./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/mix008_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 773055aaa90ff8ec223993b190a157a4b1c15a4828ef014894ca730726d954aa --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:27:48,755 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:27:48,828 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:27:48,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:27:48,836 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:27:48,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:27:48,883 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:27:48,883 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:27:48,883 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:27:48,884 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:27:48,887 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:27:48,887 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:27:48,888 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:27:48,888 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:27:48,888 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:27:48,889 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:27:48,889 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:27:48,889 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:27:48,890 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:27:48,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:27:48,892 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:27:48,893 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:27:48,894 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:27:48,894 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:27:48,895 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:27:48,896 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:27:48,896 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:27:48,896 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:27:48,896 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:27:48,897 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:27:48,897 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:27:48,897 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:27:48,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:27:48,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:27:48,898 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:27:48,898 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:27:48,898 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:27:48,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:27:48,899 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:27:48,902 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:27:48,903 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:27:48,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:27:48,904 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 773055aaa90ff8ec223993b190a157a4b1c15a4828ef014894ca730726d954aa [2024-10-14 19:27:49,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:27:49,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:27:49,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:27:49,183 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:27:49,184 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:27:49,185 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2024-10-14 19:27:50,612 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:27:50,878 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:27:50,878 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008_power.oepc_pso.oepc_rmo.oepc.i [2024-10-14 19:27:50,896 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1db315ff/87c718b12dd14dd3b474034b4a2a6298/FLAG7f6369dc6 [2024-10-14 19:27:50,910 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1db315ff/87c718b12dd14dd3b474034b4a2a6298 [2024-10-14 19:27:50,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:27:50,913 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:27:50,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:27:50,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:27:50,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:27:50,920 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:27:50" (1/1) ... [2024-10-14 19:27:50,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@503f34d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:27:50, skipping insertion in model container [2024-10-14 19:27:50,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:27:50" (1/1) ... [2024-10-14 19:27:50,976 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:27:51,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:27:51,410 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:27:51,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:27:51,548 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:27:51,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:27:51 WrapperNode [2024-10-14 19:27:51,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:27:51,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:27:51,550 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:27:51,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:27:51,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:27:51" (1/1) ... [2024-10-14 19:27:51,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:27:51" (1/1) ... [2024-10-14 19:27:51,616 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 132 [2024-10-14 19:27:51,619 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:27:51,620 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:27:51,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:27:51,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:27:51,631 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:27:51" (1/1) ... [2024-10-14 19:27:51,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:27:51" (1/1) ... [2024-10-14 19:27:51,635 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:27:51" (1/1) ... [2024-10-14 19:27:51,656 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]. [2024-10-14 19:27:51,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:27:51" (1/1) ... [2024-10-14 19:27:51,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:27:51" (1/1) ... [2024-10-14 19:27:51,664 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:27:51" (1/1) ... [2024-10-14 19:27:51,666 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:27:51" (1/1) ... [2024-10-14 19:27:51,668 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:27:51" (1/1) ... [2024-10-14 19:27:51,669 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:27:51" (1/1) ... [2024-10-14 19:27:51,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:27:51,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:27:51,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:27:51,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:27:51,676 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:27:51" (1/1) ... [2024-10-14 19:27:51,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:27:51,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:27:51,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 19:27:51,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 19:27:51,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 19:27:51,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:27:51,789 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-14 19:27:51,789 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-14 19:27:51,789 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-14 19:27:51,789 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-14 19:27:51,789 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-14 19:27:51,790 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-14 19:27:51,790 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-14 19:27:51,790 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-14 19:27:51,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 19:27:51,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 19:27:51,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:27:51,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:27:51,792 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:27:51,964 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:27:51,966 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:27:52,308 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:27:52,310 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:27:52,510 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:27:52,510 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 19:27:52,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:27:52 BoogieIcfgContainer [2024-10-14 19:27:52,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:27:52,515 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:27:52,516 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:27:52,519 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:27:52,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:27:50" (1/3) ... [2024-10-14 19:27:52,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a87b51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:27:52, skipping insertion in model container [2024-10-14 19:27:52,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:27:51" (2/3) ... [2024-10-14 19:27:52,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a87b51f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:27:52, skipping insertion in model container [2024-10-14 19:27:52,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:27:52" (3/3) ... [2024-10-14 19:27:52,523 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008_power.oepc_pso.oepc_rmo.oepc.i [2024-10-14 19:27:52,539 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:27:52,539 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-10-14 19:27:52,539 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:27:52,602 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-14 19:27:52,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-10-14 19:27:52,676 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-10-14 19:27:52,677 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:27:52,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 2/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 103 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2024-10-14 19:27:52,685 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-10-14 19:27:52,688 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-10-14 19:27:52,700 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:27:52,706 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;@3e494224, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:27:52,707 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-14 19:27:52,710 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:27:52,711 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-10-14 19:27:52,711 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:27:52,711 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:27:52,712 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-14 19:27:52,712 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:27:52,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:27:52,719 INFO L85 PathProgramCache]: Analyzing trace with hash 12865631, now seen corresponding path program 1 times [2024-10-14 19:27:52,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:27:52,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299743803] [2024-10-14 19:27:52,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:27:52,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:27:52,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:27:53,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:27:53,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:27:53,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299743803] [2024-10-14 19:27:53,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299743803] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:27:53,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:27:53,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:27:53,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120444539] [2024-10-14 19:27:53,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:27:53,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:27:53,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:27:53,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:27:53,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:27:53,294 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 55 [2024-10-14 19:27:53,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-10-14 19:27:53,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:27:53,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 55 [2024-10-14 19:27:53,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:27:54,451 INFO L124 PetriNetUnfolderBase]: 3311/5200 cut-off events. [2024-10-14 19:27:54,452 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-10-14 19:27:54,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9880 conditions, 5200 events. 3311/5200 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 321. Compared 33766 event pairs, 2177 based on Foata normal form. 288/5441 useless extension candidates. Maximal degree in co-relation 9868. Up to 3661 conditions per place. [2024-10-14 19:27:54,507 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 41 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2024-10-14 19:27:54,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 67 transitions, 245 flow [2024-10-14 19:27:54,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:27:54,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:27:54,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 128 transitions. [2024-10-14 19:27:54,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7757575757575758 [2024-10-14 19:27:54,523 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 128 transitions. [2024-10-14 19:27:54,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 67 transitions, 245 flow [2024-10-14 19:27:54,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 67 transitions, 238 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-14 19:27:54,533 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-10-14 19:27:54,537 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2024-10-14 19:27:54,543 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-10-14 19:27:54,543 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-10-14 19:27:54,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 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) [2024-10-14 19:27:54,544 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:27:54,544 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:27:54,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 19:27:54,544 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:27:54,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:27:54,546 INFO L85 PathProgramCache]: Analyzing trace with hash -2133401607, now seen corresponding path program 1 times [2024-10-14 19:27:54,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:27:54,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574067834] [2024-10-14 19:27:54,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:27:54,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:27:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:27:54,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:27:54,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:27:54,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574067834] [2024-10-14 19:27:54,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574067834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:27:54,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:27:54,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-14 19:27:54,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903284723] [2024-10-14 19:27:54,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:27:54,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 19:27:54,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:27:54,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 19:27:54,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 19:27:54,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 55 [2024-10-14 19:27:54,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-10-14 19:27:54,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:27:54,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 55 [2024-10-14 19:27:54,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:27:55,471 INFO L124 PetriNetUnfolderBase]: 2903/4923 cut-off events. [2024-10-14 19:27:55,471 INFO L125 PetriNetUnfolderBase]: For 278/278 co-relation queries the response was YES. [2024-10-14 19:27:55,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9327 conditions, 4923 events. 2903/4923 cut-off events. For 278/278 co-relation queries the response was YES. Maximal size of possible extension queue 305. Compared 35203 event pairs, 2903 based on Foata normal form. 144/4897 useless extension candidates. Maximal degree in co-relation 9317. Up to 4016 conditions per place. [2024-10-14 19:27:55,506 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 22 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-10-14 19:27:55,507 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 150 flow [2024-10-14 19:27:55,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 19:27:55,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-14 19:27:55,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-10-14 19:27:55,509 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-10-14 19:27:55,509 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 100 transitions. [2024-10-14 19:27:55,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 150 flow [2024-10-14 19:27:55,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 146 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-14 19:27:55,511 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-10-14 19:27:55,512 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=56, PETRI_TRANSITIONS=44} [2024-10-14 19:27:55,512 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-10-14 19:27:55,513 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-10-14 19:27:55,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2024-10-14 19:27:55,513 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:27:55,513 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:27:55,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 19:27:55,514 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:27:55,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:27:55,516 INFO L85 PathProgramCache]: Analyzing trace with hash -2133400387, now seen corresponding path program 1 times [2024-10-14 19:27:55,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:27:55,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586707170] [2024-10-14 19:27:55,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:27:55,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:27:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:27:55,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:27:55,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:27:55,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586707170] [2024-10-14 19:27:55,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586707170] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:27:55,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:27:55,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 19:27:55,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471985760] [2024-10-14 19:27:55,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:27:55,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:27:55,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:27:55,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:27:55,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:27:55,879 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-10-14 19:27:55,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-10-14 19:27:55,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:27:55,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-10-14 19:27:55,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:28:02,936 INFO L124 PetriNetUnfolderBase]: 46399/66391 cut-off events. [2024-10-14 19:28:02,936 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-14 19:28:03,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128923 conditions, 66391 events. 46399/66391 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2703. Compared 486512 event pairs, 10672 based on Foata normal form. 0/64859 useless extension candidates. Maximal degree in co-relation 128917. Up to 24355 conditions per place. [2024-10-14 19:28:03,302 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 48 selfloop transitions, 9 changer transitions 109/178 dead transitions. [2024-10-14 19:28:03,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 178 transitions, 702 flow [2024-10-14 19:28:03,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 19:28:03,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-14 19:28:03,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 321 transitions. [2024-10-14 19:28:03,307 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6484848484848484 [2024-10-14 19:28:03,307 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 9 states and 321 transitions. [2024-10-14 19:28:03,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 178 transitions, 702 flow [2024-10-14 19:28:03,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 178 transitions, 701 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-14 19:28:03,316 INFO L231 Difference]: Finished difference. Result has 70 places, 51 transitions, 221 flow [2024-10-14 19:28:03,316 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=221, PETRI_PLACES=70, PETRI_TRANSITIONS=51} [2024-10-14 19:28:03,317 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 8 predicate places. [2024-10-14 19:28:03,318 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 51 transitions, 221 flow [2024-10-14 19:28:03,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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) [2024-10-14 19:28:03,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:28:03,319 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:28:03,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 19:28:03,319 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:28:03,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:28:03,321 INFO L85 PathProgramCache]: Analyzing trace with hash -465878052, now seen corresponding path program 1 times [2024-10-14 19:28:03,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:28:03,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516470205] [2024-10-14 19:28:03,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:28:03,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:28:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:28:03,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:28:03,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:28:03,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516470205] [2024-10-14 19:28:03,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516470205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:28:03,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:28:03,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:28:03,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642731647] [2024-10-14 19:28:03,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:28:03,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:28:03,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:28:03,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:28:03,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:28:03,585 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-10-14 19:28:03,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 51 transitions, 221 flow. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-10-14 19:28:03,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:28:03,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-10-14 19:28:03,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:28:09,332 INFO L124 PetriNetUnfolderBase]: 33090/48570 cut-off events. [2024-10-14 19:28:09,332 INFO L125 PetriNetUnfolderBase]: For 74105/75819 co-relation queries the response was YES. [2024-10-14 19:28:09,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146736 conditions, 48570 events. 33090/48570 cut-off events. For 74105/75819 co-relation queries the response was YES. Maximal size of possible extension queue 1935. Compared 360173 event pairs, 4838 based on Foata normal form. 1373/49787 useless extension candidates. Maximal degree in co-relation 146721. Up to 16625 conditions per place. [2024-10-14 19:28:09,636 INFO L140 encePairwiseOnDemand]: 44/55 looper letters, 68 selfloop transitions, 9 changer transitions 106/195 dead transitions. [2024-10-14 19:28:09,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 195 transitions, 1273 flow [2024-10-14 19:28:09,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:28:09,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 19:28:09,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 335 transitions. [2024-10-14 19:28:09,640 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6090909090909091 [2024-10-14 19:28:09,641 INFO L175 Difference]: Start difference. First operand has 70 places, 51 transitions, 221 flow. Second operand 10 states and 335 transitions. [2024-10-14 19:28:09,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 195 transitions, 1273 flow [2024-10-14 19:28:10,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 195 transitions, 1115 flow, removed 39 selfloop flow, removed 4 redundant places. [2024-10-14 19:28:10,041 INFO L231 Difference]: Finished difference. Result has 77 places, 56 transitions, 287 flow [2024-10-14 19:28:10,041 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=287, PETRI_PLACES=77, PETRI_TRANSITIONS=56} [2024-10-14 19:28:10,042 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 15 predicate places. [2024-10-14 19:28:10,042 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 56 transitions, 287 flow [2024-10-14 19:28:10,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 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) [2024-10-14 19:28:10,042 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:28:10,042 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] [2024-10-14 19:28:10,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 19:28:10,043 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:28:10,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:28:10,043 INFO L85 PathProgramCache]: Analyzing trace with hash 570133034, now seen corresponding path program 1 times [2024-10-14 19:28:10,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:28:10,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363965038] [2024-10-14 19:28:10,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:28:10,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:28:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:28:10,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:28:10,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:28:10,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363965038] [2024-10-14 19:28:10,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363965038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:28:10,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:28:10,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:28:10,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511735177] [2024-10-14 19:28:10,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:28:10,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:28:10,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:28:10,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:28:10,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:28:10,243 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-10-14 19:28:10,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 56 transitions, 287 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2024-10-14 19:28:10,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:28:10,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-10-14 19:28:10,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:28:14,902 INFO L124 PetriNetUnfolderBase]: 28719/42234 cut-off events. [2024-10-14 19:28:14,902 INFO L125 PetriNetUnfolderBase]: For 98670/99593 co-relation queries the response was YES. [2024-10-14 19:28:15,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133612 conditions, 42234 events. 28719/42234 cut-off events. For 98670/99593 co-relation queries the response was YES. Maximal size of possible extension queue 1549. Compared 302223 event pairs, 3729 based on Foata normal form. 921/42943 useless extension candidates. Maximal degree in co-relation 133590. Up to 16401 conditions per place. [2024-10-14 19:28:15,127 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 68 selfloop transitions, 15 changer transitions 94/189 dead transitions. [2024-10-14 19:28:15,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 189 transitions, 1297 flow [2024-10-14 19:28:15,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:28:15,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 19:28:15,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 325 transitions. [2024-10-14 19:28:15,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5909090909090909 [2024-10-14 19:28:15,129 INFO L175 Difference]: Start difference. First operand has 77 places, 56 transitions, 287 flow. Second operand 10 states and 325 transitions. [2024-10-14 19:28:15,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 189 transitions, 1297 flow [2024-10-14 19:28:15,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 189 transitions, 1250 flow, removed 21 selfloop flow, removed 3 redundant places. [2024-10-14 19:28:15,788 INFO L231 Difference]: Finished difference. Result has 86 places, 65 transitions, 453 flow [2024-10-14 19:28:15,788 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=453, PETRI_PLACES=86, PETRI_TRANSITIONS=65} [2024-10-14 19:28:15,789 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 24 predicate places. [2024-10-14 19:28:15,789 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 65 transitions, 453 flow [2024-10-14 19:28:15,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2024-10-14 19:28:15,790 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:28:15,790 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] [2024-10-14 19:28:15,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 19:28:15,790 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:28:15,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:28:15,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1479422698, now seen corresponding path program 1 times [2024-10-14 19:28:15,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:28:15,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143972013] [2024-10-14 19:28:15,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:28:15,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:28:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:28:15,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:28:15,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:28:15,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143972013] [2024-10-14 19:28:15,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143972013] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:28:15,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:28:15,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:28:15,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207898036] [2024-10-14 19:28:15,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:28:15,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:28:15,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:28:15,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:28:15,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:28:15,990 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-10-14 19:28:15,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 65 transitions, 453 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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) [2024-10-14 19:28:15,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:28:15,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-10-14 19:28:15,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:28:20,945 INFO L124 PetriNetUnfolderBase]: 26763/38904 cut-off events. [2024-10-14 19:28:20,945 INFO L125 PetriNetUnfolderBase]: For 128144/128312 co-relation queries the response was YES. [2024-10-14 19:28:21,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135196 conditions, 38904 events. 26763/38904 cut-off events. For 128144/128312 co-relation queries the response was YES. Maximal size of possible extension queue 1352. Compared 269859 event pairs, 5723 based on Foata normal form. 726/39613 useless extension candidates. Maximal degree in co-relation 135166. Up to 17803 conditions per place. [2024-10-14 19:28:21,253 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 69 selfloop transitions, 30 changer transitions 78/189 dead transitions. [2024-10-14 19:28:21,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 189 transitions, 1456 flow [2024-10-14 19:28:21,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 19:28:21,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-14 19:28:21,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 329 transitions. [2024-10-14 19:28:21,256 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5981818181818181 [2024-10-14 19:28:21,256 INFO L175 Difference]: Start difference. First operand has 86 places, 65 transitions, 453 flow. Second operand 10 states and 329 transitions. [2024-10-14 19:28:21,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 189 transitions, 1456 flow [2024-10-14 19:28:22,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 189 transitions, 1360 flow, removed 45 selfloop flow, removed 7 redundant places. [2024-10-14 19:28:22,419 INFO L231 Difference]: Finished difference. Result has 90 places, 74 transitions, 609 flow [2024-10-14 19:28:22,419 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=609, PETRI_PLACES=90, PETRI_TRANSITIONS=74} [2024-10-14 19:28:22,420 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 28 predicate places. [2024-10-14 19:28:22,420 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 74 transitions, 609 flow [2024-10-14 19:28:22,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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) [2024-10-14 19:28:22,420 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:28:22,421 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:28:22,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 19:28:22,421 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:28:22,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:28:22,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1766035693, now seen corresponding path program 1 times [2024-10-14 19:28:22,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:28:22,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452891828] [2024-10-14 19:28:22,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:28:22,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:28:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:28:22,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:28:22,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:28:22,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452891828] [2024-10-14 19:28:22,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452891828] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:28:22,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:28:22,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 19:28:22,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586889279] [2024-10-14 19:28:22,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:28:22,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 19:28:22,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:28:22,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 19:28:22,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 19:28:22,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 55 [2024-10-14 19:28:22,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 74 transitions, 609 flow. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-10-14 19:28:22,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:28:22,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 55 [2024-10-14 19:28:22,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:28:28,943 INFO L124 PetriNetUnfolderBase]: 37969/57579 cut-off events. [2024-10-14 19:28:28,944 INFO L125 PetriNetUnfolderBase]: For 82794/87510 co-relation queries the response was YES. [2024-10-14 19:28:29,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149123 conditions, 57579 events. 37969/57579 cut-off events. For 82794/87510 co-relation queries the response was YES. Maximal size of possible extension queue 2017. Compared 444462 event pairs, 5883 based on Foata normal form. 2736/58919 useless extension candidates. Maximal degree in co-relation 149090. Up to 30569 conditions per place. [2024-10-14 19:28:29,442 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 60 selfloop transitions, 6 changer transitions 0/110 dead transitions. [2024-10-14 19:28:29,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 110 transitions, 879 flow [2024-10-14 19:28:29,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 19:28:29,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-14 19:28:29,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 146 transitions. [2024-10-14 19:28:29,444 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6636363636363637 [2024-10-14 19:28:29,444 INFO L175 Difference]: Start difference. First operand has 90 places, 74 transitions, 609 flow. Second operand 4 states and 146 transitions. [2024-10-14 19:28:29,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 110 transitions, 879 flow [2024-10-14 19:28:30,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 110 transitions, 839 flow, removed 20 selfloop flow, removed 10 redundant places. [2024-10-14 19:28:30,052 INFO L231 Difference]: Finished difference. Result has 79 places, 79 transitions, 615 flow [2024-10-14 19:28:30,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=615, PETRI_PLACES=79, PETRI_TRANSITIONS=79} [2024-10-14 19:28:30,053 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 17 predicate places. [2024-10-14 19:28:30,053 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 79 transitions, 615 flow [2024-10-14 19:28:30,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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) [2024-10-14 19:28:30,053 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:28:30,053 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 19:28:30,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 19:28:30,053 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-10-14 19:28:30,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:28:30,054 INFO L85 PathProgramCache]: Analyzing trace with hash -397688725, now seen corresponding path program 1 times [2024-10-14 19:28:30,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:28:30,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566255810] [2024-10-14 19:28:30,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:28:30,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:28:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:28:30,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:28:30,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:28:30,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566255810] [2024-10-14 19:28:30,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566255810] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:28:30,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:28:30,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 19:28:30,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870620652] [2024-10-14 19:28:30,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:28:30,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 19:28:30,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:28:30,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 19:28:30,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 19:28:30,278 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 55 [2024-10-14 19:28:30,278 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 79 transitions, 615 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2024-10-14 19:28:30,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:28:30,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 55 [2024-10-14 19:28:30,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand