./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 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/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-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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-84cfde4 [2024-10-11 19:36:14,464 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:36:14,553 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:36:14,565 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:36:14,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:36:14,587 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:36:14,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:36:14,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:36:14,589 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:36:14,590 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:36:14,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:36:14,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:36:14,591 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:36:14,592 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:36:14,592 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:36:14,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:36:14,593 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:36:14,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:36:14,593 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:36:14,594 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:36:14,594 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:36:14,594 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:36:14,595 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:36:14,595 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:36:14,595 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:36:14,596 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:36:14,596 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:36:14,596 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:36:14,596 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:36:14,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:36:14,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:36:14,597 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:36:14,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:36:14,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:36:14,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:36:14,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:36:14,599 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:36:14,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:36:14,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:36:14,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:36:14,600 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:36:14,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:36:14,601 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 [2024-10-11 19:36:14,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:36:14,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:36:14,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:36:14,997 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:36:14,997 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:36:14,998 INFO L431 ainManager$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 [2024-10-11 19:36:16,391 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:36:16,677 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:36:16,677 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 [2024-10-11 19:36:16,691 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0de84ecde/b42e70037a1f4fe5a6480610d95aef15/FLAG8ee434034 [2024-10-11 19:36:16,717 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0de84ecde/b42e70037a1f4fe5a6480610d95aef15 [2024-10-11 19:36:16,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:36:16,722 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:36:16,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:36:16,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:36:16,733 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:36:16,733 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:36:16" (1/1) ... [2024-10-11 19:36:16,734 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb84c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:36:16, skipping insertion in model container [2024-10-11 19:36:16,734 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:36:16" (1/1) ... [2024-10-11 19:36:16,794 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:36:17,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:36:17,130 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:36:17,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:36:17,224 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:36:17,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:36:17 WrapperNode [2024-10-11 19:36:17,225 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:36:17,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:36:17,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:36:17,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:36:17,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:36:17" (1/1) ... [2024-10-11 19:36:17,244 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:36:17" (1/1) ... [2024-10-11 19:36:17,268 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 148 [2024-10-11 19:36:17,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:36:17,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:36:17,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:36:17,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:36:17,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:36:17" (1/1) ... [2024-10-11 19:36:17,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:36:17" (1/1) ... [2024-10-11 19:36:17,280 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:36:17" (1/1) ... [2024-10-11 19:36:17,292 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]. [2024-10-11 19:36:17,293 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:36:17" (1/1) ... [2024-10-11 19:36:17,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:36:17" (1/1) ... [2024-10-11 19:36:17,298 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:36:17" (1/1) ... [2024-10-11 19:36:17,299 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:36:17" (1/1) ... [2024-10-11 19:36:17,301 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:36:17" (1/1) ... [2024-10-11 19:36:17,302 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:36:17" (1/1) ... [2024-10-11 19:36:17,304 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:36:17,305 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:36:17,305 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:36:17,305 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:36:17,306 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:36:17" (1/1) ... [2024-10-11 19:36:17,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:36:17,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:36:17,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:36:17,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:36:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 19:36:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:36:17,390 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-11 19:36:17,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-11 19:36:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-11 19:36:17,391 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-11 19:36:17,391 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-11 19:36:17,391 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-11 19:36:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-11 19:36:17,392 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-11 19:36:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 19:36:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 19:36:17,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:36:17,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:36:17,395 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 19:36:17,570 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:36:17,572 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:36:17,813 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 19:36:17,814 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:36:17,990 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:36:17,991 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 19:36:17,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:36:17 BoogieIcfgContainer [2024-10-11 19:36:17,992 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:36:17,994 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:36:17,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:36:17,996 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:36:17,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:36:16" (1/3) ... [2024-10-11 19:36:17,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec61009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:36:17, skipping insertion in model container [2024-10-11 19:36:17,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:36:17" (2/3) ... [2024-10-11 19:36:17,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec61009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:36:17, skipping insertion in model container [2024-10-11 19:36:17,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:36:17" (3/3) ... [2024-10-11 19:36:18,000 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-10-11 19:36:18,016 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:36:18,016 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-11 19:36:18,016 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 19:36:18,071 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-11 19:36:18,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 64 places, 53 transitions, 122 flow [2024-10-11 19:36:18,133 INFO L124 PetriNetUnfolderBase]: 2/49 cut-off events. [2024-10-11 19:36:18,134 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:36:18,138 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. [2024-10-11 19:36:18,138 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 53 transitions, 122 flow [2024-10-11 19:36:18,141 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 49 transitions, 110 flow [2024-10-11 19:36:18,151 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:36:18,156 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;@2a6e62d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:36:18,156 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-11 19:36:18,167 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 19:36:18,168 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-10-11 19:36:18,168 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:36:18,168 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:18,169 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:36:18,170 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:18,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:18,175 INFO L85 PathProgramCache]: Analyzing trace with hash -924434098, now seen corresponding path program 1 times [2024-10-11 19:36:18,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:18,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953430098] [2024-10-11 19:36:18,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:18,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:18,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:18,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:18,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953430098] [2024-10-11 19:36:18,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953430098] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:18,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:18,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:36:18,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088930833] [2024-10-11 19:36:18,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:18,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:36:18,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:18,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:36:18,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:36:18,658 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 53 [2024-10-11 19:36:18,660 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) [2024-10-11 19:36:18,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:18,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 53 [2024-10-11 19:36:18,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:19,033 INFO L124 PetriNetUnfolderBase]: 1047/1835 cut-off events. [2024-10-11 19:36:19,034 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:36:19,041 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. [2024-10-11 19:36:19,051 INFO L140 encePairwiseOnDemand]: 48/53 looper letters, 31 selfloop transitions, 2 changer transitions 2/57 dead transitions. [2024-10-11 19:36:19,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 57 transitions, 196 flow [2024-10-11 19:36:19,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:36:19,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:36:19,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2024-10-11 19:36:19,061 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7421383647798742 [2024-10-11 19:36:19,062 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 110 flow. Second operand 3 states and 118 transitions. [2024-10-11 19:36:19,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 57 transitions, 196 flow [2024-10-11 19:36:19,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 57 transitions, 192 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 19:36:19,069 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 100 flow [2024-10-11 19:36:19,071 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} [2024-10-11 19:36:19,073 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -4 predicate places. [2024-10-11 19:36:19,073 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 100 flow [2024-10-11 19:36:19,074 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) [2024-10-11 19:36:19,074 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:19,074 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:36:19,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 19:36:19,074 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:19,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:19,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1857640590, now seen corresponding path program 1 times [2024-10-11 19:36:19,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:19,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448219608] [2024-10-11 19:36:19,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:19,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:19,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:19,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:19,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:19,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448219608] [2024-10-11 19:36:19,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448219608] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:19,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:19,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:36:19,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687907015] [2024-10-11 19:36:19,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:19,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:36:19,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:19,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:36:19,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:36:19,150 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 53 [2024-10-11 19:36:19,151 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) [2024-10-11 19:36:19,151 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:19,151 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 53 [2024-10-11 19:36:19,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:19,348 INFO L124 PetriNetUnfolderBase]: 931/1611 cut-off events. [2024-10-11 19:36:19,348 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-10-11 19:36:19,351 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. [2024-10-11 19:36:19,356 INFO L140 encePairwiseOnDemand]: 51/53 looper letters, 20 selfloop transitions, 1 changer transitions 1/43 dead transitions. [2024-10-11 19:36:19,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 43 transitions, 142 flow [2024-10-11 19:36:19,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:36:19,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 19:36:19,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 98 transitions. [2024-10-11 19:36:19,359 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6163522012578616 [2024-10-11 19:36:19,360 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 98 transitions. [2024-10-11 19:36:19,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 43 transitions, 142 flow [2024-10-11 19:36:19,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 43 transitions, 138 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 19:36:19,364 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 94 flow [2024-10-11 19:36:19,366 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} [2024-10-11 19:36:19,366 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2024-10-11 19:36:19,366 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 94 flow [2024-10-11 19:36:19,367 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) [2024-10-11 19:36:19,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:19,367 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:36:19,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 19:36:19,367 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:19,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:19,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1857641872, now seen corresponding path program 1 times [2024-10-11 19:36:19,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:19,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804246922] [2024-10-11 19:36:19,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:19,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:20,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:20,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:20,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804246922] [2024-10-11 19:36:20,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804246922] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:20,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:20,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:36:20,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944922537] [2024-10-11 19:36:20,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:20,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:36:20,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:20,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:36:20,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:36:20,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 53 [2024-10-11 19:36:20,199 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) [2024-10-11 19:36:20,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:20,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 53 [2024-10-11 19:36:20,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:22,203 INFO L124 PetriNetUnfolderBase]: 12285/19363 cut-off events. [2024-10-11 19:36:22,203 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 19:36:22,238 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. [2024-10-11 19:36:22,420 INFO L140 encePairwiseOnDemand]: 39/53 looper letters, 49 selfloop transitions, 12 changer transitions 100/176 dead transitions. [2024-10-11 19:36:22,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 176 transitions, 690 flow [2024-10-11 19:36:22,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 19:36:22,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 19:36:22,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 404 transitions. [2024-10-11 19:36:22,423 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6352201257861635 [2024-10-11 19:36:22,423 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 94 flow. Second operand 12 states and 404 transitions. [2024-10-11 19:36:22,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 176 transitions, 690 flow [2024-10-11 19:36:22,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 176 transitions, 689 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 19:36:22,428 INFO L231 Difference]: Finished difference. Result has 74 places, 52 transitions, 231 flow [2024-10-11 19:36:22,428 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} [2024-10-11 19:36:22,429 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 14 predicate places. [2024-10-11 19:36:22,430 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 52 transitions, 231 flow [2024-10-11 19:36:22,431 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) [2024-10-11 19:36:22,431 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:22,431 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:36:22,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 19:36:22,431 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:22,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:22,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1560504885, now seen corresponding path program 1 times [2024-10-11 19:36:22,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:22,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870548396] [2024-10-11 19:36:22,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:22,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:22,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:22,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:22,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870548396] [2024-10-11 19:36:22,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870548396] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:22,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:22,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:36:22,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486479454] [2024-10-11 19:36:22,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:22,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:36:22,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:22,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:36:22,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:36:22,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 53 [2024-10-11 19:36:22,614 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) [2024-10-11 19:36:22,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:22,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 53 [2024-10-11 19:36:22,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:24,361 INFO L124 PetriNetUnfolderBase]: 7519/13171 cut-off events. [2024-10-11 19:36:24,362 INFO L125 PetriNetUnfolderBase]: For 26979/28308 co-relation queries the response was YES. [2024-10-11 19:36:24,422 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. [2024-10-11 19:36:24,499 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 42 selfloop transitions, 4 changer transitions 45/114 dead transitions. [2024-10-11 19:36:24,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 114 transitions, 797 flow [2024-10-11 19:36:24,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:36:24,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:36:24,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 237 transitions. [2024-10-11 19:36:24,504 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6388140161725068 [2024-10-11 19:36:24,504 INFO L175 Difference]: Start difference. First operand has 74 places, 52 transitions, 231 flow. Second operand 7 states and 237 transitions. [2024-10-11 19:36:24,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 114 transitions, 797 flow [2024-10-11 19:36:24,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 114 transitions, 731 flow, removed 33 selfloop flow, removed 4 redundant places. [2024-10-11 19:36:24,585 INFO L231 Difference]: Finished difference. Result has 72 places, 55 transitions, 273 flow [2024-10-11 19:36:24,586 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} [2024-10-11 19:36:24,587 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 12 predicate places. [2024-10-11 19:36:24,588 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 55 transitions, 273 flow [2024-10-11 19:36:24,588 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) [2024-10-11 19:36:24,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:24,590 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] [2024-10-11 19:36:24,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 19:36:24,591 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:24,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:24,591 INFO L85 PathProgramCache]: Analyzing trace with hash 852582280, now seen corresponding path program 1 times [2024-10-11 19:36:24,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:24,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24450546] [2024-10-11 19:36:24,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:24,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:25,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:25,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:25,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24450546] [2024-10-11 19:36:25,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24450546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:25,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:25,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:36:25,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648614975] [2024-10-11 19:36:25,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:25,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:36:25,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:25,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:36:25,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:36:25,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 53 [2024-10-11 19:36:25,242 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) [2024-10-11 19:36:25,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:25,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 53 [2024-10-11 19:36:25,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:28,174 INFO L124 PetriNetUnfolderBase]: 11217/18235 cut-off events. [2024-10-11 19:36:28,174 INFO L125 PetriNetUnfolderBase]: For 37196/37196 co-relation queries the response was YES. [2024-10-11 19:36:28,233 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. [2024-10-11 19:36:28,306 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 61 selfloop transitions, 24 changer transitions 68/168 dead transitions. [2024-10-11 19:36:28,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 168 transitions, 1209 flow [2024-10-11 19:36:28,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:36:28,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:36:28,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 327 transitions. [2024-10-11 19:36:28,308 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6169811320754717 [2024-10-11 19:36:28,308 INFO L175 Difference]: Start difference. First operand has 72 places, 55 transitions, 273 flow. Second operand 10 states and 327 transitions. [2024-10-11 19:36:28,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 168 transitions, 1209 flow [2024-10-11 19:36:28,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 168 transitions, 1177 flow, removed 13 selfloop flow, removed 3 redundant places. [2024-10-11 19:36:28,378 INFO L231 Difference]: Finished difference. Result has 83 places, 71 transitions, 543 flow [2024-10-11 19:36:28,378 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} [2024-10-11 19:36:28,379 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 23 predicate places. [2024-10-11 19:36:28,380 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 71 transitions, 543 flow [2024-10-11 19:36:28,380 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) [2024-10-11 19:36:28,380 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:28,381 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] [2024-10-11 19:36:28,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 19:36:28,381 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:28,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:28,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1983474222, now seen corresponding path program 1 times [2024-10-11 19:36:28,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:28,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085390416] [2024-10-11 19:36:28,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:28,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:28,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:28,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:28,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085390416] [2024-10-11 19:36:28,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085390416] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:28,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:28,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:36:28,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192938540] [2024-10-11 19:36:28,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:28,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:36:28,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:28,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:36:28,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:36:28,888 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-11 19:36:28,889 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) [2024-10-11 19:36:28,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:28,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-11 19:36:28,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:31,675 INFO L124 PetriNetUnfolderBase]: 11325/20082 cut-off events. [2024-10-11 19:36:31,676 INFO L125 PetriNetUnfolderBase]: For 87863/88857 co-relation queries the response was YES. [2024-10-11 19:36:31,823 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. [2024-10-11 19:36:32,031 INFO L140 encePairwiseOnDemand]: 47/53 looper letters, 41 selfloop transitions, 6 changer transitions 43/128 dead transitions. [2024-10-11 19:36:32,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 128 transitions, 1125 flow [2024-10-11 19:36:32,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 19:36:32,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 19:36:32,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2024-10-11 19:36:32,037 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6145552560646901 [2024-10-11 19:36:32,037 INFO L175 Difference]: Start difference. First operand has 83 places, 71 transitions, 543 flow. Second operand 7 states and 228 transitions. [2024-10-11 19:36:32,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 128 transitions, 1125 flow [2024-10-11 19:36:32,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 128 transitions, 1105 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-10-11 19:36:32,305 INFO L231 Difference]: Finished difference. Result has 84 places, 75 transitions, 617 flow [2024-10-11 19:36:32,306 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} [2024-10-11 19:36:32,307 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 24 predicate places. [2024-10-11 19:36:32,308 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 75 transitions, 617 flow [2024-10-11 19:36:32,308 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) [2024-10-11 19:36:32,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:32,308 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] [2024-10-11 19:36:32,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 19:36:32,308 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:32,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:32,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1883622927, now seen corresponding path program 1 times [2024-10-11 19:36:32,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:32,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410698612] [2024-10-11 19:36:32,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:32,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:32,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:32,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:32,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410698612] [2024-10-11 19:36:32,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410698612] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:32,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:32,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 19:36:32,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007970710] [2024-10-11 19:36:32,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:32,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:36:32,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:32,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:36:32,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:36:32,908 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 53 [2024-10-11 19:36:32,909 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) [2024-10-11 19:36:32,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:32,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 53 [2024-10-11 19:36:32,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:36,357 INFO L124 PetriNetUnfolderBase]: 14278/23422 cut-off events. [2024-10-11 19:36:36,361 INFO L125 PetriNetUnfolderBase]: For 111216/111216 co-relation queries the response was YES. [2024-10-11 19:36:36,482 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. [2024-10-11 19:36:36,567 INFO L140 encePairwiseOnDemand]: 39/53 looper letters, 79 selfloop transitions, 47 changer transitions 91/231 dead transitions. [2024-10-11 19:36:36,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 231 transitions, 2441 flow [2024-10-11 19:36:36,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 19:36:36,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-11 19:36:36,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 398 transitions. [2024-10-11 19:36:36,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5776487663280117 [2024-10-11 19:36:36,570 INFO L175 Difference]: Start difference. First operand has 84 places, 75 transitions, 617 flow. Second operand 13 states and 398 transitions. [2024-10-11 19:36:36,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 231 transitions, 2441 flow [2024-10-11 19:36:36,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 231 transitions, 2405 flow, removed 14 selfloop flow, removed 3 redundant places. [2024-10-11 19:36:36,788 INFO L231 Difference]: Finished difference. Result has 101 places, 102 transitions, 1163 flow [2024-10-11 19:36:36,791 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} [2024-10-11 19:36:36,792 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 41 predicate places. [2024-10-11 19:36:36,792 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 102 transitions, 1163 flow [2024-10-11 19:36:36,792 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) [2024-10-11 19:36:36,792 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:36,792 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] [2024-10-11 19:36:36,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 19:36:36,792 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:36,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:36,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1767986703, now seen corresponding path program 2 times [2024-10-11 19:36:36,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:36,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964154010] [2024-10-11 19:36:36,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:36,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:37,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:37,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:37,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964154010] [2024-10-11 19:36:37,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964154010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:37,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:37,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:36:37,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665358355] [2024-10-11 19:36:37,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:37,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:36:37,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:37,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:36:37,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:36:37,296 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-11 19:36:37,297 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) [2024-10-11 19:36:37,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:37,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-11 19:36:37,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:40,222 INFO L124 PetriNetUnfolderBase]: 9918/17495 cut-off events. [2024-10-11 19:36:40,222 INFO L125 PetriNetUnfolderBase]: For 147145/148714 co-relation queries the response was YES. [2024-10-11 19:36:40,374 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. [2024-10-11 19:36:40,459 INFO L140 encePairwiseOnDemand]: 45/53 looper letters, 46 selfloop transitions, 22 changer transitions 44/169 dead transitions. [2024-10-11 19:36:40,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 169 transitions, 2077 flow [2024-10-11 19:36:40,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:36:40,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:36:40,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 259 transitions. [2024-10-11 19:36:40,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6108490566037735 [2024-10-11 19:36:40,461 INFO L175 Difference]: Start difference. First operand has 101 places, 102 transitions, 1163 flow. Second operand 8 states and 259 transitions. [2024-10-11 19:36:40,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 169 transitions, 2077 flow [2024-10-11 19:36:41,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 169 transitions, 2011 flow, removed 33 selfloop flow, removed 6 redundant places. [2024-10-11 19:36:41,131 INFO L231 Difference]: Finished difference. Result has 100 places, 112 transitions, 1375 flow [2024-10-11 19:36:41,132 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} [2024-10-11 19:36:41,132 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 40 predicate places. [2024-10-11 19:36:41,133 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 112 transitions, 1375 flow [2024-10-11 19:36:41,133 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) [2024-10-11 19:36:41,133 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:41,133 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] [2024-10-11 19:36:41,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 19:36:41,134 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:41,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:41,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1585188850, now seen corresponding path program 1 times [2024-10-11 19:36:41,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:41,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102204932] [2024-10-11 19:36:41,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:41,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:41,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:41,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:41,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102204932] [2024-10-11 19:36:41,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102204932] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:41,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:41,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:36:41,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925746485] [2024-10-11 19:36:41,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:41,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:36:41,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:41,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:36:41,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:36:41,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 53 [2024-10-11 19:36:41,302 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) [2024-10-11 19:36:41,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:41,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 53 [2024-10-11 19:36:41,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:36:49,142 INFO L124 PetriNetUnfolderBase]: 30367/46275 cut-off events. [2024-10-11 19:36:49,143 INFO L125 PetriNetUnfolderBase]: For 307356/323982 co-relation queries the response was YES. [2024-10-11 19:36:49,810 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. [2024-10-11 19:36:50,659 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 113 selfloop transitions, 6 changer transitions 2/175 dead transitions. [2024-10-11 19:36:50,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 175 transitions, 2447 flow [2024-10-11 19:36:50,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:36:50,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 19:36:50,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 138 transitions. [2024-10-11 19:36:50,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6509433962264151 [2024-10-11 19:36:50,663 INFO L175 Difference]: Start difference. First operand has 100 places, 112 transitions, 1375 flow. Second operand 4 states and 138 transitions. [2024-10-11 19:36:50,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 175 transitions, 2447 flow [2024-10-11 19:36:51,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 175 transitions, 2259 flow, removed 75 selfloop flow, removed 5 redundant places. [2024-10-11 19:36:51,825 INFO L231 Difference]: Finished difference. Result has 96 places, 114 transitions, 1301 flow [2024-10-11 19:36:51,825 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} [2024-10-11 19:36:51,826 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 36 predicate places. [2024-10-11 19:36:51,829 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 114 transitions, 1301 flow [2024-10-11 19:36:51,829 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) [2024-10-11 19:36:51,829 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:36:51,829 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] [2024-10-11 19:36:51,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 19:36:51,830 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:36:51,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:36:51,830 INFO L85 PathProgramCache]: Analyzing trace with hash 50796556, now seen corresponding path program 1 times [2024-10-11 19:36:51,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:36:51,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281764741] [2024-10-11 19:36:51,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:36:51,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:36:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:36:52,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:36:52,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:36:52,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281764741] [2024-10-11 19:36:52,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281764741] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:36:52,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:36:52,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:36:52,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809024460] [2024-10-11 19:36:52,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:36:52,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 19:36:52,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:36:52,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 19:36:52,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:36:52,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 53 [2024-10-11 19:36:52,705 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) [2024-10-11 19:36:52,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:36:52,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 53 [2024-10-11 19:36:52,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:37:03,774 INFO L124 PetriNetUnfolderBase]: 33542/54483 cut-off events. [2024-10-11 19:37:03,775 INFO L125 PetriNetUnfolderBase]: For 262912/265452 co-relation queries the response was YES. [2024-10-11 19:37:04,518 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. [2024-10-11 19:37:04,706 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 128 selfloop transitions, 51 changer transitions 27/228 dead transitions. [2024-10-11 19:37:04,706 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 228 transitions, 2741 flow [2024-10-11 19:37:04,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:37:04,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 19:37:04,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 323 transitions. [2024-10-11 19:37:04,708 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6094339622641509 [2024-10-11 19:37:04,709 INFO L175 Difference]: Start difference. First operand has 96 places, 114 transitions, 1301 flow. Second operand 10 states and 323 transitions. [2024-10-11 19:37:04,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 228 transitions, 2741 flow [2024-10-11 19:37:06,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 228 transitions, 2715 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-10-11 19:37:06,360 INFO L231 Difference]: Finished difference. Result has 110 places, 130 transitions, 1724 flow [2024-10-11 19:37:06,360 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} [2024-10-11 19:37:06,361 INFO L277 CegarLoopForPetriNet]: 60 programPoint places, 50 predicate places. [2024-10-11 19:37:06,361 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 130 transitions, 1724 flow [2024-10-11 19:37:06,362 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) [2024-10-11 19:37:06,362 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 19:37:06,362 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] [2024-10-11 19:37:06,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 19:37:06,362 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-11 19:37:06,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:37:06,363 INFO L85 PathProgramCache]: Analyzing trace with hash 4550788, now seen corresponding path program 1 times [2024-10-11 19:37:06,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 19:37:06,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423917627] [2024-10-11 19:37:06,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:37:06,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 19:37:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:37:06,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:37:06,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 19:37:06,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423917627] [2024-10-11 19:37:06,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423917627] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:37:06,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:37:06,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 19:37:06,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317353077] [2024-10-11 19:37:06,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:37:06,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 19:37:06,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 19:37:06,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 19:37:06,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 19:37:06,962 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 53 [2024-10-11 19:37:06,962 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) [2024-10-11 19:37:06,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 19:37:06,962 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 53 [2024-10-11 19:37:06,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 19:37:15,464 INFO L124 PetriNetUnfolderBase]: 28411/48658 cut-off events. [2024-10-11 19:37:15,465 INFO L125 PetriNetUnfolderBase]: For 324529/330620 co-relation queries the response was YES. [2024-10-11 19:37:16,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202369 conditions, 48658 events. 28411/48658 cut-off events. For 324529/330620 co-relation queries the response was YES. Maximal size of possible extension queue 2847. Compared 469784 event pairs, 11189 based on Foata normal form. 1560/45739 useless extension candidates. Maximal degree in co-relation 202318. Up to 28942 conditions per place. [2024-10-11 19:37:16,207 INFO L140 encePairwiseOnDemand]: 46/53 looper letters, 82 selfloop transitions, 25 changer transitions 28/202 dead transitions. [2024-10-11 19:37:16,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 202 transitions, 2787 flow [2024-10-11 19:37:16,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 19:37:16,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 19:37:16,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 257 transitions. [2024-10-11 19:37:16,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6061320754716981 [2024-10-11 19:37:16,208 INFO L175 Difference]: Start difference. First operand has 110 places, 130 transitions, 1724 flow. Second operand 8 states and 257 transitions. [2024-10-11 19:37:16,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 202 transitions, 2787 flow