./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix008.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix008.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e3ed0a0904abf0f880f0f4cc8dc485f79821c4ff1d089df229be68889497ed8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:10:14,074 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:10:14,154 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:10:14,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:10:14,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:10:14,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:10:14,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:10:14,203 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:10:14,203 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:10:14,205 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:10:14,205 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:10:14,206 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:10:14,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:10:14,208 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:10:14,208 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:10:14,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:10:14,208 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:10:14,209 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:10:14,209 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:10:14,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:10:14,209 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:10:14,213 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:10:14,213 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:10:14,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:10:14,213 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:10:14,213 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:10:14,214 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:10:14,214 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:10:14,214 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:10:14,214 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:10:14,215 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:10:14,215 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:10:14,215 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:10:14,215 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:10:14,215 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:10:14,216 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:10:14,216 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:10:14,216 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:10:14,216 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:10:14,216 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:10:14,217 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:10:14,217 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:10:14,217 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e3ed0a0904abf0f880f0f4cc8dc485f79821c4ff1d089df229be68889497ed8 [2024-11-17 03:10:14,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:10:14,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:10:14,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:10:14,496 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:10:14,497 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:10:14,498 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix008.opt.i [2024-11-17 03:10:15,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:10:16,175 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:10:16,176 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix008.opt.i [2024-11-17 03:10:16,197 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18958b289/b36184174a8e4605a0920ecc4f6943f5/FLAG1a559f4d4 [2024-11-17 03:10:16,214 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18958b289/b36184174a8e4605a0920ecc4f6943f5 [2024-11-17 03:10:16,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:10:16,218 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:10:16,219 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:10:16,220 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:10:16,225 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:10:16,226 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:10:16" (1/1) ... [2024-11-17 03:10:16,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c783b72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:16, skipping insertion in model container [2024-11-17 03:10:16,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:10:16" (1/1) ... [2024-11-17 03:10:16,275 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:10:16,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:10:16,704 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:10:16,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:10:16,818 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:10:16,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:16 WrapperNode [2024-11-17 03:10:16,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:10:16,820 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:10:16,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:10:16,820 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:10:16,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:16" (1/1) ... [2024-11-17 03:10:16,846 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:16" (1/1) ... [2024-11-17 03:10:16,885 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 154 [2024-11-17 03:10:16,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:10:16,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:10:16,887 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:10:16,887 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:10:16,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:16" (1/1) ... [2024-11-17 03:10:16,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:16" (1/1) ... [2024-11-17 03:10:16,908 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:16" (1/1) ... [2024-11-17 03:10:16,939 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 03:10:16,939 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:16" (1/1) ... [2024-11-17 03:10:16,939 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:16" (1/1) ... [2024-11-17 03:10:16,951 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:16" (1/1) ... [2024-11-17 03:10:16,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:16" (1/1) ... [2024-11-17 03:10:16,959 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:16" (1/1) ... [2024-11-17 03:10:16,961 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:16" (1/1) ... [2024-11-17 03:10:16,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:10:16,970 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:10:16,970 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:10:16,970 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:10:16,973 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:16" (1/1) ... [2024-11-17 03:10:16,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:10:16,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:10:17,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 03:10:17,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 03:10:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:10:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:10:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-17 03:10:17,064 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-17 03:10:17,064 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-17 03:10:17,065 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-17 03:10:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-17 03:10:17,065 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-17 03:10:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-17 03:10:17,065 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-17 03:10:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:10:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:10:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:10:17,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:10:17,069 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:10:17,220 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:10:17,223 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:10:17,624 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:10:17,624 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:10:17,959 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:10:17,960 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:10:17,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:10:17 BoogieIcfgContainer [2024-11-17 03:10:17,961 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:10:17,964 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:10:17,965 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:10:17,968 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:10:17,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:10:16" (1/3) ... [2024-11-17 03:10:17,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d787ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:10:17, skipping insertion in model container [2024-11-17 03:10:17,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:10:16" (2/3) ... [2024-11-17 03:10:17,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d787ea1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:10:17, skipping insertion in model container [2024-11-17 03:10:17,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:10:17" (3/3) ... [2024-11-17 03:10:17,973 INFO L112 eAbstractionObserver]: Analyzing ICFG mix008.opt.i [2024-11-17 03:10:17,991 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:10:17,992 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-17 03:10:17,992 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:10:18,066 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 03:10:18,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 55 transitions, 126 flow [2024-11-17 03:10:18,142 INFO L124 PetriNetUnfolderBase]: 2/51 cut-off events. [2024-11-17 03:10:18,143 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:10:18,146 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 5. Compared 106 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. [2024-11-17 03:10:18,148 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 55 transitions, 126 flow [2024-11-17 03:10:18,153 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 51 transitions, 114 flow [2024-11-17 03:10:18,165 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:10:18,173 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;@1400aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:10:18,174 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-17 03:10:18,183 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:10:18,184 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2024-11-17 03:10:18,184 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:10:18,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:10:18,185 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:10:18,185 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:10:18,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:10:18,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1121644225, now seen corresponding path program 1 times [2024-11-17 03:10:18,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:10:18,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838422111] [2024-11-17 03:10:18,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:10:18,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:10:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:10:18,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:10:18,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:10:18,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838422111] [2024-11-17 03:10:18,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838422111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:10:18,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:10:18,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:10:18,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381163178] [2024-11-17 03:10:18,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:10:18,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:10:18,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:10:18,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:10:18,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:10:18,844 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:10:18,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 51 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:10:18,847 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:10:18,847 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:10:18,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:10:26,277 INFO L124 PetriNetUnfolderBase]: 59279/78555 cut-off events. [2024-11-17 03:10:26,277 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2024-11-17 03:10:26,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 156659 conditions, 78555 events. 59279/78555 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 2141. Compared 468352 event pairs, 7511 based on Foata normal form. 3528/82056 useless extension candidates. Maximal degree in co-relation 156647. Up to 66889 conditions per place. [2024-11-17 03:10:27,030 INFO L140 encePairwiseOnDemand]: 50/55 looper letters, 60 selfloop transitions, 2 changer transitions 2/72 dead transitions. [2024-11-17 03:10:27,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 72 transitions, 284 flow [2024-11-17 03:10:27,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:10:27,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:10:27,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-11-17 03:10:27,042 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-11-17 03:10:27,044 INFO L175 Difference]: Start difference. First operand has 62 places, 51 transitions, 114 flow. Second operand 3 states and 105 transitions. [2024-11-17 03:10:27,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 72 transitions, 284 flow [2024-11-17 03:10:27,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 72 transitions, 280 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 03:10:27,054 INFO L231 Difference]: Finished difference. Result has 58 places, 46 transitions, 104 flow [2024-11-17 03:10:27,058 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} [2024-11-17 03:10:27,062 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -4 predicate places. [2024-11-17 03:10:27,064 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 104 flow [2024-11-17 03:10:27,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:10:27,065 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:10:27,065 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:10:27,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:10:27,066 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:10:27,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:10:27,068 INFO L85 PathProgramCache]: Analyzing trace with hash 389496161, now seen corresponding path program 1 times [2024-11-17 03:10:27,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:10:27,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836158463] [2024-11-17 03:10:27,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:10:27,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:10:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:10:27,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:10:27,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:10:27,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836158463] [2024-11-17 03:10:27,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836158463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:10:27,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:10:27,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:10:27,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21795946] [2024-11-17 03:10:27,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:10:27,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:10:27,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:10:27,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:10:27,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:10:27,152 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 55 [2024-11-17 03:10:27,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:10:27,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:10:27,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 55 [2024-11-17 03:10:27,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:10:33,181 INFO L124 PetriNetUnfolderBase]: 53315/74859 cut-off events. [2024-11-17 03:10:33,182 INFO L125 PetriNetUnfolderBase]: For 2268/2268 co-relation queries the response was YES. [2024-11-17 03:10:33,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147501 conditions, 74859 events. 53315/74859 cut-off events. For 2268/2268 co-relation queries the response was YES. Maximal size of possible extension queue 2165. Compared 497288 event pairs, 53315 based on Foata normal form. 1764/76344 useless extension candidates. Maximal degree in co-relation 147491. Up to 69780 conditions per place. [2024-11-17 03:10:33,614 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 36 selfloop transitions, 1 changer transitions 1/45 dead transitions. [2024-11-17 03:10:33,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 45 transitions, 178 flow [2024-11-17 03:10:33,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:10:33,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:10:33,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-11-17 03:10:33,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43636363636363634 [2024-11-17 03:10:33,617 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 72 transitions. [2024-11-17 03:10:33,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 45 transitions, 178 flow [2024-11-17 03:10:33,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 174 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:10:33,638 INFO L231 Difference]: Finished difference. Result has 56 places, 44 transitions, 98 flow [2024-11-17 03:10:33,638 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} [2024-11-17 03:10:33,639 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -6 predicate places. [2024-11-17 03:10:33,639 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 44 transitions, 98 flow [2024-11-17 03:10:33,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:10:33,640 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:10:33,640 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:10:33,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:10:33,641 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:10:33,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:10:33,643 INFO L85 PathProgramCache]: Analyzing trace with hash 389496756, now seen corresponding path program 1 times [2024-11-17 03:10:33,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:10:33,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966300796] [2024-11-17 03:10:33,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:10:33,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:10:33,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:10:33,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:10:33,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:10:33,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966300796] [2024-11-17 03:10:33,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966300796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:10:33,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:10:33,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:10:33,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491945025] [2024-11-17 03:10:33,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:10:33,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:10:33,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:10:33,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:10:33,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:10:33,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:10:33,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:10:33,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:10:33,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:10:33,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:10:37,674 INFO L124 PetriNetUnfolderBase]: 42351/60541 cut-off events. [2024-11-17 03:10:37,675 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:10:37,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117551 conditions, 60541 events. 42351/60541 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1838. Compared 412391 event pairs, 5317 based on Foata normal form. 1764/62286 useless extension candidates. Maximal degree in co-relation 117545. Up to 34369 conditions per place. [2024-11-17 03:10:38,026 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 78 selfloop transitions, 6 changer transitions 1/92 dead transitions. [2024-11-17 03:10:38,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 92 transitions, 370 flow [2024-11-17 03:10:38,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:10:38,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:10:38,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2024-11-17 03:10:38,032 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-11-17 03:10:38,033 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 98 flow. Second operand 4 states and 135 transitions. [2024-11-17 03:10:38,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 92 transitions, 370 flow [2024-11-17 03:10:38,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 92 transitions, 369 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:10:38,036 INFO L231 Difference]: Finished difference. Result has 59 places, 48 transitions, 139 flow [2024-11-17 03:10:38,037 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=139, PETRI_PLACES=59, PETRI_TRANSITIONS=48} [2024-11-17 03:10:38,037 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, -3 predicate places. [2024-11-17 03:10:38,038 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 48 transitions, 139 flow [2024-11-17 03:10:38,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:10:38,038 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:10:38,039 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:10:38,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:10:38,039 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:10:38,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:10:38,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1595465204, now seen corresponding path program 1 times [2024-11-17 03:10:38,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:10:38,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359257060] [2024-11-17 03:10:38,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:10:38,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:10:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:10:38,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:10:38,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:10:38,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359257060] [2024-11-17 03:10:38,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359257060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:10:38,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:10:38,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:10:38,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451391699] [2024-11-17 03:10:38,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:10:38,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:10:38,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:10:38,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:10:38,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:10:38,224 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:10:38,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 48 transitions, 139 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:10:38,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:10:38,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:10:38,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:10:40,951 INFO L124 PetriNetUnfolderBase]: 26351/37661 cut-off events. [2024-11-17 03:10:40,951 INFO L125 PetriNetUnfolderBase]: For 7054/7054 co-relation queries the response was YES. [2024-11-17 03:10:41,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83490 conditions, 37661 events. 26351/37661 cut-off events. For 7054/7054 co-relation queries the response was YES. Maximal size of possible extension queue 934. Compared 235858 event pairs, 3159 based on Foata normal form. 1364/39006 useless extension candidates. Maximal degree in co-relation 83481. Up to 14929 conditions per place. [2024-11-17 03:10:41,123 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 101 selfloop transitions, 10 changer transitions 1/119 dead transitions. [2024-11-17 03:10:41,124 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 119 transitions, 534 flow [2024-11-17 03:10:41,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:10:41,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:10:41,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 174 transitions. [2024-11-17 03:10:41,126 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6327272727272727 [2024-11-17 03:10:41,126 INFO L175 Difference]: Start difference. First operand has 59 places, 48 transitions, 139 flow. Second operand 5 states and 174 transitions. [2024-11-17 03:10:41,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 119 transitions, 534 flow [2024-11-17 03:10:41,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 119 transitions, 523 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-17 03:10:41,147 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 191 flow [2024-11-17 03:10:41,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=191, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2024-11-17 03:10:41,150 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 1 predicate places. [2024-11-17 03:10:41,150 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 191 flow [2024-11-17 03:10:41,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:10:41,151 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:10:41,151 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:10:41,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:10:41,151 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:10:41,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:10:41,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1514560162, now seen corresponding path program 1 times [2024-11-17 03:10:41,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:10:41,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339647510] [2024-11-17 03:10:41,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:10:41,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:10:41,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:10:41,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:10:41,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:10:41,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339647510] [2024-11-17 03:10:41,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339647510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:10:41,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:10:41,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:10:41,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209847347] [2024-11-17 03:10:41,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:10:41,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:10:41,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:10:41,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:10:41,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:10:41,339 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:10:41,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:10:41,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:10:41,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:10:41,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:10:43,323 INFO L124 PetriNetUnfolderBase]: 15603/21837 cut-off events. [2024-11-17 03:10:43,323 INFO L125 PetriNetUnfolderBase]: For 13034/13034 co-relation queries the response was YES. [2024-11-17 03:10:43,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53238 conditions, 21837 events. 15603/21837 cut-off events. For 13034/13034 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 119563 event pairs, 2769 based on Foata normal form. 644/22462 useless extension candidates. Maximal degree in co-relation 53227. Up to 6400 conditions per place. [2024-11-17 03:10:43,417 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 122 selfloop transitions, 14 changer transitions 1/144 dead transitions. [2024-11-17 03:10:43,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 144 transitions, 697 flow [2024-11-17 03:10:43,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:10:43,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:10:43,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 211 transitions. [2024-11-17 03:10:43,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6393939393939394 [2024-11-17 03:10:43,421 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 191 flow. Second operand 6 states and 211 transitions. [2024-11-17 03:10:43,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 144 transitions, 697 flow [2024-11-17 03:10:43,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 144 transitions, 667 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-17 03:10:43,584 INFO L231 Difference]: Finished difference. Result has 66 places, 56 transitions, 241 flow [2024-11-17 03:10:43,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=66, PETRI_TRANSITIONS=56} [2024-11-17 03:10:43,585 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 4 predicate places. [2024-11-17 03:10:43,586 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 56 transitions, 241 flow [2024-11-17 03:10:43,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:10:43,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:10:43,586 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:10:43,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:10:43,587 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:10:43,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:10:43,587 INFO L85 PathProgramCache]: Analyzing trace with hash 367047641, now seen corresponding path program 1 times [2024-11-17 03:10:43,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:10:43,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734032732] [2024-11-17 03:10:43,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:10:43,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:10:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:10:43,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:10:43,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:10:43,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734032732] [2024-11-17 03:10:43,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734032732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:10:43,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:10:43,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:10:43,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131136723] [2024-11-17 03:10:43,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:10:43,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:10:43,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:10:43,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:10:43,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:10:43,846 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:10:43,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 56 transitions, 241 flow. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:10:43,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:10:43,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:10:43,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:10:44,937 INFO L124 PetriNetUnfolderBase]: 12135/16589 cut-off events. [2024-11-17 03:10:44,937 INFO L125 PetriNetUnfolderBase]: For 12118/12118 co-relation queries the response was YES. [2024-11-17 03:10:44,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41983 conditions, 16589 events. 12135/16589 cut-off events. For 12118/12118 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 86222 event pairs, 2575 based on Foata normal form. 160/16730 useless extension candidates. Maximal degree in co-relation 41971. Up to 6400 conditions per place. [2024-11-17 03:10:45,023 INFO L140 encePairwiseOnDemand]: 48/55 looper letters, 105 selfloop transitions, 18 changer transitions 1/131 dead transitions. [2024-11-17 03:10:45,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 131 transitions, 655 flow [2024-11-17 03:10:45,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:10:45,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:10:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 210 transitions. [2024-11-17 03:10:45,025 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2024-11-17 03:10:45,025 INFO L175 Difference]: Start difference. First operand has 66 places, 56 transitions, 241 flow. Second operand 7 states and 210 transitions. [2024-11-17 03:10:45,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 131 transitions, 655 flow [2024-11-17 03:10:45,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 131 transitions, 609 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-17 03:10:45,349 INFO L231 Difference]: Finished difference. Result has 69 places, 56 transitions, 251 flow [2024-11-17 03:10:45,350 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=251, PETRI_PLACES=69, PETRI_TRANSITIONS=56} [2024-11-17 03:10:45,350 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 7 predicate places. [2024-11-17 03:10:45,350 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 56 transitions, 251 flow [2024-11-17 03:10:45,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:10:45,351 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:10:45,351 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:10:45,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:10:45,351 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:10:45,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:10:45,352 INFO L85 PathProgramCache]: Analyzing trace with hash -519329079, now seen corresponding path program 1 times [2024-11-17 03:10:45,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:10:45,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828572051] [2024-11-17 03:10:45,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:10:45,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:10:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:10:45,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:10:45,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:10:45,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828572051] [2024-11-17 03:10:45,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828572051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:10:45,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:10:45,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:10:45,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225923289] [2024-11-17 03:10:45,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:10:45,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:10:45,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:10:45,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:10:45,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:10:45,815 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:10:45,815 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 56 transitions, 251 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:10:45,815 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:10:45,816 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:10:45,816 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:10:48,436 INFO L124 PetriNetUnfolderBase]: 25213/34545 cut-off events. [2024-11-17 03:10:48,438 INFO L125 PetriNetUnfolderBase]: For 27300/27300 co-relation queries the response was YES. [2024-11-17 03:10:48,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88452 conditions, 34545 events. 25213/34545 cut-off events. For 27300/27300 co-relation queries the response was YES. Maximal size of possible extension queue 1093. Compared 200981 event pairs, 5781 based on Foata normal form. 32/34524 useless extension candidates. Maximal degree in co-relation 88439. Up to 14403 conditions per place. [2024-11-17 03:10:48,644 INFO L140 encePairwiseOnDemand]: 43/55 looper letters, 97 selfloop transitions, 10 changer transitions 45/159 dead transitions. [2024-11-17 03:10:48,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 159 transitions, 1023 flow [2024-11-17 03:10:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 03:10:48,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 03:10:48,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 214 transitions. [2024-11-17 03:10:48,647 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4863636363636364 [2024-11-17 03:10:48,647 INFO L175 Difference]: Start difference. First operand has 69 places, 56 transitions, 251 flow. Second operand 8 states and 214 transitions. [2024-11-17 03:10:48,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 159 transitions, 1023 flow [2024-11-17 03:10:49,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 159 transitions, 741 flow, removed 51 selfloop flow, removed 10 redundant places. [2024-11-17 03:10:49,133 INFO L231 Difference]: Finished difference. Result has 72 places, 62 transitions, 220 flow [2024-11-17 03:10:49,133 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=220, PETRI_PLACES=72, PETRI_TRANSITIONS=62} [2024-11-17 03:10:49,134 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 10 predicate places. [2024-11-17 03:10:49,134 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 62 transitions, 220 flow [2024-11-17 03:10:49,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:10:49,134 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:10:49,134 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:10:49,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:10:49,134 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:10:49,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:10:49,135 INFO L85 PathProgramCache]: Analyzing trace with hash 454122283, now seen corresponding path program 2 times [2024-11-17 03:10:49,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:10:49,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797715185] [2024-11-17 03:10:49,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:10:49,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:10:49,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:10:49,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:10:49,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:10:49,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797715185] [2024-11-17 03:10:49,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797715185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:10:49,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:10:49,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:10:49,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776033136] [2024-11-17 03:10:49,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:10:49,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:10:49,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:10:49,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:10:49,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:10:49,542 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-17 03:10:49,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 62 transitions, 220 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:10:49,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:10:49,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-17 03:10:49,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:10:51,332 INFO L124 PetriNetUnfolderBase]: 16817/23222 cut-off events. [2024-11-17 03:10:51,332 INFO L125 PetriNetUnfolderBase]: For 7097/7097 co-relation queries the response was YES. [2024-11-17 03:10:51,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59018 conditions, 23222 events. 16817/23222 cut-off events. For 7097/7097 co-relation queries the response was YES. Maximal size of possible extension queue 658. Compared 125468 event pairs, 3825 based on Foata normal form. 16/23236 useless extension candidates. Maximal degree in co-relation 59004. Up to 11748 conditions per place. [2024-11-17 03:10:51,535 INFO L140 encePairwiseOnDemand]: 42/55 looper letters, 89 selfloop transitions, 17 changer transitions 28/141 dead transitions. [2024-11-17 03:10:51,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 141 transitions, 742 flow [2024-11-17 03:10:51,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:10:51,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:10:51,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 187 transitions. [2024-11-17 03:10:51,537 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4857142857142857 [2024-11-17 03:10:51,537 INFO L175 Difference]: Start difference. First operand has 72 places, 62 transitions, 220 flow. Second operand 7 states and 187 transitions. [2024-11-17 03:10:51,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 141 transitions, 742 flow [2024-11-17 03:10:51,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 141 transitions, 721 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-17 03:10:51,547 INFO L231 Difference]: Finished difference. Result has 73 places, 73 transitions, 334 flow [2024-11-17 03:10:51,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=334, PETRI_PLACES=73, PETRI_TRANSITIONS=73} [2024-11-17 03:10:51,549 INFO L277 CegarLoopForPetriNet]: 62 programPoint places, 11 predicate places. [2024-11-17 03:10:51,549 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 73 transitions, 334 flow [2024-11-17 03:10:51,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:10:51,550 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:10:51,550 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:10:51,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 03:10:51,550 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (and 5 more)] === [2024-11-17 03:10:51,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:10:51,551 INFO L85 PathProgramCache]: Analyzing trace with hash -444656099, now seen corresponding path program 3 times [2024-11-17 03:10:51,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:10:51,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674503275] [2024-11-17 03:10:51,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:10:51,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:10:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat