./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.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 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:04:04,057 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:04:04,127 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 19:04:04,131 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:04:04,131 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:04:04,153 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:04:04,153 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:04:04,154 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:04:04,154 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:04:04,157 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:04:04,157 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:04:04,157 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:04:04,157 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:04:04,158 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:04:04,159 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:04:04,159 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:04:04,159 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:04:04,159 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:04:04,159 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:04:04,160 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:04:04,160 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:04:04,160 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:04:04,160 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:04:04,160 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:04:04,161 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:04:04,161 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:04:04,161 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:04:04,161 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:04:04,162 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:04:04,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:04:04,162 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:04:04,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:04:04,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:04:04,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:04:04,163 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:04:04,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:04:04,164 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:04:04,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:04:04,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:04:04,165 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:04:04,165 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:04:04,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:04:04,165 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4633300b13c3e317f8d3cd1cc05f3f76ba271ffedabaa8599cd9617354fa2b7b [2024-10-24 19:04:04,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:04:04,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:04:04,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:04:04,383 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:04:04,383 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:04:04,385 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 19:04:05,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:04:05,783 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:04:05,784 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 19:04:05,794 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23e9eecc5/4d278476be3b4ed29a11da519c0291c1/FLAG1c4e41839 [2024-10-24 19:04:05,807 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23e9eecc5/4d278476be3b4ed29a11da519c0291c1 [2024-10-24 19:04:05,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:04:05,811 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:04:05,814 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:04:05,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:04:05,818 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:04:05,819 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:04:05" (1/1) ... [2024-10-24 19:04:05,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30acd1e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:05, skipping insertion in model container [2024-10-24 19:04:05,821 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:04:05" (1/1) ... [2024-10-24 19:04:05,859 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:04:06,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:04:06,211 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:04:06,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:04:06,298 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:04:06,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:06 WrapperNode [2024-10-24 19:04:06,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:04:06,300 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:04:06,300 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:04:06,300 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:04:06,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:06" (1/1) ... [2024-10-24 19:04:06,315 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:06" (1/1) ... [2024-10-24 19:04:06,333 INFO L138 Inliner]: procedures = 176, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2024-10-24 19:04:06,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:04:06,334 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:04:06,335 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:04:06,335 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:04:06,343 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:06" (1/1) ... [2024-10-24 19:04:06,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:06" (1/1) ... [2024-10-24 19:04:06,346 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:06" (1/1) ... [2024-10-24 19:04:06,365 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]. [2024-10-24 19:04:06,369 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:06" (1/1) ... [2024-10-24 19:04:06,369 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:06" (1/1) ... [2024-10-24 19:04:06,372 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:06" (1/1) ... [2024-10-24 19:04:06,374 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:06" (1/1) ... [2024-10-24 19:04:06,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:06" (1/1) ... [2024-10-24 19:04:06,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:06" (1/1) ... [2024-10-24 19:04:06,382 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:04:06,387 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:04:06,387 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:04:06,387 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:04:06,387 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:06" (1/1) ... [2024-10-24 19:04:06,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:04:06,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:04:06,412 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) [2024-10-24 19:04:06,414 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 [2024-10-24 19:04:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 19:04:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:04:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 19:04:06,447 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 19:04:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 19:04:06,447 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 19:04:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 19:04:06,447 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 19:04:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-24 19:04:06,447 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-24 19:04:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 19:04:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 19:04:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:04:06,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:04:06,448 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 19:04:06,545 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:04:06,547 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:04:06,667 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:04:06,669 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:04:06,740 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:04:06,740 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 19:04:06,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:04:06 BoogieIcfgContainer [2024-10-24 19:04:06,740 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:04:06,742 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:04:06,742 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:04:06,745 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:04:06,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:04:05" (1/3) ... [2024-10-24 19:04:06,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3e32cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:04:06, skipping insertion in model container [2024-10-24 19:04:06,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:04:06" (2/3) ... [2024-10-24 19:04:06,746 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3e32cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:04:06, skipping insertion in model container [2024-10-24 19:04:06,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:04:06" (3/3) ... [2024-10-24 19:04:06,747 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-10-24 19:04:06,759 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:04:06,759 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 19:04:06,759 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:04:06,789 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 19:04:06,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 50 transitions, 116 flow [2024-10-24 19:04:06,843 INFO L124 PetriNetUnfolderBase]: 2/46 cut-off events. [2024-10-24 19:04:06,845 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:04:06,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 2/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2024-10-24 19:04:06,848 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 50 transitions, 116 flow [2024-10-24 19:04:06,851 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 45 transitions, 102 flow [2024-10-24 19:04:06,862 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:04:06,869 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;@3b39554a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:04:06,869 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-24 19:04:06,882 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:04:06,882 INFO L124 PetriNetUnfolderBase]: 2/43 cut-off events. [2024-10-24 19:04:06,882 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:04:06,883 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:06,883 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:04:06,884 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:04:06,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:06,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1736773628, now seen corresponding path program 1 times [2024-10-24 19:04:06,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:06,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718752205] [2024-10-24 19:04:06,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:06,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:07,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:04:07,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:07,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718752205] [2024-10-24 19:04:07,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718752205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:07,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:07,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:04:07,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186691127] [2024-10-24 19:04:07,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:07,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:04:07,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:07,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:04:07,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:04:07,146 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 50 [2024-10-24 19:04:07,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-10-24 19:04:07,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:07,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 50 [2024-10-24 19:04:07,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:07,268 INFO L124 PetriNetUnfolderBase]: 211/497 cut-off events. [2024-10-24 19:04:07,268 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:04:07,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 869 conditions, 497 events. 211/497 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3110 event pairs, 211 based on Foata normal form. 48/501 useless extension candidates. Maximal degree in co-relation 857. Up to 336 conditions per place. [2024-10-24 19:04:07,275 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 15 selfloop transitions, 1 changer transitions 1/41 dead transitions. [2024-10-24 19:04:07,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 41 transitions, 128 flow [2024-10-24 19:04:07,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:04:07,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:04:07,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-10-24 19:04:07,285 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6933333333333334 [2024-10-24 19:04:07,287 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 102 flow. Second operand 3 states and 104 transitions. [2024-10-24 19:04:07,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 41 transitions, 128 flow [2024-10-24 19:04:07,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 41 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 19:04:07,293 INFO L231 Difference]: Finished difference. Result has 52 places, 40 transitions, 90 flow [2024-10-24 19:04:07,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=52, PETRI_TRANSITIONS=40} [2024-10-24 19:04:07,298 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -4 predicate places. [2024-10-24 19:04:07,299 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 40 transitions, 90 flow [2024-10-24 19:04:07,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-10-24 19:04:07,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:07,301 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:04:07,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:04:07,302 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:04:07,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:07,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1736774980, now seen corresponding path program 1 times [2024-10-24 19:04:07,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:07,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480857731] [2024-10-24 19:04:07,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:07,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:07,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:04:07,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:07,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480857731] [2024-10-24 19:04:07,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480857731] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:07,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:07,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:04:07,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409016419] [2024-10-24 19:04:07,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:07,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:04:07,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:07,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:04:07,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:04:07,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-10-24 19:04:07,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-10-24 19:04:07,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:07,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-10-24 19:04:07,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:08,219 INFO L124 PetriNetUnfolderBase]: 3489/5971 cut-off events. [2024-10-24 19:04:08,220 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:04:08,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11083 conditions, 5971 events. 3489/5971 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 47564 event pairs, 992 based on Foata normal form. 0/5764 useless extension candidates. Maximal degree in co-relation 11077. Up to 2191 conditions per place. [2024-10-24 19:04:08,248 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 34 selfloop transitions, 6 changer transitions 57/114 dead transitions. [2024-10-24 19:04:08,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 114 transitions, 438 flow [2024-10-24 19:04:08,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:04:08,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:04:08,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 297 transitions. [2024-10-24 19:04:08,252 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.66 [2024-10-24 19:04:08,252 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 90 flow. Second operand 9 states and 297 transitions. [2024-10-24 19:04:08,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 114 transitions, 438 flow [2024-10-24 19:04:08,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 114 transitions, 437 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 19:04:08,255 INFO L231 Difference]: Finished difference. Result has 64 places, 43 transitions, 153 flow [2024-10-24 19:04:08,256 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=153, PETRI_PLACES=64, PETRI_TRANSITIONS=43} [2024-10-24 19:04:08,256 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 8 predicate places. [2024-10-24 19:04:08,256 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 43 transitions, 153 flow [2024-10-24 19:04:08,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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) [2024-10-24 19:04:08,257 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:08,257 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:04:08,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 19:04:08,257 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:04:08,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:08,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1270427387, now seen corresponding path program 1 times [2024-10-24 19:04:08,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:08,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648364807] [2024-10-24 19:04:08,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:08,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:08,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:04:08,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:08,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648364807] [2024-10-24 19:04:08,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648364807] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:08,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:08,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:04:08,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398684858] [2024-10-24 19:04:08,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:08,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:04:08,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:08,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:04:08,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:04:08,453 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-10-24 19:04:08,454 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 43 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 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) [2024-10-24 19:04:08,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:08,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-10-24 19:04:08,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:08,920 INFO L124 PetriNetUnfolderBase]: 2463/4329 cut-off events. [2024-10-24 19:04:08,920 INFO L125 PetriNetUnfolderBase]: For 5145/5145 co-relation queries the response was YES. [2024-10-24 19:04:08,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12034 conditions, 4329 events. 2463/4329 cut-off events. For 5145/5145 co-relation queries the response was YES. Maximal size of possible extension queue 369. Compared 33501 event pairs, 393 based on Foata normal form. 120/4402 useless extension candidates. Maximal degree in co-relation 12021. Up to 1685 conditions per place. [2024-10-24 19:04:08,979 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 41 selfloop transitions, 7 changer transitions 48/113 dead transitions. [2024-10-24 19:04:08,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 113 transitions, 673 flow [2024-10-24 19:04:08,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 19:04:08,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 19:04:08,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 316 transitions. [2024-10-24 19:04:08,981 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.632 [2024-10-24 19:04:08,981 INFO L175 Difference]: Start difference. First operand has 64 places, 43 transitions, 153 flow. Second operand 10 states and 316 transitions. [2024-10-24 19:04:08,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 113 transitions, 673 flow [2024-10-24 19:04:09,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 113 transitions, 607 flow, removed 25 selfloop flow, removed 4 redundant places. [2024-10-24 19:04:09,012 INFO L231 Difference]: Finished difference. Result has 70 places, 45 transitions, 192 flow [2024-10-24 19:04:09,012 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=192, PETRI_PLACES=70, PETRI_TRANSITIONS=45} [2024-10-24 19:04:09,012 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 14 predicate places. [2024-10-24 19:04:09,013 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 45 transitions, 192 flow [2024-10-24 19:04:09,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 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) [2024-10-24 19:04:09,013 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:09,013 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:04:09,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 19:04:09,014 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:04:09,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:09,015 INFO L85 PathProgramCache]: Analyzing trace with hash -2124321323, now seen corresponding path program 1 times [2024-10-24 19:04:09,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:09,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570003177] [2024-10-24 19:04:09,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:09,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:09,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:04:09,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:09,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570003177] [2024-10-24 19:04:09,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570003177] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:09,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:09,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:04:09,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625880424] [2024-10-24 19:04:09,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:09,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:04:09,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:09,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:04:09,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:04:09,121 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 50 [2024-10-24 19:04:09,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 45 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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) [2024-10-24 19:04:09,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:09,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 50 [2024-10-24 19:04:09,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:09,403 INFO L124 PetriNetUnfolderBase]: 1420/2848 cut-off events. [2024-10-24 19:04:09,403 INFO L125 PetriNetUnfolderBase]: For 4488/4566 co-relation queries the response was YES. [2024-10-24 19:04:09,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7752 conditions, 2848 events. 1420/2848 cut-off events. For 4488/4566 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 22600 event pairs, 550 based on Foata normal form. 138/2802 useless extension candidates. Maximal degree in co-relation 7733. Up to 1266 conditions per place. [2024-10-24 19:04:09,420 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 27 selfloop transitions, 4 changer transitions 21/77 dead transitions. [2024-10-24 19:04:09,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 77 transitions, 408 flow [2024-10-24 19:04:09,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:04:09,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:04:09,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 232 transitions. [2024-10-24 19:04:09,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6628571428571428 [2024-10-24 19:04:09,422 INFO L175 Difference]: Start difference. First operand has 70 places, 45 transitions, 192 flow. Second operand 7 states and 232 transitions. [2024-10-24 19:04:09,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 77 transitions, 408 flow [2024-10-24 19:04:09,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 77 transitions, 372 flow, removed 12 selfloop flow, removed 6 redundant places. [2024-10-24 19:04:09,434 INFO L231 Difference]: Finished difference. Result has 69 places, 45 transitions, 192 flow [2024-10-24 19:04:09,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=192, PETRI_PLACES=69, PETRI_TRANSITIONS=45} [2024-10-24 19:04:09,435 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 13 predicate places. [2024-10-24 19:04:09,435 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 45 transitions, 192 flow [2024-10-24 19:04:09,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 5 states have internal predecessors, (143), 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) [2024-10-24 19:04:09,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:09,435 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] [2024-10-24 19:04:09,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 19:04:09,436 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:04:09,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:09,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1810228762, now seen corresponding path program 1 times [2024-10-24 19:04:09,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:09,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041762587] [2024-10-24 19:04:09,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:09,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:09,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:04:09,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:09,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041762587] [2024-10-24 19:04:09,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041762587] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:09,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:09,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:04:09,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896318534] [2024-10-24 19:04:09,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:09,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 19:04:09,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:09,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 19:04:09,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 19:04:09,564 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-10-24 19:04:09,565 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 45 transitions, 192 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2024-10-24 19:04:09,565 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:09,565 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-10-24 19:04:09,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:10,084 INFO L124 PetriNetUnfolderBase]: 2501/4607 cut-off events. [2024-10-24 19:04:10,084 INFO L125 PetriNetUnfolderBase]: For 5001/5007 co-relation queries the response was YES. [2024-10-24 19:04:10,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12399 conditions, 4607 events. 2501/4607 cut-off events. For 5001/5007 co-relation queries the response was YES. Maximal size of possible extension queue 392. Compared 38137 event pairs, 473 based on Foata normal form. 92/4614 useless extension candidates. Maximal degree in co-relation 12379. Up to 1252 conditions per place. [2024-10-24 19:04:10,103 INFO L140 encePairwiseOnDemand]: 42/50 looper letters, 43 selfloop transitions, 8 changer transitions 41/109 dead transitions. [2024-10-24 19:04:10,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 109 transitions, 683 flow [2024-10-24 19:04:10,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:04:10,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:04:10,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 282 transitions. [2024-10-24 19:04:10,105 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6266666666666667 [2024-10-24 19:04:10,105 INFO L175 Difference]: Start difference. First operand has 69 places, 45 transitions, 192 flow. Second operand 9 states and 282 transitions. [2024-10-24 19:04:10,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 109 transitions, 683 flow [2024-10-24 19:04:10,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 109 transitions, 641 flow, removed 16 selfloop flow, removed 8 redundant places. [2024-10-24 19:04:10,121 INFO L231 Difference]: Finished difference. Result has 71 places, 47 transitions, 226 flow [2024-10-24 19:04:10,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=226, PETRI_PLACES=71, PETRI_TRANSITIONS=47} [2024-10-24 19:04:10,121 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 15 predicate places. [2024-10-24 19:04:10,122 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 47 transitions, 226 flow [2024-10-24 19:04:10,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2024-10-24 19:04:10,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:10,122 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] [2024-10-24 19:04:10,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 19:04:10,122 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:04:10,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:10,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1501491575, now seen corresponding path program 1 times [2024-10-24 19:04:10,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:10,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775913918] [2024-10-24 19:04:10,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:10,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:10,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:04:10,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:10,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775913918] [2024-10-24 19:04:10,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775913918] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:10,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:10,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:04:10,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714587642] [2024-10-24 19:04:10,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:10,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 19:04:10,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:10,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 19:04:10,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 19:04:10,253 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 50 [2024-10-24 19:04:10,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 47 transitions, 226 flow. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 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) [2024-10-24 19:04:10,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:10,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 50 [2024-10-24 19:04:10,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:10,712 INFO L124 PetriNetUnfolderBase]: 2976/5372 cut-off events. [2024-10-24 19:04:10,712 INFO L125 PetriNetUnfolderBase]: For 9567/9567 co-relation queries the response was YES. [2024-10-24 19:04:10,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15602 conditions, 5372 events. 2976/5372 cut-off events. For 9567/9567 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 41534 event pairs, 617 based on Foata normal form. 108/5419 useless extension candidates. Maximal degree in co-relation 15582. Up to 1342 conditions per place. [2024-10-24 19:04:10,738 INFO L140 encePairwiseOnDemand]: 40/50 looper letters, 51 selfloop transitions, 10 changer transitions 56/133 dead transitions. [2024-10-24 19:04:10,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 133 transitions, 974 flow [2024-10-24 19:04:10,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 19:04:10,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-24 19:04:10,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 285 transitions. [2024-10-24 19:04:10,740 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-10-24 19:04:10,740 INFO L175 Difference]: Start difference. First operand has 71 places, 47 transitions, 226 flow. Second operand 9 states and 285 transitions. [2024-10-24 19:04:10,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 133 transitions, 974 flow [2024-10-24 19:04:10,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 133 transitions, 860 flow, removed 37 selfloop flow, removed 6 redundant places. [2024-10-24 19:04:10,763 INFO L231 Difference]: Finished difference. Result has 75 places, 47 transitions, 232 flow [2024-10-24 19:04:10,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=232, PETRI_PLACES=75, PETRI_TRANSITIONS=47} [2024-10-24 19:04:10,764 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 19 predicate places. [2024-10-24 19:04:10,765 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 47 transitions, 232 flow [2024-10-24 19:04:10,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 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) [2024-10-24 19:04:10,765 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:10,765 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] [2024-10-24 19:04:10,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 19:04:10,766 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:04:10,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:10,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1188726388, now seen corresponding path program 1 times [2024-10-24 19:04:10,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:10,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308118155] [2024-10-24 19:04:10,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:10,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:10,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:04:10,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:10,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308118155] [2024-10-24 19:04:10,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308118155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:10,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:10,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:04:10,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495036393] [2024-10-24 19:04:10,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:10,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:04:10,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:10,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:04:10,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:04:10,890 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-10-24 19:04:10,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 47 transitions, 232 flow. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 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) [2024-10-24 19:04:10,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:10,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-10-24 19:04:10,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:11,149 INFO L124 PetriNetUnfolderBase]: 1657/3073 cut-off events. [2024-10-24 19:04:11,149 INFO L125 PetriNetUnfolderBase]: For 4297/4297 co-relation queries the response was YES. [2024-10-24 19:04:11,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8761 conditions, 3073 events. 1657/3073 cut-off events. For 4297/4297 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 22814 event pairs, 294 based on Foata normal form. 60/3045 useless extension candidates. Maximal degree in co-relation 8739. Up to 1114 conditions per place. [2024-10-24 19:04:11,161 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 38 selfloop transitions, 7 changer transitions 26/88 dead transitions. [2024-10-24 19:04:11,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 88 transitions, 542 flow [2024-10-24 19:04:11,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:04:11,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:04:11,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 245 transitions. [2024-10-24 19:04:11,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6125 [2024-10-24 19:04:11,163 INFO L175 Difference]: Start difference. First operand has 75 places, 47 transitions, 232 flow. Second operand 8 states and 245 transitions. [2024-10-24 19:04:11,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 88 transitions, 542 flow [2024-10-24 19:04:11,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 88 transitions, 488 flow, removed 16 selfloop flow, removed 9 redundant places. [2024-10-24 19:04:11,175 INFO L231 Difference]: Finished difference. Result has 74 places, 46 transitions, 219 flow [2024-10-24 19:04:11,175 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=219, PETRI_PLACES=74, PETRI_TRANSITIONS=46} [2024-10-24 19:04:11,175 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 18 predicate places. [2024-10-24 19:04:11,176 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 46 transitions, 219 flow [2024-10-24 19:04:11,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 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) [2024-10-24 19:04:11,176 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:11,176 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] [2024-10-24 19:04:11,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 19:04:11,176 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:04:11,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:11,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1809726284, now seen corresponding path program 1 times [2024-10-24 19:04:11,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:11,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700141064] [2024-10-24 19:04:11,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:11,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:11,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:04:11,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:11,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700141064] [2024-10-24 19:04:11,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700141064] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:11,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:11,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:04:11,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652648558] [2024-10-24 19:04:11,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:11,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:04:11,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:11,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:04:11,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:04:11,258 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-10-24 19:04:11,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 46 transitions, 219 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2024-10-24 19:04:11,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:11,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-10-24 19:04:11,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:11,669 INFO L124 PetriNetUnfolderBase]: 4847/7976 cut-off events. [2024-10-24 19:04:11,669 INFO L125 PetriNetUnfolderBase]: For 4070/4208 co-relation queries the response was YES. [2024-10-24 19:04:11,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17630 conditions, 7976 events. 4847/7976 cut-off events. For 4070/4208 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 58420 event pairs, 1462 based on Foata normal form. 305/7980 useless extension candidates. Maximal degree in co-relation 17609. Up to 4161 conditions per place. [2024-10-24 19:04:11,706 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 33 selfloop transitions, 6 changer transitions 0/64 dead transitions. [2024-10-24 19:04:11,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 64 transitions, 337 flow [2024-10-24 19:04:11,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:04:11,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 19:04:11,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2024-10-24 19:04:11,708 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.685 [2024-10-24 19:04:11,708 INFO L175 Difference]: Start difference. First operand has 74 places, 46 transitions, 219 flow. Second operand 4 states and 137 transitions. [2024-10-24 19:04:11,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 64 transitions, 337 flow [2024-10-24 19:04:11,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 64 transitions, 312 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-10-24 19:04:11,725 INFO L231 Difference]: Finished difference. Result has 69 places, 51 transitions, 240 flow [2024-10-24 19:04:11,725 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=240, PETRI_PLACES=69, PETRI_TRANSITIONS=51} [2024-10-24 19:04:11,725 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 13 predicate places. [2024-10-24 19:04:11,726 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 51 transitions, 240 flow [2024-10-24 19:04:11,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2024-10-24 19:04:11,726 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:11,726 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, 1] [2024-10-24 19:04:11,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 19:04:11,726 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:04:11,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:11,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1859025279, now seen corresponding path program 1 times [2024-10-24 19:04:11,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:11,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485222998] [2024-10-24 19:04:11,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:11,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:11,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:04:11,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:11,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485222998] [2024-10-24 19:04:11,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485222998] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:11,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:11,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:04:11,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482528161] [2024-10-24 19:04:11,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:11,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:04:11,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:11,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:04:11,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:04:11,814 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-10-24 19:04:11,814 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 51 transitions, 240 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) [2024-10-24 19:04:11,816 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:11,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-10-24 19:04:11,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:12,324 INFO L124 PetriNetUnfolderBase]: 4577/7528 cut-off events. [2024-10-24 19:04:12,324 INFO L125 PetriNetUnfolderBase]: For 4117/5612 co-relation queries the response was YES. [2024-10-24 19:04:12,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19081 conditions, 7528 events. 4577/7528 cut-off events. For 4117/5612 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 53336 event pairs, 796 based on Foata normal form. 311/7574 useless extension candidates. Maximal degree in co-relation 19062. Up to 3225 conditions per place. [2024-10-24 19:04:12,366 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 41 selfloop transitions, 10 changer transitions 0/76 dead transitions. [2024-10-24 19:04:12,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 76 transitions, 417 flow [2024-10-24 19:04:12,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 19:04:12,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-24 19:04:12,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2024-10-24 19:04:12,368 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.692 [2024-10-24 19:04:12,368 INFO L175 Difference]: Start difference. First operand has 69 places, 51 transitions, 240 flow. Second operand 5 states and 173 transitions. [2024-10-24 19:04:12,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 76 transitions, 417 flow [2024-10-24 19:04:12,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 76 transitions, 408 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-24 19:04:12,375 INFO L231 Difference]: Finished difference. Result has 73 places, 56 transitions, 299 flow [2024-10-24 19:04:12,375 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=299, PETRI_PLACES=73, PETRI_TRANSITIONS=56} [2024-10-24 19:04:12,376 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 17 predicate places. [2024-10-24 19:04:12,376 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 56 transitions, 299 flow [2024-10-24 19:04:12,376 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) [2024-10-24 19:04:12,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:12,377 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, 1, 1, 1] [2024-10-24 19:04:12,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 19:04:12,377 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:04:12,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:12,377 INFO L85 PathProgramCache]: Analyzing trace with hash -867369020, now seen corresponding path program 1 times [2024-10-24 19:04:12,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:12,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406936896] [2024-10-24 19:04:12,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:12,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:12,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:04:12,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:12,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406936896] [2024-10-24 19:04:12,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406936896] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:12,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:12,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:04:12,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5427805] [2024-10-24 19:04:12,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:12,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:04:12,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:12,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:04:12,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:04:12,475 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-10-24 19:04:12,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 56 transitions, 299 flow. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2024-10-24 19:04:12,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:12,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-10-24 19:04:12,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:12,887 INFO L124 PetriNetUnfolderBase]: 3809/6148 cut-off events. [2024-10-24 19:04:12,888 INFO L125 PetriNetUnfolderBase]: For 7561/9988 co-relation queries the response was YES. [2024-10-24 19:04:12,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18448 conditions, 6148 events. 3809/6148 cut-off events. For 7561/9988 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 40300 event pairs, 232 based on Foata normal form. 294/6233 useless extension candidates. Maximal degree in co-relation 18427. Up to 2864 conditions per place. [2024-10-24 19:04:12,919 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 49 selfloop transitions, 14 changer transitions 0/88 dead transitions. [2024-10-24 19:04:12,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 88 transitions, 534 flow [2024-10-24 19:04:12,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:04:12,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 19:04:12,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 209 transitions. [2024-10-24 19:04:12,920 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6966666666666667 [2024-10-24 19:04:12,920 INFO L175 Difference]: Start difference. First operand has 73 places, 56 transitions, 299 flow. Second operand 6 states and 209 transitions. [2024-10-24 19:04:12,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 88 transitions, 534 flow [2024-10-24 19:04:12,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 88 transitions, 518 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-24 19:04:12,925 INFO L231 Difference]: Finished difference. Result has 78 places, 61 transitions, 369 flow [2024-10-24 19:04:12,925 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=369, PETRI_PLACES=78, PETRI_TRANSITIONS=61} [2024-10-24 19:04:12,925 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 22 predicate places. [2024-10-24 19:04:12,925 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 61 transitions, 369 flow [2024-10-24 19:04:12,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2024-10-24 19:04:12,926 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:12,926 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, 1, 1, 1, 1, 1, 1] [2024-10-24 19:04:12,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 19:04:12,926 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:04:12,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:12,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1071106731, now seen corresponding path program 1 times [2024-10-24 19:04:12,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:12,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740742320] [2024-10-24 19:04:12,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:12,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:04:13,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:13,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740742320] [2024-10-24 19:04:13,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740742320] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:13,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:13,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:04:13,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557012054] [2024-10-24 19:04:13,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:13,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:04:13,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:13,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:04:13,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:04:13,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 50 [2024-10-24 19:04:13,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 61 transitions, 369 flow. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 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) [2024-10-24 19:04:13,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:13,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 50 [2024-10-24 19:04:13,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:13,398 INFO L124 PetriNetUnfolderBase]: 2742/5378 cut-off events. [2024-10-24 19:04:13,398 INFO L125 PetriNetUnfolderBase]: For 9252/10516 co-relation queries the response was YES. [2024-10-24 19:04:13,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16428 conditions, 5378 events. 2742/5378 cut-off events. For 9252/10516 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 44335 event pairs, 624 based on Foata normal form. 128/4848 useless extension candidates. Maximal degree in co-relation 16405. Up to 2121 conditions per place. [2024-10-24 19:04:13,427 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 35 selfloop transitions, 3 changer transitions 10/89 dead transitions. [2024-10-24 19:04:13,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 89 transitions, 559 flow [2024-10-24 19:04:13,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 19:04:13,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-24 19:04:13,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 198 transitions. [2024-10-24 19:04:13,428 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.66 [2024-10-24 19:04:13,428 INFO L175 Difference]: Start difference. First operand has 78 places, 61 transitions, 369 flow. Second operand 6 states and 198 transitions. [2024-10-24 19:04:13,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 89 transitions, 559 flow [2024-10-24 19:04:13,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 89 transitions, 528 flow, removed 8 selfloop flow, removed 3 redundant places. [2024-10-24 19:04:13,440 INFO L231 Difference]: Finished difference. Result has 84 places, 62 transitions, 365 flow [2024-10-24 19:04:13,441 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=365, PETRI_PLACES=84, PETRI_TRANSITIONS=62} [2024-10-24 19:04:13,441 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 28 predicate places. [2024-10-24 19:04:13,441 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 62 transitions, 365 flow [2024-10-24 19:04:13,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 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) [2024-10-24 19:04:13,442 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:04:13,442 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, 1, 1, 1, 1, 1, 1] [2024-10-24 19:04:13,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 19:04:13,442 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-10-24 19:04:13,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:04:13,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1750482248, now seen corresponding path program 1 times [2024-10-24 19:04:13,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:04:13,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910133718] [2024-10-24 19:04:13,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:04:13,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:04:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:04:13,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 19:04:13,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:04:13,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910133718] [2024-10-24 19:04:13,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910133718] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:04:13,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:04:13,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:04:13,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845893851] [2024-10-24 19:04:13,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:04:13,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 19:04:13,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:04:13,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 19:04:13,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 19:04:13,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 50 [2024-10-24 19:04:13,527 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 62 transitions, 365 flow. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2024-10-24 19:04:13,527 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:04:13,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 50 [2024-10-24 19:04:13,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:04:13,959 INFO L124 PetriNetUnfolderBase]: 4106/6332 cut-off events. [2024-10-24 19:04:13,959 INFO L125 PetriNetUnfolderBase]: For 11593/14291 co-relation queries the response was YES. [2024-10-24 19:04:13,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20229 conditions, 6332 events. 4106/6332 cut-off events. For 11593/14291 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 40874 event pairs, 143 based on Foata normal form. 280/6374 useless extension candidates. Maximal degree in co-relation 20209. Up to 2728 conditions per place. [2024-10-24 19:04:13,973 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 0 selfloop transitions, 0 changer transitions 86/86 dead transitions. [2024-10-24 19:04:13,973 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 86 transitions, 535 flow [2024-10-24 19:04:13,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:04:13,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:04:13,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 233 transitions. [2024-10-24 19:04:13,974 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6657142857142857 [2024-10-24 19:04:13,975 INFO L175 Difference]: Start difference. First operand has 84 places, 62 transitions, 365 flow. Second operand 7 states and 233 transitions. [2024-10-24 19:04:13,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 86 transitions, 535 flow [2024-10-24 19:04:13,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 86 transitions, 502 flow, removed 10 selfloop flow, removed 7 redundant places. [2024-10-24 19:04:13,984 INFO L231 Difference]: Finished difference. Result has 76 places, 0 transitions, 0 flow [2024-10-24 19:04:13,984 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=76, PETRI_TRANSITIONS=0} [2024-10-24 19:04:13,985 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 20 predicate places. [2024-10-24 19:04:13,985 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 0 transitions, 0 flow [2024-10-24 19:04:13,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2024-10-24 19:04:13,988 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (5 of 6 remaining) [2024-10-24 19:04:13,988 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 6 remaining) [2024-10-24 19:04:13,988 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-10-24 19:04:13,988 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-10-24 19:04:13,989 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-10-24 19:04:13,989 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 6 remaining) [2024-10-24 19:04:13,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 19:04:13,989 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:04:13,994 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-24 19:04:13,994 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 19:04:13,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:04:13 BasicIcfg [2024-10-24 19:04:13,999 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 19:04:14,000 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 19:04:14,000 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 19:04:14,000 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 19:04:14,000 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:04:06" (3/4) ... [2024-10-24 19:04:14,003 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 19:04:14,006 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-10-24 19:04:14,006 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-10-24 19:04:14,006 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-10-24 19:04:14,006 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-10-24 19:04:14,010 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2024-10-24 19:04:14,011 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-24 19:04:14,011 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-24 19:04:14,011 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-24 19:04:14,074 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 19:04:14,075 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 19:04:14,075 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 19:04:14,075 INFO L158 Benchmark]: Toolchain (without parser) took 8264.09ms. Allocated memory was 182.5MB in the beginning and 847.2MB in the end (delta: 664.8MB). Free memory was 124.6MB in the beginning and 673.5MB in the end (delta: -548.9MB). Peak memory consumption was 115.4MB. Max. memory is 16.1GB. [2024-10-24 19:04:14,075 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 19:04:14,076 INFO L158 Benchmark]: CACSL2BoogieTranslator took 485.38ms. Allocated memory is still 182.5MB. Free memory was 124.6MB in the beginning and 142.8MB in the end (delta: -18.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-24 19:04:14,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.42ms. Allocated memory is still 182.5MB. Free memory was 142.8MB in the beginning and 140.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:04:14,076 INFO L158 Benchmark]: Boogie Preprocessor took 52.48ms. Allocated memory is still 182.5MB. Free memory was 140.7MB in the beginning and 138.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 19:04:14,076 INFO L158 Benchmark]: RCFGBuilder took 354.00ms. Allocated memory is still 182.5MB. Free memory was 138.6MB in the beginning and 117.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-24 19:04:14,076 INFO L158 Benchmark]: TraceAbstraction took 7257.20ms. Allocated memory was 182.5MB in the beginning and 847.2MB in the end (delta: 664.8MB). Free memory was 116.6MB in the beginning and 677.7MB in the end (delta: -561.1MB). Peak memory consumption was 598.6MB. Max. memory is 16.1GB. [2024-10-24 19:04:14,077 INFO L158 Benchmark]: Witness Printer took 75.00ms. Allocated memory is still 847.2MB. Free memory was 677.7MB in the beginning and 673.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 19:04:14,078 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 485.38ms. Allocated memory is still 182.5MB. Free memory was 124.6MB in the beginning and 142.8MB in the end (delta: -18.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.42ms. Allocated memory is still 182.5MB. Free memory was 142.8MB in the beginning and 140.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.48ms. Allocated memory is still 182.5MB. Free memory was 140.7MB in the beginning and 138.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 354.00ms. Allocated memory is still 182.5MB. Free memory was 138.6MB in the beginning and 117.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 7257.20ms. Allocated memory was 182.5MB in the beginning and 847.2MB in the end (delta: 664.8MB). Free memory was 116.6MB in the beginning and 677.7MB in the end (delta: -561.1MB). Peak memory consumption was 598.6MB. Max. memory is 16.1GB. * Witness Printer took 75.00ms. Allocated memory is still 847.2MB. Free memory was 677.7MB in the beginning and 673.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 786]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 79 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.2s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 627 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 596 mSDsluCounter, 241 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 180 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1264 IncrementalHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 61 mSDtfsCounter, 1264 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=369occurred in iteration=10, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 272 ConstructedInterpolants, 0 QuantifiedInterpolants, 1050 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-24 19:04:14,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE