./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/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 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/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 19:00:31,066 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 19:00:31,170 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 19:00:31,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 19:00:31,176 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 19:00:31,205 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 19:00:31,206 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 19:00:31,206 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 19:00:31,207 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 19:00:31,207 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 19:00:31,208 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 19:00:31,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 19:00:31,209 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 19:00:31,209 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 19:00:31,209 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 19:00:31,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 19:00:31,210 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 19:00:31,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 19:00:31,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 19:00:31,211 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 19:00:31,211 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 19:00:31,212 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 19:00:31,212 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 19:00:31,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 19:00:31,213 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 19:00:31,213 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 19:00:31,213 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 19:00:31,214 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 19:00:31,214 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 19:00:31,214 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 19:00:31,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 19:00:31,215 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 19:00:31,216 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 19:00:31,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:00:31,216 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 19:00:31,217 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 19:00:31,217 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 19:00:31,217 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 19:00:31,217 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 19:00:31,217 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 19:00:31,218 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 19:00:31,218 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 19:00:31,218 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 [2024-10-24 19:00:31,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 19:00:31,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 19:00:31,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 19:00:31,476 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 19:00:31,476 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 19:00:31,477 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-10-24 19:00:32,912 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 19:00:33,180 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 19:00:33,181 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-10-24 19:00:33,199 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc9031c0c/3e4fafb4e02642c3a859653a95202c45/FLAG54af7ac48 [2024-10-24 19:00:33,221 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc9031c0c/3e4fafb4e02642c3a859653a95202c45 [2024-10-24 19:00:33,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 19:00:33,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 19:00:33,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 19:00:33,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 19:00:33,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 19:00:33,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:00:33" (1/1) ... [2024-10-24 19:00:33,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@247aaed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:00:33, skipping insertion in model container [2024-10-24 19:00:33,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:00:33" (1/1) ... [2024-10-24 19:00:33,291 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 19:00:33,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:00:33,740 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 19:00:33,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 19:00:33,842 INFO L204 MainTranslator]: Completed translation [2024-10-24 19:00:33,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:00:33 WrapperNode [2024-10-24 19:00:33,843 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 19:00:33,844 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 19:00:33,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 19:00:33,845 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 19:00:33,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:00:33" (1/1) ... [2024-10-24 19:00:33,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:00:33" (1/1) ... [2024-10-24 19:00:33,918 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 148 [2024-10-24 19:00:33,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 19:00:33,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 19:00:33,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 19:00:33,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 19:00:33,934 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:00:33" (1/1) ... [2024-10-24 19:00:33,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:00:33" (1/1) ... [2024-10-24 19:00:33,937 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:00:33" (1/1) ... [2024-10-24 19:00:33,966 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 19:00:33,966 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:00:33" (1/1) ... [2024-10-24 19:00:33,967 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:00:33" (1/1) ... [2024-10-24 19:00:33,976 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:00:33" (1/1) ... [2024-10-24 19:00:33,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:00:33" (1/1) ... [2024-10-24 19:00:33,983 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:00:33" (1/1) ... [2024-10-24 19:00:33,985 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:00:33" (1/1) ... [2024-10-24 19:00:33,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 19:00:33,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 19:00:33,995 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 19:00:33,995 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 19:00:33,996 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:00:33" (1/1) ... [2024-10-24 19:00:34,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 19:00:34,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 19:00:34,032 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 19:00:34,039 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 19:00:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 19:00:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 19:00:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 19:00:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 19:00:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 19:00:34,088 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 19:00:34,088 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 19:00:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 19:00:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-24 19:00:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-24 19:00:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 19:00:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 19:00:34,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 19:00:34,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 19:00:34,091 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 19:00:34,216 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 19:00:34,218 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 19:00:34,541 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 19:00:34,542 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 19:00:34,744 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 19:00:34,745 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 19:00:34,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:00:34 BoogieIcfgContainer [2024-10-24 19:00:34,745 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 19:00:34,748 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 19:00:34,749 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 19:00:34,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 19:00:34,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:00:33" (1/3) ... [2024-10-24 19:00:34,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5c1ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:00:34, skipping insertion in model container [2024-10-24 19:00:34,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:00:33" (2/3) ... [2024-10-24 19:00:34,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f5c1ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:00:34, skipping insertion in model container [2024-10-24 19:00:34,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:00:34" (3/3) ... [2024-10-24 19:00:34,755 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-10-24 19:00:34,772 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 19:00:34,772 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-24 19:00:34,772 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 19:00:34,836 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 19:00:34,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 53 transitions, 122 flow [2024-10-24 19:00:34,901 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2024-10-24 19:00:34,901 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:00:34,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 49 events. 2/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-10-24 19:00:34,907 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 53 transitions, 122 flow [2024-10-24 19:00:34,910 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 49 transitions, 110 flow [2024-10-24 19:00:34,924 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 19:00:34,930 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;@77141761, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 19:00:34,930 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-24 19:00:34,938 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 19:00:34,938 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-10-24 19:00:34,938 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:00:34,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:00:34,939 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:00:34,940 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:00:34,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:00:34,947 INFO L85 PathProgramCache]: Analyzing trace with hash -924434098, now seen corresponding path program 1 times [2024-10-24 19:00:34,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:00:34,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033677890] [2024-10-24 19:00:34,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:00:34,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:00:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:00:35,532 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 19:00:35,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:00:35,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033677890] [2024-10-24 19:00:35,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033677890] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:00:35,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:00:35,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:00:35,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862662533] [2024-10-24 19:00:35,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:00:35,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:00:35,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:00:35,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:00:35,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:00:35,585 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 53 [2024-10-24 19:00:35,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:00:35,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:00:35,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 53 [2024-10-24 19:00:35,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:00:36,098 INFO L124 PetriNetUnfolderBase]: 1047/1835 cut-off events. [2024-10-24 19:00:36,100 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:00:36,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3395 conditions, 1835 events. 1047/1835 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 12952 event pairs, 219 based on Foata normal form. 96/1889 useless extension candidates. Maximal degree in co-relation 3383. Up to 1153 conditions per place. [2024-10-24 19:00:36,123 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 31 selfloop transitions, 2 changer transitions 2/57 dead transitions. [2024-10-24 19:00:36,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 57 transitions, 196 flow [2024-10-24 19:00:36,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:00:36,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:00:36,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-10-24 19:00:36,137 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7421383647798742 [2024-10-24 19:00:36,139 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 110 flow. Second operand 3 states and 118 transitions. [2024-10-24 19:00:36,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 57 transitions, 196 flow [2024-10-24 19:00:36,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 57 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 19:00:36,148 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 100 flow [2024-10-24 19:00:36,151 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-10-24 19:00:36,155 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2024-10-24 19:00:36,157 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 100 flow [2024-10-24 19:00:36,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:00:36,158 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:00:36,158 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 19:00:36,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 19:00:36,159 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:00:36,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:00:36,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1857640590, now seen corresponding path program 1 times [2024-10-24 19:00:36,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:00:36,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643355715] [2024-10-24 19:00:36,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:00:36,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:00:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:00:36,297 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 19:00:36,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:00:36,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643355715] [2024-10-24 19:00:36,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643355715] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:00:36,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:00:36,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 19:00:36,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697774138] [2024-10-24 19:00:36,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:00:36,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 19:00:36,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:00:36,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 19:00:36,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 19:00:36,301 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-10-24 19:00:36,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:00:36,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:00:36,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-10-24 19:00:36,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:00:36,588 INFO L124 PetriNetUnfolderBase]: 931/1611 cut-off events. [2024-10-24 19:00:36,588 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-10-24 19:00:36,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3101 conditions, 1611 events. 931/1611 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 11734 event pairs, 931 based on Foata normal form. 48/1593 useless extension candidates. Maximal degree in co-relation 3091. Up to 1352 conditions per place. [2024-10-24 19:00:36,600 INFO L140 encePairwiseOnDemand]: 51/53 looper letters, 20 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2024-10-24 19:00:36,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 43 transitions, 142 flow [2024-10-24 19:00:36,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 19:00:36,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-24 19:00:36,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-10-24 19:00:36,603 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6163522012578616 [2024-10-24 19:00:36,603 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 98 transitions. [2024-10-24 19:00:36,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 43 transitions, 142 flow [2024-10-24 19:00:36,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-24 19:00:36,607 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2024-10-24 19:00:36,608 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-10-24 19:00:36,608 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2024-10-24 19:00:36,609 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2024-10-24 19:00:36,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:00:36,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:00:36,609 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 19:00:36,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 19:00:36,609 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:00:36,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:00:36,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1857641872, now seen corresponding path program 1 times [2024-10-24 19:00:36,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:00:36,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183486626] [2024-10-24 19:00:36,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:00:36,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:00:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:00:37,554 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 19:00:37,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:00:37,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183486626] [2024-10-24 19:00:37,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183486626] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:00:37,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:00:37,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:00:37,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012869109] [2024-10-24 19:00:37,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:00:37,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:00:37,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:00:37,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:00:37,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:00:37,586 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 53 [2024-10-24 19:00:37,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:00:37,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:00:37,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 53 [2024-10-24 19:00:37,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:00:40,354 INFO L124 PetriNetUnfolderBase]: 12285/19363 cut-off events. [2024-10-24 19:00:40,354 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 19:00:40,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36451 conditions, 19363 events. 12285/19363 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1122. Compared 152880 event pairs, 647 based on Foata normal form. 0/18935 useless extension candidates. Maximal degree in co-relation 36445. Up to 6657 conditions per place. [2024-10-24 19:00:40,486 INFO L140 encePairwiseOnDemand]: 39/53 looper letters, 49 selfloop transitions, 12 changer transitions 100/176 dead transitions. [2024-10-24 19:00:40,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 176 transitions, 690 flow [2024-10-24 19:00:40,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 19:00:40,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-24 19:00:40,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 404 transitions. [2024-10-24 19:00:40,491 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6352201257861635 [2024-10-24 19:00:40,491 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 12 states and 404 transitions. [2024-10-24 19:00:40,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 176 transitions, 690 flow [2024-10-24 19:00:40,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 176 transitions, 689 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-24 19:00:40,499 INFO L231 Difference]: Finished difference. Result has 74 places, 52 transitions, 231 flow [2024-10-24 19:00:40,500 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=231, PETRI_PLACES=74, PETRI_TRANSITIONS=52} [2024-10-24 19:00:40,501 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 14 predicate places. [2024-10-24 19:00:40,501 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 52 transitions, 231 flow [2024-10-24 19:00:40,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:00:40,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:00:40,502 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 19:00:40,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 19:00:40,502 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:00:40,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:00:40,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1560504885, now seen corresponding path program 1 times [2024-10-24 19:00:40,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:00:40,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944386987] [2024-10-24 19:00:40,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:00:40,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:00:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:00:40,805 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 19:00:40,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:00:40,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944386987] [2024-10-24 19:00:40,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944386987] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:00:40,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:00:40,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:00:40,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263525401] [2024-10-24 19:00:40,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:00:40,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:00:40,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:00:40,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:00:40,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:00:40,819 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 53 [2024-10-24 19:00:40,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 52 transitions, 231 flow. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:00:40,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:00:40,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 53 [2024-10-24 19:00:40,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:00:42,885 INFO L124 PetriNetUnfolderBase]: 7519/13171 cut-off events. [2024-10-24 19:00:42,886 INFO L125 PetriNetUnfolderBase]: For 26979/28308 co-relation queries the response was YES. [2024-10-24 19:00:42,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42243 conditions, 13171 events. 7519/13171 cut-off events. For 26979/28308 co-relation queries the response was YES. Maximal size of possible extension queue 810. Compared 110098 event pairs, 2275 based on Foata normal form. 370/13103 useless extension candidates. Maximal degree in co-relation 42225. Up to 7918 conditions per place. [2024-10-24 19:00:43,005 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 42 selfloop transitions, 4 changer transitions 45/114 dead transitions. [2024-10-24 19:00:43,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 114 transitions, 797 flow [2024-10-24 19:00:43,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:00:43,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:00:43,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 237 transitions. [2024-10-24 19:00:43,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6388140161725068 [2024-10-24 19:00:43,009 INFO L175 Difference]: Start difference. First operand has 74 places, 52 transitions, 231 flow. Second operand 7 states and 237 transitions. [2024-10-24 19:00:43,009 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 114 transitions, 797 flow [2024-10-24 19:00:43,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 114 transitions, 731 flow, removed 33 selfloop flow, removed 4 redundant places. [2024-10-24 19:00:43,107 INFO L231 Difference]: Finished difference. Result has 72 places, 55 transitions, 273 flow [2024-10-24 19:00:43,109 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=273, PETRI_PLACES=72, PETRI_TRANSITIONS=55} [2024-10-24 19:00:43,110 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 12 predicate places. [2024-10-24 19:00:43,110 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 55 transitions, 273 flow [2024-10-24 19:00:43,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 5 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:00:43,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:00:43,111 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:00:43,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 19:00:43,112 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:00:43,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:00:43,112 INFO L85 PathProgramCache]: Analyzing trace with hash 852582280, now seen corresponding path program 1 times [2024-10-24 19:00:43,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:00:43,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626717683] [2024-10-24 19:00:43,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:00:43,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:00:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:00:43,850 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 19:00:43,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:00:43,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626717683] [2024-10-24 19:00:43,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626717683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:00:43,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:00:43,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:00:43,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384004708] [2024-10-24 19:00:43,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:00:43,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:00:43,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:00:43,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:00:43,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:00:43,872 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 53 [2024-10-24 19:00:43,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 55 transitions, 273 flow. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:00:43,873 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:00:43,873 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 53 [2024-10-24 19:00:43,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:00:46,208 INFO L124 PetriNetUnfolderBase]: 11217/18235 cut-off events. [2024-10-24 19:00:46,209 INFO L125 PetriNetUnfolderBase]: For 37196/37196 co-relation queries the response was YES. [2024-10-24 19:00:46,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60407 conditions, 18235 events. 11217/18235 cut-off events. For 37196/37196 co-relation queries the response was YES. Maximal size of possible extension queue 1043. Compared 149798 event pairs, 2338 based on Foata normal form. 350/18289 useless extension candidates. Maximal degree in co-relation 60386. Up to 5814 conditions per place. [2024-10-24 19:00:46,348 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 61 selfloop transitions, 24 changer transitions 68/168 dead transitions. [2024-10-24 19:00:46,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 168 transitions, 1209 flow [2024-10-24 19:00:46,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 19:00:46,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 19:00:46,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2024-10-24 19:00:46,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6169811320754717 [2024-10-24 19:00:46,351 INFO L175 Difference]: Start difference. First operand has 72 places, 55 transitions, 273 flow. Second operand 10 states and 327 transitions. [2024-10-24 19:00:46,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 168 transitions, 1209 flow [2024-10-24 19:00:46,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 168 transitions, 1177 flow, removed 13 selfloop flow, removed 3 redundant places. [2024-10-24 19:00:46,479 INFO L231 Difference]: Finished difference. Result has 83 places, 71 transitions, 543 flow [2024-10-24 19:00:46,479 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=543, PETRI_PLACES=83, PETRI_TRANSITIONS=71} [2024-10-24 19:00:46,482 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 23 predicate places. [2024-10-24 19:00:46,482 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 71 transitions, 543 flow [2024-10-24 19:00:46,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:00:46,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:00:46,483 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 19:00:46,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 19:00:46,483 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:00:46,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:00:46,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1983474222, now seen corresponding path program 1 times [2024-10-24 19:00:46,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:00:46,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473936420] [2024-10-24 19:00:46,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:00:46,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:00:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:00:47,343 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 19:00:47,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:00:47,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473936420] [2024-10-24 19:00:47,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473936420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:00:47,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:00:47,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 19:00:47,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184235998] [2024-10-24 19:00:47,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:00:47,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 19:00:47,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:00:47,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 19:00:47,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 19:00:47,353 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-24 19:00:47,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 71 transitions, 543 flow. Second operand has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:00:47,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:00:47,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-24 19:00:47,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:00:49,556 INFO L124 PetriNetUnfolderBase]: 11325/20082 cut-off events. [2024-10-24 19:00:49,557 INFO L125 PetriNetUnfolderBase]: For 87863/88857 co-relation queries the response was YES. [2024-10-24 19:00:49,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75875 conditions, 20082 events. 11325/20082 cut-off events. For 87863/88857 co-relation queries the response was YES. Maximal size of possible extension queue 1298. Compared 183907 event pairs, 3243 based on Foata normal form. 680/19974 useless extension candidates. Maximal degree in co-relation 75846. Up to 11113 conditions per place. [2024-10-24 19:00:49,737 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 41 selfloop transitions, 6 changer transitions 43/128 dead transitions. [2024-10-24 19:00:49,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 128 transitions, 1125 flow [2024-10-24 19:00:49,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 19:00:49,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-24 19:00:49,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2024-10-24 19:00:49,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6145552560646901 [2024-10-24 19:00:49,741 INFO L175 Difference]: Start difference. First operand has 83 places, 71 transitions, 543 flow. Second operand 7 states and 228 transitions. [2024-10-24 19:00:49,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 128 transitions, 1125 flow [2024-10-24 19:00:50,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 128 transitions, 1105 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-10-24 19:00:50,140 INFO L231 Difference]: Finished difference. Result has 84 places, 75 transitions, 617 flow [2024-10-24 19:00:50,141 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=531, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=617, PETRI_PLACES=84, PETRI_TRANSITIONS=75} [2024-10-24 19:00:50,141 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 24 predicate places. [2024-10-24 19:00:50,142 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 75 transitions, 617 flow [2024-10-24 19:00:50,142 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 19:00:50,142 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:00:50,142 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 19:00:50,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 19:00:50,143 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:00:50,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:00:50,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1883622927, now seen corresponding path program 1 times [2024-10-24 19:00:50,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:00:50,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099818122] [2024-10-24 19:00:50,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:00:50,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:00:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:00:51,047 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 19:00:51,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:00:51,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099818122] [2024-10-24 19:00:51,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099818122] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:00:51,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:00:51,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 19:00:51,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671660438] [2024-10-24 19:00:51,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:00:51,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:00:51,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:00:51,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:00:51,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:00:51,063 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 53 [2024-10-24 19:00:51,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 75 transitions, 617 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:00:51,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:00:51,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 53 [2024-10-24 19:00:51,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:00:54,047 INFO L124 PetriNetUnfolderBase]: 14278/23422 cut-off events. [2024-10-24 19:00:54,047 INFO L125 PetriNetUnfolderBase]: For 111216/111216 co-relation queries the response was YES. [2024-10-24 19:00:54,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97266 conditions, 23422 events. 14278/23422 cut-off events. For 111216/111216 co-relation queries the response was YES. Maximal size of possible extension queue 1328. Compared 197189 event pairs, 1529 based on Foata normal form. 435/23737 useless extension candidates. Maximal degree in co-relation 97234. Up to 9247 conditions per place. [2024-10-24 19:00:54,278 INFO L140 encePairwiseOnDemand]: 39/53 looper letters, 79 selfloop transitions, 47 changer transitions 91/231 dead transitions. [2024-10-24 19:00:54,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 231 transitions, 2441 flow [2024-10-24 19:00:54,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 19:00:54,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-24 19:00:54,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 398 transitions. [2024-10-24 19:00:54,281 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5776487663280117 [2024-10-24 19:00:54,281 INFO L175 Difference]: Start difference. First operand has 84 places, 75 transitions, 617 flow. Second operand 13 states and 398 transitions. [2024-10-24 19:00:54,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 231 transitions, 2441 flow [2024-10-24 19:00:54,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 231 transitions, 2405 flow, removed 14 selfloop flow, removed 3 redundant places. [2024-10-24 19:00:54,542 INFO L231 Difference]: Finished difference. Result has 101 places, 102 transitions, 1163 flow [2024-10-24 19:00:54,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1163, PETRI_PLACES=101, PETRI_TRANSITIONS=102} [2024-10-24 19:00:54,543 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 41 predicate places. [2024-10-24 19:00:54,544 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 102 transitions, 1163 flow [2024-10-24 19:00:54,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:00:54,547 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:00:54,547 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 19:00:54,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 19:00:54,548 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:00:54,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:00:54,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1767986703, now seen corresponding path program 2 times [2024-10-24 19:00:54,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:00:54,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459983237] [2024-10-24 19:00:54,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:00:54,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:00:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:00:55,059 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 19:00:55,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:00:55,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459983237] [2024-10-24 19:00:55,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459983237] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:00:55,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:00:55,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:00:55,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544609773] [2024-10-24 19:00:55,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:00:55,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 19:00:55,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:00:55,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 19:00:55,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-24 19:00:55,067 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-24 19:00:55,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 102 transitions, 1163 flow. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:00:55,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:00:55,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-24 19:00:55,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:00:57,457 INFO L124 PetriNetUnfolderBase]: 9918/17495 cut-off events. [2024-10-24 19:00:57,457 INFO L125 PetriNetUnfolderBase]: For 147145/148714 co-relation queries the response was YES. [2024-10-24 19:00:57,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80548 conditions, 17495 events. 9918/17495 cut-off events. For 147145/148714 co-relation queries the response was YES. Maximal size of possible extension queue 1044. Compared 154811 event pairs, 1977 based on Foata normal form. 566/17413 useless extension candidates. Maximal degree in co-relation 80505. Up to 9267 conditions per place. [2024-10-24 19:00:57,646 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 46 selfloop transitions, 22 changer transitions 44/169 dead transitions. [2024-10-24 19:00:57,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 169 transitions, 2077 flow [2024-10-24 19:00:57,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 19:00:57,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-24 19:00:57,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 259 transitions. [2024-10-24 19:00:57,648 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6108490566037735 [2024-10-24 19:00:57,648 INFO L175 Difference]: Start difference. First operand has 101 places, 102 transitions, 1163 flow. Second operand 8 states and 259 transitions. [2024-10-24 19:00:57,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 169 transitions, 2077 flow [2024-10-24 19:00:58,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 169 transitions, 2011 flow, removed 33 selfloop flow, removed 6 redundant places. [2024-10-24 19:00:58,333 INFO L231 Difference]: Finished difference. Result has 100 places, 112 transitions, 1375 flow [2024-10-24 19:00:58,333 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1133, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1375, PETRI_PLACES=100, PETRI_TRANSITIONS=112} [2024-10-24 19:00:58,334 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 40 predicate places. [2024-10-24 19:00:58,334 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 112 transitions, 1375 flow [2024-10-24 19:00:58,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:00:58,335 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:00:58,335 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:00:58,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 19:00:58,336 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:00:58,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:00:58,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1585188850, now seen corresponding path program 1 times [2024-10-24 19:00:58,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:00:58,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70406548] [2024-10-24 19:00:58,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:00:58,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:00:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:00:58,644 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 19:00:58,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:00:58,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70406548] [2024-10-24 19:00:58,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70406548] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:00:58,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:00:58,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 19:00:58,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565320893] [2024-10-24 19:00:58,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:00:58,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 19:00:58,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:00:58,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 19:00:58,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 19:00:58,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-10-24 19:00:58,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 112 transitions, 1375 flow. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:00:58,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:00:58,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-10-24 19:00:58,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:01:04,089 INFO L124 PetriNetUnfolderBase]: 30367/46275 cut-off events. [2024-10-24 19:01:04,089 INFO L125 PetriNetUnfolderBase]: For 307356/323982 co-relation queries the response was YES. [2024-10-24 19:01:04,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179414 conditions, 46275 events. 30367/46275 cut-off events. For 307356/323982 co-relation queries the response was YES. Maximal size of possible extension queue 2163. Compared 369008 event pairs, 5562 based on Foata normal form. 3495/48421 useless extension candidates. Maximal degree in co-relation 179369. Up to 25673 conditions per place. [2024-10-24 19:01:04,479 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 113 selfloop transitions, 6 changer transitions 2/175 dead transitions. [2024-10-24 19:01:04,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 175 transitions, 2447 flow [2024-10-24 19:01:04,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 19:01:04,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-24 19:01:04,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 138 transitions. [2024-10-24 19:01:04,480 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6509433962264151 [2024-10-24 19:01:04,481 INFO L175 Difference]: Start difference. First operand has 100 places, 112 transitions, 1375 flow. Second operand 4 states and 138 transitions. [2024-10-24 19:01:04,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 175 transitions, 2447 flow [2024-10-24 19:01:05,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 175 transitions, 2259 flow, removed 75 selfloop flow, removed 5 redundant places. [2024-10-24 19:01:05,633 INFO L231 Difference]: Finished difference. Result has 96 places, 114 transitions, 1301 flow [2024-10-24 19:01:05,633 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1287, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1301, PETRI_PLACES=96, PETRI_TRANSITIONS=114} [2024-10-24 19:01:05,634 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 36 predicate places. [2024-10-24 19:01:05,634 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 114 transitions, 1301 flow [2024-10-24 19:01:05,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:05,635 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:01:05,635 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:01:05,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 19:01:05,635 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:01:05,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:01:05,636 INFO L85 PathProgramCache]: Analyzing trace with hash 50796556, now seen corresponding path program 1 times [2024-10-24 19:01:05,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:01:05,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327841274] [2024-10-24 19:01:05,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:01:05,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:01:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:01:06,343 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 19:01:06,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:01:06,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327841274] [2024-10-24 19:01:06,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327841274] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:01:06,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:01:06,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:01:06,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398794995] [2024-10-24 19:01:06,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:01:06,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 19:01:06,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:01:06,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 19:01:06,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 19:01:06,364 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 53 [2024-10-24 19:01:06,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 114 transitions, 1301 flow. Second operand has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:06,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:01:06,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 53 [2024-10-24 19:01:06,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 19:01:13,051 INFO L124 PetriNetUnfolderBase]: 33542/54483 cut-off events. [2024-10-24 19:01:13,051 INFO L125 PetriNetUnfolderBase]: For 262912/265452 co-relation queries the response was YES. [2024-10-24 19:01:13,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219927 conditions, 54483 events. 33542/54483 cut-off events. For 262912/265452 co-relation queries the response was YES. Maximal size of possible extension queue 2873. Compared 498477 event pairs, 10339 based on Foata normal form. 911/50958 useless extension candidates. Maximal degree in co-relation 219883. Up to 19467 conditions per place. [2024-10-24 19:01:13,829 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 128 selfloop transitions, 51 changer transitions 27/228 dead transitions. [2024-10-24 19:01:13,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 228 transitions, 2741 flow [2024-10-24 19:01:13,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 19:01:13,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-24 19:01:13,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 323 transitions. [2024-10-24 19:01:13,831 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6094339622641509 [2024-10-24 19:01:13,831 INFO L175 Difference]: Start difference. First operand has 96 places, 114 transitions, 1301 flow. Second operand 10 states and 323 transitions. [2024-10-24 19:01:13,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 228 transitions, 2741 flow [2024-10-24 19:01:14,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 228 transitions, 2715 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-10-24 19:01:14,612 INFO L231 Difference]: Finished difference. Result has 110 places, 130 transitions, 1724 flow [2024-10-24 19:01:14,612 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=1283, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1724, PETRI_PLACES=110, PETRI_TRANSITIONS=130} [2024-10-24 19:01:14,613 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 50 predicate places. [2024-10-24 19:01:14,613 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 130 transitions, 1724 flow [2024-10-24 19:01:14,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.833333333333332) internal successors, (137), 6 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:14,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 19:01:14,614 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 19:01:14,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 19:01:14,614 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-24 19:01:14,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 19:01:14,614 INFO L85 PathProgramCache]: Analyzing trace with hash 4550788, now seen corresponding path program 1 times [2024-10-24 19:01:14,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 19:01:14,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005965877] [2024-10-24 19:01:14,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 19:01:14,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 19:01:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 19:01:15,096 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 19:01:15,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 19:01:15,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005965877] [2024-10-24 19:01:15,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005965877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 19:01:15,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 19:01:15,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 19:01:15,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966622181] [2024-10-24 19:01:15,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 19:01:15,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 19:01:15,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 19:01:15,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 19:01:15,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 19:01:15,100 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-24 19:01:15,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 130 transitions, 1724 flow. Second operand has 7 states, 7 states have (on average 26.142857142857142) internal successors, (183), 7 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 19:01:15,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 19:01:15,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-24 19:01:15,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand