./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:31:55,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:31:55,109 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:31:55,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:31:55,134 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:31:55,166 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:31:55,167 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:31:55,167 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:31:55,168 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:31:55,168 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:31:55,169 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:31:55,169 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:31:55,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:31:55,171 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:31:55,172 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:31:55,173 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:31:55,173 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:31:55,173 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:31:55,174 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:31:55,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:31:55,176 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:31:55,177 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:31:55,177 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:31:55,178 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:31:55,178 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:31:55,178 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:31:55,179 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:31:55,179 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:31:55,179 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:31:55,180 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:31:55,180 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:31:55,180 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:31:55,181 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:31:55,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:31:55,181 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:31:55,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:31:55,182 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:31:55,183 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:31:55,183 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:31:55,183 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:31:55,183 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:31:55,184 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:31:55,184 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 [2024-11-09 10:31:55,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:31:55,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:31:55,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:31:55,487 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:31:55,488 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:31:55,490 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-09 10:31:56,970 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:31:57,215 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:31:57,216 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-09 10:31:57,230 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23679a891/c9b75a5747ce474fa74147a554c7e381/FLAG4bede51ab [2024-11-09 10:31:57,533 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23679a891/c9b75a5747ce474fa74147a554c7e381 [2024-11-09 10:31:57,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:31:57,537 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:31:57,538 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:31:57,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:31:57,543 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:31:57,544 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:31:57" (1/1) ... [2024-11-09 10:31:57,545 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43814d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:31:57, skipping insertion in model container [2024-11-09 10:31:57,545 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:31:57" (1/1) ... [2024-11-09 10:31:57,600 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:31:57,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:31:57,986 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:31:58,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:31:58,092 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:31:58,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:31:58 WrapperNode [2024-11-09 10:31:58,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:31:58,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:31:58,094 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:31:58,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:31:58,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:31:58" (1/1) ... [2024-11-09 10:31:58,125 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:31:58" (1/1) ... [2024-11-09 10:31:58,163 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 148 [2024-11-09 10:31:58,164 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:31:58,165 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:31:58,165 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:31:58,165 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:31:58,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:31:58" (1/1) ... [2024-11-09 10:31:58,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:31:58" (1/1) ... [2024-11-09 10:31:58,180 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:31:58" (1/1) ... [2024-11-09 10:31:58,199 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 10:31:58,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:31:58" (1/1) ... [2024-11-09 10:31:58,199 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:31:58" (1/1) ... [2024-11-09 10:31:58,209 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:31:58" (1/1) ... [2024-11-09 10:31:58,212 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:31:58" (1/1) ... [2024-11-09 10:31:58,214 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:31:58" (1/1) ... [2024-11-09 10:31:58,215 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:31:58" (1/1) ... [2024-11-09 10:31:58,221 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:31:58,222 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:31:58,222 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:31:58,222 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:31:58,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:31:58" (1/1) ... [2024-11-09 10:31:58,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:31:58,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:31:58,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 10:31:58,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 10:31:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 10:31:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:31:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 10:31:58,331 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 10:31:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 10:31:58,332 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 10:31:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 10:31:58,332 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 10:31:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-09 10:31:58,332 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-09 10:31:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 10:31:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 10:31:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:31:58,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:31:58,335 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 10:31:58,455 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:31:58,457 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:31:58,768 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:31:58,768 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:31:59,044 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:31:59,045 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 10:31:59,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:31:59 BoogieIcfgContainer [2024-11-09 10:31:59,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:31:59,048 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:31:59,048 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:31:59,052 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:31:59,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:31:57" (1/3) ... [2024-11-09 10:31:59,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f404e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:31:59, skipping insertion in model container [2024-11-09 10:31:59,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:31:58" (2/3) ... [2024-11-09 10:31:59,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f404e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:31:59, skipping insertion in model container [2024-11-09 10:31:59,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:31:59" (3/3) ... [2024-11-09 10:31:59,055 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-09 10:31:59,073 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:31:59,074 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 10:31:59,074 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:31:59,141 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 10:31:59,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 53 transitions, 122 flow [2024-11-09 10:31:59,220 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2024-11-09 10:31:59,221 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:31:59,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 49 events. 2/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-11-09 10:31:59,226 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 53 transitions, 122 flow [2024-11-09 10:31:59,230 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 49 transitions, 110 flow [2024-11-09 10:31:59,240 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:31:59,246 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@64c9ac49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:31:59,247 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-09 10:31:59,255 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:31:59,255 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-11-09 10:31:59,256 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:31:59,256 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:31:59,257 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:31:59,257 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:31:59,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:31:59,263 INFO L85 PathProgramCache]: Analyzing trace with hash -924434098, now seen corresponding path program 1 times [2024-11-09 10:31:59,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:31:59,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060218270] [2024-11-09 10:31:59,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:31:59,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:31:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:31:59,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:31:59,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:31:59,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060218270] [2024-11-09 10:31:59,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060218270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:31:59,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:31:59,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:31:59,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20874081] [2024-11-09 10:31:59,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:31:59,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:31:59,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:31:59,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:31:59,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:31:59,889 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 53 [2024-11-09 10:31:59,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:31:59,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:31:59,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 53 [2024-11-09 10:31:59,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:32:00,387 INFO L124 PetriNetUnfolderBase]: 1047/1835 cut-off events. [2024-11-09 10:32:00,387 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:32:00,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3395 conditions, 1835 events. 1047/1835 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 12952 event pairs, 219 based on Foata normal form. 96/1889 useless extension candidates. Maximal degree in co-relation 3383. Up to 1153 conditions per place. [2024-11-09 10:32:00,414 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 31 selfloop transitions, 2 changer transitions 2/57 dead transitions. [2024-11-09 10:32:00,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 57 transitions, 196 flow [2024-11-09 10:32:00,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:32:00,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:32:00,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-11-09 10:32:00,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7421383647798742 [2024-11-09 10:32:00,429 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 110 flow. Second operand 3 states and 118 transitions. [2024-11-09 10:32:00,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 57 transitions, 196 flow [2024-11-09 10:32:00,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 57 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-09 10:32:00,438 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 100 flow [2024-11-09 10:32:00,440 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-11-09 10:32:00,443 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2024-11-09 10:32:00,444 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 100 flow [2024-11-09 10:32:00,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:00,446 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:32:00,446 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:32:00,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 10:32:00,447 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:32:00,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:32:00,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1857640590, now seen corresponding path program 1 times [2024-11-09 10:32:00,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:32:00,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776584414] [2024-11-09 10:32:00,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:32:00,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:32:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:32:00,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:32:00,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:32:00,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776584414] [2024-11-09 10:32:00,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776584414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:32:00,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:32:00,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:32:00,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40322005] [2024-11-09 10:32:00,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:32:00,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:32:00,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:32:00,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:32:00,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:32:00,557 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-11-09 10:32:00,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:00,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:32:00,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-11-09 10:32:00,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:32:00,818 INFO L124 PetriNetUnfolderBase]: 931/1611 cut-off events. [2024-11-09 10:32:00,818 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-11-09 10:32:00,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3101 conditions, 1611 events. 931/1611 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 11734 event pairs, 931 based on Foata normal form. 48/1593 useless extension candidates. Maximal degree in co-relation 3091. Up to 1352 conditions per place. [2024-11-09 10:32:00,833 INFO L140 encePairwiseOnDemand]: 51/53 looper letters, 20 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2024-11-09 10:32:00,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 43 transitions, 142 flow [2024-11-09 10:32:00,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:32:00,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:32:00,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-11-09 10:32:00,837 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6163522012578616 [2024-11-09 10:32:00,837 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 98 transitions. [2024-11-09 10:32:00,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 43 transitions, 142 flow [2024-11-09 10:32:00,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:32:00,842 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2024-11-09 10:32:00,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-11-09 10:32:00,843 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2024-11-09 10:32:00,843 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2024-11-09 10:32:00,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:00,843 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:32:00,844 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:32:00,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 10:32:00,845 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:32:00,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:32:00,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1857641872, now seen corresponding path program 1 times [2024-11-09 10:32:00,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:32:00,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499582165] [2024-11-09 10:32:00,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:32:00,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:32:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:32:01,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:32:01,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:32:01,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499582165] [2024-11-09 10:32:01,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499582165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:32:01,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:32:01,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:32:01,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931415519] [2024-11-09 10:32:01,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:32:01,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:32:01,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:32:01,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:32:01,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:32:01,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 53 [2024-11-09 10:32:01,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:01,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:32:01,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 53 [2024-11-09 10:32:01,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:32:04,506 INFO L124 PetriNetUnfolderBase]: 12285/19363 cut-off events. [2024-11-09 10:32:04,506 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:32:04,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36451 conditions, 19363 events. 12285/19363 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1122. Compared 152880 event pairs, 647 based on Foata normal form. 0/18935 useless extension candidates. Maximal degree in co-relation 36445. Up to 6657 conditions per place. [2024-11-09 10:32:04,644 INFO L140 encePairwiseOnDemand]: 39/53 looper letters, 49 selfloop transitions, 12 changer transitions 100/176 dead transitions. [2024-11-09 10:32:04,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 176 transitions, 690 flow [2024-11-09 10:32:04,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 10:32:04,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-09 10:32:04,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 404 transitions. [2024-11-09 10:32:04,649 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6352201257861635 [2024-11-09 10:32:04,649 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 12 states and 404 transitions. [2024-11-09 10:32:04,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 176 transitions, 690 flow [2024-11-09 10:32:04,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 176 transitions, 689 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 10:32:04,654 INFO L231 Difference]: Finished difference. Result has 74 places, 52 transitions, 231 flow [2024-11-09 10:32:04,654 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=231, PETRI_PLACES=74, PETRI_TRANSITIONS=52} [2024-11-09 10:32:04,655 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 14 predicate places. [2024-11-09 10:32:04,655 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 52 transitions, 231 flow [2024-11-09 10:32:04,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:04,656 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:32:04,656 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:32:04,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 10:32:04,657 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:32:04,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:32:04,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1560504885, now seen corresponding path program 1 times [2024-11-09 10:32:04,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:32:04,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948289537] [2024-11-09 10:32:04,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:32:04,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:32:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:32:04,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:32:04,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:32:04,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948289537] [2024-11-09 10:32:04,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948289537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:32:04,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:32:04,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:32:04,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302016001] [2024-11-09 10:32:04,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:32:04,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:32:04,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:32:04,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:32:04,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:32:04,869 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 53 [2024-11-09 10:32:04,870 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 52 transitions, 231 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:04,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:32:04,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 53 [2024-11-09 10:32:04,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:32:06,980 INFO L124 PetriNetUnfolderBase]: 7519/13171 cut-off events. [2024-11-09 10:32:06,981 INFO L125 PetriNetUnfolderBase]: For 26979/28308 co-relation queries the response was YES. [2024-11-09 10:32:07,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42243 conditions, 13171 events. 7519/13171 cut-off events. For 26979/28308 co-relation queries the response was YES. Maximal size of possible extension queue 810. Compared 110098 event pairs, 2275 based on Foata normal form. 370/13103 useless extension candidates. Maximal degree in co-relation 42225. Up to 7918 conditions per place. [2024-11-09 10:32:07,074 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 42 selfloop transitions, 4 changer transitions 45/114 dead transitions. [2024-11-09 10:32:07,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 114 transitions, 797 flow [2024-11-09 10:32:07,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:32:07,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:32:07,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 237 transitions. [2024-11-09 10:32:07,076 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6388140161725068 [2024-11-09 10:32:07,077 INFO L175 Difference]: Start difference. First operand has 74 places, 52 transitions, 231 flow. Second operand 7 states and 237 transitions. [2024-11-09 10:32:07,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 114 transitions, 797 flow [2024-11-09 10:32:07,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 114 transitions, 731 flow, removed 33 selfloop flow, removed 4 redundant places. [2024-11-09 10:32:07,175 INFO L231 Difference]: Finished difference. Result has 72 places, 55 transitions, 273 flow [2024-11-09 10:32:07,177 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=273, PETRI_PLACES=72, PETRI_TRANSITIONS=55} [2024-11-09 10:32:07,179 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 12 predicate places. [2024-11-09 10:32:07,179 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 55 transitions, 273 flow [2024-11-09 10:32:07,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:07,179 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:32:07,180 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:32:07,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 10:32:07,180 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:32:07,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:32:07,181 INFO L85 PathProgramCache]: Analyzing trace with hash 852582280, now seen corresponding path program 1 times [2024-11-09 10:32:07,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:32:07,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042461300] [2024-11-09 10:32:07,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:32:07,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:32:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:32:07,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:32:07,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:32:07,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042461300] [2024-11-09 10:32:07,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042461300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:32:07,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:32:07,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:32:07,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186970368] [2024-11-09 10:32:07,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:32:07,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:32:07,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:32:07,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:32:07,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:32:07,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 53 [2024-11-09 10:32:07,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 55 transitions, 273 flow. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:07,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:32:07,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 53 [2024-11-09 10:32:07,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:32:10,168 INFO L124 PetriNetUnfolderBase]: 11217/18235 cut-off events. [2024-11-09 10:32:10,169 INFO L125 PetriNetUnfolderBase]: For 37196/37196 co-relation queries the response was YES. [2024-11-09 10:32:10,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60407 conditions, 18235 events. 11217/18235 cut-off events. For 37196/37196 co-relation queries the response was YES. Maximal size of possible extension queue 1043. Compared 149798 event pairs, 2338 based on Foata normal form. 350/18289 useless extension candidates. Maximal degree in co-relation 60386. Up to 5814 conditions per place. [2024-11-09 10:32:10,551 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 61 selfloop transitions, 24 changer transitions 68/168 dead transitions. [2024-11-09 10:32:10,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 168 transitions, 1209 flow [2024-11-09 10:32:10,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 10:32:10,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 10:32:10,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2024-11-09 10:32:10,554 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6169811320754717 [2024-11-09 10:32:10,554 INFO L175 Difference]: Start difference. First operand has 72 places, 55 transitions, 273 flow. Second operand 10 states and 327 transitions. [2024-11-09 10:32:10,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 168 transitions, 1209 flow [2024-11-09 10:32:10,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 168 transitions, 1177 flow, removed 13 selfloop flow, removed 3 redundant places. [2024-11-09 10:32:10,652 INFO L231 Difference]: Finished difference. Result has 83 places, 71 transitions, 543 flow [2024-11-09 10:32:10,652 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=543, PETRI_PLACES=83, PETRI_TRANSITIONS=71} [2024-11-09 10:32:10,653 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 23 predicate places. [2024-11-09 10:32:10,653 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 71 transitions, 543 flow [2024-11-09 10:32:10,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:10,655 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:32:10,655 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:32:10,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 10:32:10,655 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:32:10,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:32:10,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1983474222, now seen corresponding path program 1 times [2024-11-09 10:32:10,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:32:10,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744485833] [2024-11-09 10:32:10,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:32:10,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:32:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:32:11,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:32:11,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:32:11,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744485833] [2024-11-09 10:32:11,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744485833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:32:11,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:32:11,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:32:11,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12874521] [2024-11-09 10:32:11,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:32:11,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:32:11,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:32:11,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:32:11,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:32:11,315 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-11-09 10:32:11,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 71 transitions, 543 flow. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:11,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:32:11,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-11-09 10:32:11,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:32:13,773 INFO L124 PetriNetUnfolderBase]: 11325/20082 cut-off events. [2024-11-09 10:32:13,773 INFO L125 PetriNetUnfolderBase]: For 87863/88857 co-relation queries the response was YES. [2024-11-09 10:32:13,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75875 conditions, 20082 events. 11325/20082 cut-off events. For 87863/88857 co-relation queries the response was YES. Maximal size of possible extension queue 1298. Compared 183907 event pairs, 3243 based on Foata normal form. 680/19974 useless extension candidates. Maximal degree in co-relation 75846. Up to 11113 conditions per place. [2024-11-09 10:32:13,926 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 41 selfloop transitions, 6 changer transitions 43/128 dead transitions. [2024-11-09 10:32:13,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 128 transitions, 1125 flow [2024-11-09 10:32:13,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 10:32:13,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 10:32:13,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2024-11-09 10:32:13,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6145552560646901 [2024-11-09 10:32:13,928 INFO L175 Difference]: Start difference. First operand has 83 places, 71 transitions, 543 flow. Second operand 7 states and 228 transitions. [2024-11-09 10:32:13,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 128 transitions, 1125 flow [2024-11-09 10:32:14,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 128 transitions, 1105 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-11-09 10:32:14,179 INFO L231 Difference]: Finished difference. Result has 84 places, 75 transitions, 617 flow [2024-11-09 10:32:14,179 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=617, PETRI_PLACES=84, PETRI_TRANSITIONS=75} [2024-11-09 10:32:14,180 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 24 predicate places. [2024-11-09 10:32:14,180 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 75 transitions, 617 flow [2024-11-09 10:32:14,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:14,181 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:32:14,181 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:32:14,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 10:32:14,181 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:32:14,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:32:14,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1883622927, now seen corresponding path program 1 times [2024-11-09 10:32:14,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:32:14,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322719366] [2024-11-09 10:32:14,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:32:14,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:32:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:32:14,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:32:14,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:32:14,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322719366] [2024-11-09 10:32:14,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322719366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:32:14,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:32:14,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 10:32:14,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884950155] [2024-11-09 10:32:14,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:32:14,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:32:14,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:32:14,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:32:14,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:32:14,938 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 53 [2024-11-09 10:32:14,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 75 transitions, 617 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:14,939 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:32:14,939 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 53 [2024-11-09 10:32:14,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:32:17,778 INFO L124 PetriNetUnfolderBase]: 14278/23422 cut-off events. [2024-11-09 10:32:17,779 INFO L125 PetriNetUnfolderBase]: For 111216/111216 co-relation queries the response was YES. [2024-11-09 10:32:18,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97266 conditions, 23422 events. 14278/23422 cut-off events. For 111216/111216 co-relation queries the response was YES. Maximal size of possible extension queue 1328. Compared 197189 event pairs, 1529 based on Foata normal form. 435/23737 useless extension candidates. Maximal degree in co-relation 97234. Up to 9247 conditions per place. [2024-11-09 10:32:18,130 INFO L140 encePairwiseOnDemand]: 39/53 looper letters, 79 selfloop transitions, 47 changer transitions 91/231 dead transitions. [2024-11-09 10:32:18,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 231 transitions, 2441 flow [2024-11-09 10:32:18,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 10:32:18,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-09 10:32:18,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 398 transitions. [2024-11-09 10:32:18,133 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5776487663280117 [2024-11-09 10:32:18,133 INFO L175 Difference]: Start difference. First operand has 84 places, 75 transitions, 617 flow. Second operand 13 states and 398 transitions. [2024-11-09 10:32:18,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 231 transitions, 2441 flow [2024-11-09 10:32:18,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 231 transitions, 2405 flow, removed 14 selfloop flow, removed 3 redundant places. [2024-11-09 10:32:18,350 INFO L231 Difference]: Finished difference. Result has 101 places, 102 transitions, 1163 flow [2024-11-09 10:32:18,350 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1163, PETRI_PLACES=101, PETRI_TRANSITIONS=102} [2024-11-09 10:32:18,351 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 41 predicate places. [2024-11-09 10:32:18,351 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 102 transitions, 1163 flow [2024-11-09 10:32:18,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:18,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:32:18,352 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:32:18,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 10:32:18,352 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:32:18,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:32:18,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1767986703, now seen corresponding path program 2 times [2024-11-09 10:32:18,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:32:18,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966905944] [2024-11-09 10:32:18,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:32:18,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:32:18,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:32:18,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:32:18,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:32:18,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966905944] [2024-11-09 10:32:18,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966905944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:32:18,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:32:18,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:32:18,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339074963] [2024-11-09 10:32:18,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:32:18,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 10:32:18,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:32:18,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 10:32:18,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 10:32:18,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-11-09 10:32:18,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 102 transitions, 1163 flow. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:18,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:32:18,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-11-09 10:32:18,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:32:21,085 INFO L124 PetriNetUnfolderBase]: 9918/17495 cut-off events. [2024-11-09 10:32:21,086 INFO L125 PetriNetUnfolderBase]: For 147145/148714 co-relation queries the response was YES. [2024-11-09 10:32:21,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80548 conditions, 17495 events. 9918/17495 cut-off events. For 147145/148714 co-relation queries the response was YES. Maximal size of possible extension queue 1044. Compared 154811 event pairs, 1977 based on Foata normal form. 566/17413 useless extension candidates. Maximal degree in co-relation 80505. Up to 9267 conditions per place. [2024-11-09 10:32:21,250 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 46 selfloop transitions, 22 changer transitions 44/169 dead transitions. [2024-11-09 10:32:21,250 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 169 transitions, 2077 flow [2024-11-09 10:32:21,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 10:32:21,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 10:32:21,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 259 transitions. [2024-11-09 10:32:21,252 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6108490566037735 [2024-11-09 10:32:21,252 INFO L175 Difference]: Start difference. First operand has 101 places, 102 transitions, 1163 flow. Second operand 8 states and 259 transitions. [2024-11-09 10:32:21,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 169 transitions, 2077 flow [2024-11-09 10:32:21,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 169 transitions, 2011 flow, removed 33 selfloop flow, removed 6 redundant places. [2024-11-09 10:32:21,954 INFO L231 Difference]: Finished difference. Result has 100 places, 112 transitions, 1375 flow [2024-11-09 10:32:21,954 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1133, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1375, PETRI_PLACES=100, PETRI_TRANSITIONS=112} [2024-11-09 10:32:21,955 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 40 predicate places. [2024-11-09 10:32:21,955 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 112 transitions, 1375 flow [2024-11-09 10:32:21,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:21,955 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:32:21,956 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:32:21,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 10:32:21,956 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:32:21,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:32:21,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1585188850, now seen corresponding path program 1 times [2024-11-09 10:32:21,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:32:21,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959467000] [2024-11-09 10:32:21,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:32:21,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:32:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:32:22,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:32:22,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:32:22,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959467000] [2024-11-09 10:32:22,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959467000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:32:22,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:32:22,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:32:22,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127077650] [2024-11-09 10:32:22,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:32:22,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:32:22,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:32:22,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:32:22,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:32:22,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-11-09 10:32:22,107 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 112 transitions, 1375 flow. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:22,107 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:32:22,107 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-11-09 10:32:22,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:32:27,533 INFO L124 PetriNetUnfolderBase]: 30367/46275 cut-off events. [2024-11-09 10:32:27,534 INFO L125 PetriNetUnfolderBase]: For 307356/323982 co-relation queries the response was YES. [2024-11-09 10:32:27,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179414 conditions, 46275 events. 30367/46275 cut-off events. For 307356/323982 co-relation queries the response was YES. Maximal size of possible extension queue 2163. Compared 369008 event pairs, 5562 based on Foata normal form. 3495/48421 useless extension candidates. Maximal degree in co-relation 179369. Up to 25673 conditions per place. [2024-11-09 10:32:28,393 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 113 selfloop transitions, 6 changer transitions 2/175 dead transitions. [2024-11-09 10:32:28,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 175 transitions, 2447 flow [2024-11-09 10:32:28,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:32:28,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 10:32:28,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 138 transitions. [2024-11-09 10:32:28,395 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6509433962264151 [2024-11-09 10:32:28,395 INFO L175 Difference]: Start difference. First operand has 100 places, 112 transitions, 1375 flow. Second operand 4 states and 138 transitions. [2024-11-09 10:32:28,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 175 transitions, 2447 flow [2024-11-09 10:32:29,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 175 transitions, 2259 flow, removed 75 selfloop flow, removed 5 redundant places. [2024-11-09 10:32:29,160 INFO L231 Difference]: Finished difference. Result has 96 places, 114 transitions, 1301 flow [2024-11-09 10:32:29,161 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1287, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1301, PETRI_PLACES=96, PETRI_TRANSITIONS=114} [2024-11-09 10:32:29,161 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 36 predicate places. [2024-11-09 10:32:29,162 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 114 transitions, 1301 flow [2024-11-09 10:32:29,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:29,162 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:32:29,162 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:32:29,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 10:32:29,163 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:32:29,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:32:29,163 INFO L85 PathProgramCache]: Analyzing trace with hash 50796556, now seen corresponding path program 1 times [2024-11-09 10:32:29,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:32:29,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496400864] [2024-11-09 10:32:29,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:32:29,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:32:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:32:29,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:32:29,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:32:29,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496400864] [2024-11-09 10:32:29,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496400864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:32:29,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:32:29,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:32:29,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580486371] [2024-11-09 10:32:29,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:32:29,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:32:29,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:32:29,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:32:29,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:32:29,708 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 53 [2024-11-09 10:32:29,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 114 transitions, 1301 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:29,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:32:29,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 53 [2024-11-09 10:32:29,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:32:36,528 INFO L124 PetriNetUnfolderBase]: 33542/54483 cut-off events. [2024-11-09 10:32:36,529 INFO L125 PetriNetUnfolderBase]: For 262912/265452 co-relation queries the response was YES. [2024-11-09 10:32:36,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219927 conditions, 54483 events. 33542/54483 cut-off events. For 262912/265452 co-relation queries the response was YES. Maximal size of possible extension queue 2873. Compared 498477 event pairs, 10339 based on Foata normal form. 911/50958 useless extension candidates. Maximal degree in co-relation 219883. Up to 19467 conditions per place. [2024-11-09 10:32:37,174 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 128 selfloop transitions, 51 changer transitions 27/228 dead transitions. [2024-11-09 10:32:37,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 228 transitions, 2741 flow [2024-11-09 10:32:37,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 10:32:37,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-09 10:32:37,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 323 transitions. [2024-11-09 10:32:37,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6094339622641509 [2024-11-09 10:32:37,177 INFO L175 Difference]: Start difference. First operand has 96 places, 114 transitions, 1301 flow. Second operand 10 states and 323 transitions. [2024-11-09 10:32:37,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 228 transitions, 2741 flow [2024-11-09 10:32:38,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 228 transitions, 2715 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-11-09 10:32:38,122 INFO L231 Difference]: Finished difference. Result has 110 places, 130 transitions, 1724 flow [2024-11-09 10:32:38,122 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1283, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1724, PETRI_PLACES=110, PETRI_TRANSITIONS=130} [2024-11-09 10:32:38,123 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 50 predicate places. [2024-11-09 10:32:38,123 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 130 transitions, 1724 flow [2024-11-09 10:32:38,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:38,123 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:32:38,124 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:32:38,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 10:32:38,124 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:32:38,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:32:38,124 INFO L85 PathProgramCache]: Analyzing trace with hash 4550788, now seen corresponding path program 1 times [2024-11-09 10:32:38,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:32:38,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119332398] [2024-11-09 10:32:38,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:32:38,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:32:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:32:38,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:32:38,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:32:38,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119332398] [2024-11-09 10:32:38,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119332398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:32:38,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:32:38,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:32:38,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065780083] [2024-11-09 10:32:38,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:32:38,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 10:32:38,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:32:38,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 10:32:38,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 10:32:38,817 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-11-09 10:32:38,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 130 transitions, 1724 flow. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:38,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:32:38,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-11-09 10:32:38,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:32:45,299 INFO L124 PetriNetUnfolderBase]: 28411/48658 cut-off events. [2024-11-09 10:32:45,299 INFO L125 PetriNetUnfolderBase]: For 324529/330620 co-relation queries the response was YES. [2024-11-09 10:32:45,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202369 conditions, 48658 events. 28411/48658 cut-off events. For 324529/330620 co-relation queries the response was YES. Maximal size of possible extension queue 2847. Compared 469784 event pairs, 11189 based on Foata normal form. 1560/45739 useless extension candidates. Maximal degree in co-relation 202318. Up to 28942 conditions per place. [2024-11-09 10:32:45,806 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 82 selfloop transitions, 25 changer transitions 28/202 dead transitions. [2024-11-09 10:32:45,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 202 transitions, 2787 flow [2024-11-09 10:32:45,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 10:32:45,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-09 10:32:45,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 257 transitions. [2024-11-09 10:32:45,808 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6061320754716981 [2024-11-09 10:32:45,808 INFO L175 Difference]: Start difference. First operand has 110 places, 130 transitions, 1724 flow. Second operand 8 states and 257 transitions. [2024-11-09 10:32:45,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 202 transitions, 2787 flow [2024-11-09 10:32:47,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 202 transitions, 2623 flow, removed 82 selfloop flow, removed 0 redundant places. [2024-11-09 10:32:47,486 INFO L231 Difference]: Finished difference. Result has 122 places, 145 transitions, 1971 flow [2024-11-09 10:32:47,487 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1638, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1971, PETRI_PLACES=122, PETRI_TRANSITIONS=145} [2024-11-09 10:32:47,487 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 62 predicate places. [2024-11-09 10:32:47,487 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 145 transitions, 1971 flow [2024-11-09 10:32:47,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:47,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:32:47,488 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:32:47,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 10:32:47,488 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-09 10:32:47,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:32:47,489 INFO L85 PathProgramCache]: Analyzing trace with hash -2016975304, now seen corresponding path program 1 times [2024-11-09 10:32:47,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:32:47,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220857330] [2024-11-09 10:32:47,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:32:47,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:32:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:32:48,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:32:48,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:32:48,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220857330] [2024-11-09 10:32:48,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220857330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:32:48,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:32:48,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 10:32:48,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712535606] [2024-11-09 10:32:48,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:32:48,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 10:32:48,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:32:48,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 10:32:48,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 10:32:48,181 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-11-09 10:32:48,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 145 transitions, 1971 flow. Second operand has 9 states, 9 states have (on average 25.88888888888889) internal successors, (233), 9 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:32:48,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:32:48,182 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-11-09 10:32:48,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand