/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.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.data.races.in.concurrent.programs true -i ../../../trunk/examples/svcomp/pthread-ext/04_incdec_cas.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-25 07:56:48,036 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-25 07:56:48,101 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-25 07:56:48,105 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-25 07:56:48,106 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-25 07:56:48,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-25 07:56:48,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-25 07:56:48,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-25 07:56:48,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-25 07:56:48,138 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-25 07:56:48,138 INFO L153 SettingsManager]: * Use SBE=true [2023-08-25 07:56:48,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-25 07:56:48,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-25 07:56:48,139 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-25 07:56:48,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-25 07:56:48,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-25 07:56:48,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-25 07:56:48,140 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-25 07:56:48,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-25 07:56:48,140 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-25 07:56:48,140 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-25 07:56:48,141 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-25 07:56:48,141 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-25 07:56:48,141 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-25 07:56:48,141 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-25 07:56:48,142 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-25 07:56:48,142 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-25 07:56:48,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:56:48,142 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-25 07:56:48,142 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-25 07:56:48,143 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-25 07:56:48,143 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-25 07:56:48,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-25 07:56:48,143 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-25 07:56:48,143 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-25 07:56:48,144 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of data races in concurrent programs -> true [2023-08-25 07:56:48,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-25 07:56:48,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-25 07:56:48,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-25 07:56:48,392 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-25 07:56:48,393 INFO L274 PluginConnector]: CDTParser initialized [2023-08-25 07:56:48,393 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/04_incdec_cas.i [2023-08-25 07:56:49,411 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-25 07:56:49,619 INFO L384 CDTParser]: Found 1 translation units. [2023-08-25 07:56:49,620 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/04_incdec_cas.i [2023-08-25 07:56:49,629 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dce2d0f0d/8a308b0880094a02907fbc695de2b71d/FLAGdf65f6a45 [2023-08-25 07:56:49,637 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dce2d0f0d/8a308b0880094a02907fbc695de2b71d [2023-08-25 07:56:49,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-25 07:56:49,640 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-25 07:56:49,640 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-25 07:56:49,640 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-25 07:56:49,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-25 07:56:49,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:56:49" (1/1) ... [2023-08-25 07:56:49,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7994927e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:56:49, skipping insertion in model container [2023-08-25 07:56:49,643 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.08 07:56:49" (1/1) ... [2023-08-25 07:56:49,675 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-25 07:56:49,948 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:56:49,956 INFO L201 MainTranslator]: Completed pre-run [2023-08-25 07:56:49,978 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [250] [2023-08-25 07:56:49,979 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [250] [2023-08-25 07:56:49,989 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [686] [2023-08-25 07:56:49,990 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [687] [2023-08-25 07:56:49,990 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [688] [2023-08-25 07:56:49,990 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [689] [2023-08-25 07:56:49,990 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [690] [2023-08-25 07:56:49,992 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [701] [2023-08-25 07:56:49,992 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [702] [2023-08-25 07:56:49,993 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: volatile unsigned [703] [2023-08-25 07:56:49,993 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [704] [2023-08-25 07:56:49,994 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: inline unsigned [708] [2023-08-25 07:56:49,994 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [709] [2023-08-25 07:56:49,996 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [722] [2023-08-25 07:56:50,001 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: inline unsigned [726] [2023-08-25 07:56:50,001 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: unsigned [727] [2023-08-25 07:56:50,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-25 07:56:50,039 INFO L206 MainTranslator]: Completed translation [2023-08-25 07:56:50,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:56:50 WrapperNode [2023-08-25 07:56:50,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-25 07:56:50,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-25 07:56:50,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-25 07:56:50,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-25 07:56:50,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:56:50" (1/1) ... [2023-08-25 07:56:50,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:56:50" (1/1) ... [2023-08-25 07:56:50,104 INFO L138 Inliner]: procedures = 172, calls = 45, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 271 [2023-08-25 07:56:50,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-25 07:56:50,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-25 07:56:50,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-25 07:56:50,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-25 07:56:50,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:56:50" (1/1) ... [2023-08-25 07:56:50,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:56:50" (1/1) ... [2023-08-25 07:56:50,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:56:50" (1/1) ... [2023-08-25 07:56:50,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:56:50" (1/1) ... [2023-08-25 07:56:50,143 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:56:50" (1/1) ... [2023-08-25 07:56:50,152 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:56:50" (1/1) ... [2023-08-25 07:56:50,153 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:56:50" (1/1) ... [2023-08-25 07:56:50,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:56:50" (1/1) ... [2023-08-25 07:56:50,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-25 07:56:50,157 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-25 07:56:50,157 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-25 07:56:50,157 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-25 07:56:50,158 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:56:50" (1/1) ... [2023-08-25 07:56:50,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-25 07:56:50,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-25 07:56:50,192 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) [2023-08-25 07:56:50,206 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 [2023-08-25 07:56:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-25 07:56:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-25 07:56:50,214 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-25 07:56:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-25 07:56:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-25 07:56:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-25 07:56:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-25 07:56:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-25 07:56:50,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-25 07:56:50,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-25 07:56:50,215 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-25 07:56:50,300 INFO L236 CfgBuilder]: Building ICFG [2023-08-25 07:56:50,302 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-25 07:56:50,750 INFO L277 CfgBuilder]: Performing block encoding [2023-08-25 07:56:51,008 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-25 07:56:51,008 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-08-25 07:56:51,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:56:51 BoogieIcfgContainer [2023-08-25 07:56:51,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-25 07:56:51,012 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-25 07:56:51,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-25 07:56:51,014 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-25 07:56:51,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.08 07:56:49" (1/3) ... [2023-08-25 07:56:51,016 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc2808e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:56:51, skipping insertion in model container [2023-08-25 07:56:51,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.08 07:56:50" (2/3) ... [2023-08-25 07:56:51,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc2808e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.08 07:56:51, skipping insertion in model container [2023-08-25 07:56:51,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.08 07:56:51" (3/3) ... [2023-08-25 07:56:51,018 INFO L112 eAbstractionObserver]: Analyzing ICFG 04_incdec_cas.i [2023-08-25 07:56:51,030 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-25 07:56:51,030 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-25 07:56:51,030 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-25 07:56:51,152 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 07:56:51,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 136 transitions, 277 flow [2023-08-25 07:56:51,237 INFO L124 PetriNetUnfolderBase]: 9/146 cut-off events. [2023-08-25 07:56:51,237 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:56:51,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 146 events. 9/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 330 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 115. Up to 4 conditions per place. [2023-08-25 07:56:51,243 INFO L82 GeneralOperation]: Start removeDead. Operand has 131 places, 136 transitions, 277 flow [2023-08-25 07:56:51,248 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 131 places, 136 transitions, 277 flow [2023-08-25 07:56:51,251 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 07:56:51,260 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 136 transitions, 277 flow [2023-08-25 07:56:51,263 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 136 transitions, 277 flow [2023-08-25 07:56:51,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 136 transitions, 277 flow [2023-08-25 07:56:51,308 INFO L124 PetriNetUnfolderBase]: 9/146 cut-off events. [2023-08-25 07:56:51,308 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:56:51,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 146 events. 9/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 330 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 115. Up to 4 conditions per place. [2023-08-25 07:56:51,311 INFO L119 LiptonReduction]: Number of co-enabled transitions 2678 [2023-08-25 07:57:08,011 WARN L234 SmtUtils]: Spent 13.23s on a formula simplification. DAG size of input: 135 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:57:14,692 WARN L234 SmtUtils]: Spent 6.68s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:57:28,319 WARN L234 SmtUtils]: Spent 13.62s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:57:35,515 WARN L234 SmtUtils]: Spent 7.20s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:57:43,522 WARN L234 SmtUtils]: Spent 7.70s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:57:51,361 WARN L234 SmtUtils]: Spent 7.84s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:57:58,801 WARN L234 SmtUtils]: Spent 7.44s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:58:05,597 WARN L234 SmtUtils]: Spent 6.80s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:58:15,543 WARN L234 SmtUtils]: Spent 9.36s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:58:24,652 WARN L234 SmtUtils]: Spent 9.11s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:58:35,193 WARN L234 SmtUtils]: Spent 10.54s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:58:46,253 WARN L234 SmtUtils]: Spent 11.06s on a formula simplification that was a NOOP. DAG size: 148 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:59:00,560 WARN L234 SmtUtils]: Spent 14.15s on a formula simplification. DAG size of input: 134 DAG size of output: 127 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:59:08,769 WARN L234 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:59:24,936 WARN L234 SmtUtils]: Spent 16.16s on a formula simplification. DAG size of input: 138 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:59:32,863 WARN L234 SmtUtils]: Spent 7.92s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:59:33,967 INFO L134 LiptonReduction]: Checked pairs total: 3843 [2023-08-25 07:59:33,967 INFO L136 LiptonReduction]: Total number of compositions: 139 [2023-08-25 07:59:33,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 07:59:33,978 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;@423af212, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 07:59:33,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 07:59:33,982 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 07:59:33,982 INFO L124 PetriNetUnfolderBase]: 2/26 cut-off events. [2023-08-25 07:59:33,982 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-25 07:59:33,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 07:59:33,982 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-25 07:59:33,982 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 07:59:33,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 07:59:33,985 INFO L85 PathProgramCache]: Analyzing trace with hash -856261804, now seen corresponding path program 1 times [2023-08-25 07:59:33,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 07:59:33,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226966362] [2023-08-25 07:59:33,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 07:59:33,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 07:59:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 07:59:34,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 07:59:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 07:59:34,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 07:59:34,094 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 07:59:34,095 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 07:59:34,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-25 07:59:34,096 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 07:59:34,098 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 07:59:34,098 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 07:59:34,098 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-25 07:59:34,181 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 07:59:34,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 240 transitions, 492 flow [2023-08-25 07:59:34,232 INFO L124 PetriNetUnfolderBase]: 17/262 cut-off events. [2023-08-25 07:59:34,233 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:59:34,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 262 events. 17/262 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1007 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 218. Up to 6 conditions per place. [2023-08-25 07:59:34,236 INFO L82 GeneralOperation]: Start removeDead. Operand has 230 places, 240 transitions, 492 flow [2023-08-25 07:59:34,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 230 places, 240 transitions, 492 flow [2023-08-25 07:59:34,238 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 07:59:34,238 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 230 places, 240 transitions, 492 flow [2023-08-25 07:59:34,238 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 230 places, 240 transitions, 492 flow [2023-08-25 07:59:34,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 230 places, 240 transitions, 492 flow [2023-08-25 07:59:34,270 INFO L124 PetriNetUnfolderBase]: 17/262 cut-off events. [2023-08-25 07:59:34,270 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 07:59:34,272 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 262 events. 17/262 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1007 event pairs, 0 based on Foata normal form. 0/202 useless extension candidates. Maximal degree in co-relation 218. Up to 6 conditions per place. [2023-08-25 07:59:34,281 INFO L119 LiptonReduction]: Number of co-enabled transitions 26780 [2023-08-25 07:59:49,146 WARN L234 SmtUtils]: Spent 13.13s on a formula simplification. DAG size of input: 135 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 07:59:56,107 WARN L234 SmtUtils]: Spent 6.96s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:00:09,774 WARN L234 SmtUtils]: Spent 13.67s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:00:17,533 WARN L234 SmtUtils]: Spent 7.76s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:00:31,815 WARN L234 SmtUtils]: Spent 12.56s on a formula simplification. DAG size of input: 135 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:00:38,258 WARN L234 SmtUtils]: Spent 6.44s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:00:52,165 WARN L234 SmtUtils]: Spent 13.91s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:00:59,466 WARN L234 SmtUtils]: Spent 7.30s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:01:14,254 WARN L234 SmtUtils]: Spent 13.85s on a formula simplification. DAG size of input: 132 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:01:21,492 WARN L234 SmtUtils]: Spent 7.24s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:01:36,366 WARN L234 SmtUtils]: Spent 14.87s on a formula simplification. DAG size of input: 136 DAG size of output: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:01:43,536 WARN L234 SmtUtils]: Spent 7.17s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:01:50,681 WARN L234 SmtUtils]: Spent 7.08s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:01:57,852 WARN L234 SmtUtils]: Spent 7.16s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:02:05,990 WARN L234 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:02:13,578 WARN L234 SmtUtils]: Spent 7.59s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:02:27,933 WARN L234 SmtUtils]: Spent 14.14s on a formula simplification. DAG size of input: 132 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:02:34,906 WARN L234 SmtUtils]: Spent 6.97s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:02:51,255 WARN L234 SmtUtils]: Spent 16.35s on a formula simplification. DAG size of input: 136 DAG size of output: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:02:59,641 WARN L234 SmtUtils]: Spent 8.39s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:03:00,987 INFO L134 LiptonReduction]: Checked pairs total: 104215 [2023-08-25 08:03:00,987 INFO L136 LiptonReduction]: Total number of compositions: 163 [2023-08-25 08:03:00,989 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:03:00,990 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;@423af212, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:03:00,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:03:00,999 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:03:00,999 INFO L124 PetriNetUnfolderBase]: 4/75 cut-off events. [2023-08-25 08:03:00,999 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-25 08:03:01,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:03:01,000 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-25 08:03:01,000 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:03:01,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:03:01,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1011258410, now seen corresponding path program 1 times [2023-08-25 08:03:01,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:03:01,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611423516] [2023-08-25 08:03:01,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:03:01,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:03:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:03:01,020 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:03:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:03:01,042 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:03:01,043 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:03:01,043 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:03:01,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-25 08:03:01,043 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:03:01,043 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:03:01,043 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:03:01,044 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-25 08:03:01,146 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:03:01,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 329 places, 344 transitions, 709 flow [2023-08-25 08:03:01,195 INFO L124 PetriNetUnfolderBase]: 25/378 cut-off events. [2023-08-25 08:03:01,196 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-25 08:03:01,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 378 events. 25/378 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1752 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 321. Up to 8 conditions per place. [2023-08-25 08:03:01,201 INFO L82 GeneralOperation]: Start removeDead. Operand has 329 places, 344 transitions, 709 flow [2023-08-25 08:03:01,203 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 329 places, 344 transitions, 709 flow [2023-08-25 08:03:01,203 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:03:01,203 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 329 places, 344 transitions, 709 flow [2023-08-25 08:03:01,204 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 329 places, 344 transitions, 709 flow [2023-08-25 08:03:01,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 329 places, 344 transitions, 709 flow [2023-08-25 08:03:01,268 INFO L124 PetriNetUnfolderBase]: 25/378 cut-off events. [2023-08-25 08:03:01,268 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-25 08:03:01,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 378 events. 25/378 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1752 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 321. Up to 8 conditions per place. [2023-08-25 08:03:01,289 INFO L119 LiptonReduction]: Number of co-enabled transitions 72306 [2023-08-25 08:03:15,571 WARN L234 SmtUtils]: Spent 12.85s on a formula simplification. DAG size of input: 128 DAG size of output: 121 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:03:22,227 WARN L234 SmtUtils]: Spent 6.66s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:03:36,686 WARN L234 SmtUtils]: Spent 14.46s on a formula simplification. DAG size of input: 132 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:03:44,278 WARN L234 SmtUtils]: Spent 7.59s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:03:59,639 WARN L234 SmtUtils]: Spent 15.03s on a formula simplification. DAG size of input: 135 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:04:07,054 WARN L234 SmtUtils]: Spent 7.41s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:04:21,916 WARN L234 SmtUtils]: Spent 14.86s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:04:29,519 WARN L234 SmtUtils]: Spent 7.60s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:04:45,861 WARN L234 SmtUtils]: Spent 13.38s on a formula simplification. DAG size of input: 128 DAG size of output: 121 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:04:52,518 WARN L234 SmtUtils]: Spent 6.66s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:05:06,792 WARN L234 SmtUtils]: Spent 14.27s on a formula simplification. DAG size of input: 132 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:05:14,407 WARN L234 SmtUtils]: Spent 7.61s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:05:29,216 WARN L234 SmtUtils]: Spent 14.43s on a formula simplification. DAG size of input: 135 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:05:36,657 WARN L234 SmtUtils]: Spent 7.44s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:05:50,046 WARN L234 SmtUtils]: Spent 13.39s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:05:57,162 WARN L234 SmtUtils]: Spent 7.12s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:06:07,801 WARN L234 SmtUtils]: Spent 6.34s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:06:14,442 WARN L234 SmtUtils]: Spent 6.64s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:06:23,158 WARN L234 SmtUtils]: Spent 8.71s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:06:31,812 WARN L234 SmtUtils]: Spent 8.65s on a formula simplification that was a NOOP. DAG size: 129 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:06:39,534 WARN L234 SmtUtils]: Spent 7.59s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:06:47,165 WARN L234 SmtUtils]: Spent 7.63s on a formula simplification that was a NOOP. DAG size: 126 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:06:54,180 WARN L234 SmtUtils]: Spent 7.01s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:07:02,462 WARN L234 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 134 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:07:04,923 INFO L134 LiptonReduction]: Checked pairs total: 256428 [2023-08-25 08:07:04,923 INFO L136 LiptonReduction]: Total number of compositions: 226 [2023-08-25 08:07:04,929 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-25 08:07:04,930 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;@423af212, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-25 08:07:04,930 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-08-25 08:07:04,944 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-25 08:07:04,944 INFO L124 PetriNetUnfolderBase]: 7/132 cut-off events. [2023-08-25 08:07:04,944 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-08-25 08:07:04,944 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-25 08:07:04,944 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-25 08:07:04,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-08-25 08:07:04,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-25 08:07:04,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1473858905, now seen corresponding path program 1 times [2023-08-25 08:07:04,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-25 08:07:04,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766757008] [2023-08-25 08:07:04,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-25 08:07:04,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-25 08:07:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:07:04,982 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-25 08:07:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-25 08:07:04,997 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-25 08:07:04,997 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-25 08:07:04,998 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-08-25 08:07:04,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-25 08:07:04,998 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-25 08:07:04,998 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (1/2) [2023-08-25 08:07:04,998 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-25 08:07:04,998 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-25 08:07:05,105 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-25 08:07:05,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 428 places, 448 transitions, 928 flow [2023-08-25 08:07:05,172 INFO L124 PetriNetUnfolderBase]: 33/494 cut-off events. [2023-08-25 08:07:05,172 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-25 08:07:05,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 494 events. 33/494 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2488 event pairs, 0 based on Foata normal form. 0/376 useless extension candidates. Maximal degree in co-relation 424. Up to 10 conditions per place. [2023-08-25 08:07:05,178 INFO L82 GeneralOperation]: Start removeDead. Operand has 428 places, 448 transitions, 928 flow [2023-08-25 08:07:05,181 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 428 places, 448 transitions, 928 flow [2023-08-25 08:07:05,181 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-25 08:07:05,181 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 428 places, 448 transitions, 928 flow [2023-08-25 08:07:05,181 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 428 places, 448 transitions, 928 flow [2023-08-25 08:07:05,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 428 places, 448 transitions, 928 flow [2023-08-25 08:07:05,245 INFO L124 PetriNetUnfolderBase]: 33/494 cut-off events. [2023-08-25 08:07:05,246 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-08-25 08:07:05,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 494 events. 33/494 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2488 event pairs, 0 based on Foata normal form. 0/376 useless extension candidates. Maximal degree in co-relation 424. Up to 10 conditions per place. [2023-08-25 08:07:05,268 INFO L119 LiptonReduction]: Number of co-enabled transitions 139256 [2023-08-25 08:07:21,534 WARN L234 SmtUtils]: Spent 13.27s on a formula simplification. DAG size of input: 135 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:07:28,369 WARN L234 SmtUtils]: Spent 6.83s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:07:42,157 WARN L234 SmtUtils]: Spent 13.79s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:07:49,654 WARN L234 SmtUtils]: Spent 7.50s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:08:03,666 WARN L234 SmtUtils]: Spent 13.79s on a formula simplification. DAG size of input: 128 DAG size of output: 121 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:08:10,738 WARN L234 SmtUtils]: Spent 7.07s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:08:27,861 WARN L234 SmtUtils]: Spent 17.12s on a formula simplification. DAG size of input: 132 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:08:36,436 WARN L234 SmtUtils]: Spent 8.57s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:08:52,880 WARN L234 SmtUtils]: Spent 14.88s on a formula simplification. DAG size of input: 135 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:09:00,446 WARN L234 SmtUtils]: Spent 7.57s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:09:14,597 WARN L234 SmtUtils]: Spent 14.15s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:09:21,932 WARN L234 SmtUtils]: Spent 7.33s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:09:37,847 WARN L234 SmtUtils]: Spent 15.58s on a formula simplification. DAG size of input: 135 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:09:45,814 WARN L234 SmtUtils]: Spent 7.97s on a formula simplification that was a NOOP. DAG size: 123 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:10:00,903 WARN L234 SmtUtils]: Spent 15.09s on a formula simplification. DAG size of input: 150 DAG size of output: 131 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:10:08,759 WARN L234 SmtUtils]: Spent 7.85s on a formula simplification that was a NOOP. DAG size: 131 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:10:23,216 WARN L234 SmtUtils]: Spent 14.18s on a formula simplification. DAG size of input: 128 DAG size of output: 121 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:10:30,465 WARN L234 SmtUtils]: Spent 7.25s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:10:46,751 WARN L234 SmtUtils]: Spent 16.28s on a formula simplification. DAG size of input: 132 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:10:55,439 WARN L234 SmtUtils]: Spent 8.69s on a formula simplification that was a NOOP. DAG size: 125 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:11:08,033 WARN L234 SmtUtils]: Spent 12.59s on a formula simplification. DAG size of input: 128 DAG size of output: 121 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:11:14,826 WARN L234 SmtUtils]: Spent 6.79s on a formula simplification that was a NOOP. DAG size: 121 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-08-25 08:11:28,912 WARN L234 SmtUtils]: Spent 14.09s on a formula simplification. DAG size of input: 132 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) Received shutdown request... [2023-08-25 08:11:30,668 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-08-25 08:11:30,744 WARN L266 SmtUtils]: Removed 20 from assertion stack [2023-08-25 08:11:30,745 INFO L257 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2023-08-25 08:11:30,745 INFO L158 Benchmark]: Toolchain (without parser) took 881105.75ms. Allocated memory was 379.6MB in the beginning and 471.9MB in the end (delta: 92.3MB). Free memory was 355.0MB in the beginning and 198.6MB in the end (delta: 156.3MB). Peak memory consumption was 309.4MB. Max. memory is 16.0GB. [2023-08-25 08:11:30,746 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 379.6MB. Free memory is still 356.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-08-25 08:11:30,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.90ms. Allocated memory is still 379.6MB. Free memory was 354.5MB in the beginning and 333.5MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-08-25 08:11:30,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.65ms. Allocated memory is still 379.6MB. Free memory was 333.5MB in the beginning and 329.7MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-25 08:11:30,746 INFO L158 Benchmark]: Boogie Preprocessor took 51.57ms. Allocated memory is still 379.6MB. Free memory was 329.7MB in the beginning and 326.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-08-25 08:11:30,746 INFO L158 Benchmark]: RCFGBuilder took 853.14ms. Allocated memory is still 379.6MB. Free memory was 326.6MB in the beginning and 283.2MB in the end (delta: 43.4MB). Peak memory consumption was 44.8MB. Max. memory is 16.0GB. [2023-08-25 08:11:30,746 INFO L158 Benchmark]: TraceAbstraction took 879732.92ms. Allocated memory was 379.6MB in the beginning and 471.9MB in the end (delta: 92.3MB). Free memory was 282.9MB in the beginning and 198.6MB in the end (delta: 84.2MB). Peak memory consumption was 235.2MB. Max. memory is 16.0GB. [2023-08-25 08:11:30,747 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 379.6MB. Free memory is still 356.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 399.90ms. Allocated memory is still 379.6MB. Free memory was 354.5MB in the beginning and 333.5MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 63.65ms. Allocated memory is still 379.6MB. Free memory was 333.5MB in the beginning and 329.7MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 51.57ms. Allocated memory is still 379.6MB. Free memory was 329.7MB in the beginning and 326.6MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 853.14ms. Allocated memory is still 379.6MB. Free memory was 326.6MB in the beginning and 283.2MB in the end (delta: 43.4MB). Peak memory consumption was 44.8MB. Max. memory is 16.0GB. * TraceAbstraction took 879732.92ms. Allocated memory was 379.6MB in the beginning and 471.9MB in the end (delta: 92.3MB). Free memory was 282.9MB in the beginning and 198.6MB in the end (delta: 84.2MB). Peak memory consumption was 235.2MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 250]: Unsoundness Warning unspecified type, defaulting to int C: short [250] - GenericResultAtLocation [Line: 250]: Unsoundness Warning unspecified type, defaulting to int C: short [250] - GenericResultAtLocation [Line: 686]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [686] - GenericResultAtLocation [Line: 687]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [687] - GenericResultAtLocation [Line: 688]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [688] - GenericResultAtLocation [Line: 689]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [689] - GenericResultAtLocation [Line: 690]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [690] - GenericResultAtLocation [Line: 701]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [701] - GenericResultAtLocation [Line: 702]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [702] - GenericResultAtLocation [Line: 703]: Unsoundness Warning unspecified type, defaulting to int C: volatile unsigned [703] - GenericResultAtLocation [Line: 704]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [704] - GenericResultAtLocation [Line: 708]: Unsoundness Warning unspecified type, defaulting to int C: inline unsigned [708] - GenericResultAtLocation [Line: 709]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [709] - GenericResultAtLocation [Line: 722]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [722] - GenericResultAtLocation [Line: 726]: Unsoundness Warning unspecified type, defaulting to int C: inline unsigned [726] - GenericResultAtLocation [Line: 727]: Unsoundness Warning unspecified type, defaulting to int C: unsigned [727] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 162.7s, 131 PlacesBefore, 40 PlacesAfterwards, 136 TransitionsBefore, 44 TransitionsAfterwards, 2678 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 107 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 1 ChoiceCompositions, 139 TotalNumberOfCompositions, 3843 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2734, independent: 2533, independent conditional: 0, independent unconditional: 2533, dependent: 201, dependent conditional: 0, dependent unconditional: 201, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1381, independent: 1331, independent conditional: 0, independent unconditional: 1331, dependent: 50, dependent conditional: 0, dependent unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2734, independent: 1202, independent conditional: 0, independent unconditional: 1202, dependent: 151, dependent conditional: 0, dependent unconditional: 151, unknown: 1381, unknown conditional: 0, unknown unconditional: 1381] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 206.7s, 230 PlacesBefore, 117 PlacesAfterwards, 240 TransitionsBefore, 126 TransitionsAfterwards, 26780 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 124 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 1 ChoiceCompositions, 163 TotalNumberOfCompositions, 104215 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 23961, independent: 22803, independent conditional: 0, independent unconditional: 22803, dependent: 1158, dependent conditional: 0, dependent unconditional: 1158, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 11595, independent: 11402, independent conditional: 0, independent unconditional: 11402, dependent: 193, dependent conditional: 0, dependent unconditional: 193, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 23961, independent: 11401, independent conditional: 0, independent unconditional: 11401, dependent: 965, dependent conditional: 0, dependent unconditional: 965, unknown: 11595, unknown conditional: 0, unknown unconditional: 11595] , Statistics on independence cache: Total cache size (in pairs): 814, Positive cache size: 697, Positive conditional cache size: 0, Positive unconditional cache size: 697, Negative cache size: 117, Negative conditional cache size: 0, Negative unconditional cache size: 117, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 243.7s, 329 PlacesBefore, 173 PlacesAfterwards, 344 TransitionsBefore, 187 TransitionsAfterwards, 72306 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 174 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 33 ConcurrentYvCompositions, 1 ChoiceCompositions, 226 TotalNumberOfCompositions, 256428 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 52561, independent: 51113, independent conditional: 0, independent unconditional: 51113, dependent: 1448, dependent conditional: 0, dependent unconditional: 1448, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 30839, independent: 30525, independent conditional: 0, independent unconditional: 30525, dependent: 314, dependent conditional: 0, dependent unconditional: 314, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 52561, independent: 20588, independent conditional: 0, independent unconditional: 20588, dependent: 1134, dependent conditional: 0, dependent unconditional: 1134, unknown: 30839, unknown conditional: 0, unknown unconditional: 30839] , Statistics on independence cache: Total cache size (in pairs): 1968, Positive cache size: 1744, Positive conditional cache size: 0, Positive unconditional cache size: 1744, Negative cache size: 224, Negative conditional cache size: 0, Negative unconditional cache size: 224, 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 428 places, 448 transitions, 928 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 428 places, 448 transitions, 928 flow and 139256 co-enabled transitions pairs.,while SimplifyDDAWithTimeout was simplifying term of DAG size 125 for 1830ms.. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown