 197028 [2023-01-28 00:08:24,886 INFO L134 LiptonReduction]: Checked pairs total: 408501 [2023-01-28 00:08:24,886 INFO L136 LiptonReduction]: Total number of compositions: 409 [2023-01-28 00:08:24,888 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:08:24,888 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:08:24,889 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:08:24,909 INFO L130 PetriNetUnfolder]: 28/162 cut-off events. [2023-01-28 00:08:24,909 INFO L131 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2023-01-28 00:08:24,909 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:08:24,909 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:08:24,909 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:08:24,910 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:08:24,910 INFO L85 PathProgramCache]: Analyzing trace with hash 657747243, now seen corresponding path program 1 times [2023-01-28 00:08:24,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:08:24,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617794134] [2023-01-28 00:08:24,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:08:24,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:08:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:24,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:08:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:24,979 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:08:24,979 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:08:24,979 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:08:24,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 00:08:24,980 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:08:24,980 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:08:24,980 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:08:24,980 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-01-28 00:08:25,073 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:08:25,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 539 places, 588 transitions, 1253 flow [2023-01-28 00:08:25,259 INFO L130 PetriNetUnfolder]: 71/670 cut-off events. [2023-01-28 00:08:25,260 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 00:08:25,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 670 events. 71/670 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2752 event pairs, 0 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 605. Up to 16 conditions per place. [2023-01-28 00:08:25,284 INFO L82 GeneralOperation]: Start removeDead. Operand has 539 places, 588 transitions, 1253 flow [2023-01-28 00:08:25,292 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 539 places, 588 transitions, 1253 flow [2023-01-28 00:08:25,292 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:08:25,292 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 539 places, 588 transitions, 1253 flow [2023-01-28 00:08:25,293 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 539 places, 588 transitions, 1253 flow [2023-01-28 00:08:25,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 539 places, 588 transitions, 1253 flow [2023-01-28 00:08:25,462 INFO L130 PetriNetUnfolder]: 71/670 cut-off events. [2023-01-28 00:08:25,462 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 00:08:25,481 INFO L83 FinitePrefix]: Finished finitePrefix Result has 720 conditions, 670 events. 71/670 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2752 event pairs, 0 based on Foata normal form. 0/584 useless extension candidates. Maximal degree in co-relation 605. Up to 16 conditions per place. [2023-01-28 00:08:25,607 INFO L119 LiptonReduction]: Number of co-enabled transitions 273000 [2023-01-28 00:08:37,392 INFO L134 LiptonReduction]: Checked pairs total: 601155 [2023-01-28 00:08:37,392 INFO L136 LiptonReduction]: Total number of compositions: 471 [2023-01-28 00:08:37,394 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:08:37,394 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:08:37,394 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:08:37,416 INFO L130 PetriNetUnfolder]: 36/197 cut-off events. [2023-01-28 00:08:37,416 INFO L131 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2023-01-28 00:08:37,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:08:37,417 INFO L208 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:08:37,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:08:37,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:08:37,417 INFO L85 PathProgramCache]: Analyzing trace with hash 31876957, now seen corresponding path program 1 times [2023-01-28 00:08:37,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:08:37,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880536966] [2023-01-28 00:08:37,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:08:37,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:08:37,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:37,450 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:08:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:37,480 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:08:37,480 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:08:37,481 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:08:37,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 00:08:37,481 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:08:37,482 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:08:37,482 WARN L233 ceAbstractionStarter]: 7 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:08:37,482 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 8 thread instances. [2023-01-28 00:08:37,604 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:08:37,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 611 places, 667 transitions, 1430 flow [2023-01-28 00:08:37,822 INFO L130 PetriNetUnfolder]: 81/761 cut-off events. [2023-01-28 00:08:37,822 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-28 00:08:37,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 761 events. 81/761 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3271 event pairs, 0 based on Foata normal form. 0/663 useless extension candidates. Maximal degree in co-relation 704. Up to 18 conditions per place. [2023-01-28 00:08:37,854 INFO L82 GeneralOperation]: Start removeDead. Operand has 611 places, 667 transitions, 1430 flow [2023-01-28 00:08:37,865 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 611 places, 667 transitions, 1430 flow [2023-01-28 00:08:37,865 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:08:37,866 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 611 places, 667 transitions, 1430 flow [2023-01-28 00:08:37,867 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 611 places, 667 transitions, 1430 flow [2023-01-28 00:08:37,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 611 places, 667 transitions, 1430 flow [2023-01-28 00:08:38,071 INFO L130 PetriNetUnfolder]: 81/761 cut-off events. [2023-01-28 00:08:38,071 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-28 00:08:38,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 822 conditions, 761 events. 81/761 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3271 event pairs, 0 based on Foata normal form. 0/663 useless extension candidates. Maximal degree in co-relation 704. Up to 18 conditions per place. [2023-01-28 00:08:38,159 INFO L119 LiptonReduction]: Number of co-enabled transitions 361296 [2023-01-28 00:08:51,197 INFO L134 LiptonReduction]: Checked pairs total: 812240 [2023-01-28 00:08:51,197 INFO L136 LiptonReduction]: Total number of compositions: 534 [2023-01-28 00:08:51,199 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:08:51,200 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:08:51,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:08:51,230 INFO L130 PetriNetUnfolder]: 43/234 cut-off events. [2023-01-28 00:08:51,230 INFO L131 PetriNetUnfolder]: For 112/112 co-relation queries the response was YES. [2023-01-28 00:08:51,230 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:08:51,231 INFO L208 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:08:51,231 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:08:51,231 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:08:51,231 INFO L85 PathProgramCache]: Analyzing trace with hash -277617304, now seen corresponding path program 1 times [2023-01-28 00:08:51,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:08:51,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753145456] [2023-01-28 00:08:51,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:08:51,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:08:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:51,253 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:08:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:08:51,275 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:08:51,276 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:08:51,276 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:08:51,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 00:08:51,276 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:08:51,277 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:08:51,277 WARN L233 ceAbstractionStarter]: 8 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:08:51,277 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 9 thread instances. [2023-01-28 00:08:51,427 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:08:51,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 683 places, 746 transitions, 1609 flow [2023-01-28 00:08:51,692 INFO L130 PetriNetUnfolder]: 91/852 cut-off events. [2023-01-28 00:08:51,693 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-28 00:08:51,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 852 events. 91/852 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3787 event pairs, 0 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 804. Up to 20 conditions per place. [2023-01-28 00:08:51,737 INFO L82 GeneralOperation]: Start removeDead. Operand has 683 places, 746 transitions, 1609 flow [2023-01-28 00:08:51,749 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 683 places, 746 transitions, 1609 flow [2023-01-28 00:08:51,749 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:08:51,749 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 683 places, 746 transitions, 1609 flow [2023-01-28 00:08:51,749 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 683 places, 746 transitions, 1609 flow [2023-01-28 00:08:51,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 683 places, 746 transitions, 1609 flow [2023-01-28 00:08:52,006 INFO L130 PetriNetUnfolder]: 91/852 cut-off events. [2023-01-28 00:08:52,006 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-28 00:08:52,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 852 events. 91/852 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 3787 event pairs, 0 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 804. Up to 20 conditions per place. [2023-01-28 00:08:52,158 INFO L119 LiptonReduction]: Number of co-enabled transitions 461916 [2023-01-28 00:09:07,210 INFO L134 LiptonReduction]: Checked pairs total: 929047 [2023-01-28 00:09:07,210 INFO L136 LiptonReduction]: Total number of compositions: 598 [2023-01-28 00:09:07,212 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:09:07,213 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:09:07,213 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:09:07,272 INFO L130 PetriNetUnfolder]: 50/267 cut-off events. [2023-01-28 00:09:07,272 INFO L131 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2023-01-28 00:09:07,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:09:07,273 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:09:07,273 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:09:07,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:09:07,273 INFO L85 PathProgramCache]: Analyzing trace with hash -392173397, now seen corresponding path program 1 times [2023-01-28 00:09:07,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:09:07,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077670757] [2023-01-28 00:09:07,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:09:07,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:09:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:07,306 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:09:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:07,329 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:09:07,329 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:09:07,330 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:09:07,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 00:09:07,330 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:09:07,330 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:09:07,330 WARN L233 ceAbstractionStarter]: 9 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:09:07,330 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 10 thread instances. [2023-01-28 00:09:07,449 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:07,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 755 places, 825 transitions, 1790 flow [2023-01-28 00:09:07,765 INFO L130 PetriNetUnfolder]: 101/943 cut-off events. [2023-01-28 00:09:07,765 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-28 00:09:07,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 943 events. 101/943 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4319 event pairs, 0 based on Foata normal form. 0/821 useless extension candidates. Maximal degree in co-relation 905. Up to 22 conditions per place. [2023-01-28 00:09:07,819 INFO L82 GeneralOperation]: Start removeDead. Operand has 755 places, 825 transitions, 1790 flow [2023-01-28 00:09:07,833 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 755 places, 825 transitions, 1790 flow [2023-01-28 00:09:07,834 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:09:07,834 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 755 places, 825 transitions, 1790 flow [2023-01-28 00:09:07,834 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 755 places, 825 transitions, 1790 flow [2023-01-28 00:09:07,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 755 places, 825 transitions, 1790 flow [2023-01-28 00:09:08,149 INFO L130 PetriNetUnfolder]: 101/943 cut-off events. [2023-01-28 00:09:08,149 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-28 00:09:08,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 943 events. 101/943 cut-off events. For 210/210 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4319 event pairs, 0 based on Foata normal form. 0/821 useless extension candidates. Maximal degree in co-relation 905. Up to 22 conditions per place. [2023-01-28 00:09:08,327 INFO L119 LiptonReduction]: Number of co-enabled transitions 574860 [2023-01-28 00:09:24,918 INFO L134 LiptonReduction]: Checked pairs total: 1167442 [2023-01-28 00:09:24,919 INFO L136 LiptonReduction]: Total number of compositions: 663 [2023-01-28 00:09:24,920 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:09:24,920 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:09:24,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:09:24,985 INFO L130 PetriNetUnfolder]: 57/301 cut-off events. [2023-01-28 00:09:24,985 INFO L131 PetriNetUnfolder]: For 210/210 co-relation queries the response was YES. [2023-01-28 00:09:24,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:09:24,986 INFO L208 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:09:24,986 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:09:24,986 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:09:24,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1279378807, now seen corresponding path program 1 times [2023-01-28 00:09:24,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:09:24,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590382994] [2023-01-28 00:09:24,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:09:24,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:09:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:25,010 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:09:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:25,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:09:25,034 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:09:25,035 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:09:25,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 00:09:25,035 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:09:25,035 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:09:25,035 WARN L233 ceAbstractionStarter]: 10 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:09:25,035 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 11 thread instances. [2023-01-28 00:09:25,157 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:25,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 827 places, 904 transitions, 1973 flow [2023-01-28 00:09:25,502 INFO L130 PetriNetUnfolder]: 111/1034 cut-off events. [2023-01-28 00:09:25,502 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-28 00:09:25,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 1034 events. 111/1034 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4832 event pairs, 0 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 1009. Up to 24 conditions per place. [2023-01-28 00:09:25,549 INFO L82 GeneralOperation]: Start removeDead. Operand has 827 places, 904 transitions, 1973 flow [2023-01-28 00:09:25,564 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 827 places, 904 transitions, 1973 flow [2023-01-28 00:09:25,564 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:09:25,564 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 827 places, 904 transitions, 1973 flow [2023-01-28 00:09:25,564 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 827 places, 904 transitions, 1973 flow [2023-01-28 00:09:25,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 827 places, 904 transitions, 1973 flow [2023-01-28 00:09:25,936 INFO L130 PetriNetUnfolder]: 111/1034 cut-off events. [2023-01-28 00:09:25,936 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-28 00:09:25,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 1034 events. 111/1034 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 4832 event pairs, 0 based on Foata normal form. 0/900 useless extension candidates. Maximal degree in co-relation 1009. Up to 24 conditions per place. [2023-01-28 00:09:26,159 INFO L119 LiptonReduction]: Number of co-enabled transitions 700128 [2023-01-28 00:09:44,010 INFO L134 LiptonReduction]: Checked pairs total: 1457710 [2023-01-28 00:09:44,011 INFO L136 LiptonReduction]: Total number of compositions: 726 [2023-01-28 00:09:44,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:09:44,012 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:09:44,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:09:44,061 INFO L130 PetriNetUnfolder]: 64/332 cut-off events. [2023-01-28 00:09:44,061 INFO L131 PetriNetUnfolder]: For 275/275 co-relation queries the response was YES. [2023-01-28 00:09:44,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:09:44,061 INFO L208 CegarLoopForPetriNet]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:09:44,061 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:09:44,061 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:09:44,061 INFO L85 PathProgramCache]: Analyzing trace with hash -2091456884, now seen corresponding path program 1 times [2023-01-28 00:09:44,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:09:44,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332130263] [2023-01-28 00:09:44,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:09:44,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:09:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:44,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:09:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:09:44,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:09:44,119 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:09:44,119 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:09:44,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 00:09:44,120 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:09:44,120 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:09:44,120 WARN L233 ceAbstractionStarter]: 11 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:09:44,120 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 12 thread instances. [2023-01-28 00:09:44,280 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:09:44,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 899 places, 983 transitions, 2158 flow [2023-01-28 00:09:44,736 INFO L130 PetriNetUnfolder]: 121/1125 cut-off events. [2023-01-28 00:09:44,736 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-28 00:09:44,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 1125 events. 121/1125 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5341 event pairs, 0 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 1114. Up to 26 conditions per place. [2023-01-28 00:09:44,795 INFO L82 GeneralOperation]: Start removeDead. Operand has 899 places, 983 transitions, 2158 flow [2023-01-28 00:09:44,813 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 899 places, 983 transitions, 2158 flow [2023-01-28 00:09:44,813 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:09:44,813 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 899 places, 983 transitions, 2158 flow [2023-01-28 00:09:44,813 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 899 places, 983 transitions, 2158 flow [2023-01-28 00:09:44,813 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 899 places, 983 transitions, 2158 flow [2023-01-28 00:09:45,207 INFO L130 PetriNetUnfolder]: 121/1125 cut-off events. [2023-01-28 00:09:45,208 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-28 00:09:45,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1240 conditions, 1125 events. 121/1125 cut-off events. For 352/352 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5341 event pairs, 0 based on Foata normal form. 0/979 useless extension candidates. Maximal degree in co-relation 1114. Up to 26 conditions per place. [2023-01-28 00:09:45,384 INFO L119 LiptonReduction]: Number of co-enabled transitions 837720 [2023-01-28 00:10:04,900 INFO L134 LiptonReduction]: Checked pairs total: 1744929 [2023-01-28 00:10:04,900 INFO L136 LiptonReduction]: Total number of compositions: 788 [2023-01-28 00:10:04,901 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:04,902 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:04,902 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:04,953 INFO L130 PetriNetUnfolder]: 70/367 cut-off events. [2023-01-28 00:10:04,953 INFO L131 PetriNetUnfolder]: For 352/352 co-relation queries the response was YES. [2023-01-28 00:10:04,953 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:04,953 INFO L208 CegarLoopForPetriNet]: trace histogram [13, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:10:04,953 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:04,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:04,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1844041229, now seen corresponding path program 1 times [2023-01-28 00:10:04,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:04,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951298002] [2023-01-28 00:10:04,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:04,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:04,983 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:04,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:05,015 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:05,015 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:05,015 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:05,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-28 00:10:05,015 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:05,016 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:05,016 WARN L233 ceAbstractionStarter]: 12 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:05,016 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 13 thread instances. [2023-01-28 00:10:05,155 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:05,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:10:05,607 INFO L130 PetriNetUnfolder]: 131/1216 cut-off events. [2023-01-28 00:10:05,607 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-28 00:10:05,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 1216 events. 131/1216 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5848 event pairs, 0 based on Foata normal form. 0/1058 useless extension candidates. Maximal degree in co-relation 1220. Up to 28 conditions per place. [2023-01-28 00:10:05,659 INFO L82 GeneralOperation]: Start removeDead. Operand has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:10:05,673 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:10:05,673 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:05,674 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:10:05,674 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:10:05,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 971 places, 1062 transitions, 2345 flow [2023-01-28 00:10:06,085 INFO L130 PetriNetUnfolder]: 131/1216 cut-off events. [2023-01-28 00:10:06,085 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-28 00:10:06,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 1216 events. 131/1216 cut-off events. For 442/442 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 5848 event pairs, 0 based on Foata normal form. 0/1058 useless extension candidates. Maximal degree in co-relation 1220. Up to 28 conditions per place. [2023-01-28 00:10:06,332 INFO L119 LiptonReduction]: Number of co-enabled transitions 987636 [2023-01-28 00:10:27,785 INFO L134 LiptonReduction]: Checked pairs total: 2255991 [2023-01-28 00:10:27,785 INFO L136 LiptonReduction]: Total number of compositions: 848 [2023-01-28 00:10:27,786 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:27,787 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:27,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:27,855 INFO L130 PetriNetUnfolder]: 79/407 cut-off events. [2023-01-28 00:10:27,856 INFO L131 PetriNetUnfolder]: For 442/442 co-relation queries the response was YES. [2023-01-28 00:10:27,856 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:27,856 INFO L208 CegarLoopForPetriNet]: trace histogram [14, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:10:27,856 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:27,856 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:27,856 INFO L85 PathProgramCache]: Analyzing trace with hash -268375454, now seen corresponding path program 1 times [2023-01-28 00:10:27,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:27,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493738791] [2023-01-28 00:10:27,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:27,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:27,883 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:27,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:27,913 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:27,913 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:27,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-01-28 00:10:27,913 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:27,914 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:27,914 WARN L233 ceAbstractionStarter]: 13 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:27,914 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 14 thread instances. [2023-01-28 00:10:28,063 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:28,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:10:28,535 INFO L130 PetriNetUnfolder]: 141/1307 cut-off events. [2023-01-28 00:10:28,536 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-28 00:10:28,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1455 conditions, 1307 events. 141/1307 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6367 event pairs, 0 based on Foata normal form. 0/1137 useless extension candidates. Maximal degree in co-relation 1327. Up to 30 conditions per place. [2023-01-28 00:10:28,622 INFO L82 GeneralOperation]: Start removeDead. Operand has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:10:28,641 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:10:28,641 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:28,641 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:10:28,641 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:10:28,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1043 places, 1141 transitions, 2534 flow [2023-01-28 00:10:29,137 INFO L130 PetriNetUnfolder]: 141/1307 cut-off events. [2023-01-28 00:10:29,137 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-28 00:10:29,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1455 conditions, 1307 events. 141/1307 cut-off events. For 546/546 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6367 event pairs, 0 based on Foata normal form. 0/1137 useless extension candidates. Maximal degree in co-relation 1327. Up to 30 conditions per place. [2023-01-28 00:10:29,349 INFO L119 LiptonReduction]: Number of co-enabled transitions 1149876 [2023-01-28 00:10:52,442 INFO L134 LiptonReduction]: Checked pairs total: 2617201 [2023-01-28 00:10:52,442 INFO L136 LiptonReduction]: Total number of compositions: 914 [2023-01-28 00:10:52,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:10:52,444 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:10:52,444 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:10:52,502 INFO L130 PetriNetUnfolder]: 84/437 cut-off events. [2023-01-28 00:10:52,502 INFO L131 PetriNetUnfolder]: For 546/546 co-relation queries the response was YES. [2023-01-28 00:10:52,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:10:52,502 INFO L208 CegarLoopForPetriNet]: trace histogram [15, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:10:52,502 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:10:52,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:10:52,502 INFO L85 PathProgramCache]: Analyzing trace with hash 72312746, now seen corresponding path program 1 times [2023-01-28 00:10:52,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:10:52,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169052847] [2023-01-28 00:10:52,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:10:52,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:10:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:52,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:10:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:10:52,560 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:10:52,560 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:10:52,560 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:10:52,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-01-28 00:10:52,560 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:10:52,561 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:10:52,561 WARN L233 ceAbstractionStarter]: 14 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:10:52,561 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 15 thread instances. [2023-01-28 00:10:52,740 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:10:52,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:10:53,302 INFO L130 PetriNetUnfolder]: 151/1398 cut-off events. [2023-01-28 00:10:53,303 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-28 00:10:53,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1564 conditions, 1398 events. 151/1398 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6913 event pairs, 0 based on Foata normal form. 0/1216 useless extension candidates. Maximal degree in co-relation 1435. Up to 32 conditions per place. [2023-01-28 00:10:53,374 INFO L82 GeneralOperation]: Start removeDead. Operand has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:10:53,392 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:10:53,392 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:10:53,392 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:10:53,393 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:10:53,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1115 places, 1220 transitions, 2725 flow [2023-01-28 00:10:53,894 INFO L130 PetriNetUnfolder]: 151/1398 cut-off events. [2023-01-28 00:10:53,895 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-28 00:10:53,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1564 conditions, 1398 events. 151/1398 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 6913 event pairs, 0 based on Foata normal form. 0/1216 useless extension candidates. Maximal degree in co-relation 1435. Up to 32 conditions per place. [2023-01-28 00:10:54,366 INFO L119 LiptonReduction]: Number of co-enabled transitions 1324440 [2023-01-28 00:11:18,804 INFO L134 LiptonReduction]: Checked pairs total: 2975786 [2023-01-28 00:11:18,804 INFO L136 LiptonReduction]: Total number of compositions: 974 [2023-01-28 00:11:18,806 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:11:18,806 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:11:18,806 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:11:18,889 INFO L130 PetriNetUnfolder]: 91/469 cut-off events. [2023-01-28 00:11:18,890 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2023-01-28 00:11:18,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:11:18,890 INFO L208 CegarLoopForPetriNet]: trace histogram [16, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:11:18,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:11:18,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:11:18,890 INFO L85 PathProgramCache]: Analyzing trace with hash 459114490, now seen corresponding path program 1 times [2023-01-28 00:11:18,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:11:18,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395879656] [2023-01-28 00:11:18,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:11:18,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:11:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:18,922 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:11:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:18,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:11:18,958 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:11:18,958 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:11:18,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-01-28 00:11:18,959 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:11:18,959 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:11:18,959 WARN L233 ceAbstractionStarter]: 15 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:11:18,959 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 16 thread instances. [2023-01-28 00:11:19,206 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:11:19,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:11:19,836 INFO L130 PetriNetUnfolder]: 161/1489 cut-off events. [2023-01-28 00:11:19,836 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-28 00:11:19,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 1489 events. 161/1489 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 7400 event pairs, 0 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 1544. Up to 34 conditions per place. [2023-01-28 00:11:19,937 INFO L82 GeneralOperation]: Start removeDead. Operand has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:11:19,962 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:11:19,963 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:11:19,963 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:11:19,963 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:11:19,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1187 places, 1299 transitions, 2918 flow [2023-01-28 00:11:20,664 INFO L130 PetriNetUnfolder]: 161/1489 cut-off events. [2023-01-28 00:11:20,665 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-28 00:11:20,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 1489 events. 161/1489 cut-off events. For 800/800 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 7400 event pairs, 0 based on Foata normal form. 0/1295 useless extension candidates. Maximal degree in co-relation 1544. Up to 34 conditions per place. [2023-01-28 00:11:20,910 INFO L119 LiptonReduction]: Number of co-enabled transitions 1511328 [2023-01-28 00:11:47,262 INFO L134 LiptonReduction]: Checked pairs total: 3418394 [2023-01-28 00:11:47,263 INFO L136 LiptonReduction]: Total number of compositions: 1043 [2023-01-28 00:11:47,265 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:11:47,265 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:11:47,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:11:47,344 INFO L130 PetriNetUnfolder]: 98/507 cut-off events. [2023-01-28 00:11:47,344 INFO L131 PetriNetUnfolder]: For 800/800 co-relation queries the response was YES. [2023-01-28 00:11:47,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:11:47,345 INFO L208 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:11:47,345 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:11:47,345 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:11:47,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1151175113, now seen corresponding path program 1 times [2023-01-28 00:11:47,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:11:47,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834384744] [2023-01-28 00:11:47,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:11:47,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:11:47,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:47,383 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:11:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:11:47,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:11:47,415 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:11:47,415 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:11:47,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-01-28 00:11:47,416 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:11:47,416 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:11:47,416 WARN L233 ceAbstractionStarter]: 16 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:11:47,416 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 17 thread instances. [2023-01-28 00:11:47,606 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:11:47,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:11:48,245 INFO L130 PetriNetUnfolder]: 171/1580 cut-off events. [2023-01-28 00:11:48,245 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-28 00:11:48,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1785 conditions, 1580 events. 171/1580 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7910 event pairs, 0 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 1654. Up to 36 conditions per place. [2023-01-28 00:11:48,361 INFO L82 GeneralOperation]: Start removeDead. Operand has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:11:48,389 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:11:48,389 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:11:48,389 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:11:48,389 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:11:48,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1259 places, 1378 transitions, 3113 flow [2023-01-28 00:11:49,046 INFO L130 PetriNetUnfolder]: 171/1580 cut-off events. [2023-01-28 00:11:49,047 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-28 00:11:49,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1785 conditions, 1580 events. 171/1580 cut-off events. For 952/952 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7910 event pairs, 0 based on Foata normal form. 0/1374 useless extension candidates. Maximal degree in co-relation 1654. Up to 36 conditions per place. [2023-01-28 00:11:49,395 INFO L119 LiptonReduction]: Number of co-enabled transitions 1710540 [2023-01-28 00:12:16,755 INFO L134 LiptonReduction]: Checked pairs total: 3860000 [2023-01-28 00:12:16,756 INFO L136 LiptonReduction]: Total number of compositions: 1094 [2023-01-28 00:12:16,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:12:16,757 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:12:16,758 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:12:16,860 INFO L130 PetriNetUnfolder]: 106/540 cut-off events. [2023-01-28 00:12:16,860 INFO L131 PetriNetUnfolder]: For 952/952 co-relation queries the response was YES. [2023-01-28 00:12:16,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:12:16,860 INFO L208 CegarLoopForPetriNet]: trace histogram [18, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:12:16,861 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:12:16,861 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:12:16,861 INFO L85 PathProgramCache]: Analyzing trace with hash 2044922245, now seen corresponding path program 1 times [2023-01-28 00:12:16,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:12:16,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518695417] [2023-01-28 00:12:16,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:12:16,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:12:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:16,896 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:12:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:16,931 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:12:16,931 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:12:16,931 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:12:16,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-01-28 00:12:16,932 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:12:16,932 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:12:16,932 WARN L233 ceAbstractionStarter]: 17 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:12:16,932 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 18 thread instances. [2023-01-28 00:12:17,099 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:12:17,107 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:12:17,832 INFO L130 PetriNetUnfolder]: 181/1671 cut-off events. [2023-01-28 00:12:17,832 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-28 00:12:17,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1897 conditions, 1671 events. 181/1671 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8434 event pairs, 0 based on Foata normal form. 0/1453 useless extension candidates. Maximal degree in co-relation 1765. Up to 38 conditions per place. [2023-01-28 00:12:17,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:12:17,999 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:12:17,999 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:12:17,999 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:12:17,999 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:12:18,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1331 places, 1457 transitions, 3310 flow [2023-01-28 00:12:18,737 INFO L130 PetriNetUnfolder]: 181/1671 cut-off events. [2023-01-28 00:12:18,737 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-28 00:12:18,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1897 conditions, 1671 events. 181/1671 cut-off events. For 1122/1122 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8434 event pairs, 0 based on Foata normal form. 0/1453 useless extension candidates. Maximal degree in co-relation 1765. Up to 38 conditions per place. [2023-01-28 00:12:19,197 INFO L119 LiptonReduction]: Number of co-enabled transitions 1922076 [2023-01-28 00:12:48,853 INFO L134 LiptonReduction]: Checked pairs total: 4368552 [2023-01-28 00:12:48,853 INFO L136 LiptonReduction]: Total number of compositions: 1165 [2023-01-28 00:12:48,854 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:12:48,855 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:12:48,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:12:49,056 INFO L130 PetriNetUnfolder]: 113/575 cut-off events. [2023-01-28 00:12:49,056 INFO L131 PetriNetUnfolder]: For 1122/1122 co-relation queries the response was YES. [2023-01-28 00:12:49,056 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:12:49,056 INFO L208 CegarLoopForPetriNet]: trace histogram [19, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:12:49,056 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:12:49,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:12:49,057 INFO L85 PathProgramCache]: Analyzing trace with hash -28340825, now seen corresponding path program 1 times [2023-01-28 00:12:49,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:12:49,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102281049] [2023-01-28 00:12:49,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:12:49,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:12:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:49,093 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:12:49,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:12:49,129 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:12:49,129 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:12:49,129 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:12:49,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-01-28 00:12:49,130 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:12:49,130 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:12:49,130 WARN L233 ceAbstractionStarter]: 18 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:12:49,130 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 19 thread instances. [2023-01-28 00:12:49,304 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:12:49,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:12:50,085 INFO L130 PetriNetUnfolder]: 191/1762 cut-off events. [2023-01-28 00:12:50,086 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-28 00:12:50,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2010 conditions, 1762 events. 191/1762 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8943 event pairs, 0 based on Foata normal form. 0/1532 useless extension candidates. Maximal degree in co-relation 1877. Up to 40 conditions per place. [2023-01-28 00:12:50,235 INFO L82 GeneralOperation]: Start removeDead. Operand has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:12:50,271 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:12:50,271 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:12:50,271 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:12:50,272 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:12:50,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1403 places, 1536 transitions, 3509 flow [2023-01-28 00:12:51,077 INFO L130 PetriNetUnfolder]: 191/1762 cut-off events. [2023-01-28 00:12:51,077 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-28 00:12:51,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2010 conditions, 1762 events. 191/1762 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 8943 event pairs, 0 based on Foata normal form. 0/1532 useless extension candidates. Maximal degree in co-relation 1877. Up to 40 conditions per place. [2023-01-28 00:12:51,536 INFO L119 LiptonReduction]: Number of co-enabled transitions 2145936 [2023-01-28 00:13:23,028 INFO L134 LiptonReduction]: Checked pairs total: 4909396 [2023-01-28 00:13:23,029 INFO L136 LiptonReduction]: Total number of compositions: 1227 [2023-01-28 00:13:23,030 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:13:23,030 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:13:23,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:13:23,190 INFO L130 PetriNetUnfolder]: 120/608 cut-off events. [2023-01-28 00:13:23,190 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2023-01-28 00:13:23,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:13:23,190 INFO L208 CegarLoopForPetriNet]: trace histogram [20, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:13:23,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:13:23,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:13:23,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1576653855, now seen corresponding path program 1 times [2023-01-28 00:13:23,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:13:23,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750261500] [2023-01-28 00:13:23,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:13:23,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:13:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:13:23,232 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:13:23,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:13:23,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:13:23,269 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:13:23,269 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:13:23,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-01-28 00:13:23,270 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:13:23,270 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:13:23,270 WARN L233 ceAbstractionStarter]: 19 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:13:23,270 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 20 thread instances. [2023-01-28 00:13:23,476 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:13:23,484 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:24,535 INFO L130 PetriNetUnfolder]: 201/1853 cut-off events. [2023-01-28 00:13:24,535 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-28 00:13:24,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2124 conditions, 1853 events. 201/1853 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9439 event pairs, 0 based on Foata normal form. 0/1611 useless extension candidates. Maximal degree in co-relation 1990. Up to 42 conditions per place. [2023-01-28 00:13:24,627 INFO L82 GeneralOperation]: Start removeDead. Operand has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:24,651 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:24,651 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:13:24,651 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:24,651 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:24,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1475 places, 1615 transitions, 3710 flow [2023-01-28 00:13:25,554 INFO L130 PetriNetUnfolder]: 201/1853 cut-off events. [2023-01-28 00:13:25,554 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-28 00:13:25,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2124 conditions, 1853 events. 201/1853 cut-off events. For 1520/1520 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9439 event pairs, 0 based on Foata normal form. 0/1611 useless extension candidates. Maximal degree in co-relation 1990. Up to 42 conditions per place. [2023-01-28 00:13:26,466 INFO L119 LiptonReduction]: Number of co-enabled transitions 2382120 [2023-01-28 00:14:00,072 INFO L134 LiptonReduction]: Checked pairs total: 5438150 [2023-01-28 00:14:00,072 INFO L136 LiptonReduction]: Total number of compositions: 1292 [2023-01-28 00:14:00,074 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:14:00,074 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:14:00,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:14:00,233 INFO L130 PetriNetUnfolder]: 126/642 cut-off events. [2023-01-28 00:14:00,233 INFO L131 PetriNetUnfolder]: For 1520/1520 co-relation queries the response was YES. [2023-01-28 00:14:00,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:14:00,234 INFO L208 CegarLoopForPetriNet]: trace histogram [21, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:14:00,234 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:14:00,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:14:00,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1517417906, now seen corresponding path program 1 times [2023-01-28 00:14:00,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:14:00,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166002596] [2023-01-28 00:14:00,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:14:00,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:14:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:00,282 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:14:00,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:00,323 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:14:00,323 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:14:00,323 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:14:00,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-01-28 00:14:00,324 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:14:00,324 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:14:00,324 WARN L233 ceAbstractionStarter]: 20 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:14:00,324 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 21 thread instances. [2023-01-28 00:14:00,543 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:14:00,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:14:01,610 INFO L130 PetriNetUnfolder]: 211/1944 cut-off events. [2023-01-28 00:14:01,610 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-28 00:14:01,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2239 conditions, 1944 events. 211/1944 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9979 event pairs, 0 based on Foata normal form. 0/1690 useless extension candidates. Maximal degree in co-relation 2104. Up to 44 conditions per place. [2023-01-28 00:14:01,754 INFO L82 GeneralOperation]: Start removeDead. Operand has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:14:01,959 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:14:01,959 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:14:01,959 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:14:01,959 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:14:01,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1547 places, 1694 transitions, 3913 flow [2023-01-28 00:14:03,121 INFO L130 PetriNetUnfolder]: 211/1944 cut-off events. [2023-01-28 00:14:03,121 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-28 00:14:03,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2239 conditions, 1944 events. 211/1944 cut-off events. For 1750/1750 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 9979 event pairs, 0 based on Foata normal form. 0/1690 useless extension candidates. Maximal degree in co-relation 2104. Up to 44 conditions per place. [2023-01-28 00:14:03,892 INFO L119 LiptonReduction]: Number of co-enabled transitions 2630628 [2023-01-28 00:14:38,922 INFO L134 LiptonReduction]: Checked pairs total: 6023620 [2023-01-28 00:14:38,922 INFO L136 LiptonReduction]: Total number of compositions: 1352 [2023-01-28 00:14:38,923 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:14:38,924 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:14:38,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:14:39,114 INFO L130 PetriNetUnfolder]: 133/679 cut-off events. [2023-01-28 00:14:39,114 INFO L131 PetriNetUnfolder]: For 1750/1750 co-relation queries the response was YES. [2023-01-28 00:14:39,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:14:39,114 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:14:39,114 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:14:39,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:14:39,115 INFO L85 PathProgramCache]: Analyzing trace with hash 487342399, now seen corresponding path program 1 times [2023-01-28 00:14:39,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:14:39,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108578581] [2023-01-28 00:14:39,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:14:39,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:14:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:39,155 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:14:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:14:39,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:14:39,198 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:14:39,198 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:14:39,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-01-28 00:14:39,198 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:14:39,198 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:14:39,198 WARN L233 ceAbstractionStarter]: 21 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:14:39,198 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 22 thread instances. [2023-01-28 00:14:39,414 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:14:39,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:40,803 INFO L130 PetriNetUnfolder]: 221/2035 cut-off events. [2023-01-28 00:14:40,803 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-28 00:14:40,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2355 conditions, 2035 events. 221/2035 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10464 event pairs, 0 based on Foata normal form. 0/1769 useless extension candidates. Maximal degree in co-relation 2219. Up to 46 conditions per place. [2023-01-28 00:14:40,923 INFO L82 GeneralOperation]: Start removeDead. Operand has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:40,955 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:40,956 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:14:40,956 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:40,956 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:40,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1619 places, 1773 transitions, 4118 flow [2023-01-28 00:14:42,173 INFO L130 PetriNetUnfolder]: 221/2035 cut-off events. [2023-01-28 00:14:42,173 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-28 00:14:42,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2355 conditions, 2035 events. 221/2035 cut-off events. For 2002/2002 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10464 event pairs, 0 based on Foata normal form. 0/1769 useless extension candidates. Maximal degree in co-relation 2219. Up to 46 conditions per place. [2023-01-28 00:14:42,874 INFO L119 LiptonReduction]: Number of co-enabled transitions 2891460 [2023-01-28 00:15:20,542 INFO L134 LiptonReduction]: Checked pairs total: 5961511 [2023-01-28 00:15:20,543 INFO L136 LiptonReduction]: Total number of compositions: 1418 [2023-01-28 00:15:20,544 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:15:20,544 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:15:20,544 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:15:20,697 INFO L130 PetriNetUnfolder]: 141/711 cut-off events. [2023-01-28 00:15:20,698 INFO L131 PetriNetUnfolder]: For 2002/2002 co-relation queries the response was YES. [2023-01-28 00:15:20,698 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:15:20,698 INFO L208 CegarLoopForPetriNet]: trace histogram [23, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:15:20,698 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:15:20,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:15:20,698 INFO L85 PathProgramCache]: Analyzing trace with hash -232205019, now seen corresponding path program 1 times [2023-01-28 00:15:20,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:15:20,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965308360] [2023-01-28 00:15:20,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:15:20,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:15:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:15:20,754 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:15:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:15:20,917 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:15:20,917 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:15:20,917 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:15:20,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-01-28 00:15:20,918 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:15:20,918 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:15:20,918 WARN L233 ceAbstractionStarter]: 22 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:15:20,918 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 23 thread instances. [2023-01-28 00:15:21,173 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:15:21,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:15:22,814 INFO L130 PetriNetUnfolder]: 231/2126 cut-off events. [2023-01-28 00:15:22,814 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-28 00:15:22,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2472 conditions, 2126 events. 231/2126 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10988 event pairs, 0 based on Foata normal form. 0/1848 useless extension candidates. Maximal degree in co-relation 2335. Up to 48 conditions per place. [2023-01-28 00:15:22,950 INFO L82 GeneralOperation]: Start removeDead. Operand has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:15:22,984 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:15:22,984 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:15:22,984 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:15:22,984 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:15:22,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1691 places, 1852 transitions, 4325 flow [2023-01-28 00:15:24,502 INFO L130 PetriNetUnfolder]: 231/2126 cut-off events. [2023-01-28 00:15:24,503 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-28 00:15:24,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2472 conditions, 2126 events. 231/2126 cut-off events. For 2277/2277 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 10988 event pairs, 0 based on Foata normal form. 0/1848 useless extension candidates. Maximal degree in co-relation 2335. Up to 48 conditions per place. [2023-01-28 00:15:25,585 INFO L119 LiptonReduction]: Number of co-enabled transitions 3164616 [2023-01-28 00:16:04,950 INFO L134 LiptonReduction]: Checked pairs total: 6441936 [2023-01-28 00:16:04,950 INFO L136 LiptonReduction]: Total number of compositions: 1478 [2023-01-28 00:16:04,952 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:16:04,952 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:16:04,952 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:16:05,122 INFO L130 PetriNetUnfolder]: 148/745 cut-off events. [2023-01-28 00:16:05,122 INFO L131 PetriNetUnfolder]: For 2277/2277 co-relation queries the response was YES. [2023-01-28 00:16:05,122 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:16:05,122 INFO L208 CegarLoopForPetriNet]: trace histogram [24, 23, 23, 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] [2023-01-28 00:16:05,122 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:16:05,122 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:16:05,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1237637143, now seen corresponding path program 1 times [2023-01-28 00:16:05,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:16:05,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928812972] [2023-01-28 00:16:05,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:16:05,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:16:05,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:16:05,170 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:16:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:16:05,224 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:16:05,224 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:16:05,225 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:16:05,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-01-28 00:16:05,225 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:16:05,225 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:16:05,225 WARN L233 ceAbstractionStarter]: 23 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:16:05,225 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 24 thread instances. [2023-01-28 00:16:05,527 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:16:05,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:16:07,220 INFO L130 PetriNetUnfolder]: 241/2217 cut-off events. [2023-01-28 00:16:07,221 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-28 00:16:07,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 2217 events. 241/2217 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 11496 event pairs, 0 based on Foata normal form. 0/1927 useless extension candidates. Maximal degree in co-relation 2452. Up to 50 conditions per place. [2023-01-28 00:16:07,372 INFO L82 GeneralOperation]: Start removeDead. Operand has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:16:07,409 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:16:07,409 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:16:07,409 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:16:07,409 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:16:07,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1763 places, 1931 transitions, 4534 flow [2023-01-28 00:16:08,995 INFO L130 PetriNetUnfolder]: 241/2217 cut-off events. [2023-01-28 00:16:08,996 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-28 00:16:09,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2590 conditions, 2217 events. 241/2217 cut-off events. For 2576/2576 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 11496 event pairs, 0 based on Foata normal form. 0/1927 useless extension candidates. Maximal degree in co-relation 2452. Up to 50 conditions per place. [2023-01-28 00:16:09,777 INFO L119 LiptonReduction]: Number of co-enabled transitions 3450096 [2023-01-28 00:16:50,872 INFO L134 LiptonReduction]: Checked pairs total: 7116348 [2023-01-28 00:16:50,872 INFO L136 LiptonReduction]: Total number of compositions: 1545 [2023-01-28 00:16:50,874 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:16:50,874 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:16:50,874 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:16:51,091 INFO L130 PetriNetUnfolder]: 155/780 cut-off events. [2023-01-28 00:16:51,091 INFO L131 PetriNetUnfolder]: For 2576/2576 co-relation queries the response was YES. [2023-01-28 00:16:51,091 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:16:51,091 INFO L208 CegarLoopForPetriNet]: trace histogram [25, 24, 24, 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] [2023-01-28 00:16:51,091 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:16:51,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:16:51,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1713990933, now seen corresponding path program 1 times [2023-01-28 00:16:51,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:16:51,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790403287] [2023-01-28 00:16:51,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:16:51,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:16:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:16:51,142 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:16:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:16:51,193 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:16:51,193 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:16:51,193 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:16:51,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-01-28 00:16:51,193 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:16:51,194 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:16:51,194 WARN L233 ceAbstractionStarter]: 24 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:16:51,194 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 25 thread instances. [2023-01-28 00:16:51,460 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:16:51,466 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:53,217 INFO L130 PetriNetUnfolder]: 251/2308 cut-off events. [2023-01-28 00:16:53,218 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-28 00:16:53,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2709 conditions, 2308 events. 251/2308 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 11993 event pairs, 0 based on Foata normal form. 0/2006 useless extension candidates. Maximal degree in co-relation 2570. Up to 52 conditions per place. [2023-01-28 00:16:53,394 INFO L82 GeneralOperation]: Start removeDead. Operand has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:53,436 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:53,436 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:16:53,436 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:53,436 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:53,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1835 places, 2010 transitions, 4745 flow [2023-01-28 00:16:55,101 INFO L130 PetriNetUnfolder]: 251/2308 cut-off events. [2023-01-28 00:16:55,101 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-28 00:16:55,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2709 conditions, 2308 events. 251/2308 cut-off events. For 2900/2900 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 11993 event pairs, 0 based on Foata normal form. 0/2006 useless extension candidates. Maximal degree in co-relation 2570. Up to 52 conditions per place. [2023-01-28 00:16:56,021 INFO L119 LiptonReduction]: Number of co-enabled transitions 3747900 [2023-01-28 00:17:40,442 INFO L134 LiptonReduction]: Checked pairs total: 7669208 [2023-01-28 00:17:40,443 INFO L136 LiptonReduction]: Total number of compositions: 1604 [2023-01-28 00:17:40,444 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:17:40,445 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:17:40,445 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:17:40,637 INFO L130 PetriNetUnfolder]: 162/816 cut-off events. [2023-01-28 00:17:40,637 INFO L131 PetriNetUnfolder]: For 2900/2900 co-relation queries the response was YES. [2023-01-28 00:17:40,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:17:40,638 INFO L208 CegarLoopForPetriNet]: trace histogram [26, 25, 25, 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] [2023-01-28 00:17:40,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:17:40,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:17:40,638 INFO L85 PathProgramCache]: Analyzing trace with hash 782955840, now seen corresponding path program 1 times [2023-01-28 00:17:40,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:17:40,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077422020] [2023-01-28 00:17:40,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:17:40,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:17:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:40,697 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:17:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:17:40,755 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:17:40,756 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:17:40,756 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:17:40,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-01-28 00:17:40,756 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:17:40,756 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:17:40,756 WARN L233 ceAbstractionStarter]: 25 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:17:40,756 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 26 thread instances. [2023-01-28 00:17:41,004 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:17:41,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:17:42,884 INFO L130 PetriNetUnfolder]: 261/2399 cut-off events. [2023-01-28 00:17:42,884 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-28 00:17:43,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2829 conditions, 2399 events. 261/2399 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 12492 event pairs, 0 based on Foata normal form. 0/2085 useless extension candidates. Maximal degree in co-relation 2689. Up to 54 conditions per place. [2023-01-28 00:17:43,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:17:43,218 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:17:43,218 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:17:43,218 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:17:43,218 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:17:43,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1907 places, 2089 transitions, 4958 flow [2023-01-28 00:17:44,962 INFO L130 PetriNetUnfolder]: 261/2399 cut-off events. [2023-01-28 00:17:44,962 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-28 00:17:45,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2829 conditions, 2399 events. 261/2399 cut-off events. For 3250/3250 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 12492 event pairs, 0 based on Foata normal form. 0/2085 useless extension candidates. Maximal degree in co-relation 2689. Up to 54 conditions per place. [2023-01-28 00:17:45,954 INFO L119 LiptonReduction]: Number of co-enabled transitions 4058028 [2023-01-28 00:18:32,147 INFO L134 LiptonReduction]: Checked pairs total: 9032144 [2023-01-28 00:18:32,147 INFO L136 LiptonReduction]: Total number of compositions: 1674 [2023-01-28 00:18:32,149 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 00:18:32,149 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c00cbe1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:18:32,149 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-28 00:18:32,355 INFO L130 PetriNetUnfolder]: 170/850 cut-off events. [2023-01-28 00:18:32,356 INFO L131 PetriNetUnfolder]: For 3250/3250 co-relation queries the response was YES. [2023-01-28 00:18:32,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:18:32,356 INFO L208 CegarLoopForPetriNet]: trace histogram [27, 26, 26, 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] [2023-01-28 00:18:32,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 00:18:32,356 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:18:32,356 INFO L85 PathProgramCache]: Analyzing trace with hash -376605358, now seen corresponding path program 1 times [2023-01-28 00:18:32,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:18:32,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393741925] [2023-01-28 00:18:32,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:18:32,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:18:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:32,419 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 00:18:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 00:18:32,480 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 00:18:32,480 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 00:18:32,480 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-01-28 00:18:32,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-01-28 00:18:32,481 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 00:18:32,481 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-01-28 00:18:32,481 WARN L233 ceAbstractionStarter]: 26 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 00:18:32,481 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 27 thread instances. [2023-01-28 00:18:32,739 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:18:32,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:18:35,046 INFO L130 PetriNetUnfolder]: 271/2490 cut-off events. [2023-01-28 00:18:35,047 INFO L131 PetriNetUnfolder]: For 3627/3627 co-relation queries the response was YES. [2023-01-28 00:18:35,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2950 conditions, 2490 events. 271/2490 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 13032 event pairs, 0 based on Foata normal form. 0/2164 useless extension candidates. Maximal degree in co-relation 2809. Up to 56 conditions per place. [2023-01-28 00:18:35,238 INFO L82 GeneralOperation]: Start removeDead. Operand has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:18:35,306 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:18:35,306 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:18:35,306 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:18:35,306 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:18:35,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1979 places, 2168 transitions, 5173 flow [2023-01-28 00:18:37,480 INFO L130 PetriNetUnfolder]: 271/2490 cut-off events. [2023-01-28 00:18:37,480 INFO L131 PetriNetUnfolder]: For 3627/3627 co-relation queries the response was YES. [2023-01-28 00:18:37,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2950 conditions, 2490 events. 271/2490 cut-off events. For 3627/3627 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 13032 event pairs, 0 based on Foata normal form. 0/2164 useless extension candidates. Maximal degree in co-relation 2809. Up to 56 conditions per place. [2023-01-28 00:18:38,461 INFO L119 LiptonReduction]: Number of co-enabled transitions 4380480 Received shutdown request... [2023-01-28 00:18:53,754 WARN L238 SmtUtils]: Removed 2 from assertion stack [2023-01-28 00:18:53,754 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-01-28 00:18:53,755 INFO L158 Benchmark]: Toolchain (without parser) took 672933.66ms. Allocated memory was 352.3MB in the beginning and 7.5GB in the end (delta: 7.2GB). Free memory was 311.1MB in the beginning and 4.6GB in the end (delta: -4.3GB). Peak memory consumption was 3.0GB. Max. memory is 16.0GB. [2023-01-28 00:18:53,755 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory is still 213.7MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:18:53,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.25ms. Allocated memory is still 352.3MB. Free memory was 311.1MB in the beginning and 290.8MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 00:18:53,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.01ms. Allocated memory is still 352.3MB. Free memory was 290.8MB in the beginning and 288.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-01-28 00:18:53,756 INFO L158 Benchmark]: Boogie Preprocessor took 40.55ms. Allocated memory is still 352.3MB. Free memory was 288.3MB in the beginning and 286.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:18:53,756 INFO L158 Benchmark]: RCFGBuilder took 798.30ms. Allocated memory is still 352.3MB. Free memory was 286.2MB in the beginning and 320.1MB in the end (delta: -33.8MB). Peak memory consumption was 38.2MB. Max. memory is 16.0GB. [2023-01-28 00:18:53,756 INFO L158 Benchmark]: TraceAbstraction took 671554.38ms. Allocated memory was 352.3MB in the beginning and 7.5GB in the end (delta: 7.2GB). Free memory was 319.7MB in the beginning and 4.6GB in the end (delta: -4.2GB). Peak memory consumption was 3.0GB. Max. memory is 16.0GB. [2023-01-28 00:18:53,757 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 255.9MB. Free memory is still 213.7MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 454.25ms. Allocated memory is still 352.3MB. Free memory was 311.1MB in the beginning and 290.8MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 68.01ms. Allocated memory is still 352.3MB. Free memory was 290.8MB in the beginning and 288.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 40.55ms. Allocated memory is still 352.3MB. Free memory was 288.3MB in the beginning and 286.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 798.30ms. Allocated memory is still 352.3MB. Free memory was 286.2MB in the beginning and 320.1MB in the end (delta: -33.8MB). Peak memory consumption was 38.2MB. Max. memory is 16.0GB. * TraceAbstraction took 671554.38ms. Allocated memory was 352.3MB in the beginning and 7.5GB in the end (delta: 7.2GB). Free memory was 319.7MB in the beginning and 4.6GB in the end (delta: -4.2GB). Peak memory consumption was 3.0GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 107 PlacesBefore, 24 PlacesAfterwards, 114 TransitionsBefore, 28 TransitionsAfterwards, 2028 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 62 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 104 TotalNumberOfCompositions, 2167 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1862, independent: 1748, independent conditional: 0, independent unconditional: 1748, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1107, independent: 1072, independent conditional: 0, independent unconditional: 1072, dependent: 35, dependent conditional: 0, dependent unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1862, independent: 676, independent conditional: 0, independent unconditional: 676, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 1107, unknown conditional: 0, unknown unconditional: 1107] , Statistics on independence cache: Total cache size (in pairs): 60, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6s, 179 PlacesBefore, 57 PlacesAfterwards, 193 TransitionsBefore, 66 TransitionsAfterwards, 16380 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 98 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 31 ConcurrentYvCompositions, 5 ChoiceCompositions, 155 TotalNumberOfCompositions, 33585 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17106, independent: 16608, independent conditional: 0, independent unconditional: 16608, dependent: 498, dependent conditional: 0, dependent unconditional: 498, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 8710, independent: 8626, independent conditional: 0, independent unconditional: 8626, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 17106, independent: 7982, independent conditional: 0, independent unconditional: 7982, dependent: 414, dependent conditional: 0, dependent unconditional: 414, unknown: 8710, unknown conditional: 0, unknown unconditional: 8710] , Statistics on independence cache: Total cache size (in pairs): 581, Positive cache size: 543, Positive conditional cache size: 0, Positive unconditional cache size: 543, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.1s, 251 PlacesBefore, 82 PlacesAfterwards, 272 TransitionsBefore, 96 TransitionsAfterwards, 43056 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 141 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 49 ConcurrentYvCompositions, 7 ChoiceCompositions, 218 TotalNumberOfCompositions, 78907 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 40460, independent: 39863, independent conditional: 0, independent unconditional: 39863, dependent: 597, dependent conditional: 0, dependent unconditional: 597, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 22473, independent: 22323, independent conditional: 0, independent unconditional: 22323, dependent: 150, dependent conditional: 0, dependent unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 40460, independent: 17540, independent conditional: 0, independent unconditional: 17540, dependent: 447, dependent conditional: 0, dependent unconditional: 447, unknown: 22473, unknown conditional: 0, unknown unconditional: 22473] , Statistics on independence cache: Total cache size (in pairs): 1432, Positive cache size: 1371, Positive conditional cache size: 0, Positive unconditional cache size: 1371, Negative cache size: 61, Negative conditional cache size: 0, Negative unconditional cache size: 61, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2s, 323 PlacesBefore, 109 PlacesAfterwards, 351 TransitionsBefore, 128 TransitionsAfterwards, 82056 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 186 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 66 ConcurrentYvCompositions, 9 ChoiceCompositions, 282 TotalNumberOfCompositions, 163123 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 67650, independent: 66806, independent conditional: 0, independent unconditional: 66806, dependent: 844, dependent conditional: 0, dependent unconditional: 844, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 41876, independent: 41693, independent conditional: 0, independent unconditional: 41693, dependent: 183, dependent conditional: 0, dependent unconditional: 183, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 67650, independent: 25113, independent conditional: 0, independent unconditional: 25113, dependent: 661, dependent conditional: 0, dependent unconditional: 661, unknown: 41876, unknown conditional: 0, unknown unconditional: 41876] , Statistics on independence cache: Total cache size (in pairs): 1501, Positive cache size: 1419, Positive conditional cache size: 0, Positive unconditional cache size: 1419, Negative cache size: 82, Negative conditional cache size: 0, Negative unconditional cache size: 82, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.9s, 395 PlacesBefore, 132 PlacesAfterwards, 430 TransitionsBefore, 156 TransitionsAfterwards, 133380 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 235 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 75 ConcurrentYvCompositions, 11 ChoiceCompositions, 342 TotalNumberOfCompositions, 266074 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 119031, independent: 117969, independent conditional: 0, independent unconditional: 117969, dependent: 1062, dependent conditional: 0, dependent unconditional: 1062, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 68894, independent: 68657, independent conditional: 0, independent unconditional: 68657, dependent: 237, dependent conditional: 0, dependent unconditional: 237, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 119031, independent: 49312, independent conditional: 0, independent unconditional: 49312, dependent: 825, dependent conditional: 0, dependent unconditional: 825, unknown: 68894, unknown conditional: 0, unknown unconditional: 68894] , Statistics on independence cache: Total cache size (in pairs): 3926, Positive cache size: 3813, Positive conditional cache size: 0, Positive unconditional cache size: 3813, Negative cache size: 113, Negative conditional cache size: 0, Negative unconditional cache size: 113, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.3s, 467 PlacesBefore, 158 PlacesAfterwards, 509 TransitionsBefore, 187 TransitionsAfterwards, 197028 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 277 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 98 ConcurrentYvCompositions, 13 ChoiceCompositions, 409 TotalNumberOfCompositions, 408501 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 170237, independent: 168939, independent conditional: 0, independent unconditional: 168939, dependent: 1298, dependent conditional: 0, dependent unconditional: 1298, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 102255, independent: 101935, independent conditional: 0, independent unconditional: 101935, dependent: 320, dependent conditional: 0, dependent unconditional: 320, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 170237, independent: 67004, independent conditional: 0, independent unconditional: 67004, dependent: 978, dependent conditional: 0, dependent unconditional: 978, unknown: 102255, unknown conditional: 0, unknown unconditional: 102255] , Statistics on independence cache: Total cache size (in pairs): 5413, Positive cache size: 5283, Positive conditional cache size: 0, Positive unconditional cache size: 5283, Negative cache size: 130, Negative conditional cache size: 0, Negative unconditional cache size: 130, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.1s, 539 PlacesBefore, 182 PlacesAfterwards, 588 TransitionsBefore, 216 TransitionsAfterwards, 273000 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 328 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 107 ConcurrentYvCompositions, 15 ChoiceCompositions, 471 TotalNumberOfCompositions, 601155 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 255944, independent: 254194, independent conditional: 0, independent unconditional: 254194, dependent: 1750, dependent conditional: 0, dependent unconditional: 1750, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 140512, independent: 140155, independent conditional: 0, independent unconditional: 140155, dependent: 357, dependent conditional: 0, dependent unconditional: 357, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 255944, independent: 114039, independent conditional: 0, independent unconditional: 114039, dependent: 1393, dependent conditional: 0, dependent unconditional: 1393, unknown: 140512, unknown conditional: 0, unknown unconditional: 140512] , Statistics on independence cache: Total cache size (in pairs): 7374, Positive cache size: 7226, Positive conditional cache size: 0, Positive unconditional cache size: 7226, Negative cache size: 148, Negative conditional cache size: 0, Negative unconditional cache size: 148, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.3s, 611 PlacesBefore, 209 PlacesAfterwards, 667 TransitionsBefore, 248 TransitionsAfterwards, 361296 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 371 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 125 ConcurrentYvCompositions, 17 ChoiceCompositions, 534 TotalNumberOfCompositions, 812240 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 371076, independent: 369044, independent conditional: 0, independent unconditional: 369044, dependent: 2032, dependent conditional: 0, dependent unconditional: 2032, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 188435, independent: 188069, independent conditional: 0, independent unconditional: 188069, dependent: 366, dependent conditional: 0, dependent unconditional: 366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 371076, independent: 180975, independent conditional: 0, independent unconditional: 180975, dependent: 1666, dependent conditional: 0, dependent unconditional: 1666, unknown: 188435, unknown conditional: 0, unknown unconditional: 188435] , Statistics on independence cache: Total cache size (in pairs): 10489, Positive cache size: 10309, Positive conditional cache size: 0, Positive unconditional cache size: 10309, Negative cache size: 180, Negative conditional cache size: 0, Negative unconditional cache size: 180, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.5s, 683 PlacesBefore, 234 PlacesAfterwards, 746 TransitionsBefore, 278 TransitionsAfterwards, 461916 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 413 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 145 ConcurrentYvCompositions, 19 ChoiceCompositions, 598 TotalNumberOfCompositions, 929047 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 328600, independent: 326715, independent conditional: 0, independent unconditional: 326715, dependent: 1885, dependent conditional: 0, dependent unconditional: 1885, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 229820, independent: 229385, independent conditional: 0, independent unconditional: 229385, dependent: 435, dependent conditional: 0, dependent unconditional: 435, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328600, independent: 97330, independent conditional: 0, independent unconditional: 97330, dependent: 1450, dependent conditional: 0, dependent unconditional: 1450, unknown: 229820, unknown conditional: 0, unknown unconditional: 229820] , Statistics on independence cache: Total cache size (in pairs): 5890, Positive cache size: 5653, Positive conditional cache size: 0, Positive unconditional cache size: 5653, Negative cache size: 237, Negative conditional cache size: 0, Negative unconditional cache size: 237, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 17.1s, 755 PlacesBefore, 259 PlacesAfterwards, 825 TransitionsBefore, 308 TransitionsAfterwards, 574860 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 469 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 152 ConcurrentYvCompositions, 21 ChoiceCompositions, 663 TotalNumberOfCompositions, 1167442 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 408681, independent: 406564, independent conditional: 0, independent unconditional: 406564, dependent: 2117, dependent conditional: 0, dependent unconditional: 2117, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 286548, independent: 286087, independent conditional: 0, independent unconditional: 286087, dependent: 461, dependent conditional: 0, dependent unconditional: 461, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 408681, independent: 120477, independent conditional: 0, independent unconditional: 120477, dependent: 1656, dependent conditional: 0, dependent unconditional: 1656, unknown: 286548, unknown conditional: 0, unknown unconditional: 286548] , Statistics on independence cache: Total cache size (in pairs): 6246, Positive cache size: 6040, Positive conditional cache size: 0, Positive unconditional cache size: 6040, Negative cache size: 206, Negative conditional cache size: 0, Negative unconditional cache size: 206, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 18.4s, 827 PlacesBefore, 282 PlacesAfterwards, 904 TransitionsBefore, 336 TransitionsAfterwards, 700128 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 521 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 161 ConcurrentYvCompositions, 23 ChoiceCompositions, 726 TotalNumberOfCompositions, 1457710 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 496854, independent: 494488, independent conditional: 0, independent unconditional: 494488, dependent: 2366, dependent conditional: 0, dependent unconditional: 2366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 345217, independent: 344662, independent conditional: 0, independent unconditional: 344662, dependent: 555, dependent conditional: 0, dependent unconditional: 555, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 496854, independent: 149826, independent conditional: 0, independent unconditional: 149826, dependent: 1811, dependent conditional: 0, dependent unconditional: 1811, unknown: 345217, unknown conditional: 0, unknown unconditional: 345217] , Statistics on independence cache: Total cache size (in pairs): 4736, Positive cache size: 4459, Positive conditional cache size: 0, Positive unconditional cache size: 4459, Negative cache size: 277, Negative conditional cache size: 0, Negative unconditional cache size: 277, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.1s, 899 PlacesBefore, 309 PlacesAfterwards, 983 TransitionsBefore, 368 TransitionsAfterwards, 837720 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 553 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 189 ConcurrentYvCompositions, 25 ChoiceCompositions, 788 TotalNumberOfCompositions, 1744929 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 608992, independent: 606412, independent conditional: 0, independent unconditional: 606412, dependent: 2580, dependent conditional: 0, dependent unconditional: 2580, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 422154, independent: 421613, independent conditional: 0, independent unconditional: 421613, dependent: 541, dependent conditional: 0, dependent unconditional: 541, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 608992, independent: 184799, independent conditional: 0, independent unconditional: 184799, dependent: 2039, dependent conditional: 0, dependent unconditional: 2039, unknown: 422154, unknown conditional: 0, unknown unconditional: 422154] , Statistics on independence cache: Total cache size (in pairs): 9936, Positive cache size: 9688, Positive conditional cache size: 0, Positive unconditional cache size: 9688, Negative cache size: 248, Negative conditional cache size: 0, Negative unconditional cache size: 248, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 22.1s, 971 PlacesBefore, 336 PlacesAfterwards, 1062 TransitionsBefore, 400 TransitionsAfterwards, 987636 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 602 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 198 ConcurrentYvCompositions, 27 ChoiceCompositions, 848 TotalNumberOfCompositions, 2255991 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1043298, independent: 1039985, independent conditional: 0, independent unconditional: 1039985, dependent: 3313, dependent conditional: 0, dependent unconditional: 3313, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 516508, independent: 515973, independent conditional: 0, independent unconditional: 515973, dependent: 535, dependent conditional: 0, dependent unconditional: 535, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1043298, independent: 524012, independent conditional: 0, independent unconditional: 524012, dependent: 2778, dependent conditional: 0, dependent unconditional: 2778, unknown: 516508, unknown conditional: 0, unknown unconditional: 516508] , Statistics on independence cache: Total cache size (in pairs): 31596, Positive cache size: 31324, Positive conditional cache size: 0, Positive unconditional cache size: 31324, Negative cache size: 272, Negative conditional cache size: 0, Negative unconditional cache size: 272, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.8s, 1043 PlacesBefore, 362 PlacesAfterwards, 1141 TransitionsBefore, 431 TransitionsAfterwards, 1149876 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 648 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 216 ConcurrentYvCompositions, 29 ChoiceCompositions, 914 TotalNumberOfCompositions, 2617201 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1006326, independent: 1002790, independent conditional: 0, independent unconditional: 1002790, dependent: 3536, dependent conditional: 0, dependent unconditional: 3536, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 586609, independent: 585980, independent conditional: 0, independent unconditional: 585980, dependent: 629, dependent conditional: 0, dependent unconditional: 629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1006326, independent: 416810, independent conditional: 0, independent unconditional: 416810, dependent: 2907, dependent conditional: 0, dependent unconditional: 2907, unknown: 586609, unknown conditional: 0, unknown unconditional: 586609] , Statistics on independence cache: Total cache size (in pairs): 23886, Positive cache size: 23580, Positive conditional cache size: 0, Positive unconditional cache size: 23580, Negative cache size: 306, Negative conditional cache size: 0, Negative unconditional cache size: 306, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.4s, 1115 PlacesBefore, 384 PlacesAfterwards, 1220 TransitionsBefore, 458 TransitionsAfterwards, 1324440 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 691 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 231 ConcurrentYvCompositions, 31 ChoiceCompositions, 974 TotalNumberOfCompositions, 2975786 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 936499, independent: 932727, independent conditional: 0, independent unconditional: 932727, dependent: 3772, dependent conditional: 0, dependent unconditional: 3772, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 654467, independent: 653636, independent conditional: 0, independent unconditional: 653636, dependent: 831, dependent conditional: 0, dependent unconditional: 831, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 936499, independent: 279091, independent conditional: 0, independent unconditional: 279091, dependent: 2941, dependent conditional: 0, dependent unconditional: 2941, unknown: 654467, unknown conditional: 0, unknown unconditional: 654467] , Statistics on independence cache: Total cache size (in pairs): 8504, Positive cache size: 8115, Positive conditional cache size: 0, Positive unconditional cache size: 8115, Negative cache size: 389, Negative conditional cache size: 0, Negative unconditional cache size: 389, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.3s, 1187 PlacesBefore, 411 PlacesAfterwards, 1299 TransitionsBefore, 490 TransitionsAfterwards, 1511328 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 737 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 252 ConcurrentYvCompositions, 33 ChoiceCompositions, 1043 TotalNumberOfCompositions, 3418394 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1081493, independent: 1077484, independent conditional: 0, independent unconditional: 1077484, dependent: 4009, dependent conditional: 0, dependent unconditional: 4009, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 754071, independent: 753358, independent conditional: 0, independent unconditional: 753358, dependent: 713, dependent conditional: 0, dependent unconditional: 713, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1081493, independent: 324126, independent conditional: 0, independent unconditional: 324126, dependent: 3296, dependent conditional: 0, dependent unconditional: 3296, unknown: 754071, unknown conditional: 0, unknown unconditional: 754071] , Statistics on independence cache: Total cache size (in pairs): 12595, Positive cache size: 12261, Positive conditional cache size: 0, Positive unconditional cache size: 12261, Negative cache size: 334, Negative conditional cache size: 0, Negative unconditional cache size: 334, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 28.4s, 1259 PlacesBefore, 435 PlacesAfterwards, 1378 TransitionsBefore, 519 TransitionsAfterwards, 1710540 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 780 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 258 ConcurrentYvCompositions, 35 ChoiceCompositions, 1094 TotalNumberOfCompositions, 3860000 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1209719, independent: 1205420, independent conditional: 0, independent unconditional: 1205420, dependent: 4299, dependent conditional: 0, dependent unconditional: 4299, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 842621, independent: 841510, independent conditional: 0, independent unconditional: 841510, dependent: 1111, dependent conditional: 0, dependent unconditional: 1111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1209719, independent: 363910, independent conditional: 0, independent unconditional: 363910, dependent: 3188, dependent conditional: 0, dependent unconditional: 3188, unknown: 842621, unknown conditional: 0, unknown unconditional: 842621] , Statistics on independence cache: Total cache size (in pairs): 13044, Positive cache size: 12394, Positive conditional cache size: 0, Positive unconditional cache size: 12394, Negative cache size: 650, Negative conditional cache size: 0, Negative unconditional cache size: 650, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.9s, 1331 PlacesBefore, 460 PlacesAfterwards, 1457 TransitionsBefore, 549 TransitionsAfterwards, 1922076 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 822 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 285 ConcurrentYvCompositions, 37 ChoiceCompositions, 1165 TotalNumberOfCompositions, 4368552 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1371150, independent: 1366584, independent conditional: 0, independent unconditional: 1366584, dependent: 4566, dependent conditional: 0, dependent unconditional: 4566, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 954516, independent: 953668, independent conditional: 0, independent unconditional: 953668, dependent: 848, dependent conditional: 0, dependent unconditional: 848, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1371150, independent: 412916, independent conditional: 0, independent unconditional: 412916, dependent: 3718, dependent conditional: 0, dependent unconditional: 3718, unknown: 954516, unknown conditional: 0, unknown unconditional: 954516] , Statistics on independence cache: Total cache size (in pairs): 15525, Positive cache size: 15150, Positive conditional cache size: 0, Positive unconditional cache size: 15150, Negative cache size: 375, Negative conditional cache size: 0, Negative unconditional cache size: 375, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.8s, 1403 PlacesBefore, 486 PlacesAfterwards, 1536 TransitionsBefore, 580 TransitionsAfterwards, 2145936 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 866 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 301 ConcurrentYvCompositions, 39 ChoiceCompositions, 1227 TotalNumberOfCompositions, 4909396 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1533663, independent: 1528833, independent conditional: 0, independent unconditional: 1528833, dependent: 4830, dependent conditional: 0, dependent unconditional: 4830, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1066939, independent: 1066086, independent conditional: 0, independent unconditional: 1066086, dependent: 853, dependent conditional: 0, dependent unconditional: 853, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1533663, independent: 462747, independent conditional: 0, independent unconditional: 462747, dependent: 3977, dependent conditional: 0, dependent unconditional: 3977, unknown: 1066939, unknown conditional: 0, unknown unconditional: 1066939] , Statistics on independence cache: Total cache size (in pairs): 18759, Positive cache size: 18362, Positive conditional cache size: 0, Positive unconditional cache size: 18362, Negative cache size: 397, Negative conditional cache size: 0, Negative unconditional cache size: 397, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 35.4s, 1475 PlacesBefore, 512 PlacesAfterwards, 1615 TransitionsBefore, 611 TransitionsAfterwards, 2382120 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 923 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 307 ConcurrentYvCompositions, 41 ChoiceCompositions, 1292 TotalNumberOfCompositions, 5438150 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1979618, independent: 1974553, independent conditional: 0, independent unconditional: 1974553, dependent: 5065, dependent conditional: 0, dependent unconditional: 5065, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1211333, independent: 1210201, independent conditional: 0, independent unconditional: 1210201, dependent: 1132, dependent conditional: 0, dependent unconditional: 1132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1979618, independent: 764352, independent conditional: 0, independent unconditional: 764352, dependent: 3933, dependent conditional: 0, dependent unconditional: 3933, unknown: 1211333, unknown conditional: 0, unknown unconditional: 1211333] , Statistics on independence cache: Total cache size (in pairs): 46643, Positive cache size: 46102, Positive conditional cache size: 0, Positive unconditional cache size: 46102, Negative cache size: 541, Negative conditional cache size: 0, Negative unconditional cache size: 541, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.0s, 1547 PlacesBefore, 539 PlacesAfterwards, 1694 TransitionsBefore, 643 TransitionsAfterwards, 2630628 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 963 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 325 ConcurrentYvCompositions, 43 ChoiceCompositions, 1352 TotalNumberOfCompositions, 6023620 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1869483, independent: 1864134, independent conditional: 0, independent unconditional: 1864134, dependent: 5349, dependent conditional: 0, dependent unconditional: 5349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1301424, independent: 1300446, independent conditional: 0, independent unconditional: 1300446, dependent: 978, dependent conditional: 0, dependent unconditional: 978, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1869483, independent: 563688, independent conditional: 0, independent unconditional: 563688, dependent: 4371, dependent conditional: 0, dependent unconditional: 4371, unknown: 1301424, unknown conditional: 0, unknown unconditional: 1301424] , Statistics on independence cache: Total cache size (in pairs): 22128, Positive cache size: 21686, Positive conditional cache size: 0, Positive unconditional cache size: 21686, Negative cache size: 442, Negative conditional cache size: 0, Negative unconditional cache size: 442, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.6s, 1619 PlacesBefore, 562 PlacesAfterwards, 1773 TransitionsBefore, 671 TransitionsAfterwards, 2891460 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1007 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 345 ConcurrentYvCompositions, 45 ChoiceCompositions, 1418 TotalNumberOfCompositions, 5961511 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1977376, independent: 1972699, independent conditional: 0, independent unconditional: 1972699, dependent: 4677, dependent conditional: 0, dependent unconditional: 4677, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1437402, independent: 1436305, independent conditional: 0, independent unconditional: 1436305, dependent: 1097, dependent conditional: 0, dependent unconditional: 1097, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1977376, independent: 536394, independent conditional: 0, independent unconditional: 536394, dependent: 3580, dependent conditional: 0, dependent unconditional: 3580, unknown: 1437402, unknown conditional: 0, unknown unconditional: 1437402] , Statistics on independence cache: Total cache size (in pairs): 20544, Positive cache size: 20084, Positive conditional cache size: 0, Positive unconditional cache size: 20084, Negative cache size: 460, Negative conditional cache size: 0, Negative unconditional cache size: 460, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 42.0s, 1691 PlacesBefore, 585 PlacesAfterwards, 1852 TransitionsBefore, 699 TransitionsAfterwards, 3164616 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1056 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 354 ConcurrentYvCompositions, 47 ChoiceCompositions, 1478 TotalNumberOfCompositions, 6441936 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2178584, independent: 2173741, independent conditional: 0, independent unconditional: 2173741, dependent: 4843, dependent conditional: 0, dependent unconditional: 4843, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1574360, independent: 1573395, independent conditional: 0, independent unconditional: 1573395, dependent: 965, dependent conditional: 0, dependent unconditional: 965, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2178584, independent: 600346, independent conditional: 0, independent unconditional: 600346, dependent: 3878, dependent conditional: 0, dependent unconditional: 3878, unknown: 1574360, unknown conditional: 0, unknown unconditional: 1574360] , Statistics on independence cache: Total cache size (in pairs): 31974, Positive cache size: 31494, Positive conditional cache size: 0, Positive unconditional cache size: 31494, Negative cache size: 480, Negative conditional cache size: 0, Negative unconditional cache size: 480, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 43.5s, 1763 PlacesBefore, 610 PlacesAfterwards, 1931 TransitionsBefore, 729 TransitionsAfterwards, 3450096 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1112 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 363 ConcurrentYvCompositions, 49 ChoiceCompositions, 1545 TotalNumberOfCompositions, 7116348 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3255295, independent: 3250185, independent conditional: 0, independent unconditional: 3250185, dependent: 5110, dependent conditional: 0, dependent unconditional: 5110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1793678, independent: 1792473, independent conditional: 0, independent unconditional: 1792473, dependent: 1205, dependent conditional: 0, dependent unconditional: 1205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3255295, independent: 1457712, independent conditional: 0, independent unconditional: 1457712, dependent: 3905, dependent conditional: 0, dependent unconditional: 3905, unknown: 1793678, unknown conditional: 0, unknown unconditional: 1793678] , Statistics on independence cache: Total cache size (in pairs): 102175, Positive cache size: 101651, Positive conditional cache size: 0, Positive unconditional cache size: 101651, Negative cache size: 524, Negative conditional cache size: 0, Negative unconditional cache size: 524, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47.0s, 1835 PlacesBefore, 637 PlacesAfterwards, 2010 TransitionsBefore, 761 TransitionsAfterwards, 3747900 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 1144 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 388 ConcurrentYvCompositions, 51 ChoiceCompositions, 1604 TotalNumberOfCompositions, 7669208 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3292501, independent: 3287238, independent conditional: 0, independent unconditional: 3287238, dependent: 5263, dependent conditional: 0, dependent unconditional: 5263, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1944403, independent: 1943259, independent conditional: 0, independent unconditional: 1943259, dependent: 1144, dependent conditional: 0, dependent unconditional: 1144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3292501, independent: 1343979, independent conditional: 0, independent unconditional: 1343979, dependent: 4119, dependent conditional: 0, dependent unconditional: 4119, unknown: 1944403, unknown conditional: 0, unknown unconditional: 1944403] , Statistics on independence cache: Total cache size (in pairs): 98452, Positive cache size: 97903, Positive conditional cache size: 0, Positive unconditional cache size: 97903, Negative cache size: 549, Negative conditional cache size: 0, Negative unconditional cache size: 549, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.9s, 1907 PlacesBefore, 661 PlacesAfterwards, 2089 TransitionsBefore, 790 TransitionsAfterwards, 4058028 CoEnabledTransitionPairs, 6 FixpointIterations, 21 TrivialSequentialCompositions, 1190 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 410 ConcurrentYvCompositions, 53 ChoiceCompositions, 1674 TotalNumberOfCompositions, 9032144 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3639342, independent: 3632892, independent conditional: 0, independent unconditional: 3632892, dependent: 6450, dependent conditional: 0, dependent unconditional: 6450, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2097690, independent: 2096081, independent conditional: 0, independent unconditional: 2096081, dependent: 1609, dependent conditional: 0, dependent unconditional: 1609, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3639342, independent: 1536811, independent conditional: 0, independent unconditional: 1536811, dependent: 4841, dependent conditional: 0, dependent unconditional: 4841, unknown: 2097690, unknown conditional: 0, unknown unconditional: 2097690] , Statistics on independence cache: Total cache size (in pairs): 103634, Positive cache size: 102988, Positive conditional cache size: 0, Positive unconditional cache size: 102988, Negative cache size: 646, Negative conditional cache size: 0, Negative unconditional cache size: 646, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while CegarLoopFactory was constructing initial abstraction,while PetriNetLargeBlockEncoding was applying PetriNetLargeBlockEncoding to Petri net that has 1979 places, 2168 transitions, 5173 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 1979 places, 2168 transitions, 5173 flow and 4380480 co-enabled transitions pairs.,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 1ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown